001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.geronimo.console.threads;
018
019 import java.io.IOException;
020 import java.io.Serializable;
021 import java.util.Arrays;
022 import javax.portlet.ActionRequest;
023 import javax.portlet.ActionResponse;
024 import javax.portlet.PortletException;
025 import javax.portlet.PortletRequest;
026 import javax.portlet.RenderRequest;
027 import javax.portlet.RenderResponse;
028 import org.apache.geronimo.console.MultiPageModel;
029 import org.apache.geronimo.console.util.PortletManager;
030 import org.apache.geronimo.gbean.AbstractName;
031 import org.apache.geronimo.j2ee.j2eeobjectnames.NameFactory;
032 import org.apache.geronimo.system.threads.ThreadPool;
033
034 /**
035 * A handles for the front page that lists available thread pools.
036 *
037 * @version $Rev: 706640 $ $Date: 2008-10-21 14:44:05 +0000 (Tue, 21 Oct 2008) $
038 */
039 public class ListScreenHandler extends AbstractThreadHandler {
040 public ListScreenHandler() {
041 super(LIST_MODE, "/WEB-INF/view/threads/list.jsp");
042 }
043
044 public String actionBeforeView(ActionRequest request, ActionResponse response, MultiPageModel model) throws PortletException, IOException {
045 return getMode();
046 }
047
048 public void renderView(RenderRequest request, RenderResponse response, MultiPageModel model) throws PortletException, IOException {
049 populateExistingList(request);
050 }
051
052 public String actionAfterView(ActionRequest request, ActionResponse response, MultiPageModel model) throws PortletException, IOException {
053 return getMode();
054 }
055
056 private void populateExistingList(PortletRequest renderRequest) {
057 ThreadPool[] pools = PortletManager.getCurrentServer(renderRequest).getThreadPools();
058 ThreadPoolSummary[] result = new ThreadPoolSummary[pools.length];
059 for (int i = 0; i < pools.length; i++) {
060 result[i] = new ThreadPoolSummary(PortletManager.getNameFor(renderRequest, pools[i]), pools[i].getPoolSize());
061 }
062 Arrays.sort(result);
063 renderRequest.setAttribute("pools", result);
064 }
065
066 public static class ThreadPoolSummary implements Serializable, Comparable {
067 private static final long serialVersionUID = -7515061254194067140L;
068 private final String abstractName;
069 private final int maxSize;
070 private final String name;
071
072 public ThreadPoolSummary(AbstractName abstractName, int maxSize) {
073 this.abstractName = abstractName.toString();
074 name = (String) abstractName.getName().get(NameFactory.J2EE_NAME);
075 this.maxSize = maxSize;
076 }
077
078 public String getAbstractName() {
079 return abstractName;
080 }
081
082 public int getPoolSize() {
083 return maxSize;
084 }
085
086 public String getName() {
087 return name;
088 }
089
090 public int compareTo(Object o) {
091 ThreadPoolSummary other = (ThreadPoolSummary) o;
092 return name.compareTo(other.name);
093 }
094 }
095 }