/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, 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.jmx.adaptor.control;
import java.beans.IntrospectionException;
import java.beans.PropertyEditor;
import java.beans.PropertyEditorManager;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Set;
import java.util.TreeMap;
import javax.management.Attribute;
import javax.management.AttributeList;
import javax.management.JMException;
import javax.management.MBeanInfo;
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanOperationInfo;
import javax.management.MBeanParameterInfo;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import javax.management.ReflectionException;
import org.jboss.jmx.adaptor.model.DomainData;
import org.jboss.jmx.adaptor.model.MBeanData;
import org.jboss.logging.Logger;
import org.jboss.mx.util.MBeanServerLocator;
import org.jboss.util.Classes;
import org.jboss.util.propertyeditor.PropertyEditors;
/** Utility methods related to the MBeanServer interface
*
* @author Scott.Stark@jboss.org
* @author <a href="mailto:dimitris@jboss.org">Dimitris Andreadis</a>
* @version $Revision: 81038 $
*/
public class Server
{
static Logger log = Logger.getLogger(Server.class);
public static MBeanServer getMBeanServer()
{
return MBeanServerLocator.locateJBoss();
}
public static Iterator getDomainData(String filter) throws JMException
{
MBeanServer server = getMBeanServer();
TreeMap domainData = new TreeMap();
if( server != null )
{
ObjectName filterName = null;
if( filter != null )
filterName = new ObjectName(filter);
Set objectNames = server.queryNames(filterName, null);
Iterator objectNamesIter = objectNames.iterator();
while( objectNamesIter.hasNext() )
{
ObjectName name = (ObjectName) objectNamesIter.next();
MBeanInfo info = server.getMBeanInfo(name);
String domainName = name.getDomain();
MBeanData mbeanData = new MBeanData(name, info);
DomainData data = (DomainData) domainData.get(domainName);
if( data == null )
{
data = new DomainData(domainName);
domainData.put(domainName, data);
}
data.addData(mbeanData);
}
}
Iterator domainDataIter = domainData.values().iterator();
return domainDataIter;
}
public static MBeanData getMBeanData(String name) throws JMException
{
MBeanServer server = getMBeanServer();
ObjectName objName = new ObjectName(name);
MBeanInfo info = server.getMBeanInfo(objName);
MBeanData mbeanData = new MBeanData(objName, info);
return mbeanData;
}
public static Object getMBeanAttributeObject(String name, String attrName)
throws JMException
{
MBeanServer server = getMBeanServer();
ObjectName objName = new ObjectName(name);
Object value = server.getAttribute(objName, attrName);
return value;
}
public static String getMBeanAttribute(String name, String attrName) throws JMException
{
MBeanServer server = getMBeanServer();
ObjectName objName = new ObjectName(name);
String value = null;
try
{
Object attr = server.getAttribute(objName, attrName);
if( attr != null )
value = attr.toString();
}
catch(JMException e)
{
value = e.getMessage();
}
return value;
}
public static AttrResultInfo getMBeanAttributeResultInfo(String name, MBeanAttributeInfo attrInfo)
throws JMException
{
ClassLoader loader = Thread.currentThread().getContextClassLoader();
MBeanServer server = getMBeanServer();
ObjectName objName = new ObjectName(name);
String attrName = attrInfo.getName();
String attrType = attrInfo.getType();
Object value = null;
Throwable throwable = null;
if( attrInfo.isReadable() == true )
{
try
{
value = server.getAttribute(objName, attrName);
}
catch (Throwable t)
{
throwable = t;
}
}
Class typeClass = null;
try
{
typeClass = Classes.getPrimitiveTypeForName(attrType);
if( typeClass == null )
typeClass = loader.loadClass(attrType);
}
catch(ClassNotFoundException ignore)
{
}
PropertyEditor editor = null;
if( typeClass != null )
editor = PropertyEditorManager.findEditor(typeClass);
return new AttrResultInfo(attrName, editor, value, throwable);
}
public static AttributeList setAttributes(String name, HashMap attributes) throws JMException
{
MBeanServer server = getMBeanServer();
ObjectName objName = new ObjectName(name);
MBeanInfo info = server.getMBeanInfo(objName);
MBeanAttributeInfo[] attributesInfo = info.getAttributes();
AttributeList newAttributes = new AttributeList();
for(int a = 0; a < attributesInfo.length; a ++)
{
MBeanAttributeInfo attrInfo = attributesInfo[a];
String attrName = attrInfo.getName();
if( attributes.containsKey(attrName) == false )
continue;
String value = (String) attributes.get(attrName);
if (value.equals("null") && server.getAttribute(objName, attrName) == null) {
log.trace("ignoring 'null' for " + attrName);
continue;
}
String attrType = attrInfo.getType();
Attribute attr = null;
try
{
Object realValue = PropertyEditors.convertValue(value, attrType);
attr = new Attribute(attrName, realValue);
}
catch(ClassNotFoundException e)
{
String s = (attr != null) ? attr.getName() : attrType;
log.trace("Failed to load class for attribute: " + s, e);
throw new ReflectionException(e, "Failed to load class for attribute: " + s);
}
catch(IntrospectionException e)
{
log.trace("Skipped setting attribute: " + attrName +
", cannot find PropertyEditor for type: " + attrType);
continue;
}
server.setAttribute(objName, attr);
newAttributes.add(attr);
}
return newAttributes;
}
public static OpResultInfo invokeOp(String name, int index, String[] args) throws JMException
{
MBeanServer server = getMBeanServer();
ObjectName objName = new ObjectName(name);
MBeanInfo info = server.getMBeanInfo(objName);
MBeanOperationInfo[] opInfo = info.getOperations();
MBeanOperationInfo op = opInfo[index];
MBeanParameterInfo[] paramInfo = op.getSignature();
String[] argTypes = new String[paramInfo.length];
for(int p = 0; p < paramInfo.length; p ++)
argTypes[p] = paramInfo[p].getType();
return invokeOpByName(name, op.getName(), argTypes, args);
}
public static OpResultInfo invokeOpByName(String name, String opName,
String[] argTypes, String[] args)
throws JMException
{
MBeanServer server = getMBeanServer();
ObjectName objName = new ObjectName(name);
int length = argTypes != null ? argTypes.length : 0;
Object[] typedArgs = new Object[length];
for(int p = 0; p < typedArgs.length; p ++)
{
String arg = args[p];
try
{
Object argValue = PropertyEditors.convertValue(arg, argTypes[p]);
typedArgs[p] = argValue;
}
catch(ClassNotFoundException e)
{
log.trace("Failed to load class for arg"+p, e);
throw new ReflectionException(e, "Failed to load class for arg"+p);
}
catch(java.beans.IntrospectionException e)
{
// If the type is not java.lang.Object throw an exception
if( argTypes[p].equals("java.lang.Object") == false )
throw new javax.management.IntrospectionException(
"Failed to find PropertyEditor for type: "+argTypes[p]);
// Just use the String arg
typedArgs[p] = arg;
continue;
}
}
Object opReturn = server.invoke(objName, opName, typedArgs, argTypes);
return new OpResultInfo(opName, argTypes, args, opReturn);
}
}