org.activiti.engine.impl.event.CompensationEventHandler Maven / Gradle / Ivy
/* 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.event;
import org.activiti.bpmn.model.FlowElement;
import org.activiti.bpmn.model.Process;
import org.activiti.bpmn.model.SubProcess;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.delegate.event.ActivitiEventType;
import org.activiti.engine.delegate.event.impl.ActivitiEventBuilder;
import org.activiti.engine.impl.bpmn.helper.ScopeUtil;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.entity.CompensateEventSubscriptionEntity;
import org.activiti.engine.impl.persistence.entity.EventSubscriptionEntity;
import org.activiti.engine.impl.persistence.entity.ExecutionEntity;
import org.activiti.engine.impl.util.ProcessDefinitionUtil;
import java.util.List;
/**
*/
public class CompensationEventHandler implements EventHandler {
public String getEventHandlerType() {
return CompensateEventSubscriptionEntity.EVENT_TYPE;
}
public void handleEvent(EventSubscriptionEntity eventSubscription, Object payload, CommandContext commandContext) {
String configuration = eventSubscription.getConfiguration();
if (configuration == null) {
throw new ActivitiException("Compensating execution not set for compensate event subscription with id " + eventSubscription.getId());
}
ExecutionEntity compensatingExecution = commandContext.getExecutionEntityManager().findById(configuration);
String processDefinitionId = compensatingExecution.getProcessDefinitionId();
Process process = ProcessDefinitionUtil.getProcess(processDefinitionId);
if (process == null) {
throw new ActivitiException("Cannot start process instance. Process model (id = " + processDefinitionId + ") could not be found");
}
FlowElement flowElement = process.getFlowElement(eventSubscription.getActivityId(), true);
if (flowElement instanceof SubProcess && !((SubProcess) flowElement).isForCompensation()) {
// descend into scope:
compensatingExecution.setScope(true);
List eventsForThisScope = commandContext.getEventSubscriptionEntityManager().findCompensateEventSubscriptionsByExecutionId(compensatingExecution.getId());
ScopeUtil.throwCompensationEvent(eventsForThisScope, compensatingExecution, false);
} else {
try {
if (commandContext.getProcessEngineConfiguration().getEventDispatcher().isEnabled()) {
commandContext.getProcessEngineConfiguration().getEventDispatcher().dispatchEvent(
ActivitiEventBuilder.createActivityEvent(ActivitiEventType.ACTIVITY_COMPENSATE, flowElement.getId(), flowElement.getName(),
compensatingExecution.getId(), compensatingExecution.getProcessInstanceId(), compensatingExecution.getProcessDefinitionId(), flowElement));
}
compensatingExecution.setCurrentFlowElement(flowElement);
Context.getAgenda().planContinueProcessInCompensation(compensatingExecution);
} catch (Exception e) {
throw new ActivitiException("Error while handling compensation event " + eventSubscription, e);
}
}
}
}