/*
* 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=\"?\"");
}
writer.write(" protocol=\""
+ filter(getAttribute(mBeanServer, pName, "protocol")) + "\"");
} else {
writer.write(" method=\"?\"");
writer.write(" currentUri=\"?\"");
writer.write(" currentQueryString=\"?\"");
writer.write(" protocol=\"?\"");
}
} else {
writer.write(" requestProcessingTime=\"0\"");
writer.write(" requestBytesSent=\"0\"");
writer.write(" requestBytesRecieved=\"0\"");
writer.write(" remoteAddr=\"?\"");
writer.write(" virtualHost=\"?\"");
writer.write(" method=\"?\"");
writer.write(" currentUri=\"?\"");
writer.write(" currentQueryString=\"?\"");
writer.write(" protocol=\"?\"");
}
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("<");
break;
case '>':
result.append(">");
break;
case '&':
result.append("&");
break;
case '"':
result.append(""");
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;
}
}
}
}