/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.ode.karaf.commands;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import javax.management.*;
import org.apache.karaf.shell.console.OsgiCommandSupport;
import org.apache.ode.bpel.pmapi.*;
import org.apache.ode.jbi.OdeContext;
public abstract class OdeCommandsBase extends OsgiCommandSupport {
protected static String COMPONENT_NAME = "org.apache.servicemix:Type=Component,Name=OdeBpelEngine,SubType=Management";
protected static final String LIST_INSTANCES = "listInstances";
protected static final String LIST_ALL_INSTANCES = "listAllInstances";
protected static final String LIST_ALL_PROCESSES = "listAllProcesses";
protected static final String RECOVER_ACTIVITY= "recoverActivity";
protected static final String TERMINATE = "terminate";
protected static final String SUSPEND = "suspend";
protected static final String RESUME = "resume";
protected MBeanServer getMBeanServer() {
OdeContext ode = OdeContext.getInstance();
if (ode != null) {
return ode.getContext().getMBeanServer();
}
return null;
}
/**
* Invokes an operation on the ODE MBean server
*
* @param <T>
* @param operationName
* @param args
* @param T
* @return
*/
@SuppressWarnings("unchecked")
protected <T> T invoke(final String operationName, final Object[] params,
final String[] signature, long timeoutInSeconds)
throws Exception {
ExecutorService executor = Executors.newSingleThreadExecutor();
Callable<T> callable = new Callable<T>() {
public T call() throws Exception {
MBeanServer server = getMBeanServer();
if (server != null) {
return (T) server.invoke(new ObjectName(COMPONENT_NAME),
operationName, params, signature);
}
return null;
}
};
Future<T> future = executor.submit(callable);
executor.shutdown();
return future.get(timeoutInSeconds, TimeUnit.SECONDS);
}
protected List<TInstanceInfo> getActiveInstances(long timeoutInSeconds)
throws Exception {
return getFilteredInstances(timeoutInSeconds, "status=active");
}
protected List<TInstanceInfo> getSuspendedInstances(long timeoutInSeconds)
throws Exception {
return getFilteredInstances(timeoutInSeconds, "status=suspended");
}
protected List<TInstanceInfo> getFilteredInstances(long timeoutInSeconds, String filter)
throws Exception {
InstanceInfoListDocument instances = invoke(LIST_INSTANCES,
new Object[] {filter, "pid", 10},
new String[] {String.class.getName(), String.class.getName(), int.class.getName()},
timeoutInSeconds);
if (instances != null) {
return Arrays.asList(instances.getInstanceInfoList().getInstanceInfoArray());
}
return null;
}
protected List<TInstanceInfo> getAllInstances(long timeoutInSeconds)
throws Exception {
InstanceInfoListDocument instances = invoke(LIST_ALL_INSTANCES, null,
null, timeoutInSeconds);
if (instances != null) {
return Arrays.asList(instances.getInstanceInfoList().getInstanceInfoArray());
}
return null;
}
protected List<TProcessInfo> getProcesses(long timeoutInSeconds)
throws Exception {
ProcessInfoListDocument result = invoke(LIST_ALL_PROCESSES, null, null, timeoutInSeconds);
if (result != null) {
return Arrays.asList(result.getProcessInfoList().getProcessInfoArray());
}
return null;
}
protected InstanceInfoDocument recoverActivity(Long instanceId, Long activityId, String action, long timeoutInSeconds) throws Exception {
InstanceInfoDocument result = invoke(RECOVER_ACTIVITY, new Object[] {instanceId, activityId, action},
new String[] {Long.class.getName(), Long.class.getName(), String.class.getName()},
timeoutInSeconds);
return result;
}
protected void terminate(Long iid, long timeoutInSeconds) throws Exception {
invoke(TERMINATE, new Long[] { iid }, new String[] { Long.class
.getName() }, timeoutInSeconds);
}
protected void suspend(Long iid, long timeoutInSeconds) throws Exception {
invoke(SUSPEND, new Long[] { iid }, new String[] { Long.class
.getName() }, timeoutInSeconds);
}
protected void resume(Long iid, long timeoutInSeconds) throws Exception {
invoke(RESUME, new Long[] { iid }, new String[] { Long.class
.getName() }, timeoutInSeconds);
}
}