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yacy_search_server/htroot/Threaddump_p.java

180 lines
8.4 KiB

// Threaddump_p.java
// -----------------------
// part of YACY
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.anomic.de
// Frankfurt, Germany, 2004
//
// This File is contributed by Alexander Fieger
//
// $LastChangedDate: 2008-01-22 12:51:43 +0100 (Di, 22 Jan 2008) $
// $LastChangedRevision: 4374 $
// $LastChangedBy: low012 $
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Using this software in any meaning (reading, learning, copying, compiling,
// running) means that you agree that the Author(s) is (are) not responsible
// for cost, loss of data or any harm that may be caused directly or indirectly
// by usage of this softare or this documentation. The usage of this software
// is on your own risk. The installation and usage (starting/running) of this
// software may allow other people or application to access your computer and
// any attached devices and is highly dependent on the configuration of the
// software which must be done by the user of the software; the author(s) is
// (are) also not responsible for proper configuration and usage of the
// software, even if provoked by documentation provided together with
// the software.
//
// Any changes to this file according to the GPL as documented in the file
// gpl.txt aside this file in the shipment you received can be done to the
// lines that follows this copyright notice here, but changes must not be
// done inside the copyright notive above. A re-distribution must contain
// the intact and unchanged copyright notice.
// Contributions and changes to the program code must be marked as such.
// You must compile this file with
// javac -classpath .:../Classes Blacklist_p.java
// if the shell's current path is HTROOT
import java.io.File;
import java.io.IOException;
import java.util.Date;
import java.util.Map;
import de.anomic.data.htmlTools;
import de.anomic.http.httpHeader;
import de.anomic.plasma.plasmaSwitchboard;
import de.anomic.server.serverFileUtils;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
import de.anomic.tools.nxTools;
import de.anomic.yacy.yacyVersion;
public class Threaddump_p {
private static final serverObjects prop = new serverObjects();
private static plasmaSwitchboard sb = null;
public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch<?> env) {
prop.clear();
sb = (plasmaSwitchboard) env;
StringBuffer buffer = new StringBuffer(1000);
if (post != null && post.containsKey("createThreaddump")) {
boolean plain = post.get("plain", "false").equals("true");
int sleep = post.getInt("sleep", 0); // a sleep before creation of a thread dump can be used for profiling
if (sleep > 0) try {Thread.sleep(sleep);} catch (InterruptedException e) {}
prop.put("dump", "1");
// Thread dump
Map<Thread,StackTraceElement[]> stackTraces = Thread.getAllStackTraces();
Date dt = new Date();
String versionstring = yacyVersion.combined2prettyVersion(sb.getConfig("version","0.1"));
bufferappend(buffer, plain, "************* Start Thread Dump " + dt + " *******************");
bufferappend(buffer, plain, "");
bufferappend(buffer, plain, "YaCy Version: " + versionstring);
bufferappend(buffer, plain, "Total Memory = " + (Runtime.getRuntime().totalMemory()));
bufferappend(buffer, plain, "Used&nbsp;&nbsp;Memory = " + (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()));
bufferappend(buffer, plain, "Free&nbsp;&nbsp;Memory = " + (Runtime.getRuntime().freeMemory()));
bufferappend(buffer, plain, "");
bufferappend(buffer, plain, "");
appendStackTraces(sb.getRootPath(), buffer, stackTraces, plain, Thread.State.BLOCKED);
appendStackTraces(sb.getRootPath(), buffer, stackTraces, plain, Thread.State.RUNNABLE);
appendStackTraces(sb.getRootPath(), buffer, stackTraces, plain, Thread.State.TIMED_WAITING);
appendStackTraces(sb.getRootPath(), buffer, stackTraces, plain, Thread.State.WAITING);
appendStackTraces(sb.getRootPath(), buffer, stackTraces, plain, Thread.State.NEW);
appendStackTraces(sb.getRootPath(), buffer, stackTraces, plain, Thread.State.TERMINATED);
bufferappend(buffer, plain, "************* End Thread Dump " + dt + " *******************");
prop.put("plain_content", buffer.toString());
prop.put("plain", (plain) ? 1 : 0);
}
return prop; // return from serverObjects respond()
}
private static void appendStackTraces(File rootPath, StringBuffer buffer, Map<Thread,StackTraceElement[]> stackTraces, boolean plain, Thread.State stateIn) {
bufferappend(buffer, plain, "THREADS WITH STATES: " + stateIn.toString());
bufferappend(buffer, plain, "");
File classPath = new File(rootPath, "source");
for (Thread thread: stackTraces.keySet()) {
StackTraceElement[] stackTraceElements = stackTraces.get(thread);
StackTraceElement ste;
String line;
String tracename = "";
File classFile;
if ((stateIn.equals(thread.getState())) && (stackTraceElements.length > 0)) {
if (plain) {
classFile = getClassFile(classPath, stackTraceElements[stackTraceElements.length - 1].getClassName());
tracename = classFile.getName();
if (tracename.endsWith(".java")) tracename = tracename.substring(0, tracename.length() - 5);
if (tracename.length() > 20) tracename = tracename.substring(0, 20);
while (tracename.length() < 20) tracename = tracename + "_";
tracename = "[" + tracename + "] ";
}
bufferappend(buffer, plain, tracename + "Thread= " + thread.getName() + " " + (thread.isDaemon()?"daemon":"") + " id=" + thread.getId() + " " + thread.getState().toString());
for (int i = 0; i < stackTraceElements.length; i++) {
ste = stackTraceElements[i];
if (i == 0) {
line = getLine(getClassFile(classPath, ste.getClassName()), ste.getLineNumber());
} else {
line = null;
}
if ((line != null) && (line.length() > 0)) {
bufferappend(buffer, plain, tracename + "at " + htmlTools.encodeUnicode2html(ste.toString(), true) + " [" + line.trim() + "]");
} else {
bufferappend(buffer, plain, tracename + "at " + htmlTools.encodeUnicode2html(ste.toString(), true));
}
}
bufferappend(buffer, plain, "");
}
}
bufferappend(buffer, plain, "");
}
private static File getClassFile(File sourcePath, String classname) {
String classPath = classname.replace('.', '/') + ".java";
File file = new File(sourcePath, classPath);
return file;
}
private static String getLine(File file, int line) {
// find class
if (!file.exists()) return "";
try {
String lineString = nxTools.line(serverFileUtils.read(file), line);
if (lineString == null) return "@ERROR";
return lineString;
} catch (IOException e) {
return "@EXCEPTION: " + e.getMessage();
}
}
private static void bufferappend(StringBuffer buffer, boolean plain, String a) {
buffer.append(a);
if (plain) {
buffer.append("\n");
} else {
buffer.append("<br />");
}
}
}