001: /*
002: * $Header: /home/cvs/jakarta-tomcat-4.0/catalina/src/share/org/apache/catalina/mbeans/ContextEnvironmentMBean.java,v 1.1 2002/06/24 21:11:42 amyroh Exp $
003: * $Revision: 1.1 $
004: * $Date: 2002/06/24 21:11:42 $
005: *
006: * ====================================================================
007: *
008: * The Apache Software License, Version 1.1
009: *
010: * Copyright (c) 2002 The Apache Software Foundation. All rights
011: * reserved.
012: *
013: * Redistribution and use in source and binary forms, with or without
014: * modification, are permitted provided that the following conditions
015: * are met:
016: *
017: * 1. Redistributions of source code must retain the above copyright
018: * notice, this list of conditions and the following disclaimer.
019: *
020: * 2. Redistributions in binary form must reproduce the above copyright
021: * notice, this list of conditions and the following disclaimer in
022: * the documentation and/or other materials provided with the
023: * distribution.
024: *
025: * 3. The end-user documentation included with the redistribution, if
026: * any, must include the following acknowlegement:
027: * "This product includes software developed by the
028: * Apache Software Foundation (http://www.apache.org/)."
029: * Alternately, this acknowlegement may appear in the software itself,
030: * if and wherever such third-party acknowlegements normally appear.
031: *
032: * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
033: * Foundation" must not be used to endorse or promote products derived
034: * from this software without prior written permission. For written
035: * permission, please contact apache@apache.org.
036: *
037: * 5. Products derived from this software may not be called "Apache"
038: * nor may "Apache" appear in their names without prior written
039: * permission of the Apache Group.
040: *
041: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
042: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
043: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
044: * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
045: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
046: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
047: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
048: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
049: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
050: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
051: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
052: * SUCH DAMAGE.
053: * ====================================================================
054: *
055: * This software consists of voluntary contributions made by many
056: * individuals on behalf of the Apache Software Foundation. For more
057: * information on the Apache Software Foundation, please see
058: * <http://www.apache.org/>.
059: *
060: * [Additional notices, if required by prior licensing conditions]
061: *
062: */
063:
064: package org.apache.catalina.mbeans;
065:
066: import java.util.ArrayList;
067: import javax.management.Attribute;
068: import javax.management.AttributeNotFoundException;
069: import javax.management.InstanceNotFoundException;
070: import javax.management.MalformedObjectNameException;
071: import javax.management.MBeanException;
072: import javax.management.ObjectName;
073: import javax.management.ReflectionException;
074: import javax.management.RuntimeOperationsException;
075: import javax.management.modelmbean.InvalidTargetObjectTypeException;
076: import org.apache.catalina.deploy.ContextEnvironment;
077: import org.apache.catalina.deploy.NamingResources;
078: import org.apache.commons.modeler.BaseModelMBean;
079:
080: /**
081: * <p>A <strong>ModelMBean</strong> implementation for the
082: * <code>org.apache.catalina.deploy.ContextEnvironment</code> component.</p>
083: *
084: * @author Amy Roh
085: * @version $Revision: 1.1 $ $Date: 2002/06/24 21:11:42 $
086: */
087:
088: public class ContextEnvironmentMBean extends BaseModelMBean {
089:
090: // ----------------------------------------------------------- Constructors
091:
092: /**
093: * Construct a <code>ModelMBean</code> with default
094: * <code>ModelMBeanInfo</code> information.
095: *
096: * @exception MBeanException if the initializer of an object
097: * throws an exception
098: * @exception RuntimeOperationsException if an IllegalArgumentException
099: * occurs
100: */
101: public ContextEnvironmentMBean() throws MBeanException,
102: RuntimeOperationsException {
103:
104: super ();
105:
106: }
107:
108: // ----------------------------------------------------- Instance Variables
109:
110: // ------------------------------------------------------------- Attributes
111:
112: /**
113: * Set the value of a specific attribute of this MBean.
114: *
115: * @param attribute The identification of the attribute to be set
116: * and the new value
117: *
118: * @exception AttributeNotFoundException if this attribute is not
119: * supported by this MBean
120: * @exception MBeanException if the initializer of an object
121: * throws an exception
122: * @exception ReflectionException if a Java reflection exception
123: * occurs when invoking the getter
124: */
125: public void setAttribute(Attribute attribute)
126: throws AttributeNotFoundException, MBeanException,
127: ReflectionException {
128:
129: super .setAttribute(attribute);
130:
131: ContextEnvironment ce = null;
132: try {
133: ce = (ContextEnvironment) getManagedResource();
134: } catch (InstanceNotFoundException e) {
135: throw new MBeanException(e);
136: } catch (InvalidTargetObjectTypeException e) {
137: throw new MBeanException(e);
138: }
139:
140: // cannot use side-efects. It's removed and added back each time
141: // there is a modification in a resource.
142: NamingResources nr = ce.getNamingResources();
143: nr.removeEnvironment(ce.getName());
144: nr.addEnvironment(ce);
145: }
146:
147: }
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