/* 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.delegate.event.impl;
import java.util.Map;
import org.activiti.engine.delegate.DelegateExecution;
import org.activiti.engine.delegate.event.ActivitiActivityEvent;
import org.activiti.engine.delegate.event.ActivitiEntityEvent;
import org.activiti.engine.delegate.event.ActivitiEntityWithVariablesEvent;
import org.activiti.engine.delegate.event.ActivitiErrorEvent;
import org.activiti.engine.delegate.event.ActivitiEvent;
import org.activiti.engine.delegate.event.ActivitiEventType;
import org.activiti.engine.delegate.event.ActivitiExceptionEvent;
import org.activiti.engine.delegate.event.ActivitiMembershipEvent;
import org.activiti.engine.delegate.event.ActivitiMessageEvent;
import org.activiti.engine.delegate.event.ActivitiSequenceFlowTakenEvent;
import org.activiti.engine.delegate.event.ActivitiSignalEvent;
import org.activiti.engine.delegate.event.ActivitiVariableEvent;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.context.ExecutionContext;
import org.activiti.engine.impl.persistence.entity.IdentityLinkEntity;
import org.activiti.engine.impl.variable.VariableType;
import org.activiti.engine.repository.ProcessDefinition;
import org.activiti.engine.runtime.Job;
import org.activiti.engine.task.Task;
/**
* Builder class used to create {@link ActivitiEvent} implementations.
*
* @author Frederik Heremans
*/
public class ActivitiEventBuilder {
/**
* @param type type of event
* @return an {@link ActivitiEvent} that doesn't have it's execution context-fields filled,
* as the event is a global event, independant of any running execution.
*/
public static ActivitiEvent createGlobalEvent(ActivitiEventType type) {
ActivitiEventImpl newEvent = new ActivitiEventImpl(type);
return newEvent;
}
public static ActivitiEvent createEvent(ActivitiEventType type, String executionId, String processInstanceId, String processDefinitionId) {
ActivitiEventImpl newEvent = new ActivitiEventImpl(type);
newEvent.setExecutionId(executionId);
newEvent.setProcessDefinitionId(processDefinitionId);
newEvent.setProcessInstanceId(processInstanceId);
return newEvent;
}
/**
* @param type type of event
* @param entity the entity this event targets
* @return an {@link ActivitiEntityEvent}. In case an {@link ExecutionContext} is active, the execution related
* event fields will be populated. If not, execution details will be reteived from the {@link Object} if possible.
*/
public static ActivitiEntityEvent createEntityEvent(ActivitiEventType type, Object entity) {
ActivitiEntityEventImpl newEvent = new ActivitiEntityEventImpl(entity, type);
// In case an execution-context is active, populate the event fields related to the execution
populateEventWithCurrentContext(newEvent);
return newEvent;
}
/**
* @param type type of event
* @param entity the entity this event targets
* @param variables the variables associated with this entity
* @return an {@link ActivitiEntityEvent}. In case an {@link ExecutionContext} is active, the execution related
* event fields will be populated. If not, execution details will be reteived from the {@link Object} if possible.
*/
@SuppressWarnings("rawtypes")
public static ActivitiEntityWithVariablesEvent createEntityWithVariablesEvent(ActivitiEventType type, Object entity, Map variables, boolean localScope) {
ActivitiEntityWithVariablesEventImpl newEvent = new ActivitiEntityWithVariablesEventImpl(entity, variables, localScope, type);
// In case an execution-context is active, populate the event fields related to the execution
populateEventWithCurrentContext(newEvent);
return newEvent;
}
public static ActivitiSequenceFlowTakenEvent createSequenceFlowTakenEvent(ActivitiEventType type, String sequenceFlowId,
String sourceActivityId, String sourceActivityName, String sourceActivityType, String sourceActivityBehaviorClass,
String targetActivityId, String targetActivityName, String targetActivityType, String targetActivityBehaviorClass) {
ActivitiSequenceFlowTakenEventImpl newEvent = new ActivitiSequenceFlowTakenEventImpl(type);
populateEventWithCurrentContext(newEvent);
newEvent.setId(sequenceFlowId);
newEvent.setSourceActivityId(sourceActivityId);
newEvent.setSourceActivityName(sourceActivityName);
newEvent.setSourceActivityType(sourceActivityType);
newEvent.setSourceActivityBehaviorClass(sourceActivityBehaviorClass);
newEvent.setTargetActivityId(targetActivityId);
newEvent.setTargetActivityName(targetActivityName);
newEvent.setTargetActivityType(targetActivityType);
newEvent.setTargetActivityBehaviorClass(targetActivityBehaviorClass);
return newEvent;
}
/**
* @param type type of event
* @param entity the entity this event targets
* @return an {@link ActivitiEntityEvent}
*/
public static ActivitiEntityEvent createEntityEvent(ActivitiEventType type, Object entity, String executionId,
String processInstanceId, String processDefinitionId) {
ActivitiEntityEventImpl newEvent = new ActivitiEntityEventImpl(entity, type);
newEvent.setExecutionId(executionId);
newEvent.setProcessInstanceId(processInstanceId);
newEvent.setProcessDefinitionId(processDefinitionId);
return newEvent;
}
/**
* @param type type of event
* @param entity the entity this event targets
* @param cause the cause of the event
* @return an {@link ActivitiEntityEvent} that is also instance of {@link ActivitiExceptionEvent}.
* In case an {@link ExecutionContext} is active, the execution related event fields will be populated.
*/
public static ActivitiEntityEvent createEntityExceptionEvent(ActivitiEventType type, Object entity, Throwable cause) {
ActivitiEntityExceptionEventImpl newEvent = new ActivitiEntityExceptionEventImpl(entity, type, cause);
// In case an execution-context is active, populate the event fields related to the execution
populateEventWithCurrentContext(newEvent);
return newEvent;
}
/**
* @param type type of event
* @param entity the entity this event targets
* @param cause the cause of the event
* @return an {@link ActivitiEntityEvent} that is also instance of {@link ActivitiExceptionEvent}.
*/
public static ActivitiEntityEvent createEntityExceptionEvent(ActivitiEventType type, Object entity, Throwable cause, String executionId,
String processInstanceId, String processDefinitionId) {
ActivitiEntityExceptionEventImpl newEvent = new ActivitiEntityExceptionEventImpl(entity, type, cause);
newEvent.setExecutionId(executionId);
newEvent.setProcessInstanceId(processInstanceId);
newEvent.setProcessDefinitionId(processDefinitionId);
return newEvent;
}
public static ActivitiActivityEvent createActivityEvent(ActivitiEventType type, String activityId, String activityName,
String executionId, String processInstanceId, String processDefinitionId, String activityType, String behaviourClass) {
ActivitiActivityEventImpl newEvent = new ActivitiActivityEventImpl(type);
newEvent.setActivityId(activityId);
newEvent.setActivityName(activityName);
newEvent.setExecutionId(executionId);
newEvent.setProcessDefinitionId(processDefinitionId);
newEvent.setProcessInstanceId(processInstanceId);
newEvent.setActivityType(activityType);
newEvent.setBehaviorClass(behaviourClass);
return newEvent;
}
public static ActivitiSignalEvent createSignalEvent(ActivitiEventType type, String activityId, String signalName, Object signalData,
String executionId, String processInstanceId, String processDefinitionId) {
ActivitiSignalEventImpl newEvent = new ActivitiSignalEventImpl(type);
newEvent.setActivityId(activityId);
newEvent.setExecutionId(executionId);
newEvent.setProcessDefinitionId(processDefinitionId);
newEvent.setProcessInstanceId(processInstanceId);
newEvent.setSignalName(signalName);
newEvent.setSignalData(signalData);
return newEvent;
}
public static ActivitiMessageEvent createMessageEvent(ActivitiEventType type, String activityId, String messageName, Object payload,
String executionId, String processInstanceId, String processDefinitionId) {
ActivitiMessageEventImpl newEvent = new ActivitiMessageEventImpl(type);
newEvent.setActivityId(activityId);
newEvent.setExecutionId(executionId);
newEvent.setProcessDefinitionId(processDefinitionId);
newEvent.setProcessInstanceId(processInstanceId);
newEvent.setMessageName(messageName);
newEvent.setMessageData(payload);
return newEvent;
}
public static ActivitiErrorEvent createErrorEvent(ActivitiEventType type, String activityId, String errorCode, String executionId, String processInstanceId, String processDefinitionId) {
ActivitiErrorEventImpl newEvent = new ActivitiErrorEventImpl(type);
newEvent.setActivityId(activityId);
newEvent.setExecutionId(executionId);
newEvent.setProcessDefinitionId(processDefinitionId);
newEvent.setProcessInstanceId(processInstanceId);
newEvent.setErrorCode(errorCode);
return newEvent;
}
public static ActivitiVariableEvent createVariableEvent(ActivitiEventType type, String variableName, Object variableValue, VariableType variableType, String taskId,
String executionId, String processInstanceId, String processDefinitionId) {
ActivitiVariableEventImpl newEvent = new ActivitiVariableEventImpl(type);
newEvent.setVariableName(variableName);
newEvent.setVariableValue(variableValue);
newEvent.setVariableType(variableType);
newEvent.setTaskId(taskId);
newEvent.setExecutionId(executionId);
newEvent.setProcessDefinitionId(processDefinitionId);
newEvent.setProcessInstanceId(processInstanceId);
return newEvent;
}
public static ActivitiMembershipEvent createMembershipEvent(ActivitiEventType type, String groupId, String userId) {
ActivitiMembershipEventImpl newEvent = new ActivitiMembershipEventImpl(type);
newEvent.setUserId(userId);
newEvent.setGroupId(groupId);
return newEvent;
}
protected static void populateEventWithCurrentContext(ActivitiEventImpl event) {
boolean extractedFromContext = false;
if(Context.isExecutionContextActive()) {
ExecutionContext executionContext = Context.getExecutionContext();
if(executionContext != null) {
extractedFromContext = true;
event.setExecutionId(executionContext.getExecution().getId());
event.setProcessInstanceId(executionContext.getExecution().getProcessInstanceId());
event.setProcessDefinitionId(executionContext.getExecution().getProcessDefinitionId());
}
}
// Fallback to fetching context from the object itself
if(!extractedFromContext){
if(event instanceof ActivitiEntityEvent) {
Object persistendObject = ((ActivitiEntityEvent) event).getEntity();
if(persistendObject instanceof Job) {
event.setExecutionId(((Job) persistendObject).getExecutionId());
event.setProcessInstanceId(((Job) persistendObject).getProcessInstanceId());
event.setProcessDefinitionId(((Job) persistendObject).getProcessDefinitionId());
} else if(persistendObject instanceof DelegateExecution) {
event.setExecutionId(((DelegateExecution) persistendObject).getId());
event.setProcessInstanceId(((DelegateExecution) persistendObject).getProcessInstanceId());
event.setProcessDefinitionId(((DelegateExecution) persistendObject).getProcessDefinitionId());
} else if(persistendObject instanceof IdentityLinkEntity) {
IdentityLinkEntity idLink = (IdentityLinkEntity) persistendObject;
if(idLink.getProcessDefinitionId() != null) {
event.setProcessDefinitionId(idLink.getProcessDefId());
} else if(idLink.getProcessInstance() != null) {
event.setProcessDefinitionId(idLink.getProcessInstance().getProcessDefinitionId());
event.setProcessInstanceId(idLink.getProcessInstanceId());
event.setExecutionId(idLink.getProcessInstanceId());
} else if(idLink.getTask() != null) {
event.setProcessDefinitionId(idLink.getTask().getProcessDefinitionId());
event.setProcessInstanceId(idLink.getTask().getProcessInstanceId());
event.setExecutionId(idLink.getTask().getExecutionId());
}
} else if(persistendObject instanceof Task) {
event.setProcessInstanceId(((Task)persistendObject).getProcessInstanceId());
event.setExecutionId(((Task)persistendObject).getExecutionId());
event.setProcessDefinitionId(((Task)persistendObject).getProcessDefinitionId());
} else if(persistendObject instanceof ProcessDefinition) {
event.setProcessDefinitionId(((ProcessDefinition) persistendObject).getId());
}
}
}
}
}