/* 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.bpmn.behavior;
import javax.script.ScriptException;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.delegate.BpmnError;
import org.activiti.engine.impl.bpmn.helper.ErrorPropagation;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.pvm.delegate.ActivityExecution;
import org.activiti.engine.impl.scripting.ScriptingEngines;
/**
* activity implementation of the BPMN 2.0 script task.
*
* @author Joram Barrez
* @author Christian Stettler
* @author Falko Menge
*/
public class ScriptTaskActivityBehavior extends TaskActivityBehavior {
protected final String script;
protected final String language;
protected final String resultVariable;
public ScriptTaskActivityBehavior(String script, String language, String resultVariable) {
this.script = script;
this.language = language;
this.resultVariable = resultVariable;
}
public void execute(ActivityExecution execution) throws Exception {
ScriptingEngines scriptingEngines = Context
.getProcessEngineConfiguration()
.getScriptingEngines();
boolean noErrors = true;
try {
Object result = scriptingEngines.evaluate(script, language, execution);
if (resultVariable != null) {
execution.setVariable(resultVariable, result);
}
} catch (ActivitiException e) {
noErrors = false;
if (e.getCause() instanceof ScriptException
&& e.getCause().getCause() instanceof ScriptException
&& e.getCause().getCause().getCause() instanceof BpmnError) {
ErrorPropagation.propagateError((BpmnError) e.getCause().getCause().getCause(), execution);
} else {
throw e;
}
}
if (noErrors) {
leave(execution);
}
}
}