org.camunda.bpm.engine.impl.event.SignalEventHandler Maven / Gradle / Ivy
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* Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. Camunda licenses this file to you under the Apache License,
* Version 2.0; 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.event;
import org.camunda.bpm.engine.impl.ProcessEngineLogger;
import org.camunda.bpm.engine.impl.cmd.CommandLogger;
import org.camunda.bpm.engine.impl.context.Context;
import org.camunda.bpm.engine.impl.interceptor.CommandContext;
import org.camunda.bpm.engine.impl.persistence.deploy.cache.DeploymentCache;
import org.camunda.bpm.engine.impl.persistence.entity.EventSubscriptionEntity;
import org.camunda.bpm.engine.impl.persistence.entity.ProcessDefinitionEntity;
import org.camunda.bpm.engine.impl.pvm.PvmProcessInstance;
import org.camunda.bpm.engine.impl.pvm.process.ActivityImpl;
import java.util.Map;
import static org.camunda.bpm.engine.impl.util.EnsureUtil.ensureNotNull;
/**
* @author Daniel Meyer
*/
public class SignalEventHandler extends EventHandlerImpl {
private final static CommandLogger LOG = ProcessEngineLogger.CMD_LOGGER;
public SignalEventHandler() {
super(EventType.SIGNAL);
}
protected void handleStartEvent(EventSubscriptionEntity eventSubscription, Map payload, String businessKey, CommandContext commandContext) {
String processDefinitionId = eventSubscription.getConfiguration();
ensureNotNull("Configuration of signal start event subscription '" + eventSubscription.getId() + "' contains no process definition id.",
processDefinitionId);
DeploymentCache deploymentCache = Context.getProcessEngineConfiguration().getDeploymentCache();
ProcessDefinitionEntity processDefinition = deploymentCache.findDeployedProcessDefinitionById(processDefinitionId);
if (processDefinition == null || processDefinition.isSuspended()) {
// ignore event subscription
LOG.debugIgnoringEventSubscription(eventSubscription, processDefinitionId);
} else {
ActivityImpl signalStartEvent = processDefinition.findActivity(eventSubscription.getActivityId());
PvmProcessInstance processInstance = processDefinition.createProcessInstance(businessKey, signalStartEvent);
processInstance.start(payload);
}
}
@Override
public void handleEvent(EventSubscriptionEntity eventSubscription,
Object payload,
Object payloadLocal,
Object payloadToTriggeredScope,
String businessKey,
CommandContext commandContext) {
if (eventSubscription.getExecutionId() != null) {
handleIntermediateEvent(eventSubscription, payload, payloadLocal, null, commandContext);
}
else {
handleStartEvent(eventSubscription, (Map) payload, businessKey, commandContext);
}
}
}
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