Process instances are created form suspended process via signal. This is not the right behavior. This behavior does not happen via message or runtime startup of process instance which is the expected behavior.
I have a fix, here it is.
/* 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 java.util.Map;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.ActivitiObjectNotFoundException;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.deploy.DeploymentManager;
import org.activiti.engine.impl.persistence.entity.EventSubscriptionEntity;
import org.activiti.engine.impl.persistence.entity.ExecutionEntity;
import org.activiti.engine.impl.persistence.entity.ProcessDefinitionEntity;
import org.activiti.engine.impl.pvm.process.ActivityImpl;
import org.activiti.engine.repository.ProcessDefinition;
/**
- @author Daniel Meyer
-
@author Joram Barrez
*/
public class SignalEventHandler extends AbstractEventHandler {
public static final String EVENT_HANDLER_TYPE = “signal”;
public String getEventHandlerType() {
return EVENT_HANDLER_TYPE;
}
@Override
public void handleEvent(EventSubscriptionEntity eventSubscription, Object payload, CommandContext commandContext) {
if (eventSubscription.getExecutionId() != null) {
super.handleEvent(eventSubscription, payload, commandContext);
} else if (eventSubscription.getProcessDefinitionId() != null) {
// Start event
String processDefinitionId = eventSubscription.getProcessDefinitionId();
DeploymentManager deploymentCache = Context
.getProcessEngineConfiguration()
.getDeploymentManager();
ProcessDefinitionEntity processDefinition = deploymentCache.findDeployedProcessDefinitionById(processDefinitionId);
if (processDefinition == null) {
throw new ActivitiObjectNotFoundException("No process definition found for id '" + processDefinitionId + "'", ProcessDefinition.class);
}
if (processDefinition.isSuspended()) {
throw new ActivitiException("Could not handle signal: process definition with id: " + processDefinitionId + " is suspended");
}
ActivityImpl startActivity = processDefinition.findActivity(eventSubscription.getActivityId());
if (startActivity == null) {
throw new ActivitiException("Could no handle signal: no start activity found with id " + eventSubscription.getActivityId());
}
ExecutionEntity processInstance = processDefinition.createProcessInstance(null, startActivity);
if (processInstance == null) {
throw new ActivitiException("Could not handle signal: no process instance started");
}
if (payload != null) {
if (payload instanceof Map) {
Map<String, Object> variables = (Map<String, Object>) payload;
processInstance.setVariables(variables);
}
}
processInstance.start();
} else {
throw new ActivitiException("Invalid signal handling: no execution nor process definition set");
}
}
}