/**
* Copyright (c) 2010-2014, openHAB.org and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.openhab.model.rule.internal.engine;
import org.eclipse.emf.ecore.EObject;
import org.openhab.core.scriptengine.Script;
import org.openhab.core.scriptengine.ScriptEngine;
import org.openhab.core.scriptengine.ScriptExecutionException;
import org.openhab.model.core.ModelRepository;
import org.openhab.model.rule.internal.RuleModelActivator;
import org.openhab.model.rule.rules.Rule;
import org.openhab.model.rule.rules.RuleModel;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Implementation of Quartz {@link Job}-Interface. It takes a rule
* and simply executes it.
*
* @author Kai Kreuzer
* @since 0.9.0
*/
public class ExecuteRuleJob implements Job {
private static final Logger logger = LoggerFactory.getLogger(ExecuteRuleJob.class);
public static final String JOB_DATA_RULEMODEL = "model";
public static final String JOB_DATA_RULENAME = "rule";
public void execute(JobExecutionContext context) throws JobExecutionException {
String modelName = (String) context.getJobDetail().getJobDataMap().get(JOB_DATA_RULEMODEL);
String ruleName = (String) context.getJobDetail().getJobDataMap().get(JOB_DATA_RULENAME);
ModelRepository modelRepository = RuleModelActivator.modelRepositoryTracker.getService();
ScriptEngine scriptEngine = RuleModelActivator.scriptEngineTracker.getService();
if(modelRepository!=null && scriptEngine!=null) {
EObject model = modelRepository.getModel(modelName);
if (model instanceof RuleModel) {
RuleModel ruleModel = (RuleModel) model;
Rule rule = getRule(ruleModel, ruleName);
if(rule!=null) {
Script script = scriptEngine.newScriptFromXExpression(rule.getScript());
logger.debug("Executing scheduled rule '{}'", rule.getName());
try {
script.execute(RuleContextHelper.getContext(rule));
} catch (ScriptExecutionException e) {
logger.error("Error during the execution of rule {}", rule.getName(), e.getCause());
}
} else {
logger.debug("Scheduled rule '{}' does not exist", ruleName);
}
} else {
logger.debug("Rule file '{}' does not exist", modelName);
}
}
}
private Rule getRule(RuleModel ruleModel, String ruleName) {
for(Rule rule : ruleModel.getRules()) {
if(rule.getName().equals(ruleName)) {
return rule;
}
}
return null;
}
}