package org.activiti.crystalball.simulator.impl;
import org.activiti.crystalball.simulator.SimulationEvent;
import org.activiti.crystalball.simulator.SimulationEventHandler;
import org.activiti.crystalball.simulator.SimulationRunContext;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.delegate.VariableScope;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.scripting.ScriptingEngines;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This class drives simulation event handling by script.
*
* @author martin.grofcik
*/
public class ScriptEventHandler implements SimulationEventHandler {
private static Logger log = LoggerFactory.getLogger(StartProcessByIdEventHandler.class);
protected String scriptPropertyName;
protected String language;
public ScriptEventHandler(String scriptPropertyName, String language) {
this.scriptPropertyName = scriptPropertyName;
this.language = language;
}
@Override
public void init() {
}
@Override
public void handle(SimulationEvent event) {
ScriptingEngines scriptingEngines = Context
.getProcessEngineConfiguration()
.getScriptingEngines();
VariableScope execution = SimulationRunContext.getExecution();
try {
scriptingEngines.evaluate((String) event.getProperty(this.scriptPropertyName), language, execution, false);
} catch (ActivitiException e) {
log.warn("Exception while executing simulation event " + event + " scriptPropertyName :" +
this.scriptPropertyName + "\n script: "+ event.getProperty(this.scriptPropertyName) +
"\n exception is:" + e.getMessage());
throw e;
}
}
}