/*
* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.tools.visualvm.modules.threadinspect;
import com.sun.tools.visualvm.application.Application;
import com.sun.tools.visualvm.core.options.GlobalPreferences;
import com.sun.tools.visualvm.tools.jmx.JmxModel;
import com.sun.tools.visualvm.tools.jmx.JmxModel.ConnectionState;
import com.sun.tools.visualvm.tools.jmx.JmxModelFactory;
import com.sun.tools.visualvm.tools.jmx.JvmMXBeans;
import com.sun.tools.visualvm.tools.jmx.JvmMXBeansFactory;
import java.lang.management.ThreadInfo;
import java.lang.management.ThreadMXBean;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author Jiri Sedlacek
* @author Tomas Hurka
*/
final class Engine {
private static final Logger LOGGER = Logger.getLogger(Engine.class.getName());
private JmxModel jmxModel;
private ThreadMXBean threadBean;
static Engine getEngine(Application application) {
try {
JmxModel jmxModel = JmxModelFactory.getJmxModelFor(application);
if (jmxModel != null && jmxModel.getConnectionState() == ConnectionState.CONNECTED) {
JvmMXBeans mxbeans = JvmMXBeansFactory.getJvmMXBeans(jmxModel,
GlobalPreferences.sharedInstance().getThreadsPoll() * 1000);
if (jmxModel != null) {
ThreadMXBean tbean = mxbeans.getThreadMXBean();
if (tbean != null) {
return new Engine(jmxModel,tbean);
}
}
}
} catch (Throwable t) {
LOGGER.log(Level.INFO, "Problem resolving ThreadMXBean", t); // NOI18N
}
return null;
}
Engine(JmxModel model, ThreadMXBean tbean) {
jmxModel = model;
threadBean = tbean;
}
List<ThreadInfo> getThreadInfos() {
List<ThreadInfo> tinfosList = null;
try {
long[] threadIds = threadBean.getAllThreadIds();
ThreadInfo[] threadInfos = threadBean.getThreadInfo(threadIds);
tinfosList = new ArrayList(threadInfos.length);
for (ThreadInfo tinfo : threadInfos)
if (tinfo != null && tinfo.getThreadName() != null)
tinfosList.add(tinfo);
Collections.sort(tinfosList, new Comparator<ThreadInfo>() {
public int compare(ThreadInfo ti1, ThreadInfo ti2) {
return ti1.getThreadName().compareTo(ti2.getThreadName());
}
});
} catch (Throwable t) {
LOGGER.log(Level.INFO, "Problem resolving ThreadInfos", t); // NOI18N
}
return tinfosList;
}
String getStackTraces(List<Long> threadIdsL) {
long[] threadIds = new long[threadIdsL.size()];
for (int i = 0; i < threadIds.length; i++) threadIds[i] = threadIdsL.get(i);
String stackTraces = jmxModel.takeThreadDump(threadIds);
return "<pre>" + transform(htmlize(stackTraces)) + "</pre>"; // NOI18N
}
private static String htmlize(String value) {
return value.replace("&", "&").replace("<", "<"); // NOI18N
}
private static String transform(String value) {
StringBuilder sb = new StringBuilder();
String[] result = value.split("\\n"); // NOI18N
for (int i = 0; i < result.length; i++) {
String line = result[i];
if (!line.isEmpty() && !Character.isWhitespace(line.charAt(0))) {
sb.append("<span style=\"color: #0033CC\">"); // NOI18N
sb.append(line);
sb.append("</span><br>"); // NOI18N
} else {
sb.append(line);
sb.append("<br>"); // NOI18N
}
}
return sb.toString();
}
}