/*
* Licensed under the GPL License. You may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
package com.googlecode.psiprobe.controllers.threads;
import com.googlecode.psiprobe.model.SunThread;
import com.googlecode.psiprobe.model.ThreadStackElement;
import com.googlecode.psiprobe.tools.JmxTools;
import java.util.ArrayList;
import java.util.List;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import javax.management.openmbean.CompositeData;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.modeler.Registry;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.ParameterizableViewController;
public class ListSunThreadsController extends ParameterizableViewController {
protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception {
List threads = null;
int executionStackDepth = 1;
MBeanServer mBeanServer = new Registry().getMBeanServer();
ObjectName threadingOName = new ObjectName("java.lang:type=Threading");
long[] deadlockedIds = (long[]) mBeanServer.invoke(threadingOName, "findMonitorDeadlockedThreads", null, null);
long[] allIds = (long[]) mBeanServer.getAttribute(threadingOName, "AllThreadIds");
if (allIds != null) {
threads = new ArrayList(allIds.length);
for (int i = 0; i < allIds.length; i++) {
CompositeData cd = (CompositeData) mBeanServer.invoke(threadingOName, "getThreadInfo",
new Object[]{new Long(allIds[i]), new Integer(executionStackDepth)}, new String[]{"long", "int"});
if (cd != null) {
SunThread st = new SunThread();
st.setId(JmxTools.getLongAttr(cd, "threadId"));
st.setName(JmxTools.getStringAttr(cd, "threadName"));
st.setState(JmxTools.getStringAttr(cd, "threadState"));
st.setSuspended(JmxTools.getBooleanAttr(cd, "suspended"));
st.setInNative(JmxTools.getBooleanAttr(cd, "inNative"));
st.setLockName(JmxTools.getStringAttr(cd, "lockName"));
st.setLockOwnerName(JmxTools.getStringAttr(cd, "lockOwnerName"));
st.setWaitedCount(JmxTools.getLongAttr(cd, "waitedCount"));
st.setBlockedCount(JmxTools.getLongAttr(cd, "blockedCount"));
st.setDeadlocked(contains(deadlockedIds, st.getId()));
CompositeData[] stack = (CompositeData[]) cd.get("stackTrace");
if (stack.length > 0) {
CompositeData cd2 = stack[0];
ThreadStackElement tse = new ThreadStackElement();
tse.setClassName(JmxTools.getStringAttr(cd2, "className"));
tse.setFileName(JmxTools.getStringAttr(cd2, "fileName"));
tse.setMethodName(JmxTools.getStringAttr(cd2, "methodName"));
tse.setLineNumber(JmxTools.getIntAttr(cd2, "lineNumber", -1));
tse.setNativeMethod(JmxTools.getBooleanAttr(cd2, "nativeMethod"));
st.setExecutionPoint(tse);
}
threads.add(st);
}
}
}
return new ModelAndView(getViewName(), "threads", threads);
}
private static boolean contains(long[] array, long e) {
if (array != null) {
for (int i = 0; i < array.length; i++) {
if (array[i] == e) {
return true;
}
}
}
return false;
}
}