[jboss-cvs] JBossAS SVN: r108096 - in branches/JBPAPP_5_0_0_GA_JBPAPP-5059: tomcat/src/main/org/jboss/web/tomcat/service and 1 other directory.

jboss-cvs-commits at lists.jboss.org jboss-cvs-commits at lists.jboss.org
Thu Sep 9 17:10:10 EDT 2010


Author: dereed
Date: 2010-09-09 17:10:09 -0400 (Thu, 09 Sep 2010)
New Revision: 108096

Added:
   branches/JBPAPP_5_0_0_GA_JBPAPP-5059/testsuite/src/main/org/jboss/test/web/test/StatusServletTestCase.java
   branches/JBPAPP_5_0_0_GA_JBPAPP-5059/tomcat/src/main/org/jboss/web/tomcat/service/StatusTransformer.java
Modified:
   branches/JBPAPP_5_0_0_GA_JBPAPP-5059/tomcat/src/main/org/jboss/web/tomcat/service/StatusServlet.java
Log:
[JBPAPP-5059] Port JBPAPP-3674 to EAP 5.0.0


Added: branches/JBPAPP_5_0_0_GA_JBPAPP-5059/testsuite/src/main/org/jboss/test/web/test/StatusServletTestCase.java
===================================================================
--- branches/JBPAPP_5_0_0_GA_JBPAPP-5059/testsuite/src/main/org/jboss/test/web/test/StatusServletTestCase.java	                        (rev 0)
+++ branches/JBPAPP_5_0_0_GA_JBPAPP-5059/testsuite/src/main/org/jboss/test/web/test/StatusServletTestCase.java	2010-09-09 21:10:09 UTC (rev 108096)
@@ -0,0 +1,68 @@
+/*
+ * JBoss, Home of Professional Open Source.
+ * Copyright 2009, Red Hat Middleware LLC, and individual contributors
+ * as indicated by the @author tags. See the copyright.txt file in the
+ * distribution for a full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.jboss.test.web.test;
+
+import java.net.HttpURLConnection;
+
+import javax.management.MalformedObjectNameException;
+
+import junit.framework.Test;
+
+import org.apache.commons.httpclient.HttpClient;
+import org.apache.commons.httpclient.methods.GetMethod;
+import org.jboss.test.JBossTestCase;
+
+/**
+ * Invokes on the ROOT.war's StatusServlet and checks for 200 responses. This
+ * was written as a test for the https://jira.jboss.org/browse/JBPAPP-3674 
+ * condition.
+ * 
+ * @author Brian Stansberry
+ */
+public class StatusServletTestCase extends JBossTestCase
+{   
+   
+   public static Test suite() throws Exception
+   {
+      return JBossTestCase.getDeploySetup(StatusServletTestCase.class, "http-sr.war");
+   }
+   
+   /**
+    * Create a new StatusServletTestCase.
+    * 
+    * @param name
+    * @throws MalformedObjectNameException 
+    */
+   public StatusServletTestCase(String name) throws MalformedObjectNameException
+   {
+      super(name);
+   }
+
+   public void testStatusServlet() throws Exception
+   {
+      HttpClient httpConn = new HttpClient();
+      String url = "http://" + getServerHost() + ":" + Integer.getInteger("web.port", 8080) + "/status?full=true"; 
+      GetMethod getMethod = new GetMethod(url);
+      int responseCode = httpConn.executeMethod(getMethod);
+      assertEquals("GET " + url + " OK", HttpURLConnection.HTTP_OK, responseCode);
+   }
+}

Modified: branches/JBPAPP_5_0_0_GA_JBPAPP-5059/tomcat/src/main/org/jboss/web/tomcat/service/StatusServlet.java
===================================================================
--- branches/JBPAPP_5_0_0_GA_JBPAPP-5059/tomcat/src/main/org/jboss/web/tomcat/service/StatusServlet.java	2010-09-09 20:25:34 UTC (rev 108095)
+++ branches/JBPAPP_5_0_0_GA_JBPAPP-5059/tomcat/src/main/org/jboss/web/tomcat/service/StatusServlet.java	2010-09-09 21:10:09 UTC (rev 108096)
@@ -40,7 +40,6 @@
 import org.apache.catalina.util.ServerInfo;
 import org.apache.catalina.util.StringManager;
 import org.apache.catalina.manager.Constants;
-import org.apache.catalina.manager.StatusTransformer;
 
 /**
  * This servlet will display a complete status of the HTTP/1.1 connector.

Added: branches/JBPAPP_5_0_0_GA_JBPAPP-5059/tomcat/src/main/org/jboss/web/tomcat/service/StatusTransformer.java
===================================================================
--- branches/JBPAPP_5_0_0_GA_JBPAPP-5059/tomcat/src/main/org/jboss/web/tomcat/service/StatusTransformer.java	                        (rev 0)
+++ branches/JBPAPP_5_0_0_GA_JBPAPP-5059/tomcat/src/main/org/jboss/web/tomcat/service/StatusTransformer.java	2010-09-09 21:10:09 UTC (rev 108096)
@@ -0,0 +1,957 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.jboss.web.tomcat.service;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.lang.reflect.Method;
+import java.text.MessageFormat;
+import java.util.Date;
+import java.util.Enumeration;
+import java.util.Iterator;
+import java.util.Set;
+import java.util.Vector;
+
+import javax.management.AttributeNotFoundException;
+import javax.management.JMException;
+import javax.management.MBeanServer;
+import javax.management.ObjectInstance;
+import javax.management.ObjectName;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.catalina.manager.Constants;
+import org.apache.catalina.util.RequestUtil;
+
+/**
+ * This is a refactoring of the servlet to externalize
+ * the output into a simple class. Although we could
+ * use XSLT, that is unnecessarily complex.
+ *
+ * @author Peter Lin
+ * @version $Revision$ $Date$
+ */
+
+public class StatusTransformer {
+
+
+    // --------------------------------------------------------- Public Methods
+
+
+    public static void setContentType(HttpServletResponse response, 
+                                      int mode) {
+        if (mode == 0){
+            response.setContentType("text/html;charset="+Constants.CHARSET);
+        } else if (mode == 1){
+            response.setContentType("text/xml;charset="+Constants.CHARSET);
+        }
+    }
+
+
+    /**
+     * Process a GET request for the specified resource.
+     *
+     * @param request The servlet request we are processing
+     * @param response The servlet response we are creating
+     *
+     * @exception IOException if an input/output error occurs
+     * @exception ServletException if a servlet-specified error occurs
+     */
+    public static void writeHeader(PrintWriter writer, Object[] args, int mode) {
+        if (mode == 0){
+            // HTML Header Section
+            writer.print(MessageFormat.format
+                    (Constants.HTML_HEADER_SECTION, args));
+        } else if (mode == 1){
+            writer.write(Constants.XML_DECLARATION);
+            writer.write
+                (Constants.XML_STYLE);
+            writer.write("<status>");
+        }
+    }
+
+
+    /**
+     * Write the header body. XML output doesn't bother
+     * to output this stuff, since it's just title.
+     * 
+     * @param writer The output writer
+     * @param args What to write
+     * @param mode 0 means write 
+     */
+    public static void writeBody(PrintWriter writer, Object[] args, int mode) {
+        if (mode == 0){
+            writer.print(MessageFormat.format
+                    (Constants.BODY_HEADER_SECTION, args));
+        }
+    }
+
+
+    /**
+     * Write the manager webapp information.
+     * 
+     * @param writer The output writer
+     * @param args What to write
+     * @param mode 0 means write
+     */
+    public static void writeManager1(PrintWriter writer, Object[] args, 
+                                    int mode) {
+        if (mode == 0){
+            writer.print(MessageFormat.format(Constants.MANAGER_STATUS_SECTION1, args));
+        }
+    }
+
+
+    /**
+     * Write the manager webapp information.
+     * 
+     * @param writer The output writer
+     * @param args What to write
+     * @param mode 0 means write
+     */
+    public static void writeManager2(PrintWriter writer, Object[] args, 
+                                    int mode) {
+        if (mode == 0){
+            writer.print(MessageFormat.format(Constants.MANAGER_STATUS_SECTION2, args));
+        }
+    }
+
+
+    public static void writePageHeading(PrintWriter writer, Object[] args, 
+                                        int mode) {
+        if (mode == 0){
+            writer.print(MessageFormat.format
+                         (Constants.SERVER_HEADER_SECTION, args));
+        }
+    }
+
+
+    public static void writeServerInfo(PrintWriter writer, Object[] args, 
+                                       int mode){
+        if (mode == 0){
+            writer.print(MessageFormat.format(Constants.SERVER_ROW_SECTION, args));
+        }
+    }
+
+
+    /**
+     * 
+     */
+    public static void writeFooter(PrintWriter writer, int mode) {
+        if (mode == 0){
+            // HTML Tail Section
+            writer.print(Constants.HTML_TAIL_SECTION);
+        } else if (mode == 1){
+            writer.write("</status>");
+        }
+    }
+
+
+    /**
+     * Write the OS state. Mode 0 will generate HTML.
+     * Mode 1 will generate XML.
+     */
+    public static void writeOSState(PrintWriter writer, int mode) {
+        long[] result = new long[16];
+        boolean ok = false;
+        try {
+            String methodName = "info";
+            Class paramTypes[] = new Class[1];
+            paramTypes[0] = result.getClass();
+            Object paramValues[] = new Object[1];
+            paramValues[0] = result;
+            Method method = Class.forName("org.apache.tomcat.jni.OS")
+                .getMethod(methodName, paramTypes);
+            method.invoke(null, paramValues);
+            ok = true;
+        } catch (Throwable t) {
+            // Ignore
+        }
+        
+        if (ok) {
+            if (mode == 0){
+                writer.print("<h3>OS</h3>");
+
+                writer.print("<p>");
+                writer.print(" <strong>Physical memory:</strong> ");
+                writer.print(formatSize(new Long(result[0]), true));
+                writer.print("<br><strong>Available memory:</strong> ");
+                writer.print(formatSize(new Long(result[1]), true));
+                writer.print("<br><strong>Total page file:</strong> ");
+                writer.print(formatSize(new Long(result[2]), true));
+                writer.print("<br><strong>Free page file:</strong> ");
+                writer.print(formatSize(new Long(result[3]), true));
+                writer.print("<br><strong>Memory load:</strong> ");
+                writer.print(new Long(result[6]));
+                writer.print("<br><strong>Process kernel time:</strong> ");
+                writer.print(formatTime(new Long(result[11] / 1000), true));
+                writer.print("<br><strong>Process user time:</strong> ");
+                writer.print(formatTime(new Long(result[12] / 1000), true));
+                writer.print("</p>");
+            } else if (mode == 1){
+            }
+        }
+        
+    }
+    
+    
+    /**
+     * Write the VM state. Mode 0 will generate HTML.
+     * Mode 1 will generate XML.
+     */
+    public static void writeVMState(PrintWriter writer, int mode)
+        throws Exception {
+
+        if (mode == 0){
+            writer.print("<h3>JVM</h3>");
+
+            writer.print("<p>");
+            writer.print(" <strong>Free memory:</strong> ");
+            writer.print(formatSize
+                         (new Long(Runtime.getRuntime().freeMemory()), true));
+            writer.print(" <br><strong>Total memory:</strong> ");
+            writer.print(formatSize
+                         (new Long(Runtime.getRuntime().totalMemory()), true));
+            writer.print(" <br><strong>Max memory:</strong> ");
+            writer.print(formatSize
+                         (new Long(Runtime.getRuntime().maxMemory()), true));
+            writer.print("</p>");
+        } else if (mode == 1){
+            writer.write("<jvm>");
+
+            writer.write("<memory");
+            writer.write(" free='" + Runtime.getRuntime().freeMemory() + "'");
+            writer.write(" total='" + Runtime.getRuntime().totalMemory() + "'");
+            writer.write(" max='" + Runtime.getRuntime().maxMemory() + "'/>");
+
+            writer.write("</jvm>");
+        }
+
+    }
+
+
+    /**
+     * Write connector state.
+     */
+    public static void writeConnectorState(PrintWriter writer, 
+                                           ObjectName tpName, String name,
+                                           MBeanServer mBeanServer,
+                                           Vector globalRequestProcessors,
+                                           Vector requestProcessors, int mode)
+        throws Exception {
+
+        if (mode == 0) {
+            writer.print("<h3>");
+            writer.print(name);
+            writer.print("</h3>");
+
+            writer.print("<p>");
+            writer.print(" <strong>Max threads:</strong> ");
+            writer.print(getAttribute(mBeanServer, tpName, "maxThreads"));
+            writer.print(" <br><strong>Current thread count:</strong> ");
+            writer.print(getAttribute(mBeanServer, tpName, "currentThreadCount"));
+            writer.print(" <br><strong>Current thread busy:</strong> ");
+            writer.print(getAttribute(mBeanServer, tpName, "currentThreadsBusy"));
+            try {
+                Object value = getAttribute(mBeanServer, tpName, "keepAliveCount");
+                writer.print(" <br><strong>Keeped alive sockets count:</strong> ");
+                writer.print(value);
+            } catch (Exception e) {
+                // Ignore
+            }
+            
+            ObjectName grpName = null;
+
+            Enumeration enumeration = globalRequestProcessors.elements();
+            while (enumeration.hasMoreElements()) {
+                ObjectName objectName = (ObjectName) enumeration.nextElement();
+                if (name.equals(objectName.getKeyProperty("name"))) {
+                    grpName = objectName;
+                }
+            }
+
+            if (grpName == null) {
+                return;
+            }
+
+            writer.print(" <br><strong>Max processing time:</strong> ");
+            writer.print(formatTime(getAttribute(mBeanServer, grpName, "maxTime"), false));
+            writer.print(" <br><strong>Processing time:</strong> ");
+            writer.print(formatTime(getAttribute(mBeanServer, grpName, "processingTime"), true));
+            writer.print(" <br><strong>Request count:</strong> ");
+            writer.print(getAttribute(mBeanServer, grpName, "requestCount"));
+            writer.print(" <br><strong>Error count:</strong> ");
+            writer.print(getAttribute(mBeanServer, grpName, "errorCount"));
+            writer.print(" <br><strong>Bytes received:</strong> ");
+            writer.print(formatSize(getAttribute(mBeanServer, grpName, "bytesReceived"), true));
+            writer.print(" <br><strong>Bytes sent:</strong> ");
+            writer.print(formatSize(getAttribute(mBeanServer, grpName, "bytesSent"), true));
+            writer.print("</p>");
+
+            writer.print("<table width=\"100%\" cellspacing=\"0\" class=\"tableStyle\">");
+            writer.print("<thead><th colspan=\"7\">");
+            writer.print(name);
+            writer.print("</th></thead>");
+            writer.print("<tr class=\"UnsortableTableHeader\"><td>Stage</td><td>Time</td><td>B Sent</td><td>B Received</td><td>Client</td><td>V. Host</td><td>Request</td></tr><tbody>");
+
+            enumeration = requestProcessors.elements();
+            boolean isHighlighted = false;
+            String highlightStyle = null;
+            while (enumeration.hasMoreElements()) {
+                isHighlighted = !isHighlighted;
+                if(isHighlighted) {
+                    highlightStyle = "oddRow";
+                } else {
+                    highlightStyle = "evenRow";
+                }
+                ObjectName objectName = (ObjectName) enumeration.nextElement();
+                if (name.equals(objectName.getKeyProperty("worker"))) {
+                    writer.print("<tr class=\"");
+                    writer.print(highlightStyle);
+                    writer.print("\">");
+                    writeProcessorState(writer, objectName, mBeanServer, mode);
+                    writer.print("</tr>");
+                }
+            }
+
+            writer.print("<caption align=\"bottom\">P: Parse and prepare request S: Service F: Finishing R: Ready K: Keepalive</caption></tbody></table>");
+
+        } else if (mode == 1){
+            writer.write("<connector name='" + name + "'>");
+
+            writer.write("<threadInfo ");
+            writer.write(" maxThreads=\"" + getAttribute(mBeanServer, tpName, "maxThreads") + "\"");
+            writer.write(" currentThreadCount=\"" + getAttribute(mBeanServer, tpName, "currentThreadCount") + "\"");
+            writer.write(" currentThreadsBusy=\"" + getAttribute(mBeanServer, tpName, "currentThreadsBusy") + "\"");
+            writer.write(" />");
+
+            ObjectName grpName = null;
+
+            Enumeration enumeration = globalRequestProcessors.elements();
+            while (enumeration.hasMoreElements()) {
+                ObjectName objectName = (ObjectName) enumeration.nextElement();
+                if (name.equals(objectName.getKeyProperty("name"))) {
+                    grpName = objectName;
+                }
+            }
+
+            if (grpName != null) {
+
+                writer.write("<requestInfo ");
+                writer.write(" maxTime=\"" + getAttribute(mBeanServer, grpName, "maxTime") + "\"");
+                writer.write(" processingTime=\"" + getAttribute(mBeanServer, grpName, "processingTime") + "\"");
+                writer.write(" requestCount=\"" + getAttribute(mBeanServer, grpName, "requestCount") + "\"");
+                writer.write(" errorCount=\"" + getAttribute(mBeanServer, grpName, "errorCount") + "\"");
+                writer.write(" bytesReceived=\"" + getAttribute(mBeanServer, grpName, "bytesReceived") + "\"");
+                writer.write(" bytesSent=\"" + getAttribute(mBeanServer, grpName, "bytesSent") + "\"");
+                writer.write(" />");
+
+                writer.write("<workers>");
+                enumeration = requestProcessors.elements();
+                while (enumeration.hasMoreElements()) {
+                    ObjectName objectName = (ObjectName) enumeration.nextElement();
+                    if (name.equals(objectName.getKeyProperty("worker"))) {
+                        writeProcessorState(writer, objectName, mBeanServer, mode);
+                    }
+                }
+                writer.write("</workers>");
+            }
+
+            writer.write("</connector>");
+        }
+
+    }
+
+
+    /**
+     * Write processor state.
+     */
+    protected static void writeProcessorState(PrintWriter writer, 
+                                              ObjectName pName,
+                                              MBeanServer mBeanServer, 
+                                              int mode)
+        throws Exception {
+
+        Integer stageValue = 
+            (Integer) getAttribute(mBeanServer, pName, "stage");
+        int stage = stageValue.intValue();
+        boolean fullStatus = true;
+        boolean showRequest = true;
+        String stageStr = null;
+
+        switch (stage) {
+
+        case (1/*org.apache.coyote.Constants.STAGE_PARSE*/):
+            stageStr = "P";
+            fullStatus = false;
+            break;
+        case (2/*org.apache.coyote.Constants.STAGE_PREPARE*/):
+            stageStr = "P";
+            fullStatus = false;
+            break;
+        case (3/*org.apache.coyote.Constants.STAGE_SERVICE*/):
+            stageStr = "S";
+            break;
+        case (4/*org.apache.coyote.Constants.STAGE_ENDINPUT*/):
+            stageStr = "F";
+            break;
+        case (5/*org.apache.coyote.Constants.STAGE_ENDOUTPUT*/):
+            stageStr = "F";
+            break;
+        case (7/*org.apache.coyote.Constants.STAGE_ENDED*/):
+            stageStr = "R";
+            fullStatus = false;
+            break;
+        case (6/*org.apache.coyote.Constants.STAGE_KEEPALIVE*/):
+            stageStr = "K";
+            fullStatus = true;
+            showRequest = false;
+            break;
+        case (0/*org.apache.coyote.Constants.STAGE_NEW*/):
+            stageStr = "R";
+            fullStatus = false;
+            break;
+        default:
+            // Unknown stage
+            stageStr = "?";
+            fullStatus = false;
+
+        }
+
+        if (mode == 0) {
+            writer.write("<td class=\"first\"><strong>");
+            writer.write(stageStr);
+            writer.write("</strong></td>");
+
+            if (fullStatus) {
+                writer.write("<td>");
+                writer.print(formatTime(getAttribute(mBeanServer, pName, "requestProcessingTime"), false));
+                writer.write("</td>");
+                writer.write("<td>");
+                if (showRequest) {
+                    writer.print(formatSize(getAttribute(mBeanServer, pName, "requestBytesSent"), false));
+                } else {
+                    writer.write("?");
+                }
+                writer.write("</td>");
+                writer.write("<td>");
+                if (showRequest) {
+                    writer.print(formatSize(getAttribute(mBeanServer, pName, "requestBytesReceived"), 
+                                            false));
+                } else {
+                    writer.write("?");
+                }
+                writer.write("</td>");
+                writer.write("<td>");
+                writer.print(filter(getAttribute(mBeanServer, pName, "remoteAddr")));
+                writer.write("</td>");
+                writer.write("<td nowrap>");
+                writer.write(filter(getAttribute(mBeanServer, pName, "virtualHost")));
+                writer.write("</td>");
+                writer.write("<td nowrap>");
+                if (showRequest) {
+                    writer.write(filter(getAttribute(mBeanServer, pName, "method")));
+                    writer.write(" ");
+                    writer.write(filter(getAttribute(mBeanServer, pName, "currentUri")));
+                    String queryString = (String) getAttribute(mBeanServer, pName, "currentQueryString");
+                    if ((queryString != null) && (!queryString.equals(""))) {
+                        writer.write("?");
+                        writer.print(RequestUtil.filter(queryString));
+                    }
+                    writer.write(" ");
+                    writer.write(filter(getAttribute(mBeanServer, pName, "protocol")));
+                } else {
+                    writer.write("?");
+                }
+                writer.write("</td>");
+            } else {
+                writer.write("<td>?</td><td>?</td><td>?</td><td>?</td><td>?</td><td>?</td>");
+            }
+        } else if (mode == 1){
+            writer.write("<worker ");
+            writer.write(" stage=\"" + stageStr + "\"");
+
+            if (fullStatus) {
+                writer.write(" requestProcessingTime=\"" 
+                             + getAttribute(mBeanServer, pName, "requestProcessingTime") + "\"");
+                writer.write(" requestBytesSent=\"");
+                if (showRequest) {
+                    writer.write("" + getAttribute(mBeanServer, pName, "requestBytesSent"));
+                } else {
+                    writer.write("0");
+                }
+                writer.write("\"");
+                writer.write(" requestBytesReceived=\"");
+                if (showRequest) {
+                    writer.write("" + getAttribute(mBeanServer, pName, "requestBytesReceived"));
+                } else {
+                    writer.write("0");
+                }
+                writer.write("\"");
+                writer.write(" remoteAddr=\"" 
+                             + filter(getAttribute(mBeanServer, pName, "remoteAddr")) + "\"");
+                writer.write(" virtualHost=\"" 
+                             + filter(getAttribute(mBeanServer, pName, "virtualHost")) + "\"");
+
+                if (showRequest) {
+                    writer.write(" method=\"" 
+                                 + filter(getAttribute(mBeanServer, pName, "method")) + "\"");
+                    writer.write(" currentUri=\"" 
+                                 + filter(getAttribute(mBeanServer, pName, "currentUri")) + "\"");
+
+                    String queryString = (String) getAttribute(mBeanServer, pName, "currentQueryString");
+                    if ((queryString != null) && (!queryString.equals(""))) {
+                        writer.write(" currentQueryString=\"" 
+                                     + RequestUtil.filter(queryString) + "\"");
+                    } else {
+                        writer.write(" currentQueryString=\"&#63;\"");
+                    }
+                    writer.write(" protocol=\"" 
+                                 + filter(getAttribute(mBeanServer, pName, "protocol")) + "\"");
+                } else {
+                    writer.write(" method=\"&#63;\"");
+                    writer.write(" currentUri=\"&#63;\"");
+                    writer.write(" currentQueryString=\"&#63;\"");
+                    writer.write(" protocol=\"&#63;\"");
+                }
+            } else {
+                writer.write(" requestProcessingTime=\"0\"");
+                writer.write(" requestBytesSent=\"0\"");
+                writer.write(" requestBytesRecieved=\"0\"");
+                writer.write(" remoteAddr=\"&#63;\"");
+                writer.write(" virtualHost=\"&#63;\"");
+                writer.write(" method=\"&#63;\"");
+                writer.write(" currentUri=\"&#63;\"");
+                writer.write(" currentQueryString=\"&#63;\"");
+                writer.write(" protocol=\"&#63;\"");
+            }
+            writer.write(" />");
+        }
+
+    }
+
+
+    /**
+     * Write applications state.
+     */
+    public static void writeDetailedState(PrintWriter writer,
+                                          MBeanServer mBeanServer, int mode)
+        throws Exception {
+
+        if (mode == 0){
+            ObjectName queryHosts = new ObjectName("*:j2eeType=WebModule,*");
+            Set hostsON = mBeanServer.queryNames(queryHosts, null);
+
+            // Webapp list
+            int count = 0;
+            Iterator iterator = hostsON.iterator();
+            while (iterator.hasNext()) {
+                ObjectName contextON = (ObjectName) iterator.next();
+                writer.print("<a name=\"" + (count++) + ".0\">");
+                writeContext(writer, contextON, mBeanServer, mode);
+            }
+
+        } else if (mode == 1){
+            // for now we don't write out the Detailed state in XML
+        }
+
+    }
+
+
+    /**
+     * Write applications state.
+     */
+    public static void writeAppList(PrintWriter writer,
+                                          MBeanServer mBeanServer, int mode)
+        throws Exception {
+
+        if (mode == 0){
+            ObjectName queryHosts = new ObjectName("*:j2eeType=WebModule,*");
+            Set hostsON = mBeanServer.queryNames(queryHosts, null);
+
+            // Navigation menu
+            writer.print("<dt>Application list</dt>");
+
+            int count = 0;
+            Iterator iterator = hostsON.iterator();
+            while (iterator.hasNext()) {
+                writer.print("<dd>");
+                ObjectName contextON = (ObjectName) iterator.next();
+                String webModuleName = contextON.getKeyProperty("name");
+                if (webModuleName.startsWith("//")) {
+                    webModuleName = webModuleName.substring(2);
+                }
+                int slash = webModuleName.indexOf("/");
+                if (slash == -1) {
+                    count++;
+                    continue;
+                }
+
+                writer.print("<a href=\"#" + (count++) + ".0\">");
+                writer.print(webModuleName);
+                writer.print("</a>");
+                writer.print("</dd>");
+            }
+
+        } else if (mode == 1){
+            // for now we don't write out the Detailed state in XML
+        }
+
+    }
+
+
+    /**
+     * Write context state.
+     */
+    protected static void writeContext(PrintWriter writer, 
+                                       ObjectName objectName,
+                                       MBeanServer mBeanServer, int mode)
+        throws Exception {
+
+        if (mode == 0){
+            String webModuleName = objectName.getKeyProperty("name");
+            String name = webModuleName;
+            if (name == null) {
+                return;
+            }
+            
+            String hostName = null;
+            String contextName = null;
+            if (name.startsWith("//")) {
+                name = name.substring(2);
+            }
+            int slash = name.indexOf("/");
+            if (slash != -1) {
+                hostName = name.substring(0, slash);
+                contextName = name.substring(slash);
+            } else {
+                return;
+            }
+
+            ObjectName queryManager = new ObjectName
+                (objectName.getDomain() + ":type=Manager,path=" + contextName 
+                 + ",host=" + hostName + ",*");
+            Set managersON = mBeanServer.queryNames(queryManager, null);
+            ObjectName managerON = null;
+            Iterator iterator2 = managersON.iterator();
+            while (iterator2.hasNext()) {
+                managerON = (ObjectName) iterator2.next();
+            }
+
+            ObjectName queryJspMonitor = new ObjectName
+                (objectName.getDomain() + ":type=JspMonitor,WebModule=" +
+                 webModuleName + ",*");
+            Set jspMonitorONs = mBeanServer.queryNames(queryJspMonitor, null);
+
+            // Special case for the root context
+            if (contextName.equals("/")) {
+                contextName = "";
+            }
+
+            writer.print("<h3>");
+            writer.print(name);
+            writer.print("</h3>");
+            writer.print("</a>");
+
+            writer.print("<p>");
+            Object startTime = getAttribute(mBeanServer, objectName,
+                                                        "startTime");
+            writer.print(" <strong>Start time:</strong> " +
+                         new Date(((Long) startTime).longValue()));
+            writer.print(" <br><strong>Startup time:</strong> ");
+            writer.print(formatTime(getAttribute(mBeanServer, objectName, "startupTime"), false));
+            writer.print(" <br><strong>TLD scan time:</strong> ");
+            writer.print(formatTime(getAttribute(mBeanServer, objectName, "tldScanTime"), false));
+            if (managerON != null) {
+                writeManager(writer, managerON, mBeanServer, mode);
+            }
+            if (jspMonitorONs != null) {
+                writeJspMonitor(writer, jspMonitorONs, mBeanServer, mode);
+            }
+            writer.print("</p>");
+
+            String onStr = objectName.getDomain() 
+                + ":j2eeType=Servlet,WebModule=" + webModuleName + ",*";
+            ObjectName servletObjectName = new ObjectName(onStr);
+            Set set = mBeanServer.queryMBeans(servletObjectName, null);
+            Iterator iterator = set.iterator();
+            while (iterator.hasNext()) {
+                ObjectInstance oi = (ObjectInstance) iterator.next();
+                writeWrapper(writer, oi.getObjectName(), mBeanServer, mode);
+            }
+
+        } else if (mode == 1){
+            // for now we don't write out the context in XML
+        }
+
+    }
+
+
+    /**
+     * Write detailed information about a manager.
+     */
+    public static void writeManager(PrintWriter writer, ObjectName objectName,
+                                    MBeanServer mBeanServer, int mode)
+        throws Exception {
+
+        if (mode == 0) {
+            writer.print(" <br><strong>Active sessions:</strong> ");
+            writer.print(getAttribute(mBeanServer, objectName, "activeSessions"));
+            writer.print(" <br><strong>Session count:</strong> ");
+            writer.print(getAttribute(mBeanServer, objectName, "sessionCounter"));
+            writer.print(" <br><strong>Max active sessions:</strong> ");
+            writer.print(getAttribute(mBeanServer, objectName, "maxActive"));
+            writer.print(" <br><strong>Rejected session creations:</strong> ");
+            writer.print(getAttribute(mBeanServer, objectName, "rejectedSessions"));
+            writer.print(" <br><strong>Expired sessions:</strong> ");
+            writer.print(getAttribute(mBeanServer, objectName, "expiredSessions"));
+            writer.print(" <br><strong>Longest session alive time:</strong> ");
+            writer.print(formatSeconds(getAttribute(mBeanServer, 
+                                                    objectName,
+                                                    "sessionMaxAliveTime")));
+            writer.print(" <br><strong>Average session alive time:</strong> ");
+            writer.print(formatSeconds(getAttribute(mBeanServer, 
+                                                    objectName,
+                                                    "sessionAverageAliveTime")));
+            writer.print(" <br><strong>Processing time:</strong> ");
+            writer.print(formatTime(getAttribute(mBeanServer, objectName, "processingTime"), false));
+        } else if (mode == 1) {
+            // for now we don't write out the wrapper details
+        }
+
+    }
+
+
+    /**
+     * Write JSP monitoring information.
+     */
+    public static void writeJspMonitor(PrintWriter writer,
+                                       Set jspMonitorONs,
+                                       MBeanServer mBeanServer,
+                                       int mode)
+            throws Exception {
+
+        int jspCount = 0;
+        int jspReloadCount = 0;
+
+        Iterator iter = jspMonitorONs.iterator();
+        while (iter.hasNext()) {
+            ObjectName jspMonitorON = (ObjectName) iter.next();
+            Object obj = getAttribute(mBeanServer, jspMonitorON, "jspCount");
+            jspCount += ((Integer) obj).intValue();
+            obj = getAttribute(mBeanServer, jspMonitorON, "jspReloadCount");
+            jspReloadCount += ((Integer) obj).intValue();
+        }
+
+        if (mode == 0) {
+            writer.print(" <br><strong>JSPs loaded:</strong> ");
+            writer.print(jspCount);
+            writer.print(" <br><strong>JSPs reloaded:</strong> ");
+            writer.print(jspReloadCount);
+        } else if (mode == 1) {
+            // for now we don't write out anything
+        }
+    }
+
+
+    /**
+     * Write detailed information about a wrapper.
+     */
+    public static void writeWrapper(PrintWriter writer, ObjectName objectName,
+                                    MBeanServer mBeanServer, int mode)
+        throws Exception {
+
+        if (mode == 0) {
+            String servletName = objectName.getKeyProperty("name");
+            
+            String[] mappings = (String[]) 
+                mBeanServer.invoke(objectName, "findMappings", null, null);
+            
+            writer.print("<h2>");
+            writer.print(servletName);
+            if ((mappings != null) && (mappings.length > 0)) {
+                writer.print(" [ ");
+                for (int i = 0; i < mappings.length; i++) {
+                    writer.print(mappings[i]);
+                    if (i < mappings.length - 1) {
+                        writer.print(" , ");
+                    }
+                }
+                writer.print(" ] ");
+            }
+            writer.print("</h2>");
+            
+            writer.print("<p>");
+            writer.print(" <strong>Processing time:</strong> ");
+            writer.print(formatTime(getAttribute(mBeanServer, objectName, "processingTime"), true));
+            writer.print(" <br><strong>Max time:</strong> ");
+            writer.print(formatTime(getAttribute(mBeanServer, objectName, "maxTime"), false));
+            writer.print(" <br><strong>Request count:</strong> ");
+            writer.print(getAttribute(mBeanServer, objectName, "requestCount"));
+            writer.print(" <br><strong>Error count:</strong> ");
+            writer.print(getAttribute(mBeanServer, objectName, "errorCount"));
+            writer.print(" <br><strong>Load time:</strong> ");
+            writer.print(formatTime(getAttribute(mBeanServer, objectName, "loadTime"), false));
+            writer.print(" <br><strong>Classloading time:</strong> ");
+            writer.print(formatTime(getAttribute(mBeanServer, objectName, "classLoadTime"), false));
+            writer.print("</p>");
+        } else if (mode == 1){
+            // for now we don't write out the wrapper details
+        }
+
+    }
+
+
+    /**
+     * Filter the specified message string for characters that are sensitive
+     * in HTML.  This avoids potential attacks caused by including JavaScript
+     * codes in the request URL that is often reported in error messages.
+     *
+     * @param obj The message string to be filtered
+     */
+    public static String filter(Object obj) {
+
+        if (obj == null)
+            return ("?");
+        String message = obj.toString();
+
+        char content[] = new char[message.length()];
+        message.getChars(0, message.length(), content, 0);
+        StringBuilder result = new StringBuilder(content.length + 50);
+        for (int i = 0; i < content.length; i++) {
+            switch (content[i]) {
+            case '<':
+                result.append("&lt;");
+                break;
+            case '>':
+                result.append("&gt;");
+                break;
+            case '&':
+                result.append("&amp;");
+                break;
+            case '"':
+                result.append("&quot;");
+                break;
+            default:
+                result.append(content[i]);
+            }
+        }
+        return (result.toString());
+
+    }
+
+
+    /**
+     * Display the given size in bytes, either as KB or MB.
+     *
+     * @param mb true to display megabytes, false for kilobytes
+     */
+    public static String formatSize(Object obj, boolean mb) {
+
+        long bytes = -1L;
+
+        if (obj instanceof Long) {
+            bytes = ((Long) obj).longValue();
+        } else if (obj instanceof Integer) {
+            bytes = ((Integer) obj).intValue();
+        }
+
+        if (mb) {
+            long mbytes = bytes / (1024 * 1024);
+            long rest = 
+                ((bytes - (mbytes * (1024 * 1024))) * 100) / (1024 * 1024);
+            return (mbytes + "." + ((rest < 10) ? "0" : "") + rest + " MB");
+        } else {
+            return ((bytes / 1024) + " KB");
+        }
+
+    }
+
+
+    /**
+     * Display the given time in ms, either as ms or s.
+     *
+     * @param seconds true to display seconds, false for milliseconds
+     */
+    public static String formatTime(Object obj, boolean seconds) {
+
+        long time = -1L;
+
+        if (obj instanceof Long) {
+            time = ((Long) obj).longValue();
+        } else if (obj instanceof Integer) {
+            time = ((Integer) obj).intValue();
+        }
+
+        if (seconds) {
+            return ((((float) time ) / 1000) + " s");
+        } else {
+            return (time + " ms");
+        }
+    }
+
+
+    /**
+     * Formats the given time (given in seconds) as a string.
+     *
+     * @param obj Time object to be formatted as string
+     *
+     * @return String formatted time
+     */
+    public static String formatSeconds(Object obj) {
+
+        long time = -1L;
+
+        if (obj instanceof Long) {
+            time = ((Long) obj).longValue();
+        } else if (obj instanceof Integer) {
+            time = ((Integer) obj).intValue();
+        }
+
+        return (time + " s");
+    }
+    
+    public static Object getAttribute(MBeanServer mBeanServer, ObjectName name, String attribute) throws JMException
+    {
+       try
+       {
+          return mBeanServer.getAttribute(name, attribute);
+       }
+       catch (AttributeNotFoundException e)
+       {
+          // Try again, reversing case of the first letter of the attribute
+          StringBuilder builder = new StringBuilder(attribute.length());
+          char first = attribute.charAt(0);
+          builder.append(Character.isLowerCase(first) ? Character.toUpperCase(first) : Character.toLowerCase(first));
+          builder.append(attribute.substring(1));
+          
+          try
+          {
+             return mBeanServer.getAttribute(name, builder.toString());
+          }
+          catch (AttributeNotFoundException e2)
+          {
+             // Throw original exception
+             throw e;
+          }
+       }
+    }
+
+
+}



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