saveserviceaction.java

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/*
 * Copyright 2001-2002,2004 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.webapp.admin.service;


import java.net.URLEncoder;
import java.util.Iterator;
import java.util.Locale;
import java.util.Vector;
import java.io.IOException;
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.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.ActionError;
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 org.apache.struts.util.MessageResources;
import org.apache.webapp.admin.ApplicationServlet;
import org.apache.webapp.admin.Lists;
import org.apache.webapp.admin.TomcatTreeBuilder;
import org.apache.webapp.admin.TreeControl;
import org.apache.webapp.admin.TreeControlNode;
import org.apache.webapp.admin.valve.ValveUtil;



/**
 * The <code>Action</code> that completes <em>Add Service</em> and
 * <em>Edit Service</em> transactions.
 *
 * @author Manveen Kaur
 * @author Amy Roh
 * @version $Revision: 303390 $ $Date: 2004-10-18 02:37:56 -0400 (Mon, 18 Oct 2004) $
 */

public final class SaveServiceAction extends Action {


    // ----------------------------------------------------- Instance Variables


    /**
     * Signature for the <code>createStandardEngine</code> operation.
     */
    private String createStandardEngineTypes[] =
    { "java.lang.String",     // parent
      "java.lang.String",     // name
      "java.lang.String",     // defaultHost
    };


    /**
     * Signature for the <code>createStandardService</code> operation.
     */
    private String createStandardServiceTypes[] =
    { "java.lang.String",     // parent
      "java.lang.String",     // name
      "java.lang.String"      // domain
    };


    /**
     * Signature for the <code>createStandardEngineService</code> operation.
     */
    private String createStandardEngineServiceTypes[] =
    { "java.lang.String",     // parent
      "java.lang.String",     // engineName
      "java.lang.String",     // defaultHost
      "java.lang.String"      // serviceName
    };
    
    
    /**
     * Signature for the <code>createUserDatabaseRealm</code> operation.
     */
    private String createUserDatabaseRealmTypes[] =
    { "java.lang.String",     // parent
      "java.lang.String",     // name
    };


    /**
     * The MBeanServer we will be interacting with.
     */
    private MBeanServer mBServer = 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 execute(ActionMapping mapping,
                                 ActionForm form,
                                 HttpServletRequest request,
                                 HttpServletResponse response)
        throws IOException, ServletException {
        
        // Acquire the resources that we need
        HttpSession session = request.getSession();
        Locale locale = getLocale(request);
        MessageResources resources = getResources(request);
        
        // Acquire a reference to the MBeanServer containing our MBeans
        try {
            mBServer = ((ApplicationServlet) getServlet()).getServer();
        } catch (Throwable t) {
            throw new ServletException
            ("Cannot acquire MBeanServer reference", t);
        }
        
        // Identify the requested action
        ServiceForm sform = (ServiceForm) form;
        String adminAction = sform.getAdminAction();
        String sObjectName = sform.getObjectName();
        String eObjectName = sform.getEngineObjectName();
        String serverObjectName = sform.getServerObjectName();
        ObjectName eoname = null;
        ObjectName soname = null;
        // Perform a "Create Service" transaction (if requested)
        if ("Create".equals(adminAction)) {

            String operation = null;
            String values[] = null;

            try {
                // engine name is domain
                String engineName = sform.getEngineName();
                //String domain = (new ObjectName(serverObjectName)).getDomain();
                // Ensure that the requested service name is unique
                ObjectName oname =
                    new ObjectName("*" + TomcatTreeBuilder.SERVICE_TYPE + 
                                ",serviceName="+sform.getServiceName());
                Iterator names = mBServer.queryNames(oname, null).iterator();
                while (names.hasNext()) {       
                    if (mBServer.isRegistered((ObjectName)names.next())) {
                        ActionErrors errors = new ActionErrors();
                        errors.add("serviceName",
                               new ActionError("error.serviceName.exists"));
                        saveErrors(request, errors);
                        return (new ActionForward(mapping.getInput()));