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193 lines
8.6 KiB
193 lines
8.6 KiB
14 years ago
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// ThreadDumpGenerator
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// (C) by Michael Peter Christen; mc@yacy.net
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004-2010
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//
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// This File contains contributions from Alexander Fieger
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//
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// $LastChangedDate: 2010-09-02 21:24:22 +0200 (Do, 02 Sep 2010) $
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// $LastChangedRevision: 7092 $
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// $LastChangedBy: orbiter $
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package net.yacy.kelondro.logging;
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import java.io.File;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.SortedSet;
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import java.util.TreeSet;
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import java.util.Map.Entry;
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import net.yacy.document.parser.html.CharacterCoding;
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import net.yacy.kelondro.util.FileUtils;
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import de.anomic.tools.nxTools;
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public class ThreadDumpGenerator {
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public static void appendStackTraces(final File rootPath, final StringBuilder buffer, final Map<Thread,StackTraceElement[]> stackTraces, final boolean plain, final Thread.State stateIn) {
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bufferappend(buffer, plain, "THREADS WITH STATES: " + stateIn.toString());
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bufferappend(buffer, plain, "");
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// collect single dumps
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HashMap<String, SortedSet<String>> dumps = dumpCollection(rootPath, stackTraces, plain, stateIn);
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// write dumps
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for (final Entry<String, SortedSet<String>> entry: dumps.entrySet()) {
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SortedSet<String> threads = entry.getValue();
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for (String t: threads) bufferappend(buffer, plain, t);
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bufferappend(buffer, plain, entry.getKey());
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bufferappend(buffer, plain, "");
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}
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bufferappend(buffer, plain, "");
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}
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public static void appendStackTraceStats(final File rootPath, final StringBuilder buffer, final ArrayList<Map<Thread,StackTraceElement[]>> traces, final boolean plain, final Thread.State stateIn) {
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if (stateIn != null) {
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bufferappend(buffer, plain, "THREADS WITH STATES: " + stateIn.toString());
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bufferappend(buffer, plain, "");
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}
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// collect single dumps
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HashMap<String, Integer> dumps = dumpStatistic(rootPath, traces, plain, stateIn);
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// write dumps
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while (!dumps.isEmpty()) {
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Entry<String, Integer> e = removeMax(dumps);
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bufferappend(buffer, plain, "Occurrences: " + e.getValue());
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bufferappend(buffer, plain, e.getKey());
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//bufferappend(buffer, plain, "");
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}
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bufferappend(buffer, plain, "");
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}
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private static Entry<String, Integer> removeMax(HashMap<String, Integer> result) {
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Entry<String, Integer> max = null;
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for (final Entry<String, Integer> e: result.entrySet()) {
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if (max == null || e.getValue().intValue() > max.getValue().intValue()) {
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max = e;
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}
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}
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result.remove(max.getKey());
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return max;
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}
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private static HashMap<String, Integer> dumpStatistic(final File rootPath, final ArrayList<Map<Thread,StackTraceElement[]>> stackTraces, final boolean plain, final Thread.State stateIn) {
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Map<Thread,StackTraceElement[]> trace;
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HashMap<String, Integer> result = new HashMap<String, Integer>();
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HashMap<String, SortedSet<String>> x;
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int count;
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for (int i = 0; i < stackTraces.size(); i++) {
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trace = stackTraces.get(i);
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x = dumpCollection(rootPath, trace, plain, stateIn);
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for (final Entry<String, SortedSet<String>> e: x.entrySet()) {
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Integer c = result.get(e.getKey());
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count = e.getValue().size();
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if (c == null) result.put(e.getKey(), Integer.valueOf(count));
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else {
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c = Integer.valueOf(c.intValue() + count);
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result.put(e.getKey(), c);
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}
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}
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}
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return result;
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}
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private static HashMap<String, SortedSet<String>> dumpCollection(final File appPath, final Map<Thread,StackTraceElement[]> stackTraces, final boolean plain, final Thread.State stateIn) {
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final File classPath = new File(appPath, "source");
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Thread thread;
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// collect single dumps
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HashMap<String, SortedSet<String>> dumps = new HashMap<String, SortedSet<String>>();
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for (final Entry<Thread, StackTraceElement[]> entry: stackTraces.entrySet()) {
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thread = entry.getKey();
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final StackTraceElement[] stackTraceElements = entry.getValue();
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StackTraceElement ste;
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String line;
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String tracename = "";
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File classFile;
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if ((stateIn == null || stateIn.equals(thread.getState())) && stackTraceElements.length > 0) {
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StringBuilder sb = new StringBuilder(3000);
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if (plain) {
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classFile = getClassFile(classPath, stackTraceElements[stackTraceElements.length - 1].getClassName());
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tracename = classFile.getName();
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if (tracename.endsWith(".java")) tracename = tracename.substring(0, tracename.length() - 5);
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if (tracename.length() > 20) tracename = tracename.substring(0, 20);
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while (tracename.length() < 20) tracename = tracename + "_";
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tracename = "[" + tracename + "] ";
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}
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String threadtitle = tracename + "Thread= " + thread.getName() + " " + (thread.isDaemon()?"daemon":"") + " id=" + thread.getId() + " " + thread.getState().toString();
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String className;
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boolean cutcore = true;
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for (int i = 0; i < stackTraceElements.length; i++) {
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ste = stackTraceElements[i];
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className = ste.getClassName();
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if (cutcore && (className.startsWith("java.") || className.startsWith("sun."))) {
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sb.setLength(0);
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bufferappend(sb, plain, tracename + "at " + CharacterCoding.unicode2html(ste.toString(), true));
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} else {
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cutcore = false;
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if (i == 0) {
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line = getLine(getClassFile(classPath, className), ste.getLineNumber());
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} else {
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line = null;
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}
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if ((line != null) && (line.length() > 0)) {
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bufferappend(sb, plain, tracename + "at " + CharacterCoding.unicode2html(ste.toString(), true) + " [" + line.trim() + "]");
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} else {
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bufferappend(sb, plain, tracename + "at " + CharacterCoding.unicode2html(ste.toString(), true));
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}
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}
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}
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String threaddump = sb.toString();
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SortedSet<String> threads = dumps.get(threaddump);
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if (threads == null) threads = new TreeSet<String>();
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threads.add(threadtitle);
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dumps.put(threaddump, threads);
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}
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}
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return dumps;
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}
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private static File getClassFile(final File sourcePath, final String classname) {
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final String classPath = classname.replace('.', '/') + ".java";
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final File file = new File(sourcePath, classPath);
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return file;
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}
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private static String getLine(final File file, final int line) {
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// find class
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if (!file.exists()) return "";
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try {
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final String lineString = nxTools.line(FileUtils.read(file), line);
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if (lineString == null) return "@ERROR";
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return lineString;
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} catch (final IOException e) {
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return "@EXCEPTION: " + e.getMessage();
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}
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}
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public static void bufferappend(final StringBuilder buffer, final boolean plain, final String a) {
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buffer.append(a);
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if (plain) {
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buffer.append("\n");
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} else {
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buffer.append("<br />");
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}
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}
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}
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