/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2000-2010 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:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* 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
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* 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
* holder.
*/
/*
* @(#)MQMBeanReadWrite.java 1.8 06/28/07
*/
package com.sun.messaging.jmq.jmsserver.management.mbeans;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.util.Iterator;
import java.util.List;
import java.util.ArrayList;
import java.util.Vector;
import java.util.Enumeration;
import javax.management.Attribute;
import javax.management.AttributeList;
import javax.management.ObjectName;
import javax.management.DynamicMBean;
import javax.management.MBeanInfo;
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanConstructorInfo;
import javax.management.MBeanParameterInfo;
import javax.management.MBeanOperationInfo;
import javax.management.MBeanNotificationInfo;
import javax.management.AttributeChangeNotification;
import javax.management.ReflectionException;
import javax.management.RuntimeOperationsException;
import javax.management.AttributeNotFoundException;
import javax.management.MBeanException;
import javax.management.InvalidAttributeValueException;
import com.sun.messaging.jmq.util.log.Logger;
import com.sun.messaging.jmq.jmsserver.Globals;
public abstract class MQMBeanReadWrite extends MQMBeanReadOnly {
public MQMBeanReadWrite() {
super();
}
/**
* Sets the value of the specified attribute of the Dynamic MBean.
*/
public void setAttribute(Attribute attribute) throws
AttributeNotFoundException,
InvalidAttributeValueException,
MBeanException,
ReflectionException {
if (attribute == null) {
throw new RuntimeOperationsException(
new IllegalArgumentException(
"MBean "
+ getMBeanName()
+ ": Null attribute passed to setAttribute()"));
}
String name = attribute.getName();
String methodName = "set" + name;
Object value = attribute.getValue();
Method m = null;
checkSettableAttribute(name, value);
try {
/*
* What if value is null ?
*/
Class methodParams[] = { value.getClass() };
m = this.getClass().getMethod(methodName, methodParams);
} catch(NoSuchMethodException noSuchE) {
String tmp = "MBean "
+ getMBeanName()
+ ": Cannot find method "
+ methodName;
throw (new ReflectionException(noSuchE, tmp));
} catch(SecurityException se) {
throw (new ReflectionException(se));
}
try {
Object params[] = { value };
if (m != null) {
m.invoke(this, params);
}
} catch(Exception e) {
throw (new MBeanException(e, e.toString()));
}
}
public void logProblemGettingOldVal(String attr, Exception e) {
logger.log(Logger.ERROR,
getMBeanName()
+ " notification "
+ AttributeChangeNotification.ATTRIBUTE_CHANGE
+ ": encountered problem while getting old value of attribute "
+ attr
+ ": "
+ e);
}
private void checkSettableAttribute(String name, Object value) throws
AttributeNotFoundException,
InvalidAttributeValueException {
MBeanAttributeInfo attrInfo = getAttributeInfo(name);
if (attrInfo == null) {
throw new AttributeNotFoundException("The attribute "
+ name
+ " is not a valid attribute for MBean"
+ getMBeanName());
}
if (!attrInfo.isWritable()) {
throw new AttributeNotFoundException("The attribute "
+ name
+ " is not a settable attribute for MBean"
+ getMBeanName());
}
if (!attrInfo.getType().equals(value.getClass().getName())) {
throw new InvalidAttributeValueException(
"The type of the value used to set the attribute "
+ name
+ " is incorrect ("
+ value.getClass().getName()
+ ").\n"
+ "The expected value type is "
+ attrInfo.getType()
+ ".");
}
}
}