manveen 02/05/04 10:14:15
Added: webapps/admin/WEB-INF/classes/org/apache/webapp/admin/resources
DeleteEnvEntriesAction.java
Log:
Implementation class for delete env entry operation.
Revision Changes Path
1.1
jakarta-tomcat-4.0/webapps/admin/WEB-INF/classes/org/apache/webapp/admin/resources/DeleteEnvEntriesAction.java
Index: DeleteEnvEntriesAction.java
===================================================================
/*
* $Header:
/home/cvs/jakarta-tomcat-4.0/webapps/admin/WEB-INF/classes/org/apache/webapp/admin/resources/DeleteEnvEntriesAction.java,v
1.1 2002/05/04 17:14:15 manveen Exp $
* $Revision: 1.1 $
* $Date: 2002/05/04 17:14:15 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-envEntry documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Struts", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.webapp.admin.resources;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Locale;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import javax.management.Attribute;
import javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
import javax.management.QueryExp;
import javax.management.Query;
import javax.management.ObjectInstance;
import javax.management.ObjectName;
import javax.management.JMException;
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanOperationInfo;
import javax.management.MBeanInfo;
import org.apache.struts.util.MessageResources;
import org.apache.webapp.admin.ApplicationServlet;
/**
* <p>Implementation of <strong>Action</strong> that deletes the
* specified set of env entries.</p>
*
* @author Manveen Kaur
* @version $Revision: 1.1 $ $Date: 2002/05/04 17:14:15 $
* @since 4.1
*/
public final class DeleteEnvEntriesAction extends Action {
// ----------------------------------------------------- Instance Variables
/**
* The MBeanServer we will be interacting with.
*/
private MBeanServer mserver = null;
/**
* The MessageResources we will be retrieving messages from.
*/
private MessageResources resources = null;
// --------------------------------------------------------- Public Methods
/**
* Process the specified HTTP request, and create the corresponding HTTP
* response (or forward to another web component that will create it).
* Return an <code>ActionForward</code> instance describing where and how
* control should be forwarded, or <code>null</code> if the response has
* already been completed.
*
* @param mapping The ActionMapping used to select this instance
* @param actionForm The optional ActionForm bean for this request (if any)
* @param request The HTTP request we are processing
* @param response The HTTP response we are creating
*
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet exception occurs
*/
public ActionForward perform(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
// Look up the components we will be using as needed
if (mserver == null) {
mserver = ((ApplicationServlet) getServlet()).getServer();
}
if (resources == null) {
resources = getServlet().getResources();
}
HttpSession session = request.getSession();
Locale locale = (Locale) session.getAttribute(Action.LOCALE_KEY);
// Has this transaction been cancelled?
if (isCancelled(request)) {
return (mapping.findForward("List EnvEntries Setup"));
}
// Check the transaction token
if (!isTokenValid(request)) {
response.sendError
(HttpServletResponse.SC_BAD_REQUEST,
resources.getMessage(locale, "users.error.token"));
return (null);
}
// Perform any extra validation that is required
EnvEntriesForm envEntriesForm = (EnvEntriesForm) form;
String envEntries[] = envEntriesForm.getEnvEntries();
if (envEntries == null) {
envEntries = new String[0];
}
// Perform "Delete EnvEntry" transactions as required
try {
// Construct the MBean Name for the naming source
ObjectName dname = new ObjectName(ResourceUtils.NAMINGRESOURCES_TYPE);
String signature[] = new String[1];
signature[0] = "java.lang.String";
Object params[] = new String[1];
for (int i = 0; i < envEntries.length; i++) {
ObjectName oname = new ObjectName(envEntries[i]);
params[0] = oname.getKeyProperty("name");
mserver.invoke(dname, "removeEnvironment",
params, signature);
}
} catch (Throwable t) {
getServlet().log
(resources.getMessage(locale, "users.error.invoke",
"removeEnvironment"), t);
response.sendError
(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
resources.getMessage(locale, "users.error.invoke",
"removeEnvironment"));
return (null);
}
// Proceed to the list envEntrys screen
return (mapping.findForward("EnvEntries List Setup"));
}
}
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