/*
* Copyright 2002,2004 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.catalina.mbeans;
import javax.management.Attribute;
import javax.management.AttributeNotFoundException;
import javax.management.InstanceNotFoundException;
import javax.management.MBeanException;
import javax.management.ReflectionException;
import javax.management.RuntimeOperationsException;
import javax.management.modelmbean.InvalidTargetObjectTypeException;
import org.apache.catalina.deploy.ContextResource;
import org.apache.catalina.deploy.NamingResources;
import org.apache.commons.modeler.BaseModelMBean;
/**
* <p>A <strong>ModelMBean</strong> implementation for the
* <code>org.apache.catalina.deploy.ContextResource</code> component.</p>
*
* @author Amy Roh
* @version $Revision: 303032 $ $Date: 2004-07-26 12:04:02 -0400 (Mon, 26 Jul 2004) $
*/
public class ContextResourceMBean extends BaseModelMBean {
// ----------------------------------------------------------- Constructors
/**
* Construct a <code>ModelMBean</code> with default
* <code>ModelMBeanInfo</code> information.
*
* @exception MBeanException if the initializer of an object
* throws an exception
* @exception RuntimeOperationsException if an IllegalArgumentException
* occurs
*/
public ContextResourceMBean()
throws MBeanException, RuntimeOperationsException {
super();
}
// ----------------------------------------------------- Instance Variables
// ------------------------------------------------------------- Attributes
/**
* Obtain and return the value of a specific attribute of this MBean.
*
* @param name Name of the requested attribute
*
* @exception AttributeNotFoundException if this attribute is not
* supported by this MBean
* @exception MBeanException if the initializer of an object
* throws an exception
* @exception ReflectionException if a Java reflection exception
* occurs when invoking the getter
*/
public Object getAttribute(String name)
throws AttributeNotFoundException, MBeanException,
ReflectionException {
// Validate the input parameters
if (name == null)
throw new RuntimeOperationsException
(new IllegalArgumentException("Attribute name is null"),
"Attribute name is null");
ContextResource cr = null;
try {
cr = (ContextResource) getManagedResource();
} catch (InstanceNotFoundException e) {
throw new MBeanException(e);
} catch (InvalidTargetObjectTypeException e) {
throw new MBeanException(e);
}
String value = null;
if ("auth".equals(name)) {
return (cr.getAuth());
} else if ("description".equals(name)) {
return (cr.getDescription());
} else if ("name".equals(name)) {
return (cr.getName());
} else if ("scope".equals(name)) {
return (cr.getScope());
} else if ("type".equals(name)) {
return (cr.getType());
} else {
value = (String) cr.getProperty(name);
if (value == null) {
throw new AttributeNotFoundException
("Cannot find attribute "+name);
}
}
return value;
}
/**
* Set the value of a specific attribute of this MBean.
*
* @param attribute The identification of the attribute to be set
* and the new value
*
* @exception AttributeNotFoundException if this attribute is not
* supported by this MBean
* @exception MBeanException if the initializer of an object
* throws an exception
* @exception ReflectionException if a Java reflection exception
* occurs when invoking the getter
*/
public void setAttribute(Attribute attribute)
throws AttributeNotFoundException, MBeanException,
ReflectionException {
// Validate the input parameters
if (attribute == null)
throw new RuntimeOperationsException
(new IllegalArgumentException("Attribute is null"),
"Attribute is null");
String name = attribute.getName();
Object value = attribute.getValue();
if (name == null)
throw new RuntimeOperationsException
(new IllegalArgumentException("Attribute name is null"),
"Attribute name is null");
ContextResource cr = null;
try {
cr = (ContextResource) getManagedResource();
} catch (InstanceNotFoundException e) {
throw new MBeanException(e);
} catch (InvalidTargetObjectTypeException e) {
throw new MBeanException(e);
}
if ("auth".equals(name)) {
cr.setAuth((String)value);
} else if ("description".equals(name)) {
cr.setDescription((String)value);
} else if ("name".equals(name)) {
cr.setName((String)value);
} else if ("scope".equals(name)) {
cr.setScope((String)value);
} else if ("type".equals(name)) {
cr.setType((String)value);
} else {
cr.setProperty(name, ""+value);
}
// cannot use side-efects. It's removed and added back each time
// there is a modification in a resource.
NamingResources nr = cr.getNamingResources();
nr.removeResource(cr.getName());
nr.addResource(cr);
}
}