001 package org.apache.hadoop.hdfs.server.namenode;
002
003 import javax.servlet.*;
004 import javax.servlet.http.*;
005 import javax.servlet.jsp.*;
006 import org.apache.hadoop.util.ServletUtil;
007 import org.apache.hadoop.ha.HAServiceProtocol.HAServiceState;
008
009 public final class dfsnodelist_jsp extends org.apache.jasper.runtime.HttpJspBase
010 implements org.apache.jasper.runtime.JspSourceDependent {
011
012
013 //for java.io.Serializable
014 private static final long serialVersionUID = 1L;
015
016 private static java.util.List _jspx_dependants;
017
018 public Object getDependants() {
019 return _jspx_dependants;
020 }
021
022 public void _jspService(HttpServletRequest request, HttpServletResponse response)
023 throws java.io.IOException, ServletException {
024
025 JspFactory _jspxFactory = null;
026 PageContext pageContext = null;
027 HttpSession session = null;
028 ServletContext application = null;
029 ServletConfig config = null;
030 JspWriter out = null;
031 Object page = this;
032 JspWriter _jspx_out = null;
033 PageContext _jspx_page_context = null;
034
035
036 try {
037 _jspxFactory = JspFactory.getDefaultFactory();
038 response.setContentType("text/html; charset=UTF-8");
039 pageContext = _jspxFactory.getPageContext(this, request, response,
040 null, true, 8192, true);
041 _jspx_page_context = pageContext;
042 application = pageContext.getServletContext();
043 config = pageContext.getServletConfig();
044 session = pageContext.getSession();
045 out = pageContext.getOut();
046 _jspx_out = out;
047
048
049 /*
050 * Licensed to the Apache Software Foundation (ASF) under one
051 * or more contributor license agreements. See the NOTICE file
052 * distributed with this work for additional information
053 * regarding copyright ownership. The ASF licenses this file
054 * to you under the Apache License, Version 2.0 (the
055 * "License"); you may not use this file except in compliance
056 * with the License. You may obtain a copy of the License at
057 *
058 * http://www.apache.org/licenses/LICENSE-2.0
059 *
060 * Unless required by applicable law or agreed to in writing, software
061 * distributed under the License is distributed on an "AS IS" BASIS,
062 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
063 * See the License for the specific language governing permissions and
064 * limitations under the License.
065 */
066
067
068 final NamenodeJspHelper.NodeListJsp nodelistjsp = new NamenodeJspHelper.NodeListJsp();
069 NameNode nn = NameNodeHttpServer.getNameNodeFromContext(application);
070 String namenodeRole = nn.getRole().toString();
071 FSNamesystem fsn = nn.getNamesystem();
072 HAServiceState nnHAState = nn.getServiceState();
073 boolean isActive = (nnHAState == HAServiceState.ACTIVE);
074 String namenodeLabel = NamenodeJspHelper.getNameNodeLabel(nn);
075
076 out.write("<!DOCTYPE html>\n<html>\n\n<link rel=\"stylesheet\" type=\"text/css\" href=\"/static/hadoop.css\">\n<title>Hadoop ");
077 out.print(namenodeRole);
078 out.write(" ");
079 out.print(namenodeLabel);
080 out.write("</title>\n \n<body>\n<h1>");
081 out.print(namenodeRole);
082 out.write(' ');
083 out.write('\'');
084 out.print(namenodeLabel);
085 out.write("'</h1>\n");
086 out.print( NamenodeJspHelper.getVersionTable(fsn) );
087 out.write("<br />\n");
088 if (isActive && fsn != null) {
089 out.write("<b><a href=\"/nn_browsedfscontent.jsp\">Browse the filesystem</a></b><br>\n");
090 }
091 out.write("<b><a href=\"/logs/\">");
092 out.print(namenodeRole);
093 out.write(" Logs</a></b><br>\n<b><a href=/dfshealth.jsp> Go back to DFS home</a></b>\n<hr>\n");
094 nodelistjsp.generateNodesList(application, out, request);
095
096 out.println(ServletUtil.htmlFooter());
097
098 } catch (Throwable t) {
099 if (!(t instanceof SkipPageException)){
100 out = _jspx_out;
101 if (out != null && out.getBufferSize() != 0)
102 out.clearBuffer();
103 if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
104 }
105 } finally {
106 if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context);
107 }
108 }
109 }