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    1   /**
    2    *  Licensed to the Apache Software Foundation (ASF) under one or more
    3    *  contributor license agreements.  See the NOTICE file distributed with
    4    *  this work for additional information regarding copyright ownership.
    5    *  The ASF licenses this file to You under the Apache License, Version 2.0
    6    *  (the "License"); you may not use this file except in compliance with
    7    *  the License.  You may obtain a copy of the License at
    8    *
    9    *     http://www.apache.org/licenses/LICENSE-2.0
   10    *
   11    *  Unless required by applicable law or agreed to in writing, software
   12    *  distributed under the License is distributed on an "AS IS" BASIS,
   13    *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   14    *  See the License for the specific language governing permissions and
   15    *  limitations under the License.
   16    */
   17   package org.apache.geronimo.console.threads;
   18   
   19   import java.io.IOException;
   20   import java.io.Serializable;
   21   import java.util.Arrays;
   22   import javax.portlet.ActionRequest;
   23   import javax.portlet.ActionResponse;
   24   import javax.portlet.PortletException;
   25   import javax.portlet.PortletRequest;
   26   import javax.portlet.RenderRequest;
   27   import javax.portlet.RenderResponse;
   28   import org.apache.geronimo.console.MultiPageModel;
   29   import org.apache.geronimo.console.util.PortletManager;
   30   import org.apache.geronimo.gbean.AbstractName;
   31   import org.apache.geronimo.j2ee.j2eeobjectnames.NameFactory;
   32   import org.apache.geronimo.system.threads.ThreadPool;
   33   
   34   /**
   35    * A handles for the front page that lists available thread pools.
   36    *
   37    * @version $Rev: 476061 $ $Date: 2006-11-16 22:36:50 -0800 (Thu, 16 Nov 2006) $
   38    */
   39   public class ListScreenHandler extends AbstractThreadHandler {
   40       public ListScreenHandler() {
   41           super(LIST_MODE, "/WEB-INF/view/threads/list.jsp");
   42       }
   43   
   44       public String actionBeforeView(ActionRequest request, ActionResponse response, MultiPageModel model) throws PortletException, IOException {
   45           return getMode();
   46       }
   47   
   48       public void renderView(RenderRequest request, RenderResponse response, MultiPageModel model) throws PortletException, IOException {
   49           populateExistingList(request);
   50       }
   51   
   52       public String actionAfterView(ActionRequest request, ActionResponse response, MultiPageModel model) throws PortletException, IOException {
   53           return getMode();
   54       }
   55   
   56       private void populateExistingList(PortletRequest renderRequest) {
   57           ThreadPool[] pools = PortletManager.getCurrentServer(renderRequest).getThreadPools();
   58           ThreadPoolSummary[] result = new ThreadPoolSummary[pools.length];
   59           for (int i = 0; i < pools.length; i++) {
   60               result[i] = new ThreadPoolSummary(PortletManager.getNameFor(renderRequest, pools[i]), pools[i].getPoolSize());
   61           }
   62           Arrays.sort(result);
   63           renderRequest.setAttribute("pools", result);
   64       }
   65   
   66       public static class ThreadPoolSummary implements Serializable, Comparable {
   67           private static final long serialVersionUID = -7515061254194067140L;
   68           private final String abstractName;
   69           private final int maxSize;
   70           private final String name;
   71   
   72           public ThreadPoolSummary(AbstractName abstractName, int maxSize) {
   73               this.abstractName = abstractName.toString();
   74               name = (String) abstractName.getName().get(NameFactory.J2EE_NAME);
   75               this.maxSize = maxSize;
   76           }
   77   
   78           public String getAbstractName() {
   79               return abstractName;
   80           }
   81   
   82           public int getPoolSize() {
   83               return maxSize;
   84           }
   85   
   86           public String getName() {
   87               return name;
   88           }
   89   
   90           public int compareTo(Object o) {
   91               ThreadPoolSummary other = (ThreadPoolSummary) o;
   92               return name.compareTo(other.name);
   93           }
   94       }
   95   }

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