| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * Licensed 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 com.intellij.diagnostic; |
| |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.io.IOException; |
| import java.io.StringWriter; |
| import java.io.Writer; |
| import java.lang.management.ManagementFactory; |
| import java.lang.management.ThreadInfo; |
| import java.lang.management.ThreadMXBean; |
| import java.util.Arrays; |
| import java.util.Comparator; |
| |
| /** |
| * @author yole |
| */ |
| public class ThreadDumper { |
| private ThreadDumper() { |
| } |
| |
| public static String dumpThreadsToString() { |
| StringWriter writer = new StringWriter(); |
| dumpThreadsToFile(ManagementFactory.getThreadMXBean(), writer); |
| return writer.toString(); |
| } |
| |
| @Nullable |
| static StackTraceElement[] dumpThreadsToFile(final ThreadMXBean threadMXBean, final Writer f) { |
| StackTraceElement[] edtStack = null; |
| boolean dumpSuccessful = false; |
| |
| try { |
| ThreadInfo[] threads = sort(threadMXBean.dumpAllThreads(false, false)); |
| for(ThreadInfo info: threads) { |
| if (info != null) { |
| if (info.getThreadName().equals("AWT-EventQueue-1")) { |
| edtStack = info.getStackTrace(); |
| } |
| dumpThreadInfo(info, f); |
| } |
| } |
| dumpSuccessful = true; |
| } |
| catch (Exception ignored) { |
| |
| } |
| |
| if (!dumpSuccessful) { |
| final long[] threadIds = threadMXBean.getAllThreadIds(); |
| final ThreadInfo[] threadInfo = sort(threadMXBean.getThreadInfo(threadIds, Integer.MAX_VALUE)); |
| for (ThreadInfo info : threadInfo) { |
| if (info != null) { |
| if (info.getThreadName().equals("AWT-EventQueue-1")) { |
| edtStack = info.getStackTrace(); |
| } |
| dumpThreadInfo(info, f); |
| } |
| } |
| } |
| |
| return edtStack; |
| } |
| |
| private static ThreadInfo[] sort(ThreadInfo[] threads) { |
| Arrays.sort(threads, new Comparator<ThreadInfo>() { |
| @Override |
| public int compare(ThreadInfo o1, ThreadInfo o2) { |
| final String t1 = o1.getThreadName(); |
| final String t2 = o2.getThreadName(); |
| if (t1.startsWith("AWT-EventQueue")) return -1; |
| if (t2.startsWith("AWT-EventQueue")) return 1; |
| final boolean r1 = o1.getThreadState() == Thread.State.RUNNABLE; |
| final boolean r2 = o2.getThreadState() == Thread.State.RUNNABLE; |
| if (r1 && !r2) return -1; |
| if (r2 && !r1) return 1; |
| return 0; |
| } |
| }); |
| |
| return threads; |
| } |
| |
| private static void dumpThreadInfo(final ThreadInfo info, final Writer f) { |
| dumpCallStack(info, f, info.getStackTrace()); |
| } |
| |
| private static void dumpCallStack(final ThreadInfo info, final Writer f, final StackTraceElement[] stackTraceElements) { |
| try { |
| @NonNls StringBuilder sb = new StringBuilder("\"").append(info.getThreadName()).append("\""); |
| sb.append(" prio=0 tid=0x0 nid=0x0 ").append(getReadableState(info.getThreadState())).append("\n"); |
| sb.append(" java.lang.Thread.State: ").append(info.getThreadState()).append("\n"); |
| if (info.getLockName() != null) { |
| sb.append(" on ").append(info.getLockName()); |
| } |
| if (info.getLockOwnerName() != null) { |
| sb.append(" owned by \"").append(info.getLockOwnerName()).append("\" Id=").append(info.getLockOwnerId()); |
| } |
| if (info.isSuspended()) { |
| sb.append(" (suspended)"); |
| } |
| if (info.isInNative()) { |
| sb.append(" (in native)"); |
| } |
| |
| f.write(sb + "\n"); |
| for (StackTraceElement element : stackTraceElements) { |
| f.write("\tat " + element.toString() + "\n"); |
| } |
| f.write("\n"); |
| } |
| catch (IOException e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| private static String getReadableState(Thread.State state) { |
| switch (state) { |
| case BLOCKED: return "blocked"; |
| case TIMED_WAITING: |
| case WAITING: return "waiting on condition"; |
| case RUNNABLE: return "runnable"; |
| case NEW: return "new"; |
| case TERMINATED: return "terminated"; |
| } |
| return null; |
| } |
| } |