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/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.camunda.bpm.engine;

import java.sql.Connection;
import java.util.Date;
import java.util.Map;
import java.util.Set;

import org.camunda.bpm.application.ProcessApplicationReference;
import org.camunda.bpm.application.ProcessApplicationRegistration;
import org.camunda.bpm.engine.impl.jobexecutor.JobExecutor;
import org.camunda.bpm.engine.management.ActivityStatisticsQuery;
import org.camunda.bpm.engine.management.DeploymentStatisticsQuery;
import org.camunda.bpm.engine.management.JobDefinition;
import org.camunda.bpm.engine.management.JobDefinitionQuery;
import org.camunda.bpm.engine.management.ProcessDefinitionStatisticsQuery;
import org.camunda.bpm.engine.management.TableMetaData;
import org.camunda.bpm.engine.management.TablePage;
import org.camunda.bpm.engine.management.TablePageQuery;
import org.camunda.bpm.engine.runtime.Incident;
import org.camunda.bpm.engine.runtime.Job;
import org.camunda.bpm.engine.runtime.JobQuery;



/**
 * Service for admin and maintenance operations on the process engine.
 *
 * These operations will typically not be used in a workflow driven application,
 * but are used in for example the operational console.
 *
 * @author Tom Baeyens
 * @author Joram Barrez
 * @author Falko Menge
 * @author Thorben Lindhauer
 */
public interface ManagementService {

  /**
   * Activate a deployment for a given ProcessApplication. The effect of this
   * method is twofold:
   * 
    *
  1. The process engine will execute atomic operations within the context of * that ProcessApplication
  2. *
  3. The job executor will start acquiring jobs from that deployment
  4. *
* * @param deploymentId * the Id of the deployment to activate * @param reference * the reference to the process application * @return a new {@link ProcessApplicationRegistration} */ ProcessApplicationRegistration registerProcessApplication(String deploymentId, ProcessApplicationReference reference); /** * Deactivate a deployment for a given ProcessApplication. This removes the association * between the process engine and the process application and optionally removes the associated * process definitions from the cache. * * @param deploymentId * the Id of the deployment to deactivate * @param removeProcessDefinitionsFromCache * indicates whether the process definitions should be removed from the deployment cache * @return true if the registration was cleared */ void unregisterProcessApplication(String deploymentId, boolean removeProcessDefinitionsFromCache); /** * Deactivate a deployment for a given ProcessApplication. This removes the association * between the process engine and the process application and optionally removes the associated * process definitions from the cache. * * @param deploymentIds * the Ids of the deployments to deactivate * @param removeProcessDefinitionsFromCache * indicates whether the process definitions should be removed from the deployment cache * @return true if the registration was cleared */ void unregisterProcessApplication(Set deploymentIds, boolean removeProcessDefinitionsFromCache); /** * @return the name of the process application that is currently registered for * the given deployment or 'null' if no process application is * currently registered. */ String getProcessApplicationForDeployment(String deploymentId); /** * Get the mapping containing {table name, row count} entries of the * Activiti database schema. */ Map getTableCount(); /** * Gets the table name (including any configured prefix) for an Activiti entity like Task, Execution or the like. */ String getTableName(Class activitiEntityClass); /** * Gets the metadata (column names, column types, etc.) of a certain table. * Returns null when no table exists with the given name. */ TableMetaData getTableMetaData(String tableName); /** * Creates a {@link TablePageQuery} that can be used to fetch {@link TablePage} * containing specific sections of table row data. */ TablePageQuery createTablePageQuery(); /** * Returns a new JobQuery implementation, that can be used * to dynamically query the jobs. */ JobQuery createJobQuery(); /** * Returns a new {@link JobDefinitionQuery} implementation, that can be used * to dynamically query the job definitions. */ JobDefinitionQuery createJobDefinitionQuery(); /** * Forced synchronous execution of a job (eg. for administration or testing) * The job will be executed, even if the process definition and/or the process instance * is in suspended state. * * @param jobId id of the job to execute, cannot be null. * @throws ProcessEngineException when there is no job with the given id. */ void executeJob(String jobId); /** * Delete the job with the provided id. * @param jobId id of the job to execute, cannot be null. * @throws ProcessEngineException when there is no job with the given id. */ void deleteJob(String jobId); /** *

Activates the {@link JobDefinition} with the given id immediately.

* *

* Note: All {@link Job}s of the provided job definition * will be not activated. *

* * @throws ProcessEngineException if the job definition id is equal null. * * @see #activateJobById(String) * @see #activateJobByJobDefinitionId(String) */ void activateJobDefinitionById(String jobDefinitionId); /** *

Activates all {@link JobDefinition}s of the provided process definition id immediately.

* *

* Note: All {@link Job}s of the provided job definition * will be not activated. *

* * @throws ProcessEngineException if the process definition id is equal null. * * @see #activateJobByProcessDefinitionId(String) */ void activateJobDefinitionByProcessDefinitionId(String processDefinitionId); /** *

Activates all {@link JobDefinition}s of the provided process definition key immediately.

* *

* Note: All {@link Job}s of the provided job definition * will be not activated. *

* * @throws ProcessEngineException if the process definition key is equal null. * * @see #activateJobByProcessDefinitionKey(String) */ void activateJobDefinitionByProcessDefinitionKey(String processDefinitionKey); /** *

Activates the {@link JobDefinition} with the given id immediately.

* * @param activateJobs If true, all the {@link Job}s of the provided job definition * will be activated too. * * @throws ProcessEngineException if the job definition id is equal null. * * @see #activateJobById(String) * @see #activateJobByJobDefinitionId(String) */ void activateJobDefinitionById(String jobDefinitionId, boolean activateJobs); /** *

Activates all {@link JobDefinition}s of the provided process definition id immediately.

* * @param activateJobs If true, all the {@link Job}s of the provided job definition * will be activated too. * * @throws ProcessEngineException if the process definition id is equal null. * * @see #activateJobByProcessDefinitionId(String) */ void activateJobDefinitionByProcessDefinitionId(String processDefinitionId, boolean activateJobs); /** *

Activates all {@link JobDefinition}s of the provided process definition key immediately.

* * @param activateJobs If true, all the {@link Job}s of the provided job definition * will be activated too. * * @throws ProcessEngineException if the process definition key is equal null. * * @see #activateJobByProcessDefinitionKey(String) */ void activateJobDefinitionByProcessDefinitionKey(String processDefinitionKey, boolean activateJobs); /** * Activates the {@link JobDefinition} with the given id. * * @param activateJobs If true, all the {@link Job}s of the provided job definition * will be activated too. * * @param activationDate The date on which the job definition will be activated. If null, the * job definition is activated immediately. * Note: The {@link JobExecutor} needs to be active to use this! * * @throws ProcessEngineException if the job definition id is equal null. * * @see #activateJobById(String) * @see #activateJobByJobDefinitionId(String) */ void activateJobDefinitionById(String jobDefinitionId, boolean activateJobs, Date activationDate); /** *

Activates all {@link JobDefinition}s of the provided process definition id.

* * @param activateJobs If true, all the {@link Job}s of the provided job definition * will be activated too. * * @param activationDate The date on which the job definition will be activated. If null, the * job definition is activated immediately. * Note: The {@link JobExecutor} needs to be active to use this! * * @throws ProcessEngineException if the process definition id is equal null. * * @see #activateJobByProcessDefinitionId(String) */ void activateJobDefinitionByProcessDefinitionId(String processDefinitionId, boolean activateJobs, Date activationDate); /** *

Activates all {@link JobDefinition}s of the provided process definition key.

* * @param activateJobs If true, all the {@link Job}s of the provided job definition * will be activated too. * * @param activationDate The date on which the job definition will be activated. If null, the * job definition is activated immediately. * Note: The {@link JobExecutor} needs to be active to use this! * * @throws ProcessEngineException if the process definition key is equal null. * * @see #activateJobByProcessDefinitionKey(String) */ void activateJobDefinitionByProcessDefinitionKey(String processDefinitionKey, boolean activateJobs, Date activationDate); /** *

Suspends the {@link JobDefinition} with the given id immediately.

* *

* Note: All {@link Job}s of the provided job definition * will be not suspended. *

* * @throws ProcessEngineException if no such job definition can be found. * * @see #suspendJobById(String) * @see #suspendJobByJobDefinitionId(String) */ void suspendJobDefinitionById(String jobDefinitionId); /** *

Suspends all {@link JobDefinition} of the provided process definition id immediately.

* *

* Note: All {@link Job}s of the provided job definition * will be not suspended. *

* * @throws ProcessEngineException if the process definition id is equal null. * * @see #suspendJobByProcessDefinitionId(String) */ void suspendJobDefinitionByProcessDefinitionId(String processDefinitionId); /** *

Suspends all {@link JobDefinition} of the provided process definition key immediately.

* *

* Note: All {@link Job}s of the provided job definition * will be not suspended. *

* * @throws ProcessEngineException if the process definition key is equal null. * * @see #suspendJobByProcessDefinitionKey(String) */ void suspendJobDefinitionByProcessDefinitionKey(String processDefinitionKey); /** * Suspends the {@link JobDefinition} with the given id immediately. * * @param suspendJobs If true, all the {@link Job}s of the provided job definition * will be suspended too. * * @throws ProcessEngineException if the job definition id is equal null. * * @see #suspendJobById(String) * @see #suspendJobByJobDefinitionId(String) */ void suspendJobDefinitionById(String jobDefinitionId, boolean suspendJobs); /** * Suspends all {@link JobDefinition}s of the provided process definition id immediately. * * @param suspendJobs If true, all the {@link Job}s of the provided job definition * will be suspended too. * * @throws ProcessEngineException if the process definition id is equal null. * * @see #suspendJobByProcessDefinitionId(String) */ void suspendJobDefinitionByProcessDefinitionId(String processDefinitionId, boolean suspendJobs); /** * Suspends all {@link JobDefinition}s of the provided process definition key immediately. * * @param suspendJobs If true, all the {@link Job}s of the provided job definition * will be suspended too. * * @throws ProcessEngineException if the process definition key is equal null. * * @see #suspendJobByProcessDefinitionKey(String) */ void suspendJobDefinitionByProcessDefinitionKey(String processDefinitionKey, boolean suspendJobs); /** * Suspends the {@link JobDefinition} with the given id. * * @param suspendJobs If true, all the {@link Job}s of the provided job definition * will be suspended too. * * @param suspensionDate The date on which the job definition will be suspended. If null, the * job definition is suspended immediately. * Note: The {@link JobExecutor} needs to be active to use this! * * @throws ProcessEngineException if the job definition id is equal null. * * @see #suspendJobById(String) * @see #suspendJobByJobDefinitionId(String) */ void suspendJobDefinitionById(String jobDefinitionId, boolean suspendJobs, Date suspensionDate); /** * Suspends all {@link JobDefinition}s of the provided process definition id. * * @param suspendJobs If true, all the {@link Job}s of the provided job definition * will be suspended too. * * @param suspensionDate The date on which the job definition will be suspended. If null, the * job definition is suspended immediately. * Note: The {@link JobExecutor} needs to be active to use this! * * @throws ProcessEngineException if the process definition id is equal null. * * @see #suspendJobByProcessDefinitionId(String) */ void suspendJobDefinitionByProcessDefinitionId(String processDefinitionId, boolean suspendJobs, Date suspensionDate); /** * Suspends all {@link JobDefinition}s of the provided process definition key. * * @param suspendJobs If true, all the {@link Job}s of the provided job definition * will be suspended too. * * @param suspensionDate The date on which the job definition will be suspended. If null, the * job definition is suspended immediately. * Note: The {@link JobExecutor} needs to be active to use this! * * @throws ProcessEngineException if the process definition key is equal null. * * @see #suspendJobByProcessDefinitionKey(String) */ void suspendJobDefinitionByProcessDefinitionKey(String processDefinitionKey, boolean suspendJobs, Date suspensionDate); /** *

Activates the {@link Job} with the given id.

* * @throws ProcessEngineException if the job id is equal null. */ void activateJobById(String jobId); /** *

Activates all {@link Job}s of the provided job definition id.

* * @throws ProcessEngineException if the job definition id is equal null. */ void activateJobByJobDefinitionId(String jobDefinitionId); /** *

Activates all {@link Job}s of the provided process instance id.

* * @throws ProcessEngineException if the process instance id is equal null. */ void activateJobByProcessInstanceId(String processInstanceId); /** *

Activates all {@link Job}s of the provided process definition id.

* * @throws ProcessEngineException if the process definition id is equal null. */ void activateJobByProcessDefinitionId(String processDefinitionId); /** *

Activates {@link Job}s of the provided process definition key.

* * @throws ProcessEngineException if the process definition key is equal null. */ void activateJobByProcessDefinitionKey(String processDefinitionKey); /** *

Suspends the {@link Job} with the given id.

* * @throws ProcessEngineException if the job id is equal null. */ void suspendJobById(String jobId); /** *

Suspends all {@link Job}s of the provided job definition id.

* * @throws ProcessEngineException if the job definition id is equal null. */ void suspendJobByJobDefinitionId(String jobDefinitionId); /** *

Suspends all {@link Job}s of the provided process instance id.

* * @throws ProcessEngineException if the process instance id is equal null. */ void suspendJobByProcessInstanceId(String processInstanceId); /** *

Suspends all {@link Job}s of the provided process definition id.

* * @throws ProcessEngineException if the process definition id is equal null. */ void suspendJobByProcessDefinitionId(String processDefinitionId); /** *

Activates {@link Job}s of the provided process definition key.

* * @throws ProcessEngineException if the process definition key is equal null. */ void suspendJobByProcessDefinitionKey(String processDefinitionKey); /** * Sets the number of retries that a job has left. * * Whenever the JobExecutor fails to execute a job, this value is decremented. * When it hits zero, the job is supposed to be dead and not retried again. * In that case, this method can be used to increase the number of retries. * @param jobId id of the job to modify, cannot be null. * @param retries number of retries. */ void setJobRetries(String jobId, int retries); /** *

* Set the number of retries of all failed {@link Job jobs} * of the provided job definition id. *

* *

* Whenever the JobExecutor fails to execute a job, this value is decremented. * When it hits zero, the job is supposed to be failed and * not retried again. In that case, this method can be used to increase the * number of retries. *

* *

* {@link Incident Incidents} of the involved failed {@link Job jobs} will not * be resolved using this method! When the execution of a job was successful * the corresponding incident will be resolved. *

* * @param jobdefinitionId id of the job definition, cannot be null. * @param retries number of retries. */ void setJobRetriesByJobDefinitionId(String jobDefinitionId, int retries); /** * Sets a new due date for the provided id. * When newDuedate is null, the job is executed with the next * job executor run. * @param jobId id of job to modify, cannot be null. * @param newDuedate new date for job execution */ void setJobDuedate(String jobId, Date newDuedate); /** * Returns the full stacktrace of the exception that occurs when the job * with the given id was last executed. Returns null when the job has no * exception stacktrace. * @param jobId id of the job, cannot be null. * @throws ProcessEngineException when no job exists with the given id. */ String getJobExceptionStacktrace(String jobId); /** get the list of properties. */ Map getProperties(); /** Set the value for a property. * * @param name the name of the property. * @param value the new value for the property. */ void setProperty(String name, String value); /** programmatic schema update on a given connection returning feedback about what happened */ String databaseSchemaUpgrade(Connection connection, String catalog, String schema); /** * Query for the number of process instances aggregated by process definitions. */ ProcessDefinitionStatisticsQuery createProcessDefinitionStatisticsQuery(); /** * Query for the number of process instances aggregated by deployments. */ DeploymentStatisticsQuery createDeploymentStatisticsQuery(); /** * Query for the number of activity instances aggregated by activities of a single process definition. */ ActivityStatisticsQuery createActivityStatisticsQuery(String processDefinitionId); /** * Get the deployments that are registered the engine's job executor. * This set is only relevant, if the engine configuration property jobExecutorDeploymentAware is set. */ Set getRegisteredDeployments(); /** * Register a deployment for the engine's job executor. * This is required, if the engine configuration property jobExecutorDeploymentAware is set. * If set to false, the job executor will execute any job. */ void registerDeploymentForJobExecutor(String deploymentId); /** * Unregister a deployment for the engine's job executor. * If the engine configuration property jobExecutorDeploymentAware is set, * jobs for the given deployment will no longer get acquired. */ void unregisterDeploymentForJobExecutor(String deploymentId); }




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