/* 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.test.examples.pvm;
import org.camunda.bpm.engine.impl.pvm.PvmTransition;
import org.camunda.bpm.engine.impl.pvm.delegate.ActivityExecution;
import org.camunda.bpm.engine.impl.pvm.delegate.SignallableActivityBehavior;
/**
* @author Tom Baeyens
*/
public class WaitState implements SignallableActivityBehavior {
public void execute(ActivityExecution execution) {
// By default, the execution will not propagate.
// So if no method like take(Transition) is called on execution
// then the activity will behave as a wait state. The execution is currently
// pointing to the activity. The original call to execution.start()
// or execution.event() will return. Then the execution object will
// remain pointing to the current activity until execution.event(Object) is called.
// That method will delegate to the method below.
}
public void signal(ActivityExecution execution, String signalName, Object event) {
PvmTransition transition = findTransition(execution, signalName);
execution.take(transition);
}
protected PvmTransition findTransition(ActivityExecution execution, String signalName) {
for (PvmTransition transition: execution.getActivity().getOutgoingTransitions()) {
if (signalName==null) {
if (transition.getId()==null) {
return transition;
}
} else {
if (signalName.equals(transition.getId())) {
return transition;
}
}
}
throw new RuntimeException("no transition for signalName '"+signalName+"' in WaitState '"+execution.getActivity().getId()+"'");
}
}