yacy_search_server/source/yacy.java
orbiter a31b9097a4 preparations for mass remote crawls:
two main changes must be implemented to enable mass remote crawls:
- shift control of robots.txt to crawl queue (away from stacker). This is necessary since remote
  crawls can contain unchecked urls. Each peer must check the robots to prevent that it is misused
  as crawl agent for unwanted file retrieval
- implement new index files that control double-check of remotely crawled urls

After removal of robots.txt checking from stacker threads, the multi-threading of this process is void.
Multithreading has been removed. Also the thread pools for the crawl threads had been removed, since
creation of these threads is not resource-consuming, for a detailed explanation see svn 4106

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4181 6c8d7289-2bf4-0310-a012-ef5d649a1542
2007-10-29 01:43:20 +00:00

1241 lines
62 KiB
Java

// yacy.java
// -----------------------
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.yacy.net
// Frankfurt, Germany, 2004, 2005
//
// $LastChangedDate$
// $LastChangedRevision$
// $LastChangedBy$
//
// 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.
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
import java.util.TreeSet;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import de.anomic.data.translator;
import de.anomic.http.httpHeader;
import de.anomic.http.httpc;
import de.anomic.http.httpd;
import de.anomic.index.indexContainer;
import de.anomic.index.indexRWIEntry;
import de.anomic.index.indexURLEntry;
import de.anomic.kelondro.kelondroBase64Order;
import de.anomic.kelondro.kelondroDyn;
import de.anomic.kelondro.kelondroMScoreCluster;
import de.anomic.kelondro.kelondroMapObjects;
import de.anomic.plasma.plasmaCondenser;
import de.anomic.plasma.plasmaCrawlEntry;
import de.anomic.plasma.plasmaCrawlLURL;
import de.anomic.plasma.plasmaCrawlNURL;
import de.anomic.plasma.plasmaCrawlZURL;
import de.anomic.plasma.plasmaSwitchboard;
import de.anomic.plasma.plasmaWordIndex;
import de.anomic.server.serverCore;
import de.anomic.server.serverDate;
import de.anomic.server.serverFileUtils;
import de.anomic.server.serverMemory;
import de.anomic.server.serverSemaphore;
import de.anomic.server.serverSystem;
import de.anomic.server.logging.serverLog;
import de.anomic.tools.enumerateFiles;
import de.anomic.tools.yFormatter;
import de.anomic.yacy.yacyClient;
import de.anomic.yacy.yacySeedDB;
import de.anomic.yacy.yacyURL;
import de.anomic.yacy.yacyVersion;
/**
* This is the main class of YaCy. Several threads are started from here:
* <ul>
* <li>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 them. 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.
* <li>one serverCore - thread is started, which implements a multi-threaded
* server. The process may start itself many more processes that handle
* connections.lo
* <li>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)
* </ul>
*
* On termination, the following must be done:
* <ul>
* <li>stop feeding of the crawling process because it othervise fills the
* indexing queue.
* <li>say goodbye to connected peers and disable new connections. Don't wait for
* success.
* <li>first terminate the serverCore thread. This prevents that new cache
* objects are queued.
* <li>wait that the plasmaHTMLCache terminates (it should be normal that this
* process already has terminated).
* <li>then wait for termination of all loader process of the
* plasmaCrawlerLoader.
* <li>work off the indexing and cache storage queue. These values are inside a
* RAM cache and would be lost otherwise.
* <li>write all settings.
* <li>terminate.
* </ul>
*/
public final class yacy {
// static objects
public static final String vString = "@REPL_VERSION@";
public static double version = 0.1;
public static boolean pro;
public static final String vDATE = "@REPL_DATE@";
public static final String copyright = "[ YaCy v" + vString + ", build " + vDATE + " by Michael Christen / www.yacy.net ]";
public static final String hline = "-------------------------------------------------------------------------------";
/**
* a reference to the {@link plasmaSwitchboard} created by the
* {@link yacy#startup(String, long, long)} method.
*/
private static plasmaSwitchboard sb = null;
/**
* Semaphore needed by {@link yacy#setUpdaterCallback(serverUpdaterCallback)} to block
* until the {@link plasmaSwitchboard }object was created.
*/
private static serverSemaphore sbSync = new serverSemaphore(0);
/**
* Semaphore needed by {@link yacy#waitForFinishedStartup()} to block
* until startup has finished
*/
private static serverSemaphore startupFinishedSync = new serverSemaphore(0);
/**
* Starts up the whole application. Sets up all datastructures and starts
* the main threads.
*
* @param homePath Root-path where all information is to be found.
* @param startupFree free memory at startup time, to be used later for statistics
*/
private static void startup(String homePath, long startupMemFree, long startupMemTotal) {
int oldRev=0;
int newRev=0;
try {
// start up
System.out.println(copyright);
System.out.println(hline);
// check java version
try {
/*String[] check =*/ "a,b".split(","); // split needs java 1.4
} catch (NoSuchMethodError e) {
System.err.println("STARTUP: Java Version too low. You need at least Java 1.4.2 to run YaCy");
Thread.sleep(3000);
System.exit(-1);
}
// ensure that there is a DATA directory, if not, create one and if that fails warn and die
File f = new File(homePath); if (!(f.exists())) f.mkdirs();
f = new File(homePath, "DATA/"); if (!(f.exists())) f.mkdirs();
if (!(f.exists())) {
System.err.println("Error creating DATA-directory in " + homePath.toString() + " . Please check your write-permission for this folder. YaCy will now terminate.");
System.exit(-1);
}
// setting up logging
f = new File(homePath, "DATA/LOG/"); if (!(f.exists())) f.mkdirs();
if (!((new File(homePath, "DATA/LOG/yacy.logging")).exists())) try {
serverFileUtils.copy(new File(homePath, "yacy.logging"), new File(homePath, "DATA/LOG/yacy.logging"));
}catch (IOException e){
System.out.println("could not copy yacy.logging");
}
try{
serverLog.configureLogging(homePath,new File(homePath, "DATA/LOG/yacy.logging"));
} catch (IOException e) {
System.out.println("could not find logging properties in homePath=" + homePath);
e.printStackTrace();
}
serverLog.logConfig("STARTUP", "Java version: " + System.getProperty("java.version", "no-java-version"));
serverLog.logConfig("STARTUP", "Operation system: " + System.getProperty("os.name","unknown"));
serverLog.logConfig("STARTUP", "Application root-ath: " + homePath);
serverLog.logConfig("STARTUP", "Time zone: UTC" + serverDate.UTCDiffString() + "; UTC+0000 is " + System.currentTimeMillis());
serverLog.logConfig("STARTUP", "Maximum file system path length: " + serverSystem.maxPathLength);
f = new File(homePath, "DATA/yacy.running");
if (f.exists()) { // another instance running? VM crash? User will have to care about this
serverLog.logSevere("STARTUP", "WARNING: the file " + f + " exists, this usually means that a YaCy instance is still running");
f.delete();
}
f.createNewFile();
f.deleteOnExit();
pro = new File(homePath, "libx").exists();
sb = new plasmaSwitchboard(homePath, "yacy.init", "DATA/SETTINGS/httpProxy.conf", pro);
sbSync.V(); // signal that the sb reference was set
// save information about available memory at startup time
sb.setConfig("memoryFreeAfterStartup", startupMemFree);
sb.setConfig("memoryTotalAfterStartup", startupMemTotal);
// hardcoded, forced, temporary value-migration
sb.setConfig("htTemplatePath", "htroot/env/templates");
sb.setConfig("parseableExt", "html,htm,txt,php,shtml,asp");
// if we are running an SVN version, we try to detect the used svn revision now ...
final Properties buildProp = new Properties();
File buildPropFile = null;
try {
buildPropFile = new File(homePath,"build.properties");
buildProp.load(new FileInputStream(buildPropFile));
} catch (Exception e) {
serverLog.logWarning("STARTUP", buildPropFile.toString() + " not found in settings path");
}
oldRev=Integer.parseInt(sb.getConfig("svnRevision", "0"));
try {
if (buildProp.containsKey("releaseNr")) {
// this normally looks like this: $Revision$
final String svnReleaseNrStr = buildProp.getProperty("releaseNr");
final Pattern pattern = Pattern.compile("\\$Revision:\\s(.*)\\s\\$",Pattern.DOTALL+Pattern.CASE_INSENSITIVE);
final Matcher matcher = pattern.matcher(svnReleaseNrStr);
if (matcher.find()) {
final String svrReleaseNr = matcher.group(1);
try {
try {version = Double.parseDouble(vString);} catch (NumberFormatException e) {version = (float) 0.1;}
version = yacyVersion.versvn2combinedVersion(version, Integer.parseInt(svrReleaseNr));
} catch (NumberFormatException e) {}
sb.setConfig("svnRevision", svrReleaseNr);
}
}
newRev=Integer.parseInt(sb.getConfig("svnRevision", "0"));
} catch (Exception e) {
System.err.println("Unable to determine the currently used SVN revision number.");
}
sb.setConfig("version", Double.toString(version));
sb.setConfig("vString", yacyVersion.combined2prettyVersion(Double.toString(version)));
sb.setConfig("vdate", (vDATE.startsWith("@")) ? serverDate.shortDayTime() : vDATE);
sb.setConfig("applicationRoot", homePath);
serverLog.logConfig("STARTUP", "YACY Version: " + version + ", Built " + sb.getConfig("vdate", "00000000"));
yacyVersion.latestRelease = version;
// read environment
int timeout = Math.max(20000, Integer.parseInt(sb.getConfig("httpdTimeout", "20000")));
// create some directories
final File htRootPath = new File(homePath, sb.getConfig("htRootPath", "htroot"));
final File htDocsPath = new File(homePath, sb.getConfig("htDocsPath", "DATA/HTDOCS"));
if (!(htDocsPath.exists())) htDocsPath.mkdir();
//final File htTemplatePath = new File(homePath, sb.getConfig("htTemplatePath","htdocs"));
// create default notifier picture
//TODO: Use templates instead of copying images ...
if (!((new File(htDocsPath, "notifier.gif")).exists())) try {
serverFileUtils.copy(new File(htRootPath, "env/grafics/empty.gif"),
new File(htDocsPath, "notifier.gif"));
} catch (IOException e) {}
final 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" +
"\r\n").getBytes(), htdocsDefaultReadme);} catch (IOException e) {
System.out.println("Error creating htdocs readme: " + e.getMessage());
}
final File wwwDefaultPath = new File(htDocsPath, "www");
if (!(wwwDefaultPath.exists())) wwwDefaultPath.mkdir();
final File shareDefaultPath = new File(htDocsPath, "share");
if (!(shareDefaultPath.exists())) shareDefaultPath.mkdir();
migration.migrate(sb, oldRev, newRev);
// start main threads
final String port = sb.getConfig("port", "8080");
try {
final httpd protocolHandler = new httpd(sb);
final serverCore server = new serverCore(
timeout /*control socket timeout in milliseconds*/,
true /* block attacks (wrong protocol) */,
protocolHandler /*command class*/,
sb,
30000 /*command max length incl. GET args*/);
server.setName("httpd:"+port);
server.setPriority(Thread.MAX_PRIORITY);
server.setObeyIntermission(false);
if (server == null) {
serverLog.logSevere("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", null, server, 0, 0, 0, 0);
//server.start();
// open the browser window
final boolean browserPopUpTrigger = sb.getConfig("browserPopUpTrigger", "true").equals("true");
if (browserPopUpTrigger) {
String browserPopUpPage = sb.getConfig("browserPopUpPage", "ConfigBasic.html");
boolean properPW = (sb.getConfig("adminAccount", "").length() == 0) && (sb.getConfig(httpd.ADMIN_ACCOUNT_B64MD5, "").length() > 0);
if (!properPW) browserPopUpPage = "ConfigBasic.html";
final String browserPopUpApplication = sb.getConfig("browserPopUpApplication", "netscape");
serverSystem.openBrowser((server.withSSL()?"https":"http") + "://localhost:" + serverCore.getPortNr(port) + "/" + browserPopUpPage, browserPopUpApplication);
}
// Copy the shipped locales into DATA, existing files are overwritten
final File locale_work = new File(homePath, sb.getConfig("locale.work", "DATA/LOCALE/locales"));
final File locale_source = new File(homePath, sb.getConfig("locale.source", "locales"));
try{
final File[] locale_source_files = locale_source.listFiles();
locale_work.mkdirs();
File target;
for (int i=0; i < locale_source_files.length; i++){
target = new File(locale_work, locale_source_files[i].getName());
if (locale_source_files[i].getName().endsWith(".lng")) {
if (target.exists()) target.delete();
serverFileUtils.copy(locale_source_files[i], target);
}
}
serverLog.logInfo("STARTUP", "Copied the default locales to " + locale_work.toString());
}catch(NullPointerException e){
serverLog.logSevere("STARTUP", "Nullpointer Exception while copying the default Locales");
}
//regenerate Locales from Translationlist, if needed
final String lang = sb.getConfig("locale.language", "");
if (!lang.equals("") && !lang.equals("default")) { //locale is used
String currentRev = "";
try{
final BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(new File(sb.getConfig("locale.translated_html", "DATA/LOCALE/htroot"), lang+"/version" ))));
currentRev = br.readLine();
br.close();
}catch(IOException e){
//Error
}
if (!currentRev.equals(sb.getConfig("svnRevision", ""))) try { //is this another version?!
final File sourceDir = new File(sb.getConfig("htRootPath", "htroot"));
final File destDir = new File(sb.getConfig("locale.translated_html", "DATA/LOCALE/htroot"), lang);
if (translator.translateFilesRecursive(sourceDir, destDir, new File(locale_work, lang + ".lng"), "html,template,inc", "locale")){ //translate it
//write the new Versionnumber
final BufferedWriter bw = new BufferedWriter(new PrintWriter(new FileWriter(new File(destDir, "version"))));
bw.write(sb.getConfig("svnRevision", "Error getting Version"));
bw.close();
}
} catch (IOException e) {}
}
// initialize number formatter with this locale
yFormatter.setLocale(lang);
// registering shutdown hook
serverLog.logConfig("STARTUP", "Registering Shutdown Hook");
final Runtime run = Runtime.getRuntime();
run.addShutdownHook(new shutdownHookThread(Thread.currentThread(), sb));
// save information about available memory after all initializations
//try {
sb.setConfig("memoryFreeAfterInitBGC", Runtime.getRuntime().freeMemory());
sb.setConfig("memoryTotalAfterInitBGC", Runtime.getRuntime().totalMemory());
System.gc();
sb.setConfig("memoryFreeAfterInitAGC", Runtime.getRuntime().freeMemory());
sb.setConfig("memoryTotalAfterInitAGC", Runtime.getRuntime().totalMemory());
//} catch (ConcurrentModificationException e) {}
// signal finished startup
startupFinishedSync.V();
// wait for server shutdown
try {
sb.waitForShutdown();
} catch (Exception e) {
serverLog.logSevere("MAIN CONTROL LOOP", "PANIC: " + e.getMessage(),e);
}
// shut down
serverLog.logConfig("SHUTDOWN", "caught termination signal");
server.terminate(false);
server.interrupt();
if (server.isAlive()) try {
yacyURL u = new yacyURL((server.withSSL()?"https":"http")+"://localhost:" + serverCore.getPortNr(port), null);
httpc.wget(u, u.getHost(), 1000, null, null, null, null, null); // kick server
serverLog.logConfig("SHUTDOWN", "sent termination signal to server socket");
} catch (IOException ee) {
serverLog.logConfig("SHUTDOWN", "termination signal to server socket missed (server shutdown, ok)");
}
// idle until the processes are down
while (server.isAlive()) {
Thread.sleep(2000); // wait a while
}
serverLog.logConfig("SHUTDOWN", "server has terminated");
sb.close();
}
} catch (Exception e) {
serverLog.logSevere("STARTUP", "Unexpected Error: " + e.getClass().getName(),e);
//System.exit(1);
}
} catch (Exception ee) {
serverLog.logSevere("STARTUP", "FATAL ERROR: " + ee.getMessage(),ee);
} finally {
startupFinishedSync.V();
}
serverLog.logConfig("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)
}
/**
* Loads the configuration from the data-folder.
* FIXME: Why is this called over and over again from every method, instead
* of setting the configurationdata once for this class in main?
*
* @param mes Where are we called from, so that the errormessages can be
* more descriptive.
* @param homePath Root-path where all the information is to be found.
* @return Properties read from the configurationfile.
*/
private static Properties configuration(String mes, String homePath) {
serverLog.logConfig(mes, "Application Root Path: " + homePath.toString());
// read data folder
File dataFolder = new File(homePath, "DATA");
if (!(dataFolder.exists())) {
serverLog.logSevere(mes, "Application was never started or root path wrong.");
System.exit(-1);
}
Properties config = new Properties();
try {
config.load(new FileInputStream(new File(homePath, "DATA/SETTINGS/httpProxy.conf")));
} catch (FileNotFoundException e) {
serverLog.logSevere(mes, "could not find configuration file.");
System.exit(-1);
} catch (IOException e) {
serverLog.logSevere(mes, "could not read configuration file.");
System.exit(-1);
}
return config;
}
public static void shutdown() {
if (sb != null) {
// YaCy is running in the same runtime. we can shutdown via interrupt
sb.terminate();
} else {
String applicationRoot = System.getProperty("user.dir").replace('\\', '/');
shutdown(applicationRoot);
}
}
/**
* Call the shutdown-page of YaCy to tell it to shut down. This method is
* called if you start yacy with the argument -shutdown.
*
* @param homePath Root-path where all the information is to be found.
*/
static void shutdown(String homePath) {
// start up
System.out.println(copyright);
System.out.println(hline);
Properties config = configuration("REMOTE-SHUTDOWN", homePath);
// read port
int port = serverCore.getPortNr(config.getProperty("port", "8080"));
// read password
String encodedPassword = (String) config.get(httpd.ADMIN_ACCOUNT_B64MD5);
if (encodedPassword == null) encodedPassword = ""; // not defined
// send 'wget' to web interface
httpHeader requestHeader = new httpHeader();
requestHeader.put("Authorization", "realm=" + encodedPassword); // for http-authentify
try {
httpc con = new httpc("localhost", "localhost", port, 10000, false, null, null, null);
httpc.response res = con.GET("Steering.html?shutdown=", requestHeader);
// read response
if (res.status.startsWith("2")) {
serverLog.logConfig("REMOTE-SHUTDOWN", "YACY accepted shutdown command.");
serverLog.logConfig("REMOTE-SHUTDOWN", "Stand by for termination, which may last some seconds.");
ByteArrayOutputStream bos = new ByteArrayOutputStream();
res.writeContent(bos, null);
con.close();
} else {
serverLog.logSevere("REMOTE-SHUTDOWN", "error response from YACY socket: " + res.status);
con.close();
System.exit(-1);
}
} catch (IOException e) {
serverLog.logSevere("REMOTE-SHUTDOWN", "could not establish connection to YACY socket: " + e.getMessage());
System.exit(-1);
}
// finished
serverLog.logConfig("REMOTE-SHUTDOWN", "SUCCESSFULLY FINISHED remote-shutdown:");
serverLog.logConfig("REMOTE-SHUTDOWN", "YACY will terminate after working off all enqueued tasks.");
}
/**
* This method gets all found words and outputs a statistic about the score
* of the words. The output of this method can be used to create stop-word
* lists. This method will be called if you start yacy with the argument
* -genwordstat.
* FIXME: How can stop-word list be created from this output? What type of
* score is output?
*
* @param homePath Root-Path where all the information is to be found.
*/
private static void genWordstat(String homePath) {
// start up
System.out.println(copyright);
System.out.println(hline);
Properties config = configuration("GEN-WORDSTAT", homePath);
// load words
serverLog.logInfo("GEN-WORDSTAT", "loading words...");
HashMap words = loadWordMap(new File(homePath, "yacy.words"));
// find all hashes
serverLog.logInfo("GEN-WORDSTAT", "searching all word-hash databases...");
File dbRoot = new File(homePath, config.getProperty("dbPath"));
enumerateFiles ef = new enumerateFiles(new File(dbRoot, "WORDS"), true, false, true, true);
File f;
String h;
kelondroMScoreCluster hs = new kelondroMScoreCluster();
while (ef.hasMoreElements()) {
f = (File) ef.nextElement();
h = f.getName().substring(0, yacySeedDB.commonHashLength);
hs.addScore(h, (int) f.length());
}
// list the hashes in reverse order
serverLog.logInfo("GEN-WORDSTAT", "listing words in reverse size order...");
String w;
Iterator i = hs.scores(false);
while (i.hasNext()) {
h = (String) i.next();
w = (String) words.get(h);
if (w == null) System.out.print("# " + h); else System.out.print(w);
System.out.println(" - " + hs.getScore(h));
}
// finished
serverLog.logConfig("GEN-WORDSTAT", "FINISHED");
}
/**
* @param homePath path to the YaCy directory
* @param dbcache cache size in MB
*/
public static void minimizeUrlDB(String homePath) {
// run with "java -classpath classes yacy -minimizeUrlDB"
try {serverLog.configureLogging(homePath,new File(homePath, "DATA/LOG/yacy.logging"));} catch (Exception e) {}
File indexPrimaryRoot = new File(new File(homePath), "DATA/INDEX");
File indexSecondaryRoot = new File(new File(homePath), "DATA/INDEX");
File indexRoot2 = new File(new File(homePath), "DATA/INDEX2");
serverLog log = new serverLog("URL-CLEANUP");
try {
log.logInfo("STARTING URL CLEANUP");
// db containing all currently loades urls
plasmaCrawlLURL currentUrlDB = new plasmaCrawlLURL(indexSecondaryRoot, 10000);
// db used to hold all neede urls
plasmaCrawlLURL minimizedUrlDB = new plasmaCrawlLURL(indexRoot2, 10000);
Runtime rt = Runtime.getRuntime();
int cacheMem = (int)(serverMemory.max-rt.totalMemory());
if (cacheMem < 2048000) throw new OutOfMemoryError("Not enough memory available to start clean up.");
plasmaWordIndex wordIndex = new plasmaWordIndex(indexPrimaryRoot, indexSecondaryRoot, 10000, log);
Iterator indexContainerIterator = wordIndex.wordContainers("AAAAAAAAAAAA", false, false);
long urlCounter = 0, wordCounter = 0;
long wordChunkStart = System.currentTimeMillis(), wordChunkEnd = 0;
String wordChunkStartHash = "AAAAAAAAAAAA", wordChunkEndHash;
while (indexContainerIterator.hasNext()) {
indexContainer wordIdxContainer = null;
try {
wordCounter++;
wordIdxContainer = (indexContainer) indexContainerIterator.next();
// the combined container will fit, read the container
Iterator wordIdxEntries = wordIdxContainer.entries();
indexRWIEntry iEntry;
while (wordIdxEntries.hasNext()) {
iEntry = (indexRWIEntry) wordIdxEntries.next();
String urlHash = iEntry.urlHash();
if ((currentUrlDB.exists(urlHash)) && (!minimizedUrlDB.exists(urlHash))) try {
indexURLEntry urlEntry = currentUrlDB.load(urlHash, null);
urlCounter++;
minimizedUrlDB.store(urlEntry);
if (urlCounter % 500 == 0) {
log.logInfo(urlCounter + " URLs found so far.");
}
} catch (IOException e) {}
}
if (wordCounter%500 == 0) {
wordChunkEndHash = wordIdxContainer.getWordHash();
wordChunkEnd = System.currentTimeMillis();
long duration = wordChunkEnd - wordChunkStart;
log.logInfo(wordCounter + " words scanned " +
"[" + wordChunkStartHash + " .. " + wordChunkEndHash + "]\n" +
"Duration: "+ 500*1000/duration + " words/s" +
" | Free memory: " + rt.freeMemory() +
" | Total memory: " + rt.totalMemory());
wordChunkStart = wordChunkEnd;
wordChunkStartHash = wordChunkEndHash;
}
// we have read all elements, now we can close it
wordIdxContainer = null;
} catch (Exception e) {
log.logSevere("Exception", e);
} finally {
if (wordIdxContainer != null) try { wordIdxContainer = null; } catch (Exception e) {}
}
}
log.logInfo("current LURL DB contains " + currentUrlDB.size() + " entries.");
log.logInfo("mimimized LURL DB contains " + minimizedUrlDB.size() + " entries.");
currentUrlDB.close();
minimizedUrlDB.close();
wordIndex.close();
// TODO: rename the mimimized UrlDB to the name of the previous UrlDB
log.logInfo("FINISHED URL CLEANUP, WAIT FOR DUMP");
log.logInfo("You can now backup your old URL DB and rename minimized/urlHash.db to urlHash.db");
log.logInfo("TERMINATED URL CLEANUP");
} catch (Exception e) {
log.logSevere("Exception: " + e.getMessage(), e);
} catch (Error e) {
log.logSevere("Error: " + e.getMessage(), e);
}
}
/**
* Reads all words from the given file and creates a hashmap, where key is
* the plasma word hash and value is the word itself.
*
* @param wordlist File where the words are stored.
* @return HashMap with the hash-word - relation.
*/
private static HashMap loadWordMap(File wordlist) {
// returns a hash-word - Relation
HashMap wordmap = new HashMap();
try {
String word;
BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(wordlist)));
while ((word = br.readLine()) != null) wordmap.put(plasmaCondenser.word2hash(word),word);
br.close();
} catch (IOException e) {}
return wordmap;
}
/**
* Cleans a wordlist in a file according to the length of the words. The
* file with the given filename is read and then only the words in the given
* length-range are written back to the file.
*
* @param wordlist Name of the file the words are stored in.
* @param minlength Minimal needed length for each word to be stored.
* @param maxlength Maximal allowed length for each word to be stored.
*/
private static void cleanwordlist(String wordlist, int minlength, int maxlength) {
// start up
System.out.println(copyright);
System.out.println(hline);
serverLog.logConfig("CLEAN-WORDLIST", "START");
String word;
TreeSet wordset = new TreeSet();
int count = 0;
try {
BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(wordlist)));
String seps = "' .,:/-&";
while ((word = br.readLine()) != null) {
word = word.toLowerCase().trim();
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++;
}
br.close();
if (wordset.size() != count) {
count = count - wordset.size();
BufferedWriter bw = new BufferedWriter(new PrintWriter(new FileWriter(wordlist)));
while (wordset.size() > 0) {
word = (String) wordset.first();
bw.write(word + "\n");
wordset.remove(word);
}
bw.close();
serverLog.logInfo("CLEAN-WORDLIST", "shrinked wordlist by " + count + " words.");
} else {
serverLog.logInfo("CLEAN-WORDLIST", "not necessary to change wordlist");
}
} catch (IOException e) {
serverLog.logSevere("CLEAN-WORDLIST", "ERROR: " + e.getMessage());
System.exit(-1);
}
// finished
serverLog.logConfig("CLEAN-WORDLIST", "FINISHED");
}
private static void transferCR(String targetaddress, String crfile) {
File f = new File(crfile);
try {
byte[] b = serverFileUtils.read(f);
String result = yacyClient.transfer(targetaddress, f.getName(), b);
if (result == null)
serverLog.logInfo("TRANSFER-CR", "transmitted file " + crfile + " to " + targetaddress + " successfully");
else
serverLog.logInfo("TRANSFER-CR", "error transmitting file " + crfile + " to " + targetaddress + ": " + result);
} catch (IOException e) {
serverLog.logInfo("TRANSFER-CR", "could not read file " + crfile);
}
}
/**
* Generates a text file containing all domains in this peer's DB.
* This may be useful to calculate the YaCy-Blockrank.
*
* @param format String which determines the format of the file. Possible values: "html", "zip", "gzip" or "plain"
* @see urllist
*/
private static void domlist(String homePath, String source, String format, String targetName) {
File root = new File(homePath);
try {
final plasmaSwitchboard sb = new plasmaSwitchboard(homePath, "yacy.init", "DATA/SETTINGS/httpProxy.conf", false);
HashMap doms = new HashMap();
System.out.println("Started domain list extraction from " + sb.wordIndex.loadedURL.size() + " url entries.");
System.out.println("a dump will be written after double-check of all extracted domains.");
System.out.println("This process may fail in case of too less memory. To increase memory, start with");
System.out.println("java -Xmx<megabytes>m -classpath classes yacy -domlist [ -source { nurl | lurl | eurl } ] [ -format { text | zip | gzip | html } ] [ <path to DATA folder> ]");
int c = 0;
long start = System.currentTimeMillis();
if (source.equals("lurl")) {
Iterator eiter = sb.wordIndex.loadedURL.entries(true, null);
indexURLEntry entry;
while (eiter.hasNext()) {
try {
entry = (indexURLEntry) eiter.next();
indexURLEntry.Components comp = entry.comp();
if ((entry != null) && (comp.url() != null)) doms.put(comp.url().getHost(), null);
} catch (Exception e) {
// here a MalformedURLException may occur
// just ignore
}
c++;
if (c % 10000 == 0) System.out.println(
c + " urls checked, " +
doms.size() + " domains collected, " +
((Runtime.getRuntime().maxMemory() - Runtime.getRuntime().totalMemory() + Runtime.getRuntime().freeMemory()) / 1024 / 1024) + " MB available, " +
((System.currentTimeMillis() - start) * (sb.wordIndex.loadedURL.size() - c) / c / 60000) + " minutes remaining.");
}
}
if (source.equals("eurl")) {
Iterator eiter = sb.crawlQueues.errorURL.entries(true, null);
plasmaCrawlZURL.Entry entry;
while (eiter.hasNext()) {
try {
entry = (plasmaCrawlZURL.Entry) eiter.next();
if ((entry != null) && (entry.url() != null)) doms.put(entry.url().getHost(), entry.anycause());
} catch (Exception e) {
// here a MalformedURLException may occur
// just ignore
}
c++;
if (c % 10000 == 0) System.out.println(
c + " urls checked, " +
doms.size() + " domains collected, " +
((Runtime.getRuntime().maxMemory() - Runtime.getRuntime().totalMemory() + Runtime.getRuntime().freeMemory()) / 1024 / 1024) + " MB available, " +
((System.currentTimeMillis() - start) * (sb.wordIndex.loadedURL.size() - c) / c / 60000) + " minutes remaining.");
}
}
if (source.equals("nurl")) {
Iterator eiter = sb.crawlQueues.noticeURL.iterator(plasmaCrawlNURL.STACK_TYPE_CORE);
plasmaCrawlEntry entry;
while (eiter.hasNext()) {
try {
entry = (plasmaCrawlEntry) eiter.next();
if ((entry != null) && (entry.url() != null)) doms.put(entry.url().getHost(), "profile=" + entry.profileHandle() + ", depth=" + entry.depth());
} catch (Exception e) {
// here a MalformedURLException may occur
// just ignore
}
c++;
if (c % 10000 == 0) System.out.println(
c + " urls checked, " +
doms.size() + " domains collected, " +
((Runtime.getRuntime().maxMemory() - Runtime.getRuntime().totalMemory() + Runtime.getRuntime().freeMemory()) / 1024 / 1024) + " MB available, " +
((System.currentTimeMillis() - start) * (sb.wordIndex.loadedURL.size() - c) / c / 60000) + " minutes remaining.");
}
}
if (format.equals("html")) {
// output file in HTML format
File file = new File(root, targetName + ".html");
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));
System.out.println("Started domain list dump to file " + file);
Iterator i = doms.entrySet().iterator();
Map.Entry entry;
String key;
bos.write(("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">").getBytes());
bos.write(serverCore.crlf);
bos.write(("<html><head><title>YaCy " + source + " domainlist</title></head><body>").getBytes());
bos.write(serverCore.crlf);
while (i.hasNext()) {
entry = (Map.Entry) i.next();
key = (String) entry.getKey();
bos.write(("<a href=\"http://" + key + "\">" + key + "</a>" +
((entry.getValue() == null) ? "" : (" " + ((String) entry.getValue()))) + "<br>"
).getBytes());
bos.write(serverCore.crlf);
}
bos.write(("</body></html>").getBytes());
bos.close();
} else if (format.equals("zip")) {
// output file in plain text but compressed with ZIP
File file = new File(root, targetName + ".zip");
System.out.println("Started domain list dump to file " + file);
serverFileUtils.saveSet(file, "zip", doms.keySet(), new String(serverCore.crlf));
} else if (format.equals("gzip")) {
// output file in plain text but compressed with GZIP
File file = new File(root, targetName + ".txt.gz");
System.out.println("Started domain list dump to file " + file);
serverFileUtils.saveSet(file, "gzip", doms.keySet(), new String(serverCore.crlf));
} else {
// plain text list
File file = new File(root, targetName + ".txt");
System.out.println("Started domain list dump to file " + file);
serverFileUtils.saveSet(file, "plain", doms.keySet(), new String(serverCore.crlf));
}
sb.close();
} catch (IOException e) {
e.printStackTrace();
}
}
private static void urllist(String homePath, String source, boolean html, String targetName) {
File root = new File(homePath);
try {
final plasmaSwitchboard sb = new plasmaSwitchboard(homePath, "yacy.init", "DATA/SETTINGS/httpProxy.conf", false);
File file = new File(root, targetName);
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));
if (source.equals("lurl")) {
Iterator eiter = sb.wordIndex.loadedURL.entries(true, null);
indexURLEntry entry;
while (eiter.hasNext()) {
entry = (indexURLEntry) eiter.next();
indexURLEntry.Components comp = entry.comp();
if ((entry != null) && (comp.url() != null)) {
if (html) {
bos.write(("<a href=\"" + comp.url().toNormalform(false, true) + "\">" + comp.title() + "</a><br>").getBytes("UTF-8"));
bos.write(serverCore.crlf);
} else {
bos.write(comp.url().toNormalform(false, true).getBytes());
bos.write(serverCore.crlf);
}
}
}
}
if (source.equals("eurl")) {
Iterator eiter = sb.crawlQueues.errorURL.entries(true, null);
plasmaCrawlZURL.Entry entry;
while (eiter.hasNext()) {
entry = (plasmaCrawlZURL.Entry) eiter.next();
if ((entry != null) && (entry.url() != null)) {
if (html) {
bos.write(("<a href=\"" + entry.url() + "\">" + entry.url() + "</a> " + entry.anycause() + "<br>").getBytes("UTF-8"));
bos.write(serverCore.crlf);
} else {
bos.write(entry.url().toString().getBytes());
bos.write(serverCore.crlf);
}
}
}
}
if (source.equals("nurl")) {
Iterator eiter = sb.crawlQueues.noticeURL.iterator(plasmaCrawlNURL.STACK_TYPE_CORE);
plasmaCrawlEntry entry;
while (eiter.hasNext()) {
entry = (plasmaCrawlEntry) eiter.next();
if ((entry != null) && (entry.url() != null)) {
if (html) {
bos.write(("<a href=\"" + entry.url() + "\">" + entry.url() + "</a> " + "profile=" + entry.profileHandle() + ", depth=" + entry.depth() + "<br>").getBytes("UTF-8"));
bos.write(serverCore.crlf);
} else {
bos.write(entry.url().toString().getBytes());
bos.write(serverCore.crlf);
}
}
}
}
bos.close();
sb.close();
} catch (IOException e) {
e.printStackTrace();
}
}
private static String[] shift(String[] args, int pos, int count) {
String[] newargs = new String[args.length - count];
System.arraycopy(args, 0, newargs, 0, pos);
System.arraycopy(args, pos + count, newargs, pos, args.length - pos - count);
return newargs;
}
/**
* Uses an Iteration over urlHash.db to detect malformed URL-Entries.
* Damaged URL-Entries will be marked in a HashSet and removed at the end of the function.
*
* @param homePath Root-Path where all information is to be found.
*/
private static void urldbcleanup(String homePath) {
File root = new File(homePath);
File indexroot = new File(root, "DATA/INDEX");
try {serverLog.configureLogging(homePath,new File(homePath, "DATA/LOG/yacy.logging"));} catch (Exception e) {}
plasmaCrawlLURL currentUrlDB = new plasmaCrawlLURL(indexroot, 10000);
currentUrlDB.urldbcleanup();
currentUrlDB.close();
}
private static void RWIHashList(String homePath, String targetName, String resource, String format) {
plasmaWordIndex WordIndex = null;
serverLog log = new serverLog("HASHLIST");
File indexPrimaryRoot = new File(new File(homePath), "DATA/INDEX");
File indexSecondaryRoot = new File(new File(homePath), "DATA/INDEX");
String wordChunkStartHash = "AAAAAAAAAAAA";
try {serverLog.configureLogging(homePath,new File(homePath, "DATA/LOG/yacy.logging"));} catch (Exception e) {}
log.logInfo("STARTING CREATION OF RWI-HASHLIST");
File root = new File(homePath);
try {
Iterator indexContainerIterator = null;
if (resource.equals("all")) {
WordIndex = new plasmaWordIndex(indexPrimaryRoot, indexSecondaryRoot, 3000, log);
indexContainerIterator = WordIndex.wordContainers(wordChunkStartHash, false, false);
}
int counter = 0;
indexContainer container = null;
if (format.equals("zip")) {
log.logInfo("Writing Hashlist to ZIP-file: " + targetName + ".zip");
ZipEntry zipEntry = new ZipEntry(targetName + ".txt");
File file = new File(root, targetName + ".zip");
ZipOutputStream bos = new ZipOutputStream(new FileOutputStream(file));
bos.putNextEntry(zipEntry);
while (indexContainerIterator.hasNext()) {
counter++;
container = (indexContainer) indexContainerIterator.next();
bos.write((container.getWordHash()).getBytes());
bos.write(serverCore.crlf);
if (counter % 500 == 0) {
log.logInfo("Found " + counter + " Hashs until now. Last found Hash: " + container.getWordHash());
}
}
bos.flush();
bos.close();
} else {
log.logInfo("Writing Hashlist to TXT-file: " + targetName + ".txt");
File file = new File(root, targetName + ".txt");
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));
while (indexContainerIterator.hasNext()) {
counter++;
container = (indexContainer) indexContainerIterator.next();
bos.write((container.getWordHash()).getBytes());
bos.write(serverCore.crlf);
if (counter % 500 == 0) {
log.logInfo("Found " + counter + " Hashs until now. Last found Hash: " + container.getWordHash());
}
}
bos.flush();
bos.close();
}
log.logInfo("Total number of Hashs: " + counter + ". Last found Hash: " + container.getWordHash());
} catch (IOException e) {
log.logSevere("IOException", e);
}
if (WordIndex != null) {
WordIndex.close();
WordIndex = null;
}
}
/**
* Searching for peers affected by Bug
* @param homePath
*/
public static void testPeerDB(String homePath) {
try {
File yacyDBPath = new File(new File(homePath), "DATA/YACYDB");
String[] dbFileNames = {"seed.new.db","seed.old.db","seed.pot.db"};
for (int i=0; i < dbFileNames.length; i++) {
File dbFile = new File(yacyDBPath,dbFileNames[i]);
kelondroMapObjects db = new kelondroMapObjects(new kelondroDyn(dbFile, true, true, 3000, yacySeedDB.commonHashLength, 480, '#', kelondroBase64Order.enhancedCoder, true, false, true), 500, yacySeedDB.sortFields, yacySeedDB.longaccFields, yacySeedDB.doubleaccFields, null, null);
kelondroMapObjects.mapIterator it;
it = db.maps(true, false);
while (it.hasNext()) {
Map dna = (Map) it.next();
String peerHash = (String) dna.get("key");
if (peerHash.length() < yacySeedDB.commonHashLength) {
String peerName = (String) dna.get("Name");
String peerIP = (String) dna.get("IP");
String peerPort = (String) dna.get("Port");
while (peerHash.length() < yacySeedDB.commonHashLength) { peerHash = peerHash + "_"; }
System.err.println("Invalid Peer-Hash found in '" + dbFileNames[i] + "': " + peerName + ":" + peerHash + ", http://" + peerIP + ":" + peerPort);
}
}
db.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Main-method which is started by java. Checks for special arguments or
* starts up the application.
*
* @param args
* Given arguments from the command line.
*/
public static void main(String args[]) {
// check assertion status
//ClassLoader.getSystemClassLoader().setDefaultAssertionStatus(true);
boolean assertionenabled = false;
assert assertionenabled = true;
if (assertionenabled) System.out.println("Asserts are enabled");
// check memory amount
System.gc();
long startupMemFree = Runtime.getRuntime().freeMemory(); // the amount of free memory in the Java Virtual Machine
long startupMemTotal = Runtime.getRuntime().totalMemory(); // the total amount of memory in the Java virtual machine; may vary over time
serverMemory.available(); // force initialization of class serverMemory
// go into headless awt mode
System.setProperty("java.awt.headless", "true");
//which XML Parser?
// if(System.getProperty("javax.xml.parsers.DocumentBuilderFactory")==null){
// System.setProperty("javax.xml.parsers.DocumentBuilderFactory", "org.apache.crimson.jaxp.DocumentBuilderFactoryImpl");
// }
// if(System.getProperty("javax.xml.parsers.SAXParserFactory")==null){
// System.setProperty("javax.xml.parsers.SAXParserFactory", "org.apache.crimson.jaxp.SAXParserFactoryImpl");
// }
String applicationRoot = System.getProperty("user.dir").replace('\\', '/');
//System.out.println("args.length=" + args.length);
//System.out.print("args=["); for (int i = 0; i < args.length; i++) System.out.print(args[i] + ", "); System.out.println("]");
if ((args.length >= 1) && ((args[0].toLowerCase().equals("-startup")) || (args[0].equals("-start")))) {
// normal start-up of yacy
if (args.length == 2) applicationRoot= args[1];
startup(applicationRoot, startupMemFree, startupMemTotal);
} else if ((args.length >= 1) && ((args[0].toLowerCase().equals("-shutdown")) || (args[0].equals("-stop")))) {
// normal shutdown of yacy
if (args.length == 2) applicationRoot= args[1];
shutdown(applicationRoot);
} else if ((args.length >= 1) && (args[0].toLowerCase().equals("-minimizeurldb"))) {
// migrate words from DATA/PLASMADB/WORDS path to assortment cache, if possible
// attention: this may run long and should not be interrupted!
if (args.length >= 3 && args[1].toLowerCase().equals("-cache")) {
args = shift(args, 1, 2);
}
if (args.length == 2) applicationRoot= args[1];
minimizeUrlDB(applicationRoot);
} else if ((args.length >= 1) && (args[0].toLowerCase().equals("-testpeerdb"))) {
if (args.length == 2) {
applicationRoot= args[1];
} else if (args.length > 2) {
System.err.println("Usage: -testPeerDB [homeDbRoot]");
}
testPeerDB(applicationRoot);
} else if ((args.length >= 1) && (args[0].toLowerCase().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>]"
if (args.length == 2) applicationRoot= args[1];
genWordstat(applicationRoot);
} else if ((args.length == 4) && (args[0].toLowerCase().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>"
int minlength = Integer.parseInt(args[2]);
int maxlength = Integer.parseInt(args[3]);
cleanwordlist(args[1], minlength, maxlength);
} else if ((args.length >= 1) && (args[0].toLowerCase().equals("-transfercr"))) {
// transfer a single cr file to a remote peer
String targetaddress = args[1];
String crfile = args[2];
transferCR(targetaddress, crfile);
} else if ((args.length >= 1) && (args[0].toLowerCase().equals("-domlist"))) {
// generate a url list and save it in a file
String source = "lurl";
if (args.length >= 3 && args[1].toLowerCase().equals("-source")) {
if ((args[2].equals("nurl")) ||
(args[2].equals("lurl")) ||
(args[2].equals("eurl")))
source = args[2];
args = shift(args, 1, 2);
}
String format = "txt";
if (args.length >= 3 && args[1].toLowerCase().equals("-format")) {
if ((args[2].equals("html")) ||
(args[2].equals("zip")) ||
(args[2].equals("gzip")))
format = args[2];
args = shift(args, 1, 2);
}
if (args.length == 2) applicationRoot= args[1];
String outfile = "domlist_" + source + "_" + System.currentTimeMillis();
domlist(applicationRoot, source, format, outfile);
} else if ((args.length >= 1) && (args[0].toLowerCase().equals("-urllist"))) {
// generate a url list and save it in a file
String source = "lurl";
if (args.length >= 3 && args[1].toLowerCase().equals("-source")) {
if ((args[2].equals("nurl")) ||
(args[2].equals("lurl")) ||
(args[2].equals("eurl")))
source = args[2];
args = shift(args, 1, 2);
}
boolean html = false;
if (args.length >= 3 && args[1].toLowerCase().equals("-format")) {
if (args[2].equals("html")) html = true;
args = shift(args, 1, 2);
}
if (args.length == 2) applicationRoot= args[1];
String outfile = "urllist_" + source + "_" + System.currentTimeMillis() + ((html) ? ".html" : ".txt");
urllist(applicationRoot, source, html, outfile);
} else if ((args.length >= 1) && (args[0].toLowerCase().equals("-urldbcleanup"))) {
// generate a url list and save it in a file
if (args.length == 2) applicationRoot= args[1];
urldbcleanup(applicationRoot);
} else if ((args.length >= 1) && (args[0].toLowerCase().equals("-rwihashlist"))) {
// generate a url list and save it in a file
String domain = "all";
String format = "txt";
if (args.length >= 2) domain= args[1];
if (args.length >= 3) format= args[2];
if (args.length == 4) applicationRoot= args[3];
String outfile = "rwihashlist_" + System.currentTimeMillis();
RWIHashList(applicationRoot, outfile, domain, format);
} else {
if (args.length == 1) applicationRoot= args[0];
startup(applicationRoot, startupMemFree, startupMemTotal);
}
}
}
/**
* This class is a helper class whose instance is started, when the java virtual
* machine shuts down. Signals the plasmaSwitchboard to shut down.
*/
class shutdownHookThread extends Thread {
private plasmaSwitchboard sb = null;
private Thread mainThread = null;
public shutdownHookThread(Thread mainThread, plasmaSwitchboard sb) {
super();
this.sb = sb;
this.mainThread = mainThread;
}
public void run() {
try {
if (!this.sb.isTerminated()) {
serverLog.logConfig("SHUTDOWN","Shutdown via shutdown hook.");
// sending the yacy main thread a shutdown signal
serverLog.logFine("SHUTDOWN","Signaling shutdown to the switchboard.");
this.sb.terminate();
// waiting for the yacy thread to finish execution
serverLog.logFine("SHUTDOWN","Waiting for main thread to finish.");
if (this.mainThread.isAlive() && !this.sb.isTerminated()) {
this.mainThread.join();
}
}
} catch (Exception e) {
serverLog.logSevere("SHUTDOWN","Unexpected error. " + e.getClass().getName(),e);
}
}
}