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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
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theli 20 years ago
parent 77fd0fdf3f
commit 5a651284a2
1 changed files with 243 additions and 208 deletions
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source/yacy.java
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@ -1,67 +1,67 @@
// 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.
From here, several threads are started:
- one single instance of the plasmaSwitchboard is generated,
which itself starts a thread with a plasmaHTMLCache object. This object simply counts
files sizes in the cache and terminates then.
It also generates a plasmaCrawlerLoader object, which may itself start
some more httpc-calling threads to load web pages. They terminate automatically when a page has loaded
- one serverCore - thread is started, which implements a multi-threaded server.
The process may start itself many more processes that handle connections.
- finally, all idle-dependent processes are written in a queue in plasmaSwitchboard
which are worked off inside an idle-sensitive loop of the main process. (here)
On termination, the following must be done:
- stop feeding of the crawling process because it othervise fills the indexing queue.
- say goodbye to connected peers and disable new connections. Don't wait for success.
- first terminate the serverCore thread. This prevents that new cache objects are queued
- wait that the plasmaHTMLCache terminates (it should be normal that this process already has terminated)
- then wait for termination of all loader process of the plasmaCrawlerLoader
- work off the indexing and cache storage queue. These values are inside a RAM cache and would be lost othervise
- write all settings
- terminate
*/
This is the main class of the proxy.
From here, several threads are started:
- one single instance of the plasmaSwitchboard is generated,
which itself starts a thread with a plasmaHTMLCache object. This object simply counts
files sizes in the cache and terminates then.
It also generates a plasmaCrawlerLoader object, which may itself start
some more httpc-calling threads to load web pages. They terminate automatically when a page has loaded
- one serverCore - thread is started, which implements a multi-threaded server.
The process may start itself many more processes that handle connections.
- finally, all idle-dependent processes are written in a queue in plasmaSwitchboard
which are worked off inside an idle-sensitive loop of the main process. (here)
On termination, the following must be done:
- stop feeding of the crawling process because it othervise fills the indexing queue.
- say goodbye to connected peers and disable new connections. Don't wait for success.
- first terminate the serverCore thread. This prevents that new cache objects are queued
- wait that the plasmaHTMLCache terminates (it should be normal that this process already has terminated)
- then wait for termination of all loader process of the plasmaCrawlerLoader
- 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;
@ -110,10 +110,10 @@ public final class yacy {
private static void startup(String homePath) {
long startup = yacyCore.universalTime();
try {
// start up
System.out.println(copyright);
System.out.println(hline);
try {
// start up
System.out.println(copyright);
System.out.println(hline);
// check java version
try {
@ -131,20 +131,20 @@ public final class yacy {
File dataFolder = new File(homePath, "DATA");
if (!(dataFolder.exists())) dataFolder.mkdir();
plasmaSwitchboard sb = new plasmaSwitchboard(homePath, "yacy.init", "DATA/SETTINGS/httpProxy.conf");
sb.setConfig("version", vString);
sb.setConfig("vdate", vDATE);
plasmaSwitchboard sb = new plasmaSwitchboard(homePath, "yacy.init", "DATA/SETTINGS/httpProxy.conf");
sb.setConfig("version", vString);
sb.setConfig("vdate", vDATE);
sb.setConfig("applicationRoot", homePath);
sb.setConfig("startupTime", "" + startup);
serverLog.logSystem("STARTUP", "YACY Version: " + vString + ", Built " + vDATE);
// read environment
// read environment
//new
int port = Integer.parseInt(sb.getConfig("port", "8080"));
int httpdLoglevel = Integer.parseInt(sb.getConfig("httpdLoglevel", "2"));
int timeout = Integer.parseInt(sb.getConfig("httpdTimeout", "60000"));
if (timeout < 60000) timeout = 60000;
int maxSessions = Integer.parseInt(sb.getConfig("httpdMaxSessions", "100"));
int httpdLoglevel = Integer.parseInt(sb.getConfig("httpdLoglevel", "2"));
int timeout = Integer.parseInt(sb.getConfig("httpdTimeout", "60000"));
if (timeout < 60000) timeout = 60000;
int maxSessions = Integer.parseInt(sb.getConfig("httpdMaxSessions", "100"));
// hardcoded, forced, temporary value-migration
sb.setConfig("htTemplatePath", "htroot/env/templates");
@ -157,17 +157,17 @@ public final class yacy {
if (!(htDocsPath.exists())) htDocsPath.mkdir();
File htdocsDefaultReadme = new File(htDocsPath, "readme.txt");
if (!(htdocsDefaultReadme.exists())) try {serverFileUtils.write((
"This is your root directory for individual Web Content\r\n" +
"\r\n" +
"Please place your html files into the www subdirectory.\r\n" +
"The URL of that path is either\r\n" +
"http://www.<your-peer-name>.yacy or\r\n" +
"http://<your-ip>:<your-port>/www\r\n" +
"\r\n" +
"Other subdirectories may be created; they map to corresponding sub-domains.\r\n" +
"This directory shares it's content with the applications htroot path, so you\r\n" +
"may access your yacy search page with\r\n" +
"http://<your-peer-name>.yacy/\r\n" +
"This is your root directory for individual Web Content\r\n" +
"\r\n" +
"Please place your html files into the www subdirectory.\r\n" +
"The URL of that path is either\r\n" +
"http://www.<your-peer-name>.yacy or\r\n" +
"http://<your-ip>:<your-port>/www\r\n" +
"\r\n" +
"Other subdirectories may be created; they map to corresponding sub-domains.\r\n" +
"This directory shares it's content with the applications htroot path, so you\r\n" +
"may access your yacy search page with\r\n" +
"http://<your-peer-name>.yacy/\r\n" +
"\r\n").getBytes(), htdocsDefaultReadme);} catch (IOException e) {
System.out.println("Error creating htdocs readme: " + e.getMessage());
}
@ -177,96 +177,101 @@ public final class yacy {
File wwwDefaultClass = new File(wwwDefaultPath, "welcome.class");
//if ((!(wwwDefaultClass.exists())) || (wwwDefaultClass.length() != (new File(htRootPath, "htdocsdefault/welcome.class")).length())) try {
if((new File(htRootPath, "htdocsdefault/welcome.java")).exists())
serverFileUtils.copy(new File(htRootPath, "htdocsdefault/welcome.java"), new File(wwwDefaultPath, "welcome.java"));
serverFileUtils.copy(new File(htRootPath, "htdocsdefault/welcome.class"), wwwDefaultClass);
serverFileUtils.copy(new File(htRootPath, "htdocsdefault/welcome.html"), new File(wwwDefaultPath, "welcome.html"));
if((new File(htRootPath, "htdocsdefault/welcome.java")).exists())
serverFileUtils.copy(new File(htRootPath, "htdocsdefault/welcome.java"), new File(wwwDefaultPath, "welcome.java"));
serverFileUtils.copy(new File(htRootPath, "htdocsdefault/welcome.class"), wwwDefaultClass);
serverFileUtils.copy(new File(htRootPath, "htdocsdefault/welcome.html"), new File(wwwDefaultPath, "welcome.html"));
//} catch (IOException e) {}
File shareDefaultPath = new File(htDocsPath, "share");
if (!(shareDefaultPath.exists())) shareDefaultPath.mkdir();
File shareDefaultClass = new File(shareDefaultPath, "dir.class");
//if ((!(shareDefaultClass.exists())) || (shareDefaultClass.length() != (new File(htRootPath, "htdocsdefault/dir.class")).length())) try {
if((new File(htRootPath, "htdocsdefault/dir.java")).exists())
serverFileUtils.copy(new File(htRootPath, "htdocsdefault/dir.java"), new File(shareDefaultPath, "dir.java"));
serverFileUtils.copy(new File(htRootPath, "htdocsdefault/dir.class"), shareDefaultClass);
serverFileUtils.copy(new File(htRootPath, "htdocsdefault/dir.html"), new File(shareDefaultPath, "dir.html"));
//if ((!(shareDefaultClass.exists())) || (shareDefaultClass.length() != (new File(htRootPath, "htdocsdefault/dir.class")).length())) try {
if((new File(htRootPath, "htdocsdefault/dir.java")).exists())
serverFileUtils.copy(new File(htRootPath, "htdocsdefault/dir.java"), new File(shareDefaultPath, "dir.java"));
serverFileUtils.copy(new File(htRootPath, "htdocsdefault/dir.class"), shareDefaultClass);
serverFileUtils.copy(new File(htRootPath, "htdocsdefault/dir.html"), new File(shareDefaultPath, "dir.html"));
//} catch (IOException e) {}
// set preset accounts/passwords
String acc;
if ((acc = sb.getConfig("proxyAccount", "")).length() > 0) {
sb.setConfig("proxyAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(serverCodings.standardCoder.encodeBase64String(acc)));
sb.setConfig("proxyAccount", "");
}
// set preset accounts/passwords
String acc;
if ((acc = sb.getConfig("proxyAccount", "")).length() > 0) {
sb.setConfig("proxyAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(serverCodings.standardCoder.encodeBase64String(acc)));
sb.setConfig("proxyAccount", "");
}
if ((acc = sb.getConfig("serverAccount", "")).length() > 0) {
sb.setConfig("serverAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(serverCodings.standardCoder.encodeBase64String(acc)));
sb.setConfig("serverAccount", "");
}
if ((acc = sb.getConfig("adminAccount", "")).length() > 0) {
sb.setConfig("adminAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(serverCodings.standardCoder.encodeBase64String(acc)));
sb.setConfig("adminAccount", "");
}
sb.setConfig("serverAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(serverCodings.standardCoder.encodeBase64String(acc)));
sb.setConfig("serverAccount", "");
}
if ((acc = sb.getConfig("adminAccount", "")).length() > 0) {
sb.setConfig("adminAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(serverCodings.standardCoder.encodeBase64String(acc)));
sb.setConfig("adminAccount", "");
}
// fix unsafe old passwords
if ((acc = sb.getConfig("proxyAccountBase64", "")).length() > 0) {
sb.setConfig("proxyAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc));
sb.setConfig("proxyAccountBase64", "");
}
if ((acc = sb.getConfig("serverAccountBase64", "")).length() > 0) {
sb.setConfig("serverAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc));
sb.setConfig("serverAccountBase64", "");
}
sb.setConfig("proxyAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc));
sb.setConfig("proxyAccountBase64", "");
}
if ((acc = sb.getConfig("serverAccountBase64", "")).length() > 0) {
sb.setConfig("serverAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc));
sb.setConfig("serverAccountBase64", "");
}
if ((acc = sb.getConfig("adminAccountBase64", "")).length() > 0) {
sb.setConfig("adminAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc));
sb.setConfig("adminAccountBase64", "");
}
sb.setConfig("adminAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc));
sb.setConfig("adminAccountBase64", "");
}
if ((acc = sb.getConfig("uploadAccountBase64", "")).length() > 0) {
sb.setConfig("uploadAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc));
sb.setConfig("uploadAccountBase64", "");
}
sb.setConfig("uploadAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc));
sb.setConfig("uploadAccountBase64", "");
}
if ((acc = sb.getConfig("downloadAccountBase64", "")).length() > 0) {
sb.setConfig("downloadAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc));
sb.setConfig("downloadAccountBase64", "");
}
sb.setConfig("downloadAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc));
sb.setConfig("downloadAccountBase64", "");
}
// init parser
de.anomic.plasma.plasmaParser.initMediaExt(sb.getConfig("mediaExt",""));
// start main threads
try {
// start main threads
try {
httpd protocolHandler = new httpd(sb, new httpdFileHandler(sb), new httpdProxyHandler(sb));
serverCore server = new serverCore(port,
maxSessions /*sessions*/,
timeout /*control socket timeout in milliseconds*/,
true /* terminate sleeping threads */,
true /* block attacks (wrong protocol) */,
protocolHandler /*command class*/,
sb,
30000 /*command max length incl. GET args*/,
httpdLoglevel /*loglevel*/);
server.setName("httpd:"+port);
if (server == null) {
serverLog.logFailure("STARTUP", "Failed to start server. Probably port " + port + " already in use.");
} else {
// first start the server
serverCore server = new serverCore(port,
maxSessions /*sessions*/,
timeout /*control socket timeout in milliseconds*/,
true /* terminate sleeping threads */,
true /* block attacks (wrong protocol) */,
protocolHandler /*command class*/,
sb,
30000 /*command max length incl. GET args*/,
httpdLoglevel /*loglevel*/);
server.setName("httpd:"+port);
if (server == null) {
serverLog.logFailure("STARTUP", "Failed to start server. Probably port " + port + " already in use.");
} else {
// first start the server
sb.deployThread("10_httpd", "HTTPD Server/Proxy", "the HTTPD, used as web server and proxy", server, null, 0, 0, 0);
//server.start();
// open the browser window
boolean browserPopUpTrigger = sb.getConfig("browserPopUpTrigger", "true").equals("true");
if (browserPopUpTrigger) {
String browserPopUpPage = sb.getConfig("browserPopUpPage", "Status.html");
String browserPopUpApplication = sb.getConfig("browserPopUpApplication", "netscape");
serverSystem.openBrowser("http://localhost:" + port + "/" + browserPopUpPage, browserPopUpApplication);
}
// wait for server shutdown
try {
sb.waitForShutdown();
} catch (Exception e) {
//server.start();
// open the browser window
boolean browserPopUpTrigger = sb.getConfig("browserPopUpTrigger", "true").equals("true");
if (browserPopUpTrigger) {
String browserPopUpPage = sb.getConfig("browserPopUpPage", "Status.html");
String browserPopUpApplication = sb.getConfig("browserPopUpApplication", "netscape");
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();
} catch (Exception e) {
serverLog.logError("MAIN CONTROL LOOP", "PANIK: " + e.getMessage());
e.printStackTrace();
}
@ -274,8 +279,8 @@ public final class yacy {
// shut down
serverLog.logSystem("SHUTDOWN", "catched termination signal");
server.terminate(false);
server.interrupt();
if (server.isAlive()) try {
server.interrupt();
if (server.isAlive()) try {
httpc.wget(new URL("http://localhost:" + port), 1000, null, null, null, 0); // kick server
serverLog.logSystem("SHUTDOWN", "sent termination signal to server socket");
} catch (IOException ee) {
@ -284,22 +289,24 @@ public final class yacy {
// idle until the processes are down
while (server.isAlive()) {
Thread.currentThread().sleep(2000); // wait a while
Thread.currentThread().sleep(2000); // wait a while
}
serverLog.logSystem("SHUTDOWN", "server has terminated");
sb.close();
}
} catch (Exception e) {
serverLog.logError("STARTUP", "" + e);
e.printStackTrace();
//System.exit(1);
}
} catch (Exception ee) {
serverLog.logFailure("STARTUP", "FATAL ERROR: " + ee.getMessage());
} catch (Exception e) {
serverLog.logError("STARTUP", "" + e);
e.printStackTrace();
//System.exit(1);
}
} catch (Exception ee) {
serverLog.logFailure("STARTUP", "FATAL ERROR: " + ee.getMessage());
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);
@ -343,8 +350,8 @@ public final class yacy {
if (encodedPassword == null) encodedPassword = ""; // not defined
// send 'wget' to web interface
httpHeader requestHeader = new httpHeader();
requestHeader.put("Authorization", "realm=" + encodedPassword); // for http-authentify
httpHeader requestHeader = new httpHeader();
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);
@ -377,7 +384,7 @@ public final class yacy {
Properties config = configuration("GEN-WORDSTAT", homePath);
// load words
// load words
serverLog.logInfo("GEN-WORDSTAT", "loading words...");
HashMap words = loadWordMap(new File(homePath, "yacy.words"));
@ -411,7 +418,7 @@ public final class yacy {
private static HashMap loadWordMap(File wordlist) {
// returns a hash-word - Relation
// returns a hash-word - Relation
HashMap wordmap = new HashMap();
try {
String word;
@ -423,7 +430,7 @@ public final class yacy {
}
private static HashSet loadWordSet(File wordlist) {
// returns a set of words
// returns a set of words
HashSet wordset = new HashSet();
try {
String word;
@ -445,12 +452,12 @@ public final class yacy {
int count = 0;
try {
BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(wordlist)));
String seps = "' .,:/-&";
String seps = "' .,:/-&";
while ((word = br.readLine()) != null) {
word = word.toLowerCase().trim();
for (int i = 0; i < seps.length(); i++) {
for (int i = 0; i < seps.length(); i++) {
if (word.indexOf(seps.charAt(i)) >= 0) word = word.substring(0, word.indexOf(seps.charAt(i)));
}
}
if ((word.length() >= minlength) && (word.length() <= maxlength)) wordset.add(word);
count++;
}
@ -494,23 +501,23 @@ public final class yacy {
// find all hashes
File f;
String w;
int count = 0;
long thisamount, totalamount = 0;
Iterator i = stopwords.iterator();
int count = 0;
long thisamount, totalamount = 0;
Iterator i = stopwords.iterator();
while (i.hasNext()) {
w = (String) i.next();
w = (String) i.next();
f = plasmaWordIndexEntity.wordHash2path(dbRoot, plasmaWordIndexEntry.word2hash(w));
if (f.exists()) {
thisamount = f.length();
if (f.delete()) {
count++;
totalamount += thisamount;
serverLog.logInfo("DELETE-STOPWORDS", "deleted index for word '" + w + "', " + thisamount + " bytes");
}
}
if (f.exists()) {
thisamount = f.length();
if (f.delete()) {
count++;
totalamount += thisamount;
serverLog.logInfo("DELETE-STOPWORDS", "deleted index for word '" + w + "', " + thisamount + " bytes");
}
}
}
serverLog.logInfo("DELETE-STOPWORDS", "TOTALS: deleted " + count + " indexes; " + (totalamount / 1024) + " kbytes");
serverLog.logInfo("DELETE-STOPWORDS", "TOTALS: deleted " + count + " indexes; " + (totalamount / 1024) + " kbytes");
// finished
serverLog.logSystem("DELETE-STOPWORDS", "FINISHED");
@ -533,13 +540,13 @@ public final class yacy {
deleteStopwords(applicationRoot);
} else if ((args.length >= 1) && (args[0].equals("-genwordstat"))) {
// this can help to create a stop-word list
// to use this, you need a 'yacy.words' file in the root path
// start this with "java -classpath classes yacy -genwordstat [<rootdir>]"
// to use this, you need a 'yacy.words' file in the root path
// start this with "java -classpath classes yacy -genwordstat [<rootdir>]"
if (args.length == 2) applicationRoot= args[1];
genWordstat(applicationRoot);
} else if ((args.length == 4) && (args[0].equals("-cleanwordlist"))) {
// this can be used to organize and clean a word-list
// start this with "java -classpath classes yacy -cleanwordlist <word-file> <minlength> <maxlength>"
// start this with "java -classpath classes yacy -cleanwordlist <word-file> <minlength> <maxlength>"
int minlength = Integer.parseInt(args[2]);
int maxlength = Integer.parseInt(args[3]);
cleanwordlist(args[1], minlength, maxlength);
@ -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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