275 lines
10 KiB
Java
275 lines
10 KiB
Java
/*
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* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.org.glassfish.gmbal;
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import java.io.IOException;
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import java.util.HashMap;
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import java.util.Map;
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import javax.management.Attribute;
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import javax.management.AttributeList;
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import javax.management.AttributeNotFoundException;
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import javax.management.Descriptor;
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import javax.management.InstanceNotFoundException;
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import javax.management.IntrospectionException;
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import javax.management.InvalidAttributeValueException;
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import javax.management.JMException;
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import javax.management.MBeanException;
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import javax.management.MBeanInfo;
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import javax.management.MBeanServerConnection;
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import javax.management.MalformedObjectNameException;
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import javax.management.ObjectName;
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import javax.management.ReflectionException;
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import javax.management.RuntimeOperationsException;
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import javax.management.modelmbean.ModelMBeanInfo;
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/** This class implements a generic AMXMBeanInterface MBean which is connected to a possibly
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* remote MBeanServerConnection (note that MBeanServer isA MBeanServerConnection,
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* so we can actually create an AMXClientImpl simply by using the MBeanServer
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* from the mom: this is useful for testing).
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* <P>
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* Note that this version of the AMXMBeanInterface API provides a generic get/set API that
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* is identical to DynamicMBean, except that it only throws unchecked exceptions.
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* This is far more convenient in practice than the JMX-standard checked exceptions.
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*
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* @author ken
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*/
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public class AMXClient implements AMXMBeanInterface {
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private static ObjectName makeObjectName( String str ) {
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try {
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return new ObjectName(str);
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} catch (MalformedObjectNameException ex) {
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return null ;
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}
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}
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/** Special object name used to represent a NULL objectName result.
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*/
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public static final ObjectName NULL_OBJECTNAME = makeObjectName(
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"null:type=Null,name=Null" ) ;
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private MBeanServerConnection server ;
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private ObjectName oname ;
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@Override
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public boolean equals( Object obj ) {
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if (this == obj) {
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return true ;
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}
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if (!(obj instanceof AMXClient)) {
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return false ;
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}
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AMXClient other = (AMXClient)obj ;
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return oname.equals( other.oname ) ;
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}
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@Override
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public int hashCode() {
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int hash = 5;
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hash = 47 * hash + (this.oname != null ? this.oname.hashCode() : 0);
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return hash;
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}
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@Override
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public String toString() {
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return "AMXClient[" + oname + "]" ;
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}
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private <T> T fetchAttribute( String name, Class<T> type ) {
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try {
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Object obj = server.getAttribute( oname, name ) ;
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if (NULL_OBJECTNAME.equals( obj )) {
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return null ;
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} else {
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return type.cast( obj ) ;
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}
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} catch (JMException exc) {
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throw new GmbalException( "Exception in fetchAttribute", exc ) ;
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} catch (IOException exc) {
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throw new GmbalException( "Exception in fetchAttribute", exc ) ;
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}
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}
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public AMXClient( MBeanServerConnection server,
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ObjectName oname ) {
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this.server = server ;
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this.oname = oname ;
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}
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private AMXClient makeAMX( ObjectName on ) {
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if (on == null) {
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return null ;
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}
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return new AMXClient( this.server, on ) ;
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}
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public String getName() {
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return fetchAttribute( "Name", String.class ) ;
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}
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public Map<String,?> getMeta() {
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try {
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ModelMBeanInfo mbi = (ModelMBeanInfo) server.getMBeanInfo( oname );
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Descriptor desc = mbi.getMBeanDescriptor() ;
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Map<String,Object> result = new HashMap<String,Object>() ;
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for (String str : desc.getFieldNames()) {
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result.put( str, desc.getFieldValue( str )) ;
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}
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return result ;
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} catch (MBeanException ex) {
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throw new GmbalException( "Exception in getMeta", ex ) ;
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} catch (RuntimeOperationsException ex) {
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throw new GmbalException( "Exception in getMeta", ex ) ;
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} catch (InstanceNotFoundException ex) {
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throw new GmbalException( "Exception in getMeta", ex ) ;
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} catch (IntrospectionException ex) {
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throw new GmbalException( "Exception in getMeta", ex ) ;
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} catch (ReflectionException ex) {
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throw new GmbalException( "Exception in getMeta", ex ) ;
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} catch (IOException ex) {
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throw new GmbalException( "Exception in getMeta", ex ) ;
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}
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}
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public AMXClient getParent() {
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ObjectName res = fetchAttribute( "Parent", ObjectName.class ) ;
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return makeAMX( res ) ;
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}
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public AMXClient[] getChildren() {
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ObjectName[] onames = fetchAttribute( "Children",
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ObjectName[].class ) ;
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return makeAMXArray( onames ) ;
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}
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private AMXClient[] makeAMXArray( ObjectName[] onames ) {
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AMXClient[] result = new AMXClient[onames.length] ;
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int ctr=0 ;
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for (ObjectName on : onames ) {
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result[ctr++] = makeAMX( on ) ;
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}
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return result ;
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}
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public Object getAttribute(String attribute) {
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try {
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return server.getAttribute(oname, attribute);
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} catch (MBeanException ex) {
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throw new GmbalException( "Exception in getAttribute", ex ) ;
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} catch (AttributeNotFoundException ex) {
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throw new GmbalException( "Exception in getAttribute", ex ) ;
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} catch (ReflectionException ex) {
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throw new GmbalException( "Exception in getAttribute", ex ) ;
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} catch (InstanceNotFoundException ex) {
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throw new GmbalException( "Exception in getAttribute", ex ) ;
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} catch (IOException ex) {
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throw new GmbalException( "Exception in getAttribute", ex ) ;
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}
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}
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public void setAttribute(String name, Object value ) {
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Attribute attr = new Attribute( name, value ) ;
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setAttribute( attr ) ;
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}
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public void setAttribute(Attribute attribute) {
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try {
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server.setAttribute(oname, attribute);
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} catch (InstanceNotFoundException ex) {
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throw new GmbalException( "Exception in setAttribute", ex ) ;
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} catch (AttributeNotFoundException ex) {
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throw new GmbalException( "Exception in setAttribute", ex ) ;
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} catch (InvalidAttributeValueException ex) {
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throw new GmbalException( "Exception in setAttribute", ex ) ;
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} catch (MBeanException ex) {
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throw new GmbalException( "Exception in setAttribute", ex ) ;
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} catch (ReflectionException ex) {
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throw new GmbalException( "Exception in setAttribute", ex ) ;
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} catch (IOException ex) {
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throw new GmbalException( "Exception in setAttribute", ex ) ;
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}
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}
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public AttributeList getAttributes(String[] attributes) {
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try {
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return server.getAttributes(oname, attributes);
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} catch (InstanceNotFoundException ex) {
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throw new GmbalException( "Exception in getAttributes", ex ) ;
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} catch (ReflectionException ex) {
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throw new GmbalException( "Exception in getAttributes", ex ) ;
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} catch (IOException ex) {
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throw new GmbalException( "Exception in getAttributes", ex ) ;
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}
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}
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public AttributeList setAttributes(AttributeList attributes) {
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try {
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return server.setAttributes(oname, attributes);
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} catch (InstanceNotFoundException ex) {
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throw new GmbalException( "Exception in setAttributes", ex ) ;
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} catch (ReflectionException ex) {
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throw new GmbalException( "Exception in setAttributes", ex ) ;
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} catch (IOException ex) {
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throw new GmbalException( "Exception in setAttributes", ex ) ;
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}
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}
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public Object invoke(String actionName, Object[] params, String[] signature)
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throws MBeanException, ReflectionException {
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try {
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return server.invoke(oname, actionName, params, signature);
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} catch (InstanceNotFoundException ex) {
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throw new GmbalException( "Exception in invoke", ex ) ;
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} catch (IOException ex) {
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throw new GmbalException( "Exception in invoke", ex ) ;
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}
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}
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public MBeanInfo getMBeanInfo() {
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try {
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return server.getMBeanInfo(oname);
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} catch (InstanceNotFoundException ex) {
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throw new GmbalException( "Exception in invoke", ex ) ;
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} catch (IntrospectionException ex) {
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throw new GmbalException( "Exception in invoke", ex ) ;
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} catch (ReflectionException ex) {
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throw new GmbalException( "Exception in invoke", ex ) ;
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} catch (IOException ex) {
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throw new GmbalException( "Exception in invoke", ex ) ;
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}
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}
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public ObjectName objectName() {
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return oname ;
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}
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}
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