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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.net.URI;
   22   import javax.portlet.ActionRequest;
   23   import javax.portlet.ActionResponse;
   24   import javax.portlet.PortletException;
   25   import javax.portlet.RenderRequest;
   26   import javax.portlet.RenderResponse;
   27   import org.apache.geronimo.console.MultiPageModel;
   28   import org.apache.geronimo.console.util.PortletManager;
   29   import org.apache.geronimo.gbean.AbstractName;
   30   import org.apache.geronimo.management.StatisticsProvider;
   31   import org.apache.geronimo.management.geronimo.stats.ThreadPoolStats;
   32   import org.apache.geronimo.j2ee.j2eeobjectnames.NameFactory;
   33   
   34   /**
   35    * A handles for the page that gives statistics about a particular thread pool.
   36    *
   37    * @version $Rev: 476061 $ $Date: 2006-11-16 22:36:50 -0800 (Thu, 16 Nov 2006) $
   38    */
   39   public class MonitorScreenHandler extends AbstractThreadHandler {
   40       public MonitorScreenHandler() {
   41           super(MONITOR_MODE, "/WEB-INF/view/threads/monitor.jsp");
   42       }
   43   
   44       public String actionBeforeView(ActionRequest request, ActionResponse response, MultiPageModel model) throws PortletException, IOException {
   45           response.setRenderParameter(ABSTRACT_NAME_PARAMETER, request.getParameter(ABSTRACT_NAME_PARAMETER));
   46           return getMode();
   47       }
   48   
   49       public void renderView(RenderRequest request, RenderResponse response, MultiPageModel model) throws PortletException, IOException {
   50           AbstractName name = new AbstractName(URI.create(request.getParameter(ABSTRACT_NAME_PARAMETER)));
   51           StatisticsProvider pool = (StatisticsProvider) PortletManager.getManagedBean(request, name);
   52           ThreadPoolStats stats = (ThreadPoolStats) pool.getStats();
   53           String[] consumers = stats.getThreadConsumers();
   54           ClientStats[] result = new ClientStats[consumers.length];
   55           for (int i = 0; i < result.length; i++) {
   56               result[i] = new ClientStats(consumers[i], (int)stats.getCountForConsumer(consumers[i]).getCount());
   57           }
   58           request.setAttribute("poolName", name.getName().get(NameFactory.J2EE_NAME));
   59           request.setAttribute("stats", stats);
   60           request.setAttribute("consumers", result);
   61       }
   62   
   63       public String actionAfterView(ActionRequest request, ActionResponse response, MultiPageModel model) throws PortletException, IOException {
   64           return getMode();
   65       }
   66   
   67       public static class ClientStats implements Serializable, Comparable {
   68           private final String name;
   69           private final int threadCount;
   70   
   71           public ClientStats(String name, int threadCount) {
   72               this.name = name;
   73               this.threadCount = threadCount;
   74           }
   75   
   76           public String getName() {
   77               return name;
   78           }
   79   
   80           public int getThreadCount() {
   81               return threadCount;
   82           }
   83   
   84           public int compareTo(Object o) {
   85               ClientStats other = (ClientStats) o;
   86               return name.compareTo(other.name);
   87           }
   88       }
   89   }

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