/*
* JBoss, Home of Professional Open Source.
* Copyright 2010, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.jmx;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import javax.management.MBeanServer;
import javax.management.Notification;
import javax.management.NotificationBroadcaster;
import javax.management.NotificationListener;
import javax.management.ObjectName;
import org.jboss.as.controller.AbstractRuntimeOnlyHandler;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.dmr.ModelNode;
import org.jboss.msc.service.ServiceController;
/**
* A HORRIBLE HORRIBLE HACK. Supports tunneling of JMX over management.
* Notifications are mapped to file polling, since the management
* protocol does not support a push model.
*
* @author Jason T. Greene
*/
public class InvokeMBeanRaw extends AbstractRuntimeOnlyHandler {
private static final String NOTIFICATION_FILE = "notification-file";
private static final String MBEAN_NAME = "mbean-name";
private static final String MBEAN_OPERATION_NAME = "mbean-operation-name";
private static final String SIGNATURE = "signature";
private static final String PARAMETERS = "parameters";
@Override
protected void executeRuntimeStep(OperationContext context, ModelNode operation) throws OperationFailedException {
ServiceController<?> service = context.getServiceRegistry(false).getRequiredService(MBeanServerService.SERVICE_NAME);
MBeanServer server = (MBeanServer) service.getValue();
String name = operation.require(MBEAN_NAME).asString();
String operationName = operation.require(MBEAN_OPERATION_NAME).asString();
ArrayList<String> signatureList = new ArrayList<String>();
if (operation.hasDefined(SIGNATURE)) {
for (ModelNode node : operation.get(SIGNATURE).asList()) {
signatureList.add(node.asString());
}
}
ArrayList<Object> parameterList = new ArrayList<Object>();
if (operation.hasDefined(PARAMETERS)) {
for (ModelNode node : operation.get(PARAMETERS).asList()) {
parameterList.add(getObject(node.asBytes()));
}
}
File file = operation.hasDefined(NOTIFICATION_FILE) ? new File(operation.get(NOTIFICATION_FILE).asString()) : null;
Object result;
FileNotificationListener listener = null;
ObjectName beanName = null;
try {
beanName = ObjectName.getInstance(name);
boolean notifications = server.isInstanceOf(beanName, NotificationBroadcaster.class.getName());
if (notifications && file != null && file.exists()) {
listener = new FileNotificationListener(file);
server.addNotificationListener(beanName, listener, null, null);
}
result = server.invoke(beanName, operationName, parameterList.toArray(), signatureList.toArray(new String[0]));
} catch (Exception e) {
throw new OperationFailedException(e.getMessage(), e, new ModelNode().set(e.getMessage()));
} finally {
if (listener != null) {
try {
server.removeNotificationListener(beanName, listener);
listener.done();
} catch (Exception e) {
}
}
}
context.getResult().set(getBytes(result));
context.completeStep();
}
private static Object getObject(byte[] bytes) throws OperationFailedException {
try {
return new ObjectInputStream(new ByteArrayInputStream(bytes)).readObject();
} catch (Exception e) {
throw new OperationFailedException(new ModelNode().set(e.getMessage()));
}
}
// Yuck!
static byte[] getBytes(Object param) throws OperationFailedException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
ObjectOutputStream oos;
try {
oos = new ObjectOutputStream(out);
oos.writeObject(param);
oos.flush();
return out.toByteArray();
} catch (Exception e) {
throw new OperationFailedException(new ModelNode().set(e.getMessage()));
}
}
private class FileNotificationListener implements NotificationListener {
private ObjectOutputStream oos;
public FileNotificationListener(File file) {
try {
this.oos = new ObjectOutputStream(new FileOutputStream(file));
} catch (Exception e) {
throw new IllegalStateException(e);
}
}
@Override
public void handleNotification(Notification notification, Object handback) {
try {
oos.writeObject(notification);
oos.flush();
} catch (IOException e) {
}
}
public void done() {
try {
oos.close();
} catch (Exception e) {
}
}
}
}