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26a46b5521
yacy_search_server/source/de/anomic/plasma/plasmaWordIndex.java
orbiter 26a46b5521 increased default maximum file size for database files to 2GB 
Other file sizes can now be configured with the attributes
filesize.max.win and filesize.max.other
the default maximum file size for non-windows OS is now 32GB

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5974 6c8d7289-2bf4-0310-a012-ef5d649a1542
2009-05-25 06:59:21 +00:00

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// plasmaWordIndex.java
// (C) 2005, 2006 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
// first published 2005 on http://www.anomic.de
//
// This is a part of YaCy, a peer-to-peer based web search engine
//
// $LastChangedDate$
// $LastChangedRevision$
// $LastChangedBy$
//
// LICENSE
//
// 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
package de.anomic.plasma;
import java.io.File;
import java.io.IOException;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
import de.anomic.crawler.CrawlProfile;
import de.anomic.crawler.IndexingStack;
import de.anomic.data.Blacklist;
import de.anomic.htmlFilter.htmlFilterContentScraper;
import de.anomic.http.httpdProxyCacheEntry;
import de.anomic.kelondro.order.Base64Order;
import de.anomic.kelondro.order.ByteOrder;
import de.anomic.kelondro.text.BufferedIndex;
import de.anomic.kelondro.text.IndexCell;
import de.anomic.kelondro.text.ReferenceContainer;
import de.anomic.kelondro.text.IODispatcher;
import de.anomic.kelondro.text.MetadataRepository;
import de.anomic.kelondro.text.ReferenceFactory;
import de.anomic.kelondro.text.metadataPrototype.URLMetadataRow;
import de.anomic.kelondro.text.referencePrototype.WordReference;
import de.anomic.kelondro.text.referencePrototype.WordReferenceFactory;
import de.anomic.kelondro.text.referencePrototype.WordReferenceRow;
import de.anomic.kelondro.util.FileUtils;
import de.anomic.kelondro.util.kelondroException;
import de.anomic.kelondro.util.Log;
import de.anomic.plasma.parser.Word;
import de.anomic.plasma.parser.Condenser;
import de.anomic.tools.iso639;
import de.anomic.xml.RSSFeed;
import de.anomic.xml.RSSMessage;
import de.anomic.yacy.yacySeedDB;
import de.anomic.yacy.yacyURL;
public final class plasmaWordIndex {
// environment constants
public static final long wCacheMaxAge = 1000 * 60 * 30; // milliseconds; 30 minutes
public static final int wCacheMaxChunk = 800; // maximum number of references for each urlhash
public static final int lowcachedivisor = 900;
public static final long targetFileSize = 256 * 1024 * 1024; // 256 MB
public static final int writeBufferSize = 4 * 1024 * 1024;
// the reference factory
public static final ReferenceFactory<WordReference> wordReferenceFactory = new WordReferenceFactory();
public static final String CRAWL_PROFILE_PROXY = "proxy";
public static final String CRAWL_PROFILE_REMOTE = "remote";
public static final String CRAWL_PROFILE_SNIPPET_LOCAL_TEXT = "snippetLocalText";
public static final String CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT = "snippetGlobalText";
public static final String CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA = "snippetLocalMedia";
public static final String CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA = "snippetGlobalMedia";
public static final String CRAWL_PROFILE_SURROGATE = "surrogates";
public static final String DBFILE_ACTIVE_CRAWL_PROFILES = "crawlProfilesActive.heap";
public static final String DBFILE_PASSIVE_CRAWL_PROFILES = "crawlProfilesPassive.heap";
public static final long CRAWL_PROFILE_PROXY_RECRAWL_CYCLE = 60L * 24L;
public static final long CRAWL_PROFILE_SNIPPET_LOCAL_TEXT_RECRAWL_CYCLE = 60L * 24L * 30L;
public static final long CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT_RECRAWL_CYCLE = 60L * 24L * 30L;
public static final long CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA_RECRAWL_CYCLE = 60L * 24L * 30L;
public static final long CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA_RECRAWL_CYCLE = 60L * 24L * 30L;
public static final long CRAWL_PROFILE_SURROGATE_RECRAWL_CYCLE = 60L * 24L * 30L;
public static final ByteOrder wordOrder = Base64Order.enhancedCoder;
private final BufferedIndex<WordReference> index;
private final Log log;
private MetadataRepository metadata;
private final yacySeedDB peers;
private final File primaryRoot, secondaryRoot;
public IndexingStack queuePreStack;
public CrawlProfile profilesActiveCrawls, profilesPassiveCrawls;
public CrawlProfile.entry defaultProxyProfile;
public CrawlProfile.entry defaultRemoteProfile;
public CrawlProfile.entry defaultTextSnippetLocalProfile, defaultTextSnippetGlobalProfile;
public CrawlProfile.entry defaultMediaSnippetLocalProfile, defaultMediaSnippetGlobalProfile;
public CrawlProfile.entry defaultSurrogateProfile;
private final File queuesRoot;
private IODispatcher<WordReference> merger;
public plasmaWordIndex(
final String networkName,
final Log log,
final File indexPrimaryRoot,
final File indexSecondaryRoot,
final int entityCacheMaxSize,
final long maxFileSize,
final int redundancy,
final int partitionExponent) throws IOException {
log.logInfo("Initializing Word Index for the network '" + networkName + "', word hash cache size is " + Word.hashCacheSize + ".");
if (networkName == null || networkName.length() == 0) {
log.logSevere("no network name given - shutting down");
System.exit(0);
}
this.log = log;
this.primaryRoot = new File(indexPrimaryRoot, networkName);
this.secondaryRoot = new File(indexSecondaryRoot, networkName);
File indexPrimaryTextLocation = new File(this.primaryRoot, "TEXT");
if (!indexPrimaryTextLocation.exists()) {
// patch old index locations; the secondary path is patched in plasmaCrawlLURL
final File oldPrimaryPath = new File(new File(indexPrimaryRoot, "PUBLIC"), "TEXT");
final File oldPrimaryTextLocation = new File(new File(indexPrimaryRoot, "PUBLIC"), "TEXT");
if (oldPrimaryPath.exists() && oldPrimaryTextLocation.exists()) {
// move the text folder from the old location to the new location
assert !indexPrimaryTextLocation.exists();
indexPrimaryTextLocation.mkdirs();
if (oldPrimaryTextLocation.renameTo(indexPrimaryTextLocation)) {
FileUtils.deletedelete(oldPrimaryPath);
} else {
indexPrimaryTextLocation = oldPrimaryTextLocation; // emergency case: stay with old directory
}
}
}
this.merger = new IODispatcher<WordReference>(plasmaWordIndex.wordReferenceFactory, 1, 1, writeBufferSize);
this.merger.start();
this.index = new IndexCell<WordReference>(
new File(indexPrimaryTextLocation, "RICELL"),
wordReferenceFactory,
wordOrder,
WordReferenceRow.urlEntryRow,
entityCacheMaxSize,
targetFileSize,
maxFileSize,
this.merger,
writeBufferSize);
// migrate LURL-db files into new subdirectory METADATA
File textdir = new File(this.secondaryRoot, "TEXT");
File metadatadir = new File(textdir, "METADATA");
if (!metadatadir.exists()) metadatadir.mkdirs();
String[] l = textdir.list();
for (int i = 0; i < l.length; i++) {
if (l[i].startsWith("urls.")) (new File(textdir, l[i])).renameTo(new File(metadatadir, l[i]));
}
// create LURL-db
metadata = new MetadataRepository(metadatadir);
// make crawl profiles database and default profiles
this.queuesRoot = new File(this.primaryRoot, "QUEUES");
this.queuesRoot.mkdirs();
this.log.logConfig("Initializing Crawl Profiles");
final File profilesActiveFile = new File(queuesRoot, DBFILE_ACTIVE_CRAWL_PROFILES);
if (!profilesActiveFile.exists()) {
// migrate old file
final File oldFile = new File(new File(queuesRoot.getParentFile().getParentFile().getParentFile(), "PLASMADB"), "crawlProfilesActive1.db");
if (oldFile.exists()) oldFile.renameTo(profilesActiveFile);
}
try {
this.profilesActiveCrawls = new CrawlProfile(profilesActiveFile);
} catch (IOException e) {
FileUtils.deletedelete(profilesActiveFile);
try {
this.profilesActiveCrawls = new CrawlProfile(profilesActiveFile);
} catch (IOException e1) {
e1.printStackTrace();
this.profilesActiveCrawls = null;
}
}
initActiveCrawlProfiles();
log.logInfo("Loaded active crawl profiles from file " + profilesActiveFile.getName() +
", " + this.profilesActiveCrawls.size() + " entries" +
", " + profilesActiveFile.length()/1024);
final File profilesPassiveFile = new File(queuesRoot, DBFILE_PASSIVE_CRAWL_PROFILES);
if (!profilesPassiveFile.exists()) {
// migrate old file
final File oldFile = new File(new File(queuesRoot.getParentFile().getParentFile().getParentFile(), "PLASMADB"), "crawlProfilesPassive1.db");
if (oldFile.exists()) oldFile.renameTo(profilesPassiveFile);
}
try {
this.profilesPassiveCrawls = new CrawlProfile(profilesPassiveFile);
} catch (IOException e) {
FileUtils.deletedelete(profilesPassiveFile);
try {
this.profilesPassiveCrawls = new CrawlProfile(profilesPassiveFile);
} catch (IOException e1) {
e1.printStackTrace();
this.profilesPassiveCrawls = null;
}
}
log.logInfo("Loaded passive crawl profiles from file " + profilesPassiveFile.getName() +
", " + this.profilesPassiveCrawls.size() + " entries" +
", " + profilesPassiveFile.length()/1024);
// init queues
final File preStackFile = new File(queuesRoot, "urlNoticePreStack");
if (!preStackFile.exists()) {
// migrate old file
final File oldFile = new File(new File(queuesRoot.getParentFile().getParentFile().getParentFile(), "PLASMADB"), "switchboardQueue.stack");
if (oldFile.exists()) oldFile.renameTo(preStackFile);
}
this.queuePreStack = new IndexingStack(this, preStackFile, this.profilesActiveCrawls);
// create or init seed cache
final File networkRoot = new File(this.primaryRoot, "NETWORK");
networkRoot.mkdirs();
final File mySeedFile = new File(networkRoot, yacySeedDB.DBFILE_OWN_SEED);
final File oldSeedFile = new File(new File(indexPrimaryRoot.getParentFile(), "YACYDB"), "mySeed.txt");
if (oldSeedFile.exists()) oldSeedFile.renameTo(mySeedFile);
peers = new yacySeedDB(
networkRoot,
"seed.new.heap",
"seed.old.heap",
"seed.pot.heap",
mySeedFile,
redundancy,
partitionExponent);
}
public MetadataRepository metadata() {
return this.metadata;
}
public yacySeedDB peers() {
return this.peers;
}
public BufferedIndex<WordReference> index() {
return this.index;
}
public void clear() {
try {
index.clear();
metadata.clear();
} catch (final IOException e) {
e.printStackTrace();
}
queuePreStack.clear();
}
private void initActiveCrawlProfiles() {
this.defaultProxyProfile = null;
this.defaultRemoteProfile = null;
this.defaultTextSnippetLocalProfile = null;
this.defaultTextSnippetGlobalProfile = null;
this.defaultMediaSnippetLocalProfile = null;
this.defaultMediaSnippetGlobalProfile = null;
this.defaultSurrogateProfile = null;
final Iterator<CrawlProfile.entry> i = this.profilesActiveCrawls.profiles(true);
CrawlProfile.entry profile;
String name;
try {
while (i.hasNext()) {
profile = i.next();
name = profile.name();
if (name.equals(CRAWL_PROFILE_PROXY)) this.defaultProxyProfile = profile;
if (name.equals(CRAWL_PROFILE_REMOTE)) this.defaultRemoteProfile = profile;
if (name.equals(CRAWL_PROFILE_SNIPPET_LOCAL_TEXT)) this.defaultTextSnippetLocalProfile = profile;
if (name.equals(CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT)) this.defaultTextSnippetGlobalProfile = profile;
if (name.equals(CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA)) this.defaultMediaSnippetLocalProfile = profile;
if (name.equals(CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA)) this.defaultMediaSnippetGlobalProfile = profile;
if (name.equals(CRAWL_PROFILE_SURROGATE)) this.defaultSurrogateProfile = profile;
}
} catch (final Exception e) {
this.profilesActiveCrawls.clear();
this.defaultProxyProfile = null;
this.defaultRemoteProfile = null;
this.defaultTextSnippetLocalProfile = null;
this.defaultTextSnippetGlobalProfile = null;
this.defaultMediaSnippetLocalProfile = null;
this.defaultMediaSnippetGlobalProfile = null;
this.defaultSurrogateProfile = null;
}
if (this.defaultProxyProfile == null) {
// generate new default entry for proxy crawling
this.defaultProxyProfile = this.profilesActiveCrawls.newEntry("proxy", null, CrawlProfile.KEYWORDS_PROXY, CrawlProfile.MATCH_ALL, CrawlProfile.MATCH_NEVER,
0 /*Integer.parseInt(getConfig(PROXY_PREFETCH_DEPTH, "0"))*/,
this.profilesActiveCrawls.getRecrawlDate(CRAWL_PROFILE_PROXY_RECRAWL_CYCLE), -1, -1, false,
true /*getConfigBool(PROXY_INDEXING_LOCAL_TEXT, true)*/,
true /*getConfigBool(PROXY_INDEXING_LOCAL_MEDIA, true)*/,
true, true,
false /*getConfigBool(PROXY_INDEXING_REMOTE, false)*/, true, true, true);
}
if (this.defaultRemoteProfile == null) {
// generate new default entry for remote crawling
defaultRemoteProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_REMOTE, null, CrawlProfile.KEYWORDS_REMOTE, CrawlProfile.MATCH_ALL, CrawlProfile.MATCH_NEVER, 0,
-1, -1, -1, true, true, true, false, true, false, true, true, false);
}
if (this.defaultTextSnippetLocalProfile == null) {
// generate new default entry for snippet fetch and optional crawling
defaultTextSnippetLocalProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_SNIPPET_LOCAL_TEXT, null, CrawlProfile.KEYWORDS_SNIPPET, CrawlProfile.MATCH_ALL, CrawlProfile.MATCH_NEVER, 0,
this.profilesActiveCrawls.getRecrawlDate(CRAWL_PROFILE_SNIPPET_LOCAL_TEXT_RECRAWL_CYCLE), -1, -1, true, false, false, false, false, false, true, true, false);
}
if (this.defaultTextSnippetGlobalProfile == null) {
// generate new default entry for snippet fetch and optional crawling
defaultTextSnippetGlobalProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT, null, CrawlProfile.KEYWORDS_SNIPPET, CrawlProfile.MATCH_ALL, CrawlProfile.MATCH_NEVER, 0,
this.profilesActiveCrawls.getRecrawlDate(CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT_RECRAWL_CYCLE), -1, -1, true, true, true, true, true, false, true, true, false);
}
if (this.defaultMediaSnippetLocalProfile == null) {
// generate new default entry for snippet fetch and optional crawling
defaultMediaSnippetLocalProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA, null, CrawlProfile.KEYWORDS_SNIPPET, CrawlProfile.MATCH_ALL, CrawlProfile.MATCH_NEVER, 0,
this.profilesActiveCrawls.getRecrawlDate(CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA_RECRAWL_CYCLE), -1, -1, true, false, false, false, false, false, true, true, false);
}
if (this.defaultMediaSnippetGlobalProfile == null) {
// generate new default entry for snippet fetch and optional crawling
defaultMediaSnippetGlobalProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA, null, CrawlProfile.KEYWORDS_SNIPPET, CrawlProfile.MATCH_ALL, CrawlProfile.MATCH_NEVER, 0,
this.profilesActiveCrawls.getRecrawlDate(CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA_RECRAWL_CYCLE), -1, -1, true, false, true, true, true, false, true, true, false);
}
if (this.defaultSurrogateProfile == null) {
// generate new default entry for surrogate parsing
defaultSurrogateProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_SURROGATE, null, CrawlProfile.KEYWORDS_SNIPPET, CrawlProfile.MATCH_ALL, CrawlProfile.MATCH_NEVER, 0,
this.profilesActiveCrawls.getRecrawlDate(CRAWL_PROFILE_SURROGATE_RECRAWL_CYCLE), -1, -1, true, true, false, false, false, false, true, true, false);
}
}
private void resetProfiles() {
final File pdb = new File(this.queuesRoot, DBFILE_ACTIVE_CRAWL_PROFILES);
if (pdb.exists()) FileUtils.deletedelete(pdb);
try {
profilesActiveCrawls = new CrawlProfile(pdb);
} catch (IOException e) {
e.printStackTrace();
}
initActiveCrawlProfiles();
}
public boolean cleanProfiles() throws InterruptedException {
if (queuePreStack.size() > 0) return false;
final Iterator<CrawlProfile.entry> iter = profilesActiveCrawls.profiles(true);
CrawlProfile.entry entry;
boolean hasDoneSomething = false;
try {
while (iter.hasNext()) {
// check for interruption
if (Thread.currentThread().isInterrupted()) throw new InterruptedException("Shutdown in progress");
// getting next profile
entry = iter.next();
if (!((entry.name().equals(CRAWL_PROFILE_PROXY)) ||
(entry.name().equals(CRAWL_PROFILE_REMOTE)) ||
(entry.name().equals(CRAWL_PROFILE_SNIPPET_LOCAL_TEXT)) ||
(entry.name().equals(CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT)) ||
(entry.name().equals(CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA)) ||
(entry.name().equals(CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA)) ||
(entry.name().equals(CRAWL_PROFILE_SURROGATE)))) {
profilesPassiveCrawls.newEntry(entry.map());
iter.remove();
hasDoneSomething = true;
}
}
} catch (final kelondroException e) {
resetProfiles();
hasDoneSomething = true;
}
return hasDoneSomething;
}
public File getLocation(final boolean primary) {
return (primary) ? this.primaryRoot : this.secondaryRoot;
}
/**
* this is called by the switchboard to put in a new page into the index
* use all the words in one condenser object to simultanous create index entries
*
* @param url
* @param urlModified
* @param document
* @param condenser
* @param language
* @param doctype
* @param outlinksSame
* @param outlinksOther
* @return
*/
public int addPageIndex(final yacyURL url, final Date urlModified, final plasmaParserDocument document, final Condenser condenser, final String language, final char doctype, final int outlinksSame, final int outlinksOther) {
int wordCount = 0;
final int urlLength = url.toNormalform(true, true).length();
final int urlComps = htmlFilterContentScraper.urlComps(url.toString()).length;
// iterate over all words of context text
final Iterator<Map.Entry<String, Word>> i = condenser.words().entrySet().iterator();
Map.Entry<String, Word> wentry;
String word;
int len = (document == null) ? urlLength : document.dc_title().length();
WordReferenceRow ientry = new WordReferenceRow(url.hash(),
urlLength, urlComps, len,
condenser.RESULT_NUMB_WORDS,
condenser.RESULT_NUMB_SENTENCES,
urlModified.getTime(),
System.currentTimeMillis(),
language,
doctype,
outlinksSame, outlinksOther);
Word wprop;
while (i.hasNext()) {
wentry = i.next();
word = wentry.getKey();
wprop = wentry.getValue();
assert (wprop.flags != null);
ientry.setWord(wprop);
try {
this.index.add(Word.word2hash(word), ientry);
} catch (IOException e) {
e.printStackTrace();
}
wordCount++;
}
return wordCount;
}
public void close() {
if (this.merger != null) this.merger.terminate();
index.close();
metadata.close();
peers.close();
profilesActiveCrawls.close();
queuePreStack.close();
}
public URLMetadataRow storeDocument(final IndexingStack.QueueEntry entry, final plasmaParserDocument document, final Condenser condenser) throws IOException {
final long startTime = System.currentTimeMillis();
// CREATE INDEX
// load some document metadata
final String dc_title = document.dc_title();
final yacyURL referrerURL = entry.referrerURL();
final Date docDate = entry.getModificationDate();
// do a identification of the language
String language = condenser.language(); // this is a statistical analysation of the content: will be compared with other attributes
String bymetadata = document.dc_language(); // the languageByMetadata may return null if there was no declaration
if (language == null) {
// no statistics available, we take either the metadata (if given) or the TLD
language = (bymetadata == null) ? entry.url().language() : bymetadata;
System.out.println("*** DEBUG LANGUAGE-BY-STATISTICS: " + entry.url() + " FAILED, taking " + ((bymetadata == null) ? "TLD" : "metadata") + ": " + language);
} else {
if (bymetadata == null) {
// two possible results: compare and report conflicts
if (language.equals(entry.url().language()))
System.out.println("*** DEBUG LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFIRMED - TLD IDENTICAL: " + language);
else {
String error = "*** DEBUG LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFLICTING: " + language + " (the language given by the TLD is " + entry.url().language() + ")";
// see if we have a hint in the url that the statistic was right
String u = entry.url().toNormalform(true, false).toLowerCase();
if (!u.contains("/" + language + "/") && !u.contains("/" + iso639.country(language).toLowerCase() + "/")) {
// no confirmation using the url, use the TLD
language = entry.url().language();
System.out.println(error + ", corrected using the TLD");
} else {
// this is a strong hint that the statistics was in fact correct
System.out.println(error + ", but the url proves that the statistic is correct");
}
}
} else {
// here we have three results: we can do a voting
if (language.equals(bymetadata)) {
//System.out.println("*** DEBUG LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFIRMED - METADATA IDENTICAL: " + language);
} else if (language.equals(entry.url().language())) {
//System.out.println("*** DEBUG LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFIRMED - TLD IS IDENTICAL: " + language);
} else if (bymetadata.equals(entry.url().language())) {
//System.out.println("*** DEBUG LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFLICTING: " + language + " BUT METADATA AND TLD ARE IDENTICAL: " + bymetadata + ")");
language = bymetadata;
} else {
//System.out.println("*** DEBUG LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFLICTING: ALL DIFFERENT! statistic: " + language + ", metadata: " + bymetadata + ", TLD: + " + entry.url().language() + ". taking metadata.");
language = bymetadata;
}
}
}
// create a new loaded URL db entry
final long ldate = System.currentTimeMillis();
final URLMetadataRow newEntry = new URLMetadataRow(
entry.url(), // URL
dc_title, // document description
document.dc_creator(), // author
document.dc_subject(' '), // tags
"", // ETag
docDate, // modification date
new Date(), // loaded date
new Date(ldate + Math.max(0, ldate - docDate.getTime()) / 2), // freshdate, computed with Proxy-TTL formula
(referrerURL == null) ? null : referrerURL.hash(), // referer hash
new byte[0], // md5
(int) entry.size(), // size
condenser.RESULT_NUMB_WORDS, // word count
httpdProxyCacheEntry.docType(document.dc_format()), // doctype
condenser.RESULT_FLAGS, // flags
language, // language
document.inboundLinks(), // inbound links
document.outboundLinks(), // outbound links
document.getAudiolinks().size(), // laudio
document.getImages().size(), // limage
document.getVideolinks().size(), // lvideo
document.getApplinks().size() // lapp
);
// STORE URL TO LOADED-URL-DB
metadata.store(newEntry); // TODO: should be serialized; integrated in IODispatcher
final long storageEndTime = System.currentTimeMillis();
// STORE PAGE INDEX INTO WORD INDEX DB
final int words = addPageIndex(
entry.url(), // document url
docDate, // document mod date
document, // document content
condenser, // document condenser
language, // document language
httpdProxyCacheEntry.docType(document.dc_format()), // document type
document.inboundLinks(), // inbound links
document.outboundLinks() // outbound links
);
final long indexingEndTime = System.currentTimeMillis();
if (log.isInfo()) {
// TODO: UTF-8 docDescription seems not to be displayed correctly because
// of string concatenation
log.logInfo("*Indexed " + words + " words in URL " + entry.url() +
" [" + entry.urlHash() + "]" +
"\n\tDescription: " + dc_title +
"\n\tMimeType: " + document.dc_format() + " | Charset: " + document.getCharset() + " | " +
"Size: " + document.getTextLength() + " bytes | " +
"Anchors: " + ((document.getAnchors() == null) ? 0 : document.getAnchors().size()) +
"\n\tLinkStorageTime: " + (storageEndTime - startTime) + " ms | " +
"indexStorageTime: " + (indexingEndTime - storageEndTime) + " ms");
RSSFeed.channels((entry.initiator().equals(peers.mySeed().hash)) ? RSSFeed.LOCALINDEXING : RSSFeed.REMOTEINDEXING).addMessage(new RSSMessage("Indexed web page", dc_title, entry.url().toNormalform(true, false)));
}
// finished
return newEntry;
}
@SuppressWarnings("unchecked")
public HashMap<byte[], ReferenceContainer<WordReference>>[] localSearchContainers(
final TreeSet<byte[]> queryHashes,
final TreeSet<byte[]> excludeHashes,
final Set<String> urlselection) {
// search for the set of hashes and return a map of of wordhash:indexContainer containing the seach result
// retrieve entities that belong to the hashes
HashMap<byte[], ReferenceContainer<WordReference>> inclusionContainers =
(queryHashes.size() == 0) ?
new HashMap<byte[], ReferenceContainer<WordReference>>(0) :
getContainers(queryHashes, urlselection);
if ((inclusionContainers.size() != 0) && (inclusionContainers.size() < queryHashes.size())) inclusionContainers = new HashMap<byte[], ReferenceContainer<WordReference>>(0); // prevent that only a subset is returned
final HashMap<byte[], ReferenceContainer<WordReference>> exclusionContainers =
(inclusionContainers.size() == 0) ?
new HashMap<byte[], ReferenceContainer<WordReference>>(0) :
getContainers(excludeHashes, urlselection);
return new HashMap[]{inclusionContainers, exclusionContainers};
}
/**
* collect containers for given word hashes. This collection stops if a single container does not contain any references.
* In that case only a empty result is returned.
* @param wordHashes
* @param urlselection
* @return map of wordhash:indexContainer
*/
private HashMap<byte[], ReferenceContainer<WordReference>> getContainers(final TreeSet<byte[]> wordHashes, final Set<String> urlselection) {
// retrieve entities that belong to the hashes
final HashMap<byte[], ReferenceContainer<WordReference>> containers = new HashMap<byte[], ReferenceContainer<WordReference>>(wordHashes.size());
byte[] singleHash;
ReferenceContainer<WordReference> singleContainer;
final Iterator<byte[]> i = wordHashes.iterator();
while (i.hasNext()) {
// get next word hash:
singleHash = i.next();
// retrieve index
try {
singleContainer = index.get(singleHash, urlselection);
} catch (IOException e) {
e.printStackTrace();
continue;
}
// check result
if ((singleContainer == null || singleContainer.size() == 0)) return new HashMap<byte[], ReferenceContainer<WordReference>>(0);
containers.put(singleHash, singleContainer);
}
return containers;
}
// The Cleaner class was provided as "UrldbCleaner" by Hydrox
public synchronized ReferenceCleaner getReferenceCleaner(final byte[] startHash) {
return new ReferenceCleaner(startHash);
}
public class ReferenceCleaner extends Thread {
private final byte[] startHash;
private boolean run = true;
private boolean pause = false;
public int rwiCountAtStart = 0;
public byte[] wordHashNow = null;
public byte[] lastWordHash = null;
public int lastDeletionCounter = 0;
public ReferenceCleaner(final byte[] startHash) {
this.startHash = startHash;
this.rwiCountAtStart = index().size();
}
public void run() {
Log.logInfo("INDEXCLEANER", "IndexCleaner-Thread started");
ReferenceContainer<WordReference> container = null;
WordReference entry = null;
yacyURL url = null;
final HashSet<String> urlHashs = new HashSet<String>();
try {
Iterator<ReferenceContainer<WordReference>> indexContainerIterator = index.references(startHash, false, 100, false).iterator();
while (indexContainerIterator.hasNext() && run) {
waiter();
container = indexContainerIterator.next();
final Iterator<WordReference> containerIterator = container.entries();
wordHashNow = container.getTermHash();
while (containerIterator.hasNext() && run) {
waiter();
entry = containerIterator.next();
// System.out.println("Wordhash: "+wordHash+" UrlHash:
// "+entry.getUrlHash());
final URLMetadataRow ue = metadata.load(entry.metadataHash(), entry, 0);
if (ue == null) {
urlHashs.add(entry.metadataHash());
} else {
url = ue.metadata().url();
if ((url == null) || (plasmaSwitchboard.urlBlacklist.isListed(Blacklist.BLACKLIST_CRAWLER, url) == true)) {
urlHashs.add(entry.metadataHash());
}
}
}
if (urlHashs.size() > 0) try {
final int removed = index.remove(container.getTermHash(), urlHashs);
Log.logFine("INDEXCLEANER", container.getTermHashAsString() + ": " + removed + " of " + container.size() + " URL-entries deleted");
lastWordHash = container.getTermHash();
lastDeletionCounter = urlHashs.size();
urlHashs.clear();
} catch (IOException e) {
e.printStackTrace();
}
if (!containerIterator.hasNext()) {
// We may not be finished yet, try to get the next chunk of wordHashes
final TreeSet<ReferenceContainer<WordReference>> containers = index.references(container.getTermHash(), false, 100, false);
indexContainerIterator = containers.iterator();
// Make sure we don't get the same wordhash twice, but don't skip a word
if ((indexContainerIterator.hasNext()) && (!container.getTermHash().equals(indexContainerIterator.next().getTermHash()))) {
indexContainerIterator = containers.iterator();
}
}
}
} catch (final IOException e) {
e.printStackTrace();
} catch (final Exception e) {
e.printStackTrace();
}
Log.logInfo("INDEXCLEANER", "IndexCleaner-Thread stopped");
}
public void abort() {
synchronized(this) {
run = false;
this.notifyAll();
}
}
public void pause() {
synchronized (this) {
if (!pause) {
pause = true;
Log.logInfo("INDEXCLEANER", "IndexCleaner-Thread paused");
}
}
}
public void endPause() {
synchronized (this) {
if (pause) {
pause = false;
this.notifyAll();
Log.logInfo("INDEXCLEANER", "IndexCleaner-Thread resumed");
}
}
}
public void waiter() {
synchronized (this) {
if (this.pause) {
try {
this.wait();
} catch (final InterruptedException e) {
this.run = false;
return;
}
}
}
}
}
}
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