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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.activiti.engine.impl.persistence.entity;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.activiti.bpmn.model.ActivitiListener;
import org.activiti.bpmn.model.FlowElement;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.ProcessEngineConfiguration;
import org.activiti.engine.delegate.event.ActivitiEventType;
import org.activiti.engine.delegate.event.impl.ActivitiEventBuilder;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.CountingExecutionEntity;
import org.activiti.engine.impl.util.ProcessDefinitionUtil;
public class ExecutionEntityImpl extends VariableScopeImpl implements ExecutionEntity, CountingExecutionEntity {
private static final long serialVersionUID = 1L;
// current position /////////////////////////////////////////////////////////
protected FlowElement currentFlowElement;
protected ActivitiListener currentActivitiListener; // Only set when executing an execution listener
/**
* the process instance. this is the root of the execution tree. the processInstance of a process instance is a self reference.
*/
protected ExecutionEntityImpl processInstance;
/** the parent execution */
protected ExecutionEntityImpl parent;
/** nested executions representing scopes or concurrent paths */
protected List executions;
/** super execution, not-null if this execution is part of a subprocess */
protected ExecutionEntityImpl superExecution;
/** reference to a subprocessinstance, not-null if currently subprocess is started from this execution */
protected ExecutionEntityImpl subProcessInstance;
/** The tenant identifier (if any) */
protected String tenantId = ProcessEngineConfiguration.NO_TENANT_ID;
protected String name;
protected String description;
protected String localizedName;
protected String localizedDescription;
protected Date lockTime;
// state/type of execution //////////////////////////////////////////////////
protected boolean isActive = true;
protected boolean isScope = true;
protected boolean isConcurrent;
protected boolean isEnded;
protected boolean isEventScope;
protected boolean isMultiInstanceRoot;
protected boolean isCountEnabled;
// events ///////////////////////////////////////////////////////////////////
// TODO: still needed in v6?
protected String eventName;
// associated entities /////////////////////////////////////////////////////
// (we cache associated entities here to minimize db queries)
protected List eventSubscriptions;
protected List jobs;
protected List timerJobs;
protected List tasks;
protected List identityLinks;
// cascade deletion ////////////////////////////////////////////////////////
protected String deleteReason;
protected int suspensionState = SuspensionState.ACTIVE.getStateCode();
protected String startUserId;
protected Date startTime;
// CountingExecutionEntity
protected int eventSubscriptionCount;
protected int taskCount;
protected int jobCount;
protected int timerJobCount;
protected int suspendedJobCount;
protected int deadLetterJobCount;
protected int variableCount;
protected int identityLinkCount;
/**
* persisted reference to the processDefinition.
*
* @see #processDefinition
* @see #setProcessDefinition(ProcessDefinitionImpl)
* @see #getProcessDefinition()
*/
protected String processDefinitionId;
/**
* persisted reference to the process definition key.
*/
protected String processDefinitionKey;
/**
* persisted reference to the process definition name.
*/
protected String processDefinitionName;
/**
* persisted reference to the process definition version.
*/
protected Integer processDefinitionVersion;
/**
* persisted reference to the deployment id.
*/
protected String deploymentId;
/**
* persisted reference to the current position in the diagram within the {@link #processDefinition}.
*
* @see #activity
* @see #setActivity(ActivityImpl)
* @see #getActivity()
*/
protected String activityId;
/**
* The name of the current activity position
*/
protected String activityName;
/**
* persisted reference to the process instance.
*
* @see #getProcessInstance()
*/
protected String processInstanceId;
/**
* persisted reference to the business key.
*/
protected String businessKey;
/**
* persisted reference to the parent of this execution.
*
* @see #getParent()
* @see #setParentId(String)
*/
protected String parentId;
/**
* persisted reference to the super execution of this execution
*
* @See {@link #getSuperExecution()}
* @see #setSuperExecution(ExecutionEntityImpl)
*/
protected String superExecutionId;
protected String rootProcessInstanceId;
protected ExecutionEntityImpl rootProcessInstance;
protected boolean forcedUpdate;
protected List queryVariables;
protected boolean isDeleted; // TODO: should be in entity superclass probably
protected String parentProcessInstanceId;
private Integer appVersion;
public ExecutionEntityImpl() {
}
/**
* Static factory method: to be used when a new execution is created for the very first time/
* Calling this will make sure no extra db fetches are needed later on, as all collections
* will be populated with empty collections. If they would be null, it would trigger
* a database fetch for those relationship entities.
*/
public static ExecutionEntityImpl createWithEmptyRelationshipCollections() {
ExecutionEntityImpl execution = new ExecutionEntityImpl();
execution.executions = new ArrayList(1);
execution.tasks = new ArrayList(1);
execution.variableInstances = new HashMap(1);
execution.jobs = new ArrayList(1);
execution.timerJobs = new ArrayList(1);
execution.eventSubscriptions = new ArrayList(1);
execution.identityLinks = new ArrayList(1);
return execution;
}
//persistent state /////////////////////////////////////////////////////////
public Object getPersistentState() {
Map persistentState = new HashMap();
persistentState.put("processDefinitionId", this.processDefinitionId);
persistentState.put("businessKey", this.businessKey);
persistentState.put("activityId", this.activityId);
persistentState.put("isActive", this.isActive);
persistentState.put("isConcurrent", this.isConcurrent);
persistentState.put("isScope", this.isScope);
persistentState.put("isEventScope", this.isEventScope);
persistentState.put("parentId", parentId);
persistentState.put("name", name);
persistentState.put("lockTime", lockTime);
persistentState.put("superExecution", this.superExecutionId);
persistentState.put("rootProcessInstanceId", this.rootProcessInstanceId);
if (forcedUpdate) {
persistentState.put("forcedUpdate", Boolean.TRUE);
}
persistentState.put("suspensionState", this.suspensionState);
persistentState.put("startTime", this.startTime);
persistentState.put("startUserId", this.startUserId);
persistentState.put("eventSubscriptionCount", eventSubscriptionCount);
persistentState.put("taskCount", taskCount);
persistentState.put("jobCount", jobCount);
persistentState.put("timerJobCount", timerJobCount);
persistentState.put("suspendedJobCount", suspendedJobCount);
persistentState.put("deadLetterJobCount", deadLetterJobCount);
persistentState.put("variableCount", variableCount);
persistentState.put("identityLinkCount", identityLinkCount);
return persistentState;
}
// The current flow element, will be filled during operation execution
public FlowElement getCurrentFlowElement() {
if (currentFlowElement == null) {
String processDefinitionId = getProcessDefinitionId();
if (processDefinitionId != null) {
org.activiti.bpmn.model.Process process = ProcessDefinitionUtil.getProcess(processDefinitionId);
currentFlowElement = process.getFlowElement(getCurrentActivityId(), true);
}
}
return currentFlowElement;
}
public void setCurrentFlowElement(FlowElement currentFlowElement) {
this.currentFlowElement = currentFlowElement;
if (currentFlowElement != null) {
this.activityId = currentFlowElement.getId();
} else {
this.activityId = null;
}
}
public ActivitiListener getCurrentActivitiListener() {
return currentActivitiListener;
}
public void setCurrentActivitiListener(ActivitiListener currentActivitiListener) {
this.currentActivitiListener = currentActivitiListener;
}
// executions ///////////////////////////////////////////////////////////////
/** ensures initialization and returns the non-null executions list */
public List getExecutions() {
ensureExecutionsInitialized();
return executions;
}
@Override
public void addChildExecution(ExecutionEntity executionEntity) {
ensureExecutionsInitialized();
executions.add((ExecutionEntityImpl) executionEntity);
}
@SuppressWarnings({ "unchecked", "rawtypes" })
protected void ensureExecutionsInitialized() {
if (executions == null) {
this.executions = (List) Context.getCommandContext().getExecutionEntityManager().findChildExecutionsByParentExecutionId(id);
}
}
// business key ////////////////////////////////////////////////////////////
public String getBusinessKey() {
return businessKey;
}
public void setBusinessKey(String businessKey) {
this.businessKey = businessKey;
}
public String getProcessInstanceBusinessKey() {
return getProcessInstance().getBusinessKey();
}
// process definition ///////////////////////////////////////////////////////
public void setProcessDefinitionId(String processDefinitionId) {
this.processDefinitionId = processDefinitionId;
}
public String getProcessDefinitionId() {
return processDefinitionId;
}
public String getProcessDefinitionKey() {
return processDefinitionKey;
}
public void setProcessDefinitionKey(String processDefinitionKey) {
this.processDefinitionKey = processDefinitionKey;
}
public String getProcessDefinitionName() {
return processDefinitionName;
}
public void setProcessDefinitionName(String processDefinitionName) {
this.processDefinitionName = processDefinitionName;
}
public Integer getProcessDefinitionVersion() {
return processDefinitionVersion;
}
public void setProcessDefinitionVersion(Integer processDefinitionVersion) {
this.processDefinitionVersion = processDefinitionVersion;
}
public String getDeploymentId() {
return deploymentId;
}
public void setDeploymentId(String deploymentId) {
this.deploymentId = deploymentId;
}
// process instance /////////////////////////////////////////////////////////
/** ensures initialization and returns the process instance. */
public ExecutionEntityImpl getProcessInstance() {
ensureProcessInstanceInitialized();
return processInstance;
}
protected void ensureProcessInstanceInitialized() {
if ((processInstance == null) && (processInstanceId != null)) {
processInstance = (ExecutionEntityImpl) Context.getCommandContext().getExecutionEntityManager().findById(processInstanceId);
}
}
public void setProcessInstance(ExecutionEntity processInstance) {
this.processInstance = (ExecutionEntityImpl) processInstance;
if (processInstance != null) {
this.processInstanceId = this.processInstance.getId();
}
}
public boolean isProcessInstanceType() {
return parentId == null;
}
// parent ///////////////////////////////////////////////////////////////////
/** ensures initialization and returns the parent */
public ExecutionEntityImpl getParent() {
ensureParentInitialized();
return parent;
}
protected void ensureParentInitialized() {
if (parent == null && parentId != null) {
parent = (ExecutionEntityImpl) Context.getCommandContext().getExecutionEntityManager().findById(parentId);
}
}
public void setParent(ExecutionEntity parent) {
this.parent = (ExecutionEntityImpl) parent;
if (parent != null) {
this.parentId = parent.getId();
} else {
this.parentId = null;
}
}
// parent process instance id /////////////////////////////////////////
public String getParentProcessInstanceId() {
return parentProcessInstanceId;
}
public void setParentProcessInstanceId(String parentProcessInstanceId) {
this.parentProcessInstanceId = parentProcessInstanceId;
}
// super- and subprocess executions /////////////////////////////////////////
public String getSuperExecutionId() {
return superExecutionId;
}
public ExecutionEntityImpl getSuperExecution() {
ensureSuperExecutionInitialized();
return superExecution;
}
public void setSuperExecution(ExecutionEntity superExecution) {
this.superExecution = (ExecutionEntityImpl) superExecution;
if (superExecution != null) {
superExecution.setSubProcessInstance(null);
}
if (superExecution != null) {
this.superExecutionId = ((ExecutionEntityImpl) superExecution).getId();
this.parentProcessInstanceId = superExecution.getProcessInstanceId();
} else {
this.superExecutionId = null;
this.parentProcessInstanceId = null;
}
}
protected void ensureSuperExecutionInitialized() {
if (superExecution == null && superExecutionId != null) {
superExecution = (ExecutionEntityImpl) Context.getCommandContext().getExecutionEntityManager().findById(superExecutionId);
}
}
public ExecutionEntityImpl getSubProcessInstance() {
ensureSubProcessInstanceInitialized();
return subProcessInstance;
}
public void setSubProcessInstance(ExecutionEntity subProcessInstance) {
this.subProcessInstance = (ExecutionEntityImpl) subProcessInstance;
}
protected void ensureSubProcessInstanceInitialized() {
if (subProcessInstance == null) {
subProcessInstance = (ExecutionEntityImpl) Context.getCommandContext().getExecutionEntityManager().findSubProcessInstanceBySuperExecutionId(id);
}
}
public ExecutionEntity getRootProcessInstance() {
ensureRootProcessInstanceInitialized();
return rootProcessInstance;
}
protected void ensureRootProcessInstanceInitialized() {
if (rootProcessInstanceId == null) {
rootProcessInstance = (ExecutionEntityImpl) Context.getCommandContext().getExecutionEntityManager().findById(rootProcessInstanceId);
}
}
public void setRootProcessInstance(ExecutionEntity rootProcessInstance) {
this.rootProcessInstance = (ExecutionEntityImpl) rootProcessInstance;
if (rootProcessInstance != null) {
this.rootProcessInstanceId = rootProcessInstance.getId();
} else {
this.rootProcessInstanceId = null;
}
}
public String getRootProcessInstanceId() {
return rootProcessInstanceId;
}
public void setRootProcessInstanceId(String rootProcessInstanceId) {
this.rootProcessInstanceId = rootProcessInstanceId;
}
// scopes ///////////////////////////////////////////////////////////////////
public boolean isScope() {
return isScope;
}
public void setScope(boolean isScope) {
this.isScope = isScope;
}
public void forceUpdate() {
this.forcedUpdate = true;
}
// VariableScopeImpl methods //////////////////////////////////////////////////////////////////
// TODO: this should ideally move to another place
@Override
protected void initializeVariableInstanceBackPointer(VariableInstanceEntity variableInstance) {
if (processInstanceId != null) {
variableInstance.setProcessInstanceId(processInstanceId);
} else {
variableInstance.setProcessInstanceId(id);
}
variableInstance.setExecutionId(id);
}
@Override
protected Collection loadVariableInstances() {
return Context.getCommandContext().getVariableInstanceEntityManager().findVariableInstancesByExecutionId(id);
}
@Override
protected VariableScopeImpl getParentVariableScope() {
return getParent();
}
/**
* used to calculate the sourceActivityExecution for method {@link #updateActivityInstanceIdInHistoricVariableUpdate(HistoricDetailVariableInstanceUpdateEntity, ExecutionEntityImpl)}
*/
protected ExecutionEntityImpl getSourceActivityExecution() {
return this;
}
@Override
protected VariableInstanceEntity createVariableInstance(String variableName, Object value, ExecutionEntity sourceActivityExecution) {
VariableInstanceEntity result = super.createVariableInstance(variableName, value, sourceActivityExecution);
// Dispatch event, if needed
if (Context.getProcessEngineConfiguration() != null && Context.getProcessEngineConfiguration().getEventDispatcher().isEnabled()) {
Context
.getProcessEngineConfiguration()
.getEventDispatcher()
.dispatchEvent(
ActivitiEventBuilder.createVariableEvent(ActivitiEventType.VARIABLE_CREATED, variableName, value, result.getType(), result.getTaskId(), result.getExecutionId(), getProcessInstanceId(),
getProcessDefinitionId()));
}
return result;
}
@Override
protected void updateVariableInstance(VariableInstanceEntity variableInstance, Object value, ExecutionEntity sourceActivityExecution) {
super.updateVariableInstance(variableInstance, value, sourceActivityExecution);
// Dispatch event, if needed
if (Context.getProcessEngineConfiguration() != null && Context.getProcessEngineConfiguration().getEventDispatcher().isEnabled()) {
Context
.getProcessEngineConfiguration()
.getEventDispatcher()
.dispatchEvent(
ActivitiEventBuilder.createVariableEvent(ActivitiEventType.VARIABLE_UPDATED, variableInstance.getName(), value, variableInstance.getType(), variableInstance.getTaskId(),
variableInstance.getExecutionId(), getProcessInstanceId(), getProcessDefinitionId()));
}
}
@Override
protected VariableInstanceEntity getSpecificVariable(String variableName) {
CommandContext commandContext = Context.getCommandContext();
if (commandContext == null) {
throw new ActivitiException("lazy loading outside command context");
}
VariableInstanceEntity variableInstance = commandContext.getVariableInstanceEntityManager().findVariableInstanceByExecutionAndName(id, variableName);
return variableInstance;
}
@Override
protected List getSpecificVariables(Collection variableNames) {
CommandContext commandContext = Context.getCommandContext();
if (commandContext == null) {
throw new ActivitiException("lazy loading outside command context");
}
return commandContext.getVariableInstanceEntityManager().findVariableInstancesByExecutionAndNames(id, variableNames);
}
// event subscription support //////////////////////////////////////////////
public List getEventSubscriptions() {
ensureEventSubscriptionsInitialized();
return eventSubscriptions;
}
protected void ensureEventSubscriptionsInitialized() {
if (eventSubscriptions == null) {
eventSubscriptions = Context.getCommandContext().getEventSubscriptionEntityManager().findEventSubscriptionsByExecution(id);
}
}
// referenced job entities //////////////////////////////////////////////////
public List getJobs() {
ensureJobsInitialized();
return jobs;
}
protected void ensureJobsInitialized() {
if (jobs == null) {
jobs = Context.getCommandContext().getJobEntityManager().findJobsByExecutionId(id);
}
}
public List getTimerJobs() {
ensureTimerJobsInitialized();
return timerJobs;
}
protected void ensureTimerJobsInitialized() {
if (timerJobs == null) {
timerJobs = Context.getCommandContext().getTimerJobEntityManager().findJobsByExecutionId(id);
}
}
// referenced task entities ///////////////////////////////////////////////////
protected void ensureTasksInitialized() {
if (tasks == null) {
tasks = Context.getCommandContext().getTaskEntityManager().findTasksByExecutionId(id);
}
}
public List getTasks() {
ensureTasksInitialized();
return tasks;
}
// identity links ///////////////////////////////////////////////////////////
public List getIdentityLinks() {
ensureIdentityLinksInitialized();
return identityLinks;
}
protected void ensureIdentityLinksInitialized() {
if (identityLinks == null) {
identityLinks = Context.getCommandContext().getIdentityLinkEntityManager().findIdentityLinksByProcessInstanceId(id);
}
}
// getters and setters //////////////////////////////////////////////////////
public String getProcessInstanceId() {
return processInstanceId;
}
public void setProcessInstanceId(String processInstanceId) {
this.processInstanceId = processInstanceId;
}
public String getParentId() {
return parentId;
}
public void setParentId(String parentId) {
this.parentId = parentId;
}
public String getActivityId() {
return activityId;
}
public boolean isConcurrent() {
return isConcurrent;
}
public void setConcurrent(boolean isConcurrent) {
this.isConcurrent = isConcurrent;
}
public boolean isActive() {
return isActive;
}
public void setActive(boolean isActive) {
this.isActive = isActive;
}
public void inactivate() {
this.isActive = false;
}
public boolean isEnded() {
return isEnded;
}
public void setEnded(boolean isEnded) {
this.isEnded = isEnded;
}
public String getEventName() {
return eventName;
}
public void setEventName(String eventName) {
this.eventName = eventName;
}
public String getDeleteReason() {
return deleteReason;
}
public void setDeleteReason(String deleteReason) {
this.deleteReason = deleteReason;
}
public int getSuspensionState() {
return suspensionState;
}
public void setSuspensionState(int suspensionState) {
this.suspensionState = suspensionState;
}
public boolean isSuspended() {
return suspensionState == SuspensionState.SUSPENDED.getStateCode();
}
public boolean isEventScope() {
return isEventScope;
}
public void setEventScope(boolean isEventScope) {
this.isEventScope = isEventScope;
}
@Override
public boolean isMultiInstanceRoot() {
return isMultiInstanceRoot;
}
@Override
public void setMultiInstanceRoot(boolean isMultiInstanceRoot) {
this.isMultiInstanceRoot = isMultiInstanceRoot;
}
@Override
public boolean isCountEnabled() {
return isCountEnabled;
}
@Override
public void setCountEnabled(boolean isCountEnabled) {
this.isCountEnabled = isCountEnabled;
}
public String getCurrentActivityId() {
return activityId;
}
@Override
public String getName() {
if (localizedName != null && localizedName.length() > 0) {
return localizedName;
} else {
return name;
}
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
if (localizedDescription != null && localizedDescription.length() > 0) {
return localizedDescription;
} else {
return description;
}
}
public void setDescription(String description) {
this.description = description;
}
public String getLocalizedName() {
return localizedName;
}
public void setLocalizedName(String localizedName) {
this.localizedName = localizedName;
}
public String getLocalizedDescription() {
return localizedDescription;
}
public void setLocalizedDescription(String localizedDescription) {
this.localizedDescription = localizedDescription;
}
public String getTenantId() {
return tenantId;
}
public void setTenantId(String tenantId) {
this.tenantId = tenantId;
}
public Date getLockTime() {
return lockTime;
}
public void setLockTime(Date lockTime) {
this.lockTime = lockTime;
}
public Map getProcessVariables() {
Map variables = new HashMap();
if (queryVariables != null) {
for (VariableInstanceEntity variableInstance : queryVariables) {
if (variableInstance.getId() != null && variableInstance.getTaskId() == null) {
variables.put(variableInstance.getName(), variableInstance.getValue());
}
}
}
return variables;
}
public List getQueryVariables() {
if (queryVariables == null && Context.getCommandContext() != null) {
queryVariables = new VariableInitializingList();
}
return queryVariables;
}
public void setQueryVariables(List queryVariables) {
this.queryVariables = queryVariables;
}
public boolean isDeleted() {
return isDeleted;
}
public void setDeleted(boolean isDeleted) {
this.isDeleted = isDeleted;
}
public String getActivityName() {
return activityName;
}
public String getStartUserId() {
return startUserId;
}
public void setStartUserId(String startUserId) {
this.startUserId = startUserId;
}
public Date getStartTime() {
return startTime;
}
public void setStartTime(Date startTime) {
this.startTime = startTime;
}
public int getEventSubscriptionCount() {
return eventSubscriptionCount;
}
public void setEventSubscriptionCount(int eventSubscriptionCount) {
this.eventSubscriptionCount = eventSubscriptionCount;
}
public int getTaskCount() {
return taskCount;
}
public void setTaskCount(int taskCount) {
this.taskCount = taskCount;
}
public int getJobCount() {
return jobCount;
}
public void setJobCount(int jobCount) {
this.jobCount = jobCount;
}
public int getTimerJobCount() {
return timerJobCount;
}
public void setTimerJobCount(int timerJobCount) {
this.timerJobCount = timerJobCount;
}
public int getSuspendedJobCount() {
return suspendedJobCount;
}
public void setSuspendedJobCount(int suspendedJobCount) {
this.suspendedJobCount = suspendedJobCount;
}
public int getDeadLetterJobCount() {
return deadLetterJobCount;
}
public void setDeadLetterJobCount(int deadLetterJobCount) {
this.deadLetterJobCount = deadLetterJobCount;
}
public int getVariableCount() {
return variableCount;
}
public void setVariableCount(int variableCount) {
this.variableCount = variableCount;
}
public int getIdentityLinkCount() {
return identityLinkCount;
}
public void setIdentityLinkCount(int identityLinkCount) {
this.identityLinkCount = identityLinkCount;
}
@Override
public void setAppVersion(Integer appVersion) {
this.appVersion = appVersion;
}
@Override
public Integer getAppVersion() {
return appVersion;
}
//toString /////////////////////////////////////////////////////////////////
public String toString() {
if (isProcessInstanceType()) {
return "ProcessInstance[" + getId() + "]";
} else {
StringBuilder strb = new StringBuilder();
if (isScope) {
strb.append("Scoped execution[ id '" + getId() + "' ]");
} else if(isMultiInstanceRoot) {
strb.append("Multi instance root execution[ id '" + getId() + "' ]");
} else {
strb.append("Execution[ id '" + getId() + "' ]");
}
if (activityId != null) {
strb.append(" - activity '" + activityId);
}
if (parentId != null) {
strb.append(" - parent '" + parentId + "'");
}
return strb.toString();
}
}
}
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