/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
*
* 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.kie.server.jms.executor;
import java.util.List;
import javax.annotation.PostConstruct;
import javax.ejb.ActivationConfigProperty;
import javax.ejb.MessageDriven;
import javax.ejb.TransactionManagement;
import javax.ejb.TransactionManagementType;
import javax.jms.Message;
import org.jbpm.executor.impl.ClassCacheManager;
import org.jbpm.executor.impl.ExecutorImpl;
import org.jbpm.executor.impl.ExecutorServiceImpl;
import org.jbpm.executor.impl.jms.JmsAvailableJobsExecutor;
import org.kie.api.executor.ExecutorService;
import org.kie.server.services.api.KieServerExtension;
import org.kie.server.services.api.SupportedTransports;
import org.kie.server.services.impl.KieServerImpl;
import org.kie.server.services.impl.KieServerLocator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@TransactionManagement(TransactionManagementType.BEAN)
@MessageDriven(name = "KieExecutorMDB", activationConfig = {
@ActivationConfigProperty(propertyName = "destination", propertyValue = "queue/KIE.SERVER.EXECUTOR"),
@ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),
@ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge")})
public class KieExecutorMDB extends JmsAvailableJobsExecutor {
private static final Logger logger = LoggerFactory.getLogger(KieExecutorMDB.class);
private boolean active = true;
private KieServerImpl kieServer;
@PostConstruct
public void init() {
kieServer = KieServerLocator.getInstance();
KieServerExtension bpmServerExtension = null;
for (KieServerExtension extension : kieServer.getServerRegistry().getServerExtensions()) {
if (extension.isActive() && "BPM".equals(extension.getImplementedCapability())) {
bpmServerExtension = extension;
}
}
if (bpmServerExtension == null) {
logger.warn("No BPM capability found on the server, ExecutorMDB is deactivated");
active = false;
return;
}
ExecutorService executorService = bpmServerExtension.getAppComponents(ExecutorService.class);
if (executorService == null) {
logger.warn("Unable to find ExecutorService within {} extension, deactivating ExecutorMDB", bpmServerExtension);
active = false;
return;
}
setClassCacheManager(new ClassCacheManager());
setQueryService(((ExecutorServiceImpl) executorService).getQueryService());
setExecutorStoreService(((ExecutorImpl) ((ExecutorServiceImpl) executorService).getExecutor()).getExecutorStoreService());
}
@Override
public void onMessage(Message message) {
if (!active) {
throw new RuntimeException("ExecutorMDB is not active most likely due to missing KieServer capabilities, check startup logs");
}
super.onMessage(message);
}
}