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/*
*
* Copyright (c) 2006 The Apache Software Foundation
*
* Licensed 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.qpid.server.management;
import org.apache.qpid.AMQException;
import org.apache.qpid.server.registry.ApplicationRegistry;
import javax.management.JMException;
import javax.management.MalformedObjectNameException;
import javax.management.NotCompliantMBeanException;
import javax.management.ObjectName;
import javax.management.StandardMBean;
/**
* Provides implementation of the boilerplate ManagedObject interface. Most managed objects should find it useful
* to extend this class rather than implementing ManagedObject from scratch.
*
*/
public abstract class DefaultManagedObject extends StandardMBean implements ManagedObject
{
private Class<?> _managementInterface;
private String _typeName;
protected DefaultManagedObject(Class<?> managementInterface, String typeName)
throws NotCompliantMBeanException
{
super(managementInterface);
_managementInterface = managementInterface;
_typeName = typeName;
}
public String getType()
{
return _typeName;
}
public Class<?> getManagementInterface()
{
return _managementInterface;
}
public ManagedObject getParentObject()
{
return null;
}
public void register() throws AMQException
{
try
{
ApplicationRegistry.getInstance().getManagedObjectRegistry().registerObject(this);
}
catch (JMException e)
{
throw new AMQException("Error registering managed object " + this + ": " + e, e);
}
}
public void unregister() throws AMQException
{
try
{
ApplicationRegistry.getInstance().getManagedObjectRegistry().unregisterObject(this);
}
catch (JMException e)
{
throw new AMQException("Error unregistering managed object: " + this + ": " + e, e);
}
}
public String toString()
{
return getObjectInstanceName() + "[" + getType() + "]";
}
/**
* Created the ObjectName as per the JMX Specs
* @return ObjectName
* @throws MalformedObjectNameException
*/
public ObjectName getObjectName()
throws MalformedObjectNameException
{
String name = getObjectInstanceName();
StringBuffer objectName = new StringBuffer(ManagedObject.DOMAIN);
objectName.append(":type=");
objectName.append(getHierarchicalType(this));
objectName.append(",");
objectName.append(getHierarchicalName(this));
objectName.append("name=").append(name);
return new ObjectName(objectName.toString());
}
private String getHierarchicalType(ManagedObject obj)
{
String parentType = null;
if (obj.getParentObject() != null)
{
parentType = getHierarchicalType(obj.getParentObject()).toString();
return parentType + "." + obj.getType();
}
else
return obj.getType();
}
private String getHierarchicalName(ManagedObject obj)
{
String parentName = null;
if (obj.getParentObject() != null)
{
parentName = obj.getParentObject().getType() + "=" +
obj.getParentObject().getObjectInstanceName() + ","+
getHierarchicalName(obj.getParentObject());
return parentName;
}
else
return "";
}
protected static StringBuffer jmxEncode(StringBuffer jmxName, int attrPos)
{
for (int i = attrPos; i < jmxName.length(); i++)
{
if (jmxName.charAt(i) == ',')
{
jmxName.setCharAt(i, ';');
}
else if (jmxName.charAt(i) == ':')
{
jmxName.setCharAt(i, '-');
}
else if (jmxName.charAt(i) == '?' ||
jmxName.charAt(i) == '*' ||
jmxName.charAt(i) == '\\')
{
jmxName.insert(i, '\\');
i++;
}
else if (jmxName.charAt(i) == '\n')
{
jmxName.insert(i, '\\');
i++;
jmxName.setCharAt(i, 'n');
}
}
return jmxName;
}
}
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