File: ConnectorMBean.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.connector.Connector;
import org.apache.tomcat.util.IntrospectionUtils;


/**
 * <p>A <strong>ModelMBean</strong> implementation for the
 * <code>org.apache.coyote.tomcat5.CoyoteConnector</code> component.</p>
 *
 * @author Amy Roh
 *
 */

public class ConnectorMBean extends ClassNameMBean {


    // ----------------------------------------------------------- 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 ConnectorMBean()
        throws MBeanException, RuntimeOperationsException {

        super();

    }


    // ------------------------------------------------------------- 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 {

        Object attribute = null;
        // Validate the input parameters
        if (name == null)
            throw new RuntimeOperationsException(new IllegalArgumentException(
                    "Attribute name is null"), "Attribute name is null");

        Object result = null;
        try {
            Connector connector = (Connector) getManagedResource();
            result = IntrospectionUtils.getProperty(connector, name);
        } catch (InstanceNotFoundException e) {
            throw new MBeanException(e);
        } catch (InvalidTargetObjectTypeException e) {
            throw new MBeanException(e);
        }

        return result;

    }

    
    /**
     * 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");

        try {
            Connector connector = (Connector) getManagedResource();
            IntrospectionUtils.setProperty(connector, name, String.valueOf(value));
        } catch (InstanceNotFoundException e) {
            throw new MBeanException(e);
        } catch (InvalidTargetObjectTypeException e) {
            throw new MBeanException(e);
        }
  
    }


}