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/* SPDX-License-Identifier: Apache 2.0 */
/* Copyright Contributors to the ODPi Egeria project. */
package org.odpi.openmetadata.commonservices.generichandlers;

import org.odpi.openmetadata.commonservices.ffdc.InvalidParameterHandler;
import org.odpi.openmetadata.commonservices.repositoryhandler.RepositoryHandler;
import org.odpi.openmetadata.frameworks.auditlog.AuditLog;
import org.odpi.openmetadata.frameworks.connectors.ffdc.InvalidParameterException;
import org.odpi.openmetadata.frameworks.connectors.ffdc.PropertyServerException;
import org.odpi.openmetadata.frameworks.connectors.ffdc.UserNotAuthorizedException;
import org.odpi.openmetadata.metadatasecurity.server.OpenMetadataServerSecurityVerifier;
import org.odpi.openmetadata.repositoryservices.connectors.stores.metadatacollectionstore.properties.instances.*;
import org.odpi.openmetadata.repositoryservices.connectors.stores.metadatacollectionstore.repositoryconnector.OMRSRepositoryHelper;

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * ProcessHandler provides the methods to create and maintain processes and their contents.
 * It does not currently support effectivity dates - but probably should.
 */
public class ProcessHandler extends ReferenceableHandler
{
    private AssetHandler                                          processHandler;
    private PortHandler                                              portHandler;
    private OpenMetadataAPIGenericConverter                     dataFlowConverter;
    private Class                                               dataFlowBeanClass;
    private OpenMetadataAPIGenericConverter                  controlFlowConverter;
    private Class                                            controlFlowBeanClass;
    private OpenMetadataAPIGenericConverter                  processCallConverter;
    private Class                                            processCallBeanClass;
    private OpenMetadataAPIGenericConverter               validValueMappingConverter;
    private Class                                         validValueMappingClass;


    /**
     * Construct the handler information needed to interact with the repository services
     *
     * @param converter               specific converter for the PROCESS bean class
     * @param beanClass               name of bean class that is represented by the generic class PROCESS
     * @param portConverter           specific converter for the PORT bean class
     * @param portBeanClass           name of bean class that is represented by the generic class PORT
     * @param dataFlowConverter       specific converter for the DATA_FLOW bean class
     * @param dataFlowBeanClass       name of bean class that is represented by the generic class DATA_FLOW
     * @param controlFlowConverter    specific converter for the CONTROL_FLOW bean class
     * @param controlFlowBeanClass    name of bean class that is represented by the generic class CONTROL_FLOW
     * @param processCallConverter    specific converter for the PROCESS_CALL bean class
     * @param processCallBeanClass    name of bean class that is represented by the generic class PROCESS_CALL
     * @param lineageMappingConverter specific converter for the LINEAGE_MAPPING bean class
     * @param lineageMappingClass     name of bean class that is represented by the generic class LINEAGE_MAPPING
     * @param serviceName             name of this service
     * @param serverName              name of the local server
     * @param invalidParameterHandler handler for managing parameter errors
     * @param repositoryHandler       manages calls to the repository services
     * @param repositoryHelper        provides utilities for manipulating the repository services objects
     * @param localServerUserId       userId for this server
     * @param securityVerifier        open metadata security services verifier
     * @param supportedZones          list of zones that the access service is allowed to serve Asset instances from.
     * @param defaultZones            list of zones that the access service should set in all new Asset instances.
     * @param publishZones            list of zones that the access service sets up in published Asset instances.
     * @param auditLog destination for audit log events.
     */
    public ProcessHandler(OpenMetadataAPIGenericConverter         converter,
                          Class                                   beanClass,
                          OpenMetadataAPIGenericConverter            portConverter,
                          Class                                      portBeanClass,
                          OpenMetadataAPIGenericConverter       dataFlowConverter,
                          Class                                 dataFlowBeanClass,
                          OpenMetadataAPIGenericConverter    controlFlowConverter,
                          Class                              controlFlowBeanClass,
                          OpenMetadataAPIGenericConverter    processCallConverter,
                          Class                              processCallBeanClass,
                          OpenMetadataAPIGenericConverter lineageMappingConverter,
                          Class                           lineageMappingClass,
                          String                                           serviceName,
                          String                                           serverName,
                          InvalidParameterHandler                          invalidParameterHandler,
                          RepositoryHandler                                repositoryHandler,
                          OMRSRepositoryHelper                             repositoryHelper,
                          String                                           localServerUserId,
                          OpenMetadataServerSecurityVerifier               securityVerifier,
                          List                                     supportedZones,
                          List                                     defaultZones,
                          List                                     publishZones,
                          AuditLog                                         auditLog)

    {
        super(converter,
              beanClass,
              serviceName,
              serverName,
              invalidParameterHandler,
              repositoryHandler,
              repositoryHelper,
              localServerUserId,
              securityVerifier,
              supportedZones,
              defaultZones,
              publishZones,
              auditLog);

        this.processHandler = new AssetHandler<>(converter,
                                                 beanClass,
                                                 serviceName,
                                                 serverName,
                                                 invalidParameterHandler,
                                                 repositoryHandler,
                                                 repositoryHelper,
                                                 localServerUserId,
                                                 securityVerifier,
                                                 supportedZones,
                                                 defaultZones,
                                                 publishZones,
                                                 auditLog);

        this.portHandler = new PortHandler<>(portConverter,
                                             portBeanClass,
                                             serviceName,
                                             serverName,
                                             invalidParameterHandler,
                                             repositoryHandler,
                                             repositoryHelper,
                                             localServerUserId,
                                             securityVerifier,
                                             supportedZones,
                                             defaultZones,
                                             publishZones,
                                             auditLog);

        this.dataFlowConverter          = dataFlowConverter;
        this.dataFlowBeanClass          = dataFlowBeanClass;
        this.controlFlowConverter       = controlFlowConverter;
        this.controlFlowBeanClass       = controlFlowBeanClass;
        this.processCallConverter       = processCallConverter;
        this.processCallBeanClass       = processCallBeanClass;
        this.validValueMappingConverter = lineageMappingConverter;
        this.validValueMappingClass     = lineageMappingClass;
    }


    /* =====================================================================================================================
     * A process describes a well defined series of steps that gets something done.
     */

    /**
     * Create a new metadata element to represent a process.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param qualifiedName unique name for this asset
     * @param technicalName the stored display name property for the asset
     * @param technicalDescription the stored description property associated with the asset
     * @param formula the formula that characterize the processing behavior of the process
     * @param implementationLanguage the implementation language used to create the process
     * @param additionalProperties any arbitrary properties not part of the type system
     * @param suppliedTypeName name of the type that is a subtype of asset - or null to create standard type
     * @param suppliedExtendedProperties properties from any subtype
     * @param initialStatus status value for the new process (default = ACTIVE)
     * @param methodName calling method
     *
     * @return unique identifier of the new process
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public String createProcess(String              userId,
                                String              externalSourceGUID,
                                String              externalSourceName,
                                String              qualifiedName,
                                String              technicalName,
                                String              technicalDescription,
                                String              formula,
                                String              implementationLanguage,
                                Map additionalProperties,
                                String              suppliedTypeName,
                                Map suppliedExtendedProperties,
                                InstanceStatus      initialStatus,
                                String              methodName) throws InvalidParameterException,
                                                                       UserNotAuthorizedException,
                                                                       PropertyServerException
    {
        String typeName = OpenMetadataAPIMapper.PROCESS_TYPE_NAME;

        if (suppliedTypeName != null)
        {
            typeName = suppliedTypeName;
        }

        invalidParameterHandler.validateTypeName(typeName,
                                                 OpenMetadataAPIMapper.PROCESS_TYPE_NAME,
                                                 serviceName,
                                                 methodName,
                                                 repositoryHelper);

        Map extendedProperties = suppliedExtendedProperties;

        if (formula != null)
        {
            if (extendedProperties == null)
            {
                extendedProperties = new HashMap<>();
            }

            extendedProperties.put(OpenMetadataAPIMapper.FORMULA_PROPERTY_NAME, formula);
        }

        if (implementationLanguage != null)
        {
            if (extendedProperties == null)
            {
                extendedProperties = new HashMap<>();
            }

            extendedProperties.put(OpenMetadataAPIMapper.IMPLEMENTATION_LANGUAGE_PROPERTY_NAME, implementationLanguage);
        }

        return processHandler.createAssetInRepository(userId,
                                                      externalSourceGUID,
                                                      externalSourceName,
                                                      qualifiedName,
                                                      technicalName,
                                                      technicalDescription,
                                                      additionalProperties,
                                                      typeName,
                                                      extendedProperties,
                                                      initialStatus,
                                                      methodName);
    }


    /**
     * Create a new metadata element to represent a process using an existing metadata element as a template.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param templateGUID unique identifier of the metadata element to copy
     * @param templateGUIDParameterName parameter supplying templateGUID
     * @param qualifiedName unique name for the term - used in other configuration
     * @param qualifiedNameParameterName parameter supplying qualifiedName
     * @param displayName short display name for the term
     * @param description description of the  term
     * @param methodName calling method
     *
     * @return unique identifier of the new process
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public String createProcessFromTemplate(String userId,
                                            String externalSourceGUID,
                                            String externalSourceName,
                                            String templateGUID,
                                            String templateGUIDParameterName,
                                            String qualifiedName,
                                            String qualifiedNameParameterName,
                                            String displayName,
                                            String description,
                                            String methodName) throws InvalidParameterException,
                                                                                          UserNotAuthorizedException,
                                                                                          PropertyServerException
    {
        return processHandler.addAssetFromTemplate(userId,
                                                   externalSourceGUID,
                                                   externalSourceName,
                                                   templateGUID,
                                                   templateGUIDParameterName,
                                                   OpenMetadataAPIMapper.PROCESS_TYPE_GUID,
                                                   OpenMetadataAPIMapper.PROCESS_TYPE_NAME,
                                                   qualifiedName,
                                                   qualifiedNameParameterName,
                                                   displayName,
                                                   description,
                                                   null,
                                                   methodName);
    }


    /**
     * Update the metadata element representing a process.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param processGUID unique identifier of the metadata element to update
     * @param processGUIDParameterName unique identifier of the process in the external process manager
     * @param isMergeUpdate should the new properties be merged with existing properties (true) or completely replace them (false)?
     * @param qualifiedName unique name for this asset
     * @param technicalName the stored display name property for the asset
     * @param technicalDescription the stored description property associated with the asset
     * @param formula the formula that characterize the processing behavior of the process
     * @param implementationLanguage the implementation language used to create the process
     * @param additionalProperties any arbitrary properties not part of the type system
     * @param suppliedTypeName name of the type that is a subtype of asset - or null to create standard type
     * @param suppliedExtendedProperties properties from any subtype
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void updateProcess(String              userId,
                              String              externalSourceGUID,
                              String              externalSourceName,
                              String              processGUID,
                              String              processGUIDParameterName,
                              boolean             isMergeUpdate,
                              String              qualifiedName,
                              String              technicalName,
                              String              technicalDescription,
                              String              formula,
                              String              implementationLanguage,
                              Map additionalProperties,
                              String              suppliedTypeName,
                              Map suppliedExtendedProperties,
                              String              methodName) throws InvalidParameterException,
                                                                     UserNotAuthorizedException,
                                                                     PropertyServerException
    {
        String typeName = OpenMetadataAPIMapper.PROCESS_TYPE_NAME;

        if (suppliedTypeName != null)
        {
            typeName = suppliedTypeName;
        }

        String typeGUID = invalidParameterHandler.validateTypeName(typeName,
                                                                   OpenMetadataAPIMapper.ASSET_TYPE_NAME,
                                                                   serviceName,
                                                                   methodName,
                                                                   repositoryHelper);

        Map extendedProperties = suppliedExtendedProperties;

        if (formula != null)
        {
            if (extendedProperties == null)
            {
                extendedProperties = new HashMap<>();
            }

            extendedProperties.put(OpenMetadataAPIMapper.FORMULA_PROPERTY_NAME, formula);
        }

        if (implementationLanguage != null)
        {
            if (extendedProperties == null)
            {
                extendedProperties = new HashMap<>();
            }

            extendedProperties.put(OpenMetadataAPIMapper.IMPLEMENTATION_LANGUAGE_PROPERTY_NAME, implementationLanguage);
        }

        processHandler.updateAsset(userId,
                                   externalSourceGUID,
                                   externalSourceName,
                                   processGUID,
                                   processGUIDParameterName,
                                   qualifiedName,
                                   technicalName,
                                   technicalDescription,
                                   additionalProperties,
                                   typeGUID,
                                   typeName,
                                   extendedProperties,
                                   isMergeUpdate,
                                   methodName);
    }


    /**
     * Update the status of the metadata element representing a process.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param processGUID unique identifier of the process to update
     * @param processGUIDParameterName unique identifier of the process in the external process manager
     * @param processStatus new status for the process
     * @param processStatusParameterName parameter supplying processStatus
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void updateProcessStatus(String         userId,
                                    String         externalSourceGUID,
                                    String         externalSourceName,
                                    String         processGUID,
                                    String         processGUIDParameterName,
                                    InstanceStatus processStatus,
                                    String         processStatusParameterName,
                                    String         methodName) throws InvalidParameterException,
                                                                      UserNotAuthorizedException,
                                                                      PropertyServerException
    {
        this.updateBeanStatusInRepository(userId,
                                          externalSourceGUID,
                                          externalSourceName,
                                          processGUID,
                                          processGUIDParameterName,
                                          OpenMetadataAPIMapper.PROCESS_TYPE_GUID,
                                          OpenMetadataAPIMapper.PROCESS_TYPE_NAME,
                                          false,
                                          false,
                                          supportedZones,
                                          processStatus,
                                          processStatusParameterName,
                                          new Date(),
                                          methodName);
    }


    /**
     * Create a parent-child relationship between two processes.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param parentProcessGUID unique identifier of the process in the external process manager that is to be the parent process
     * @param parentProcessGUIDParameterName parameter supplying parentProcessGUID
     * @param childProcessGUID unique identifier of the process in the external process manager that is to be the nested sub-process
     * @param childProcessGUIDParameterName parameter supplying childProcessGUID
     * @param containmentType describes the ownership of the sub-process
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void setupProcessParent(String userId,
                                   String externalSourceGUID,
                                   String externalSourceName,
                                   String parentProcessGUID,
                                   String parentProcessGUIDParameterName,
                                   String childProcessGUID,
                                   String childProcessGUIDParameterName,
                                   int    containmentType,
                                   String methodName) throws InvalidParameterException,
                                                             UserNotAuthorizedException,
                                                             PropertyServerException
    {
        // todo
    }


    /**
     * Remove a parent-child relationship between two processes.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param parentProcessGUID unique identifier of the process in the external process manager that is to be the parent process
     * @param parentProcessGUIDParameterName parameter supplying parentProcessGUID
     * @param childProcessGUID unique identifier of the process in the external process manager that is to be the nested sub-process
     * @param childProcessGUIDParameterName parameter supplying childProcessGUID
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void clearProcessParent(String userId,
                                   String externalSourceGUID,
                                   String externalSourceName,
                                   String parentProcessGUID,
                                   String parentProcessGUIDParameterName,
                                   String childProcessGUID,
                                   String childProcessGUIDParameterName,
                                   String methodName) throws InvalidParameterException,
                                                                   UserNotAuthorizedException,
                                                                   PropertyServerException
    {
        // todo
    }


    /**
     * Update the zones for the process so that it becomes visible to consumers.
     * (The zones are set to the list of zones in the publishedZones option configured for each
     * instance of the Asset Manager OMAS).
     *
     * @param userId calling user
     * @param processGUID unique identifier of the metadata element to publish
     * @param processGUIDParameterName parameter supplying processGUID
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void publishProcess(String userId,
                               String processGUID,
                               String processGUIDParameterName,
                               String methodName) throws InvalidParameterException,
                                                          UserNotAuthorizedException,
                                                          PropertyServerException
    {
        processHandler.publishAsset(userId, processGUID, processGUIDParameterName, methodName);
    }


    /**
     * Update the zones for the process so that it is no longer visible to consumers.
     *
     * @param userId calling user
     * @param processGUID unique identifier of the metadata element to withdraw
     * @param processGUIDParameterName parameter supplying processGUID
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void withdrawProcess(String userId,
                                String processGUID,
                                String processGUIDParameterName,
                                String methodName) throws InvalidParameterException,
                                                           UserNotAuthorizedException,
                                                           PropertyServerException
    {
        processHandler.publishAsset(userId, processGUID, processGUIDParameterName, methodName);
    }


    /**
     * Remove the metadata element representing a process.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param processGUID unique identifier of the metadata element to remove
     * @param processGUIDParameterName unique identifier of the process in the external process manager
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void removeProcess(String userId,
                              String externalSourceGUID,
                              String externalSourceName,
                              String processGUID,
                              String processGUIDParameterName,
                              String methodName) throws InvalidParameterException,
                                                        UserNotAuthorizedException,
                                                        PropertyServerException
    {
        processHandler.deleteBeanInRepository(userId,
                                              externalSourceGUID,
                                              externalSourceName,
                                              processGUID,
                                              processGUIDParameterName,
                                              OpenMetadataAPIMapper.PROCESS_TYPE_GUID,
                                              OpenMetadataAPIMapper.PROCESS_TYPE_NAME,
                                              null,
                                              null,
                                              false,
                                              false,
                                              new Date(),
                                              methodName);
    }


    /**
     * Retrieve the list of process metadata elements that contain the search string.
     * The search string is treated as a regular expression.
     *
     * @param userId calling user
     * @param searchString string to find in the properties
     * @param searchStringParameterName parameter supplying searchString
     * @param startFrom paging start point
     * @param pageSize maximum results that can be returned
     * @param methodName calling method
     *
     * @return list of matching metadata elements
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List findProcesses(String userId,
                                       String searchString,
                                       String searchStringParameterName,
                                       int    startFrom,
                                       int    pageSize,
                                       String methodName) throws InvalidParameterException,
                                                                 UserNotAuthorizedException,
                                                                 PropertyServerException
    {
        invalidParameterHandler.validateUserId(userId, methodName);
        invalidParameterHandler.validateSearchString(searchString, searchStringParameterName, methodName);
        int validatedPageSize = invalidParameterHandler.validatePaging(startFrom, pageSize, methodName);

        List results = processHandler.findAssets(userId,
                                                          searchString,
                                                          searchStringParameterName,
                                                          startFrom,
                                                          validatedPageSize,
                                                          null,
                                                          methodName);

        return results;
    }


    /**
     * Retrieve the list of process metadata elements with a matching qualified or display name.
     * There are no wildcards supported on this request.
     *
     * @param userId calling user
     * @param name name to search for
     * @param nameParameterName parameter supplying name
     * @param startFrom paging start point
     * @param pageSize maximum results that can be returned
     * @param methodName calling method
     *
     * @return list of matching metadata elements
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List   getProcessesByName(String userId,
                                              String name,
                                              String nameParameterName,
                                              int    startFrom,
                                              int    pageSize,
                                              String methodName) throws InvalidParameterException,
                                                                             UserNotAuthorizedException,
                                                                             PropertyServerException
    {
        // todo
        return null;
    }


    /**
     * Retrieve the process metadata element with the supplied unique identifier.
     *
     * @param userId calling user
     * @param processGUID unique identifier of the requested metadata element
     * @param processGUIDParameterName parameter supplying processGUID
     * @param methodName calling method
     *
     * @return requested metadata element
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public PROCESS getProcessByGUID(String userId,
                                    String processGUID,
                                    String processGUIDParameterName,
                                    String methodName) throws InvalidParameterException,
                                                              UserNotAuthorizedException,
                                                              PropertyServerException
    {
        // todo
        return null;
    }


    /**
     * Retrieve the process metadata element with the supplied unique identifier.
     *
     * @param userId calling user
     * @param processGUID unique identifier of the requested metadata element
     * @param processGUIDParameterName parameter supplying processGUID
     * @param methodName calling method
     *
     * @return parent process element
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public PROCESS getProcessParent(String userId,
                                    String processGUID,
                                    String processGUIDParameterName,
                                    String methodName) throws InvalidParameterException,
                                                              UserNotAuthorizedException,
                                                              PropertyServerException
    {
        // todo
        return null;
    }


    /**
     * Retrieve the process metadata element with the supplied unique identifier.
     *
     * @param userId calling user
     * @param processGUID unique identifier of the requested metadata element
     * @param processGUIDParameterName parameter supplying processGUID
     * @param startFrom paging start point
     * @param pageSize maximum results that can be returned
     * @param methodName calling method
     *
     * @return list of process element
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List getSubProcesses(String userId,
                                         String processGUID,
                                         String processGUIDParameterName,
                                         int    startFrom,
                                         int    pageSize,
                                         String methodName) throws InvalidParameterException,
                                                                        UserNotAuthorizedException,
                                                                        PropertyServerException
    {
        // todo
        return null;
    }


    /* ===============================================================================
     * A process typically contains ports that show the flow of data and control to and from it.
     */


    /**
     * Create a new metadata element to represent a port.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param processGUID unique identifier of the process where the port is located
     * @param processGUIDParameterName parameter supplying processGUID
     * @param qualifiedName unique name for the port - used in other configuration
     * @param displayName short display name for the port
     * @param portType description of the port
     * @param additionalProperties additional properties for a port
     * @param suppliedTypeName type name from the caller (enables creation of subtypes)
     * @param extendedProperties  properties for a port subtype
     * @param methodName calling method
     *
     * @return unique identifier of the new metadata element for the port
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public String createPort(String              userId,
                             String              externalSourceGUID,
                             String              externalSourceName,
                             String              processGUID,
                             String              processGUIDParameterName,
                             String              qualifiedName,
                             String              displayName,
                             int                 portType,
                             Map additionalProperties,
                             String              suppliedTypeName,
                             Map extendedProperties,
                             String              methodName) throws InvalidParameterException,
                                                                    UserNotAuthorizedException,
                                                                    PropertyServerException
    {
        return portHandler.createPort(userId,
                                      externalSourceGUID,
                                      externalSourceName,
                                      processGUID,
                                      processGUIDParameterName,
                                      qualifiedName,
                                      displayName,
                                      portType,
                                      additionalProperties,
                                      suppliedTypeName,
                                      extendedProperties,
                                      methodName);
    }


    /**
     * Update the properties of the metadata element representing a port.  This call replaces
     * all existing properties with the supplied properties.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param portGUID unique identifier of the port to update
     * @param portGUIDParameterName parameter supplying portGUID
     * @param qualifiedName unique name for the port - used in other configuration
     * @param displayName short display name for the port
     * @param portType description of the port
     * @param additionalProperties additional properties for a port
     * @param suppliedTypeName type name from the caller (enables creation of subtypes)
     * @param extendedProperties  properties for a port subtype
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void updatePort(String              userId,
                           String              externalSourceGUID,
                           String              externalSourceName,
                           String              portGUID,
                           String              portGUIDParameterName,
                           String              qualifiedName,
                           String              displayName,
                           int                 portType,
                           Map additionalProperties,
                           String              suppliedTypeName,
                           Map extendedProperties,
                           String              methodName) throws InvalidParameterException,
                                                                  UserNotAuthorizedException,
                                                                  PropertyServerException
    {
        portHandler.updatePort(userId,
                               externalSourceGUID,
                               externalSourceName,
                               portGUID,
                               portGUIDParameterName,
                               qualifiedName,
                               displayName,
                               portType,
                               additionalProperties,
                               suppliedTypeName,
                               extendedProperties,
                               methodName);
    }


    /**
     * Link a port to a process.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param processGUID unique identifier of the process
     * @param processGUIDParameterName parameter supplying processGUID
     * @param portGUID unique identifier of the port
     * @param portGUIDParameterName parameter supplying portGUID
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void setupProcessPort(String userId,
                                 String externalSourceGUID,
                                 String externalSourceName,
                                 String processGUID,
                                 String processGUIDParameterName,
                                 String portGUID,
                                 String portGUIDParameterName,
                                 String methodName) throws InvalidParameterException,
                                                           UserNotAuthorizedException,
                                                           PropertyServerException
    {
        portHandler.setupProcessPort(userId,
                                     externalSourceGUID,
                                     externalSourceName,
                                     processGUID,
                                     processGUIDParameterName,
                                     portGUID,
                                     portGUIDParameterName,
                                     methodName);
    }


    /**
     * Unlink a port from a process.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param processGUID unique identifier of the process
     * @param processGUIDParameterName parameter supplying processGUID
     * @param portGUID unique identifier of the port
     * @param portGUIDParameterName parameter supplying portGUID
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void clearProcessPort(String userId,
                                 String externalSourceGUID,
                                 String externalSourceName,
                                 String processGUID,
                                 String processGUIDParameterName,
                                 String portGUID,
                                 String portGUIDParameterName,
                                 String methodName) throws InvalidParameterException,
                                                           UserNotAuthorizedException,
                                                           PropertyServerException
    {
        portHandler.clearProcessPort(userId,
                                     externalSourceGUID,
                                     externalSourceName,
                                     processGUID,
                                     processGUIDParameterName,
                                     portGUID,
                                     portGUIDParameterName,
                                     methodName);
    }


    /**
     * Link two ports together to show that portTwo is an implementation of portOne. (That is, portOne delegates to
     * portTwo.)
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param portOneGUID unique identifier of the port at end 1
     * @param portOneGUIDParameterName parameter supplying portOneGUID
     * @param portTwoGUID unique identifier of the port at end 2
     * @param portTwoGUIDParameterName parameter supplying portTwoGUID
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void setupPortDelegation(String userId,
                                    String externalSourceGUID,
                                    String externalSourceName,
                                    String portOneGUID,
                                    String portOneGUIDParameterName,
                                    String portTwoGUID,
                                    String portTwoGUIDParameterName,
                                    String methodName) throws InvalidParameterException,
                                                              UserNotAuthorizedException,
                                                              PropertyServerException
    {
        portHandler.setupPortDelegation(userId,
                                        externalSourceGUID,
                                        externalSourceName,
                                        portOneGUID,
                                        portOneGUIDParameterName,
                                        portTwoGUID,
                                        portTwoGUIDParameterName,
                                        methodName);
    }


    /**
     * Remove the port delegation relationship between two ports.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param portOneGUID unique identifier of the port at end 1
     * @param portOneGUIDParameterName parameter supplying portOneGUID
     * @param portTwoGUID unique identifier of the port at end 2
     * @param portTwoGUIDParameterName parameter supplying portTwoGUID
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void clearPortDelegation(String userId,
                                    String externalSourceGUID,
                                    String externalSourceName,
                                    String portOneGUID,
                                    String portOneGUIDParameterName,
                                    String portTwoGUID,
                                    String portTwoGUIDParameterName,
                                    String methodName) throws InvalidParameterException,
                                                              UserNotAuthorizedException,
                                                              PropertyServerException
    {
        portHandler.clearPortDelegation(userId,
                                        externalSourceGUID,
                                        externalSourceName,
                                        portOneGUID,
                                        portOneGUIDParameterName,
                                        portTwoGUID,
                                        portTwoGUIDParameterName,
                                        methodName);
    }


    /**
     * Link a schema type to a port to show the structure of data it accepts.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param portGUID unique identifier of the port
     * @param portGUIDParameterName parameter supplying portGUID
     * @param schemaTypeGUID unique identifier of the schemaType
     * @param schemaTypeGUIDParameterName parameter supplying schemaTypeGUID
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void setupPortSchemaType(String userId,
                                    String externalSourceGUID,
                                    String externalSourceName,
                                    String portGUID,
                                    String portGUIDParameterName,
                                    String schemaTypeGUID,
                                    String schemaTypeGUIDParameterName,
                                    String methodName) throws InvalidParameterException,
                                                              UserNotAuthorizedException,
                                                              PropertyServerException
    {
        portHandler.setupPortSchemaType(userId,
                                        externalSourceGUID,
                                        externalSourceName,
                                        portGUID,
                                        portGUIDParameterName,
                                        schemaTypeGUID,
                                        schemaTypeGUIDParameterName,
                                        methodName);
    }


    /**
     * Remove the schema type from a port.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param portGUID unique identifier of the port
     * @param portGUIDParameterName parameter supplying portGUID
     * @param schemaTypeGUID unique identifier of the schemaType
     * @param schemaTypeGUIDParameterName parameter supplying schemaTypeGUID
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void clearPortSchemaType(String userId,
                                    String externalSourceGUID,
                                    String externalSourceName,
                                    String portGUID,
                                    String portGUIDParameterName,
                                    String schemaTypeGUID,
                                    String schemaTypeGUIDParameterName,
                                    String methodName) throws InvalidParameterException,
                                                              UserNotAuthorizedException,
                                                              PropertyServerException
    {
        portHandler.clearPortSchemaType(userId,
                                        externalSourceGUID,
                                        externalSourceName,
                                        portGUID,
                                        portGUIDParameterName,
                                        schemaTypeGUID,
                                        schemaTypeGUIDParameterName,
                                        methodName);
    }


    /**
     * Remove the metadata element representing a port.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param portGUID unique identifier of the metadata element to remove
     * @param portGUIDParameterName parameter supplying portGUID
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void removePort(String userId,
                           String externalSourceGUID,
                           String externalSourceName,
                           String portGUID,
                           String portGUIDParameterName,
                           String methodName) throws InvalidParameterException,
                                                     UserNotAuthorizedException,
                                                     PropertyServerException
    {
        portHandler.removePort(userId, externalSourceGUID, externalSourceName, portGUID, portGUIDParameterName, methodName);
    }


    /**
     * Retrieve the list of port metadata elements that contain the search string.
     * The search string is treated as a regular expression.
     *
     * @param userId calling user
     * @param searchString string to find in the properties
     * @param searchStringParameterName parameter supplying searchString
     * @param startFrom paging start point
     * @param pageSize maximum results that can be returned
     * @param methodName calling method
     *
     * @return list of matching metadata elements
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List findPorts(String userId,
                                String searchString,
                                String searchStringParameterName,
                                int    startFrom,
                                int    pageSize,
                                String methodName) throws InvalidParameterException,
                                                          UserNotAuthorizedException,
                                                          PropertyServerException
    {
        return portHandler.findPorts(userId, searchString, searchStringParameterName, startFrom, pageSize, methodName);
    }


    /**
     * Retrieve the list of ports associated with a process.
     *
     * @param userId calling user
     * @param processGUID unique identifier of the process of interest
     * @param processGUIDParameterName parameter passing processGUID
     * @param startFrom paging start point
     * @param pageSize maximum results that can be returned
     * @param methodName calling method
     *
     * @return list of associated metadata elements
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List getPortsForProcess(String userId,
                                         String processGUID,
                                         String processGUIDParameterName,
                                         int    startFrom,
                                         int    pageSize,
                                         String methodName) throws InvalidParameterException,
                                                                   UserNotAuthorizedException,
                                                                   PropertyServerException
    {
        return portHandler.getPortsForProcess(userId, processGUID, processGUIDParameterName, startFrom, pageSize, methodName);
    }


    /**
     * Retrieve the list of ports that delegate to this port.
     *
     * @param userId calling user
     * @param portGUID unique identifier of the starting port
     * @param portGUIDParameterName parameter passing portGUID
     * @param startFrom paging start point
     * @param pageSize maximum results that can be returned
     * @param methodName calling method
     *
     * @return list of associated metadata elements
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List  getPortUse(String userId,
                                  String portGUID,
                                  String portGUIDParameterName,
                                  int    startFrom,
                                  int    pageSize,
                                  String methodName) throws InvalidParameterException,
                                                            UserNotAuthorizedException,
                                                            PropertyServerException
    {
        return portHandler.getPortUse(userId, portGUID, portGUIDParameterName, startFrom, pageSize, methodName);
    }


    /**
     * Retrieve the port that this port delegates to.
     *
     * @param userId calling user
     * @param portGUID unique identifier of the starting port alias
     * @param portGUIDParameterName parameter passing portGUID
     * @param methodName calling method
     *
     * @return matching metadata element
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public PORT getPortDelegation(String userId,
                                  String portGUID,
                                  String portGUIDParameterName,
                                  String methodName) throws InvalidParameterException,
                                                            UserNotAuthorizedException,
                                                            PropertyServerException
    {
        return portHandler.getPortDelegation(userId, portGUID, portGUIDParameterName, methodName);
    }


    /**
     * Retrieve the list of port metadata elements with a matching qualified or display name.
     * There are no wildcards supported on this request.
     *
     * @param userId calling user
     * @param name name to search for
     * @param nameParameterName parameter supplying name
     * @param startFrom paging start point
     * @param pageSize maximum results that can be returned
     * @param methodName calling method
     *
     * @return list of matching metadata elements
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List getPortsByName(String userId,
                                     String name,
                                     String nameParameterName,
                                     int    startFrom,
                                     int    pageSize,
                                     String methodName) throws InvalidParameterException,
                                                               UserNotAuthorizedException,
                                                               PropertyServerException
    {
        return portHandler.getPortsByName(userId, name, nameParameterName, startFrom, pageSize, methodName);
    }


    /**
     * Retrieve the port metadata element with the supplied unique identifier.
     *
     * @param userId calling user
     * @param portGUID unique identifier of the requested metadata element
     * @param portGUIDParameterName parameter passing portGUID
     * @param methodName calling method
     *
     * @return matching metadata element
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public PORT getPortByGUID(String userId,
                              String portGUID,
                              String portGUIDParameterName,
                              String methodName) throws InvalidParameterException,
                                                        UserNotAuthorizedException,
                                                        PropertyServerException
    {
        return portHandler.getPortByGUID(userId, portGUID, portGUIDParameterName, methodName);
    }


    /* ===============================================================================
     * Process linkage and lineage stitching
     */
    


    /**
     * Link two elements together to show that data flows from one to the other.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param dataSupplierGUID unique identifier of the data supplier
     * @param dataSupplierGUIDParameterName parameter supplying dataSupplierGUID
     * @param dataConsumerGUID unique identifier of the data consumer
     * @param dataConsumerGUIDParameterName parameter supplying dataConsumerGUID
     * @param qualifiedName unique identifier for this relationship
     * @param description description and/or purpose of the data flow
     * @param formula function that determines the subset of the data that flows
     * @param methodName calling method
     *
     * @return unique identifier of the relationship
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public String setupDataFlow(String userId,
                                String externalSourceGUID,
                                String externalSourceName,
                                String dataSupplierGUID,
                                String dataSupplierGUIDParameterName,
                                String dataConsumerGUID,
                                String dataConsumerGUIDParameterName,
                                String qualifiedName,
                                String description,
                                String formula,
                                String methodName) throws InvalidParameterException,
                                                          UserNotAuthorizedException,
                                                          PropertyServerException
    {
        return null;
    }


    /**
     * Retrieve the data flow relationship between two elements.  The qualifiedName is optional unless there
     * is more than one data flow relationships between these two elements since it is used to disambiguate
     * the request.
     *
     * @param userId calling user
     * @param dataSupplierGUID unique identifier of the data supplier
     * @param dataSupplierGUIDParameterName parameter supplying dataSupplierGUID
     * @param dataConsumerGUID unique identifier of the data consumer
     * @param dataConsumerGUIDParameterName parameter supplying dataConsumerGUID
     * @param qualifiedName unique identifier for this relationship
     * @param methodName calling method
     *
     * @return unique identifier and properties of the relationship
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public DATA_FLOW getDataFlow(String userId,
                                 String dataSupplierGUID,
                                 String dataSupplierGUIDParameterName,
                                 String dataConsumerGUID,
                                 String dataConsumerGUIDParameterName,
                                 String qualifiedName,
                                 String methodName) throws InvalidParameterException,
                                                           UserNotAuthorizedException,
                                                           PropertyServerException
    {
        return null;
    }


    /**
     * Update relationship between two elements that shows that data flows from one to the other.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param dataFlowGUID unique identifier of the data flow relationship
     * @param dataFlowGUIDParameterName parameter supplying dataFlowGUID
     * @param qualifiedName unique identifier for this relationship
     * @param description description and/or purpose of the data flow
     * @param formula function that determines the subset of the data that flows
     * @param methodName calling method
     *
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void   updateDataFlow(String userId,
                                 String externalSourceGUID,
                                 String externalSourceName,
                                 String dataFlowGUID,
                                 String dataFlowGUIDParameterName,
                                 String qualifiedName,
                                 String description,
                                 String formula,
                                 String methodName) throws InvalidParameterException,
                                                        UserNotAuthorizedException,
                                                        PropertyServerException
    {

    }


    /**
     * Remove the data flow relationship between two elements.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param dataFlowGUID unique identifier of the data flow relationship
     * @param dataFlowGUIDParameterName parameter supplying dataFlowGUID
     * @param methodName calling method

     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void clearDataFlow(String userId,
                              String externalSourceGUID,
                              String externalSourceName,
                              String dataFlowGUID,
                              String dataFlowGUIDParameterName,
                              String methodName) throws InvalidParameterException,
                                                          UserNotAuthorizedException,
                                                          PropertyServerException
    {

    }


    /**
     * Retrieve the data flow relationships linked from an specific element to the downstream consumers.
     *
     * @param userId calling user
     * @param dataSupplierGUID unique identifier of the data supplier
     * @param dataSupplierGUIDParameterName parameter supplying dataSupplierGUID
     * @param methodName calling method
     *
     * @return unique identifier and properties of the relationship
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List getDataFlowConsumers(String userId,
                                                String dataSupplierGUID,
                                                String dataSupplierGUIDParameterName,
                                                String methodName) throws InvalidParameterException,
                                                                          UserNotAuthorizedException,
                                                                          PropertyServerException
    {
        return null;
    }


    /**
     * Retrieve the data flow relationships linked from an specific element to the upstream suppliers.
     *
     * @param userId calling user
     * @param dataConsumerGUID unique identifier of the data consumer
     * @param dataConsumerGUIDParameterName parameter supplying dataConsumerGUID
     * @param methodName calling method
     *
     * @return unique identifier and properties of the relationship
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List getDataFlowSuppliers(String userId,
                                                String dataConsumerGUID,
                                                String dataConsumerGUIDParameterName,
                                                String methodName) throws InvalidParameterException,
                                                                          UserNotAuthorizedException,
                                                                          PropertyServerException
    {
        return null;
    }


    /**
     * Link two elements to show that when one completes the next is started.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param currentStepGUID unique identifier of the previous step
     * @param currentStepGUIDParameterName parameter supplying currentStepGUID
     * @param nextStepGUID unique identifier of the next step
     * @param nextStepGUIDParameterName parameter supplying nextStepGUID
     * @param qualifiedName unique identifier for this relationship
     * @param description description and/or purpose of the data flow
     * @param guard function that must be true to travel down this control flow
     * @param methodName calling method
     *
     * @return unique identifier for the control flow relationship
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public String setupControlFlow(String userId,
                                   String externalSourceGUID,
                                   String externalSourceName,
                                   String currentStepGUID,
                                   String currentStepGUIDParameterName,
                                   String nextStepGUID,
                                   String nextStepGUIDParameterName,
                                   String qualifiedName,
                                   String description,
                                   String guard,
                                   String methodName) throws InvalidParameterException,
                                                         UserNotAuthorizedException,
                                                         PropertyServerException
    {
        return null;
    }


    /**
     * Retrieve the control flow relationship between two elements.  The qualifiedName is optional unless there
     * is more than one control flow relationships between these two elements since it is used to disambiguate
     * the request.
     *
     * @param userId calling user
     * @param currentStepGUID unique identifier of the previous step
     * @param currentStepGUIDParameterName parameter supplying currentStepGUID
     * @param nextStepGUID unique identifier of the next step
     * @param nextStepGUIDParameterName parameter supplying nextStepGUID
     * @param qualifiedName unique identifier for this relationship
     * @param methodName calling method
     *
     * @return unique identifier and properties of the relationship
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public CONTROL_FLOW getControlFlow(String userId,
                                       String currentStepGUID,
                                       String currentStepGUIDParameterName,
                                       String nextStepGUID,
                                       String nextStepGUIDParameterName,
                                       String qualifiedName,
                                       String methodName) throws InvalidParameterException,
                                                                          UserNotAuthorizedException,
                                                                          PropertyServerException
    {
        return null;
    }


    /**
     * Update the relationship between two elements that shows that when one completes the next is started.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param controlFlowGUID unique identifier of the  control flow relationship
     * @param controlFlowGUIDParameterName parameter supplying controlFlowGUID
     * @param qualifiedName unique identifier for this relationship
     * @param description description and/or purpose of the data flow
     * @param guard function that must be true to travel down this control flow
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void updateControlFlow(String userId,
                                  String externalSourceGUID,
                                  String externalSourceName,
                                  String controlFlowGUID,
                                  String controlFlowGUIDParameterName,
                                  String qualifiedName,
                                  String description,
                                  String guard,
                                  String methodName) throws InvalidParameterException,
                                                            UserNotAuthorizedException,
                                                            PropertyServerException
    {

    }


    /**
     * Remove the control flow relationship between two elements.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param controlFlowGUID unique identifier of the  control flow relationship
     * @param controlFlowGUIDParameterName parameter supplying controlFlowGUID
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void clearControlFlow(String userId,
                                 String externalSourceGUID,
                                 String externalSourceName,
                                 String controlFlowGUID,
                                 String controlFlowGUIDParameterName,
                                 String methodName) throws InvalidParameterException,
                                                           UserNotAuthorizedException,
                                                           PropertyServerException
    {
    }


    /**
     * Retrieve the control relationships linked from an specific element to the possible next elements in the process.
     *
     * @param userId calling user
     * @param currentStepGUID unique identifier of the current step
     * @param currentStepGUIDParameterName parameter supplying currentStepGUID
     * @param methodName calling method
     *
     * @return unique identifier and properties of the relationship
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List getControlFlowNextSteps(String userId,
                                                      String currentStepGUID,
                                                      String currentStepGUIDParameterName,
                                                      String methodName) throws InvalidParameterException,
                                                                                UserNotAuthorizedException,
                                                                                PropertyServerException
    {
        return null;
    }


    /**
     * Retrieve the control relationships linked from an specific element to the possible previous elements in the process.
     *
     * @param userId calling user
     * @param currentStepGUID unique identifier of the current step
     * @param currentStepGUIDParameterName parameter supplying currentStepGUID
     * @param methodName calling method
     *
     * @return unique identifier and properties of the relationship
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List getControlFlowPreviousSteps(String userId,
                                                          String currentStepGUID,
                                                          String currentStepGUIDParameterName,
                                                          String methodName) throws InvalidParameterException,
                                                                                    UserNotAuthorizedException,
                                                                                    PropertyServerException
    {
        return null;
    }


    /**
     * Link two elements together to show a request-response call between them.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param callerGUID unique identifier of the element that is making the call
     * @param callerGUIDParameterName parameter supplying callerGUID
     * @param calledGUID unique identifier of the element that is processing the call
     * @param calledGUIDParameterName parameter supplying calledGUID
     * @param qualifiedName unique identifier for this relationship
     * @param description description and/or purpose of the data flow
     * @param formula function that determines the subset of the data that flows
     * @param methodName calling method
     *
     * @return unique identifier of the new relationship
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public String setupProcessCall(String userId,
                                   String externalSourceGUID,
                                   String externalSourceName,
                                   String callerGUID,
                                   String callerGUIDParameterName,
                                   String calledGUID,
                                   String calledGUIDParameterName,
                                   String qualifiedName,
                                   String description,
                                   String formula,
                                   String methodName) throws InvalidParameterException,
                                                             UserNotAuthorizedException,
                                                             PropertyServerException
    {
        return null;
    }


    /**
     * Retrieve the process call relationship between two elements.  The qualifiedName is optional unless there
     * is more than one process call relationships between these two elements since it is used to disambiguate
     * the request.  This is often used in conjunction with update.
     *
     * @param userId calling user
     * @param callerGUID unique identifier of the element that is making the call
     * @param callerGUIDParameterName parameter supplying callerGUID
     * @param calledGUID unique identifier of the element that is processing the call
     * @param calledGUIDParameterName parameter supplying calledGUID
     * @param qualifiedName unique identifier for this relationship
     * @param methodName calling method
     *
     * @return unique identifier and properties of the relationship
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public PROCESS_CALL getProcessCall(String userId,
                                       String callerGUID,
                                       String callerGUIDParameterName,
                                       String calledGUID,
                                       String calledGUIDParameterName,
                                       String qualifiedName,
                                       String methodName) throws InvalidParameterException,
                                                                 UserNotAuthorizedException,
                                                                 PropertyServerException
    {
        return null;
    }


    /**
     * Update the relationship between two elements that shows a request-response call between them.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param processCallGUID unique identifier of the process call relationship
     * @param processCallGUIDParameterName parameter supplying processCallGUID
     * @param qualifiedName unique identifier for this relationship
     * @param description description and/or purpose of the data flow
     * @param formula function that determines the subset of the data that flows
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void updateProcessCall(String userId,
                                  String externalSourceGUID,
                                  String externalSourceName,
                                  String processCallGUID,
                                  String processCallGUIDParameterName,
                                  String qualifiedName,
                                  String description,
                                  String formula,
                                  String methodName) throws InvalidParameterException,
                                                            UserNotAuthorizedException,
                                                            PropertyServerException
    {
    }


    /**
     * Remove the process call relationship.
     *
     * @param userId calling user
     * @param externalSourceGUID unique identifier of software server capability representing the caller
     * @param externalSourceName unique name of software server capability representing the caller
     * @param processCallGUID unique identifier of the process call relationship
     * @param processCallGUIDParameterName parameter supplying processCallGUID
     * @param methodName calling method

     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void clearProcessCall(String userId,
                                 String externalSourceGUID,
                                 String externalSourceName,
                                 String processCallGUID,
                                 String processCallGUIDParameterName,
                                 String methodName) throws InvalidParameterException,
                                                           UserNotAuthorizedException,
                                                           PropertyServerException
    {
    }


    /**
     * Retrieve the process call relationships linked from an specific element to the elements it calls.
     *
     * @param userId calling user
     * @param callerGUID unique identifier of the element that is making the call
     * @param callerGUIDParameterName parameter supplying callerGUID
     * @param methodName calling method
     *
     * @return unique identifier and properties of the relationship
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List getProcessCalled(String userId,
                                               String callerGUID,
                                               String callerGUIDParameterName,
                                               String methodName) throws InvalidParameterException,
                                                                         UserNotAuthorizedException,
                                                                         PropertyServerException
    {
        return null;
    }


    /**
     * Retrieve the process call relationships linked from an specific element to its callers.
     *
     * @param userId calling user
     * @param calledGUID unique identifier of the element that is processing the call
     * @param calledGUIDParameterName parameter supplying calledGUID
     * @param methodName calling method
     *
     * @return unique identifier and properties of the relationship
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List getProcessCallers(String userId,
                                                String calledGUID,
                                                String calledGUIDParameterName,
                                                String methodName) throws InvalidParameterException,
                                                                          UserNotAuthorizedException,
                                                                          PropertyServerException
    {
        return null;
    }


    /**
     * Link to elements together to show that they are part of the lineage of the data that is moving
     * between the processes.  Typically the lineage relationships stitch together processes and data assets
     * supported by different technologies.
     *
     * @param userId calling user
     * @param sourceElementGUID unique identifier of the source
     * @param sourceElementGUIDParameterName parameter supplying sourceElementGUID
     * @param destinationElementGUID unique identifier of the destination
     * @param destinationElementGUIDParameterName parameter supplying destinationElementGUID
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void setupLineageMapping(String userId,
                                    String sourceElementGUID,
                                    String sourceElementGUIDParameterName,
                                    String destinationElementGUID,
                                    String destinationElementGUIDParameterName,
                                    String methodName) throws InvalidParameterException,
                                                              UserNotAuthorizedException,
                                                              PropertyServerException
    {
    }


    /**
     * Remove the lineage mapping between two elements.
     *
     * @param userId calling user
     * @param sourceElementGUID unique identifier of the source
     * @param sourceElementGUIDParameterName parameter supplying sourceElementGUID
     * @param destinationElementGUID unique identifier of the destination
     * @param destinationElementGUIDParameterName parameter supplying destinationElementGUID
     * @param methodName calling method
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public void clearLineageMapping(String userId,
                                    String sourceElementGUID,
                                    String sourceElementGUIDParameterName,
                                    String destinationElementGUID,
                                    String destinationElementGUIDParameterName,
                                    String methodName) throws InvalidParameterException,
                                                              UserNotAuthorizedException,
                                                              PropertyServerException
    {
    }


    /**
     * Retrieve the lineage mapping relationships linked from an specific source element to its destinations.
     *
     * @param userId calling user
     * @param sourceElementGUID unique identifier of the source
     * @param sourceElementGUIDParameterName parameter supplying sourceElementGUID
     * @param methodName calling method
     *
     * @return list of lineage mapping relationships
     *
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List getDestinationLineageMappings(String userId,
                                                               String sourceElementGUID,
                                                               String sourceElementGUIDParameterName,
                                                               String methodName) throws InvalidParameterException,
                                                                                         UserNotAuthorizedException,
                                                                                         PropertyServerException
    {
        return null;
    }


    /**
     * Retrieve the lineage mapping relationships linked from an specific destination element to its sources.
     *
     * @param userId calling user
     * @param destinationElementGUID unique identifier of the destination
     * @param destinationElementGUIDParameterName parameter supplying destinationElementGUID
     * @param methodName calling method
     *
     * @return list of lineage mapping relationships
     * 
     * @throws InvalidParameterException  one of the parameters is invalid
     * @throws UserNotAuthorizedException the user is not authorized to issue this request
     * @throws PropertyServerException    there is a problem reported in the open metadata server(s)
     */
    public List getSourceLineageMappings(String userId,
                                                          String destinationElementGUID,
                                                          String destinationElementGUIDParameterName,
                                                          String methodName) throws InvalidParameterException,
                                                                                    UserNotAuthorizedException,
                                                                                    PropertyServerException
    {
        return null;
    }

}




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