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// 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 de.anomic.http.httpHeader;
import de.anomic.plasma.plasmaSwitchboard;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
import de.anomic.yacy.yacyVersion;
import java.util.Map;
import java.lang.StringBuffer;
import java.util.Date;
public class Threaddump_p {
private static serverObjects prop;
private static plasmaSwitchboard sb;
public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) {
prop = new serverObjects();
sb = (plasmaSwitchboard) env;
StringBuffer buffer = new StringBuffer(1000);
if (post != null && post.containsKey("createThreaddump")) {
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"));
buffer.append("************* Start Thread Dump " + dt + " *******************").append("<br />");
buffer.append("<br /> YaCy Version: " + versionstring + "<br />");
buffer.append("Total Memory = " + (Runtime.getRuntime().totalMemory())).append("<br />");
buffer.append("Used Memory = " + (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory())).append("<br />");
buffer.append("Free Memory = " + (Runtime.getRuntime().freeMemory())).append("<br />");
buffer.append(" --- --- --- --- <br /><br />");
appendStackTraces(buffer, stackTraces, Thread.State.BLOCKED);
appendStackTraces(buffer, stackTraces, Thread.State.RUNNABLE);
appendStackTraces(buffer, stackTraces, Thread.State.TIMED_WAITING);
appendStackTraces(buffer, stackTraces, Thread.State.WAITING);
appendStackTraces(buffer, stackTraces, Thread.State.NEW);
appendStackTraces(buffer, stackTraces, Thread.State.TERMINATED);
buffer.append("************* End Thread Dump " + dt + " *******************").append("<br />");
prop.put("dump_content", buffer.toString());
} else {
prop.put("dump", "0");
}
return prop; // return from serverObjects respond()
}
private static void appendStackTraces(StringBuffer buffer, Map<Thread,StackTraceElement[]> stackTraces, Thread.State stateIn) {
buffer.append("THREADS WITH STATES: " + stateIn.toString()).append("<br />").append("<br />");
for (Thread thread: stackTraces.keySet()) {
StackTraceElement[] stackTraceElement = stackTraces.get(thread);
if (stateIn.equals(thread.getState())) {
buffer.append("Thread= " + thread.getName() + " " + (thread.isDaemon()?"daemon":"") + " id=" + thread.getId() + " " + thread.getState().toString()).append("<br />");
for (int i = 0; i < stackTraceElement.length; i++) {
buffer.append("at " + stackTraceElement[i]).append("<br />");
}
buffer.append("<br />");
}
}
buffer.append("<br />");
}
}
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