/* 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.impl.cmd;
import java.io.Serializable;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.camunda.bpm.engine.ProcessEngineException;
import org.camunda.bpm.engine.impl.event.MessageEventHandler;
import org.camunda.bpm.engine.impl.interceptor.Command;
import org.camunda.bpm.engine.impl.interceptor.CommandContext;
import org.camunda.bpm.engine.impl.persistence.entity.EventSubscriptionEntity;
import static org.camunda.bpm.engine.impl.util.EnsureUtil.ensureNotNull;
/**
* @author Daniel Meyer
* @author Joram Barrez
*/
public class MessageEventReceivedCmd implements Command<Void>, Serializable {
private static final long serialVersionUID = 1L;
protected final String executionId;
protected final Map<String, Object> processVariables;
protected final String messageName;
public MessageEventReceivedCmd(String messageName, String executionId, Map<String, Object> processVariables) {
this.executionId = executionId;
this.messageName = messageName;
this.processVariables = processVariables;
}
@Override
public Void execute(CommandContext commandContext) {
ensureNotNull("executionId", executionId);
ensureNotNull("messageName", messageName);
List<EventSubscriptionEntity> eventSubscriptions = commandContext.getEventSubscriptionManager()
.findEventSubscriptionsByNameAndExecution(MessageEventHandler.EVENT_HANDLER_TYPE, messageName, executionId);
if (eventSubscriptions.isEmpty()) {
throw new ProcessEngineException("Execution with id '" + executionId + "' does not have a subscription to a message event with name '" + messageName + "'");
}
// there can be only one:
EventSubscriptionEntity eventSubscriptionEntity = eventSubscriptions.get(0);
HashMap<String, Object> payload = null;
if (processVariables != null) {
payload = new HashMap<String, Object>(processVariables);
}
eventSubscriptionEntity.eventReceived(payload, false);
return null;
}
}