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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
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* If you wish your version of this file to be governed by only the CDDL or
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* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
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* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
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*/
package org.glassfish.admin.mejb;
import java.rmi.RemoteException;
import java.util.HashSet;
import java.util.Set;
import javax.ejb.CreateException;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import javax.management.*;
import javax.management.j2ee.ListenerRegistration;
import org.glassfish.external.amx.AMXGlassfish;
/**
* @ejbHome <{org.glassfish.admin.mejb.MEJBHome}>
* @ejbRemote <{org.glassfish.admin.mejb.MEJB}>
*/
public final class MEJBBean implements SessionBean
{
private static final boolean debug = true;
private static void debug( final String s ) { if ( debug ) { System.out.println(s); } }
private volatile SessionContext ctx;
private final MBeanServer mbeanServer = MEJBUtility.getInstance().getMBeanServer();
private volatile String mDomain = null;
public MEJBBean()
{
}
public void setSessionContext(SessionContext context) {
ctx = context;
}
public void ejbActivate() {
}
public void ejbPassivate() {
}
public void ejbRemove() {
}
public void ejbCreate() throws CreateException {
final ObjectName domainRoot = AMXGlassfish.DEFAULT.bootAMX(mbeanServer);
if ( domainRoot == null )
{
throw new IllegalStateException( "Impossible: DomainRoot is null" );
}
mDomain = domainRoot.getDomain();
}
/**
Restrict access to only JSR 77 MBeans
*/
private Set
restrict( final Set candidates )
{
final Set allowed = new HashSet();
for( final ObjectName candidate : candidates )
{
if ( oneOfOurs(candidate) )
{
allowed.add(candidate);
}
}
return allowed;
}
private boolean oneOfOurs( final ObjectName candidate ) {
return candidate != null &&
candidate.getDomain().equals(mDomain) &&
candidate.getKeyProperty( "j2eeType" ) != null &&
candidate.getKeyProperty( "name" ) != null;
}
private ObjectName bounce(final ObjectName o) throws InstanceNotFoundException
{
if ( ! oneOfOurs(o) )
{
throw new InstanceNotFoundException( "" + o );
}
return o;
}
// javax.management.j2ee.Management implementation starts here
public Set queryNames(ObjectName name, QueryExp query) throws RemoteException {
try {
return restrict( mbeanServer.queryNames(name, query) );
} catch (Exception ex) {
throw new RemoteException(this.toString() + "::queryNames", ex);
}
}
public boolean isRegistered(ObjectName name) throws RemoteException {
try {
return mbeanServer.isRegistered(name);
} catch (Exception ex) {
throw new RemoteException(this.toString() + "::isRegistered", ex);
}
}
public Integer getMBeanCount() throws RemoteException {
try {
final ObjectName pattern = new ObjectName( mDomain + ":*" );
return queryNames( pattern, null ).size();
} catch (Exception ex) {
throw new RemoteException(this.toString() + "::getMBeanCount", ex);
}
}
public MBeanInfo getMBeanInfo(ObjectName name) throws InstanceNotFoundException,
IntrospectionException, ReflectionException, RemoteException {
return mbeanServer.getMBeanInfo( bounce(name) );
}
public Object getAttribute(ObjectName name, String attribute) throws MBeanException,
AttributeNotFoundException, InstanceNotFoundException,
ReflectionException, RemoteException {
//debug( "MEJBBean.getAttribute: " + attribute + " on " + name );
return mbeanServer.getAttribute( bounce(name) , attribute);
}
public AttributeList getAttributes(ObjectName name, String[] attributes)
throws InstanceNotFoundException, ReflectionException, RemoteException {
//debug( "MEJBBean.getAttributes: on " + name );
return mbeanServer.getAttributes( bounce(name), attributes);
}
public void setAttribute(ObjectName name, Attribute attribute)
throws InstanceNotFoundException, AttributeNotFoundException,
InvalidAttributeValueException, MBeanException,
ReflectionException, RemoteException {
mbeanServer.setAttribute( bounce(name), attribute);
}
public AttributeList setAttributes(ObjectName name, AttributeList attributes)
throws InstanceNotFoundException, ReflectionException, RemoteException {
return mbeanServer.setAttributes(name, attributes);
}
public Object invoke(ObjectName name, String operationName, Object[] params, String[] signature)
throws InstanceNotFoundException, MBeanException,
ReflectionException, RemoteException {
return mbeanServer.invoke( bounce(name), operationName, params, signature);
}
/**
* Returns the default domain used for naming the managed object.
* The default domain name is used as the domain part in the ObjectName
* of managed objects if no domain is specified by the user.
*/
public String getDefaultDomain() throws RemoteException {
return mDomain;
}
public ListenerRegistration getListenerRegistry() throws RemoteException {
return MEJBUtility.getInstance().getListenerRegistry();
}
}