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yacy_search_server
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*) Adding server shutdown hook

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... to allow a graceful shutdown even if the java runtime was interrupted using
   <ctrl>+<c>

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@104 6c8d7289-2bf4-0310-a012-ef5d649a1542
pull/1/head
theli 20 years ago
parent 77fd0fdf3f
commit 5a651284a2
1 changed files with 243 additions and 208 deletions
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111
source/yacy.java
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@ -1,42 +1,42 @@
// yacy.java
// -----------------------
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.yacy.net
// Frankfurt, Germany, 2004, 2005
// last major change: 24.03.2005
//yacy.java
//-----------------------
//(C) by Michael Peter Christen; mc@anomic.de
//first published on http://www.yacy.net
//Frankfurt, Germany, 2004, 2005
//last major change: 24.03.2005
//
// 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 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.
//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
//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.
//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.
//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.
/*
This is the main class of the proxy.
@ -61,7 +61,7 @@
- work off the indexing and cache storage queue. These values are inside a RAM cache and would be lost othervise
- write all settings
- terminate
*/
*/
import java.io.BufferedReader;
@ -263,6 +263,11 @@ public final class yacy {
serverSystem.openBrowser("http://localhost:" + port + "/" + browserPopUpPage, browserPopUpApplication);
}
// registering shutdown hook
serverLog.logSystem("STARTUP", "Registering Shutdown Hook");
Runtime run = Runtime.getRuntime();
run.addShutdownHook(new shutdownHookThread(Thread.currentThread(), sb));
// wait for server shutdown
try {
sb.waitForShutdown();
@ -299,7 +304,9 @@ public final class yacy {
ee.printStackTrace();
}
serverLog.logSystem("SHUTDOWN", "goodbye. (this is the last line)");
try {System.exit(0);} catch (Exception e) {} // was once stopped by de.anomic.net.ftpc$sm.checkExit(ftpc.java:1790)
try {
System.exit(0);
} catch (Exception e) {} // was once stopped by de.anomic.net.ftpc$sm.checkExit(ftpc.java:1790)
}
@ -328,7 +335,7 @@ public final class yacy {
return config;
}
private static void shutdown(String homePath) {
static void shutdown(String homePath) {
// start up
System.out.println(copyright);
System.out.println(hline);
@ -344,7 +351,7 @@ public final class yacy {
// send 'wget' to web interface
httpHeader requestHeader = new httpHeader();
requestHeader.put("Authorization", "realm=" + encodedPassword); // for http-authentify
requestHeader.put("REMOTE-SHUTDOWN", "realm=" + encodedPassword); // for http-authentify
try {
httpc con = httpc.getInstance("localhost", port, 10000, false);
httpc.response res = con.GET("Steering.html?shutdown=", requestHeader);
@ -550,3 +557,31 @@ public final class yacy {
}
}
class shutdownHookThread extends Thread
{
private plasmaSwitchboard sb = null;
private Thread mainThread = null;
public shutdownHookThread(Thread mainThread, plasmaSwitchboard sb) {
this.sb = sb;
this.mainThread = mainThread;
}
public void run() {
try {
if (!this.sb.isTerminated()) {
serverLog.logSystem("SHUTDOWN","Shutdown via shutdown hook.");
// sending the yacy main thread a shutdown signal
this.sb.terminate();
// waiting for the yacy thread to finish execution
this.mainThread.join();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}

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