// Fulltext.java
// (C) 2006 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
// first published 2006 as part of 'plasmaCrawlLURL.java' on http://yacy.net
//
// This is a part of YaCy, a peer-to-peer based web search engine
//
// 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 net.yacy.search.index;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.net.MalformedURLException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.regex.Pattern;
import net.yacy.cora.date.GenericFormatter;
import net.yacy.cora.date.ISO8601Formatter;
import net.yacy.cora.document.ASCII;
import net.yacy.cora.document.MultiProtocolURI;
import net.yacy.cora.federate.solr.connector.AbstractSolrConnector;
import net.yacy.cora.federate.solr.connector.EmbeddedSolrConnector;
import net.yacy.cora.federate.solr.connector.RemoteSolrConnector;
import net.yacy.cora.federate.solr.connector.ShardSelection;
import net.yacy.cora.federate.solr.connector.SolrConnector;
import net.yacy.cora.federate.solr.instance.EmbeddedInstance;
import net.yacy.cora.federate.solr.instance.InstanceMirror;
import net.yacy.cora.federate.solr.instance.RemoteInstance;
import net.yacy.cora.federate.solr.instance.ShardInstance;
import net.yacy.cora.order.CloneableIterator;
import net.yacy.cora.sorting.ReversibleScoreMap;
import net.yacy.cora.sorting.ScoreMap;
import net.yacy.cora.sorting.WeakPriorityBlockingQueue;
import net.yacy.cora.storage.ZIPReader;
import net.yacy.cora.storage.ZIPWriter;
import net.yacy.document.parser.html.CharacterCoding;
import net.yacy.kelondro.data.meta.DigestURI;
import net.yacy.kelondro.data.meta.URIMetadataNode;
import net.yacy.kelondro.data.meta.URIMetadataRow;
import net.yacy.kelondro.data.word.WordReferenceVars;
import net.yacy.kelondro.index.Cache;
import net.yacy.kelondro.index.Index;
import net.yacy.kelondro.index.Row;
import net.yacy.kelondro.logging.Log;
import net.yacy.kelondro.table.SplitTable;
import net.yacy.kelondro.util.MemoryControl;
import net.yacy.search.Switchboard;
import net.yacy.search.schema.CollectionConfiguration;
import net.yacy.search.schema.CollectionSchema;
import net.yacy.search.schema.WebgraphConfiguration;
import net.yacy.search.schema.WebgraphSchema;
import org.apache.commons.httpclient.util.DateUtil;
import org.apache.solr.common.SolrDocument;
import org.apache.solr.common.SolrException;
import org.apache.solr.common.SolrInputDocument;
import org.apache.lucene.util.Version;
import org.apache.solr.core.CoreContainer;
public final class Fulltext {
private static final String SOLR_PATH = "solr_40"; // the number should be identical to the number in the property luceneMatchVersion in solrconfig.xml
private static final String SOLR_OLD_PATH[] = new String[]{"solr_36"};
// class objects
private final File segmentPath;
private Index urlIndexFile;
private Export exportthread; // will have a export thread assigned if exporter is running
private String tablename;
private ArrayList<HostStat> statsDump;
private InstanceMirror solrInstances;
private final CollectionConfiguration collectionConfiguration;
private final WebgraphConfiguration webgraphConfiguration;
protected Fulltext(final File segmentPath, final CollectionConfiguration collectionConfiguration, final WebgraphConfiguration webgraphConfiguration) {
this.segmentPath = segmentPath;
this.tablename = null;
this.urlIndexFile = null;
this.exportthread = null; // will have a export thread assigned if exporter is running
this.statsDump = null;
this.solrInstances = new InstanceMirror();
this.collectionConfiguration = collectionConfiguration;
this.webgraphConfiguration = webgraphConfiguration;
}
/**
* @deprecated
* used only for migration
* @return the connected URLDb
*/
@Deprecated
public Index getURLDb() {
return this.urlIndexFile;
}
/**
* true if old metadata index URLDb is connected.
* used only for migration
* @deprecated
* current and future versions use Solr for metadata
*/
@Deprecated
public boolean connectedURLDb() {
return this.urlIndexFile != null;
}
protected void connectUrlDb(final String tablename, final boolean useTailCache, final boolean exceed134217727) {
if (this.urlIndexFile != null) return;
this.tablename = tablename;
this.urlIndexFile = new SplitTable(new File(this.segmentPath, "default"), tablename, URIMetadataRow.rowdef, useTailCache, exceed134217727);
// SplitTable always returns != null, even if no file exists.
// as old UrlDb should be null if not exist, check and close if empty
// TODO: check if a SplitTable.open() returning null or error status on not existing file is preferable
if (this.urlIndexFile.isEmpty()) {
disconnectUrlDb();
}
}
public void disconnectUrlDb() {
if (this.urlIndexFile == null) return;
this.urlIndexFile.close();
this.urlIndexFile = null;
}
public CollectionConfiguration getDefaultConfiguration() {
return this.collectionConfiguration;
}
public WebgraphConfiguration getWebgraphConfiguration() {
return this.webgraphConfiguration;
}
public boolean connectedLocalSolr() {
return this.solrInstances.isConnected0();
}
public void connectLocalSolr() throws IOException {
File solrLocation = new File(this.segmentPath, SOLR_PATH);
// migrate old solr to new
for (String oldVersion: SOLR_OLD_PATH) {
File oldLocation = new File(this.segmentPath, oldVersion);
if (oldLocation.exists()) oldLocation.renameTo(solrLocation);
}
assert CoreContainer.DEFAULT_DEFAULT_CORE_NAME.equals(CollectionSchema.CORE_NAME); // check that solr and we use the same default core name
EmbeddedInstance localCollectionInstance = new EmbeddedInstance(new File(new File(Switchboard.getSwitchboard().appPath, "defaults"), "solr"), solrLocation, CollectionSchema.CORE_NAME, new String[]{CollectionSchema.CORE_NAME, WebgraphSchema.CORE_NAME});
EmbeddedSolrConnector localCollectionConnector = new EmbeddedSolrConnector(localCollectionInstance);
Version luceneVersion = localCollectionConnector.getConfig().getLuceneVersion("luceneMatchVersion");
String lvn = luceneVersion.name();
Log.logInfo("Fulltext", "using lucene version " + lvn);
int p = lvn.indexOf('_');
assert SOLR_PATH.endsWith(lvn.substring(p)) : "luceneVersion = " + lvn + ", solrPath = " + SOLR_PATH + ", p = " + p + ", check defaults/solr/solrconfig.xml";
Log.logInfo("Fulltext", "connected solr in " + solrLocation.toString() + ", lucene version " + lvn + ", default core size: " + localCollectionConnector.getSize());
this.solrInstances.connect0(localCollectionInstance);
}
public void disconnectLocalSolr() {
this.solrInstances.disconnect0();
}
public boolean connectedRemoteSolr() {
return this.solrInstances.isConnected1();
}
public void connectRemoteSolr(final ArrayList<RemoteInstance> instances) {
this.solrInstances.connect1(new ShardInstance(instances, ShardSelection.Method.MODULO_HOST_MD5));
}
public void disconnectRemoteSolr() {
this.solrInstances.disconnect1();
}
public EmbeddedSolrConnector getDefaultEmbeddedConnector() {
return this.solrInstances.getDefaultEmbeddedConnector();
}
public EmbeddedSolrConnector getEmbeddedConnector(String corename) {
return this.solrInstances.getEmbeddedConnector(corename);
}
public RemoteSolrConnector getDefaultRemoteSolrConnector() {
if (this.solrInstances.getSolr1() == null) return null;
try {
return new RemoteSolrConnector(this.solrInstances.getSolr1());
} catch (IOException e) {
return null;
}
}
public SolrConnector getDefaultConnector() {
return this.solrInstances.getDefaultMirrorConnector();
}
public SolrConnector getWebgraphConnector() {
return this.solrInstances.getMirrorConnector(WebgraphSchema.CORE_NAME);
}
public void clearCache() {
if (this.urlIndexFile != null && this.urlIndexFile instanceof Cache) ((Cache) this.urlIndexFile).clearCache();
if (this.statsDump != null) this.statsDump.clear();
this.solrInstances.clearCache();
this.statsDump = null;
}
public void clearURLIndex() throws IOException {
if (this.exportthread != null) this.exportthread.interrupt();
if (this.urlIndexFile == null) {
SplitTable.delete(new File(this.segmentPath, "default"), this.tablename);
} else {
this.urlIndexFile.clear();
}
this.statsDump = null;
this.commit(true);
}
public void clearLocalSolr() throws IOException {
EmbeddedInstance instance = this.solrInstances.getSolr0();
if (instance != null) {
for (String name: instance.getCoreNames()) new EmbeddedSolrConnector(instance, name).clear();
}
this.commit(false);
this.solrInstances.clearCache();
}
public void clearRemoteSolr() throws IOException {
ShardInstance instance = this.solrInstances.getSolr1();
if (instance != null) {
for (String name: instance.getCoreNames()) new RemoteSolrConnector(instance, name).clear();
}
this.solrInstances.clearCache();
}
/**
* get the size of the default index
* @return
*/
public long collectionSize() {
long size = this.urlIndexFile == null ? 0 : this.urlIndexFile.size();
size += this.getDefaultConnector().getSize();
return size;
}
/**
* get the size of the webgraph index
* @return
*/
public long webgraphSize() {
return this.getWebgraphConnector().getSize();
}
public void close() {
this.statsDump = null;
if (this.urlIndexFile != null) {
this.urlIndexFile.close();
this.urlIndexFile = null;
}
this.solrInstances.close();
}
public void commit(boolean softCommit) {
getDefaultConnector().commit(softCommit);
getWebgraphConnector().commit(softCommit);
}
public Date getLoadDate(final String urlHash) {
if (urlHash == null) return null;
Date x;
try {
x = (Date) this.getDefaultConnector().getFieldById(urlHash, CollectionSchema.load_date_dt.getSolrFieldName());
} catch (IOException e) {
return null;
}
return x;
}
public DigestURI getURL(final byte[] urlHash) {
if (urlHash == null) return null;
String x;
try {
x = (String) this.getDefaultConnector().getFieldById(ASCII.String(urlHash), CollectionSchema.sku.getSolrFieldName());
} catch (IOException e) {
return null;
}
if (x == null) return null;
try {
DigestURI uri = new DigestURI(x, urlHash);
return uri;
} catch (MalformedURLException e) {
return null;
}
}
public URIMetadataNode getMetadata(WeakPriorityBlockingQueue.Element<WordReferenceVars> element) {
if (element == null) return null;
WordReferenceVars wre = element.getElement();
long weight = element.getWeight();
if (wre == null) return null; // all time was already wasted in takeRWI to get another element
URIMetadataNode node = getMetadata(wre.urlhash(), wre, weight);
return node;
}
public URIMetadataNode getMetadata(final byte[] urlHash) {
if (urlHash == null) return null;
return getMetadata(urlHash, null, 0);
}
private URIMetadataNode getMetadata(final byte[] urlHash, WordReferenceVars wre, long weight) {
// get the metadata from Solr
try {
SolrDocument doc = this.getDefaultConnector().getById(ASCII.String(urlHash));
if (doc != null) {
if (this.urlIndexFile != null) this.urlIndexFile.remove(urlHash);
return new URIMetadataNode(doc, wre, weight);
}
} catch (IOException e) {
Log.logException(e);
}
// get the metadata from the old metadata index
if (this.urlIndexFile != null) try {
// slow migration to solr
final Row.Entry entry = this.urlIndexFile.remove(urlHash);
if (entry == null) return null;
URIMetadataRow row = new URIMetadataRow(entry, wre);
SolrInputDocument solrInput = this.collectionConfiguration.metadata2solr(row);
this.putDocument(solrInput);
return new URIMetadataNode(solrInput, wre, weight);
} catch (final IOException e) {
Log.logException(e);
}
return null;
}
public void putDocument(final SolrInputDocument doc) throws IOException {
SolrConnector connector = this.getDefaultConnector();
if (connector == null) return;
String id = (String) doc.getFieldValue(CollectionSchema.id.getSolrFieldName());
byte[] idb = ASCII.getBytes(id);
try {
if (this.urlIndexFile != null) this.urlIndexFile.remove(idb);
//Date sdDate = (Date) connector.getFieldById(id, CollectionSchema.last_modified.getSolrFieldName());
//Date docDate = null;
//if (sdDate == null || (docDate = SchemaConfiguration.getDate(doc, CollectionSchema.last_modified)) == null || sdDate.before(docDate)) {
if (this.collectionConfiguration.contains(CollectionSchema.ip_s)) {
// ip_s needs a dns lookup which causes blockings during search here
connector.add(doc);
} else synchronized (this.solrInstances) {
connector.add(doc);
}
//}
} catch (SolrException e) {
throw new IOException(e.getMessage(), e);
}
this.statsDump = null;
if (MemoryControl.shortStatus()) clearCache();
}
public void putDocuments(final Collection<SolrInputDocument> docs) throws IOException {
if (docs == null || docs.size() == 0) return;
this.getDefaultConnector().add(docs);
this.statsDump = null;
if (MemoryControl.shortStatus()) clearCache();
}
public void putEdges(final Collection<SolrInputDocument> edges) throws IOException {
try {
this.getWebgraphConnector().add(edges);
} catch (SolrException e) {
throw new IOException(e.getMessage(), e);
}
this.statsDump = null;
if (MemoryControl.shortStatus()) clearCache();
}
public void putMetadata(final URIMetadataRow entry) throws IOException {
byte[] idb = entry.hash();
//String id = ASCII.String(idb);
try {
if (this.urlIndexFile != null) this.urlIndexFile.remove(idb);
//SolrDocument sd = this.getDefaultConnector().getById(id);
//if (sd == null || (new URIMetadataNode(sd)).isOlder(entry)) {
if (this.collectionConfiguration.contains(CollectionSchema.ip_s)) {
// ip_s needs a dns lookup which causes blockings during search here
this.getDefaultConnector().add(getDefaultConfiguration().metadata2solr(entry));
} else synchronized (this.solrInstances) {
this.getDefaultConnector().add(getDefaultConfiguration().metadata2solr(entry));
}
//}
} catch (SolrException e) {
throw new IOException(e.getMessage(), e);
}
this.statsDump = null;
if (MemoryControl.shortStatus()) clearCache();
}
public void putMetadata(final Collection<URIMetadataRow> entries) throws IOException {
Collection<SolrInputDocument> docs = new ArrayList<SolrInputDocument>(entries.size());
for (URIMetadataRow entry: entries) {
byte[] idb = entry.hash();
//String id = ASCII.String(idb);
if (this.urlIndexFile != null) this.urlIndexFile.remove(idb);
//SolrDocument sd = this.getDefaultConnector().getById(id, CollectionSchema.last_modified.getSolrFieldName(), CollectionSchema.load_date_dt.getSolrFieldName());
//if (sd == null || (new URIMetadataNode(sd)).isOlder(entry)) {
docs.add(getDefaultConfiguration().metadata2solr(entry));
//}
}
putDocuments(docs);
}
/**
* using a fragment of the url hash (6 bytes: bytes 6 to 11) it is possible to address all urls from a specific domain
* here such a fragment can be used to delete all these domains at once
* @param hosthash the hash of the host to be deleted
* @param freshdate either NULL or a date in the past which is the limit for deletion. Only documents older than this date are deleted
* @throws IOException
*/
public void deleteDomainHashpart(final String hosthash, Date freshdate, boolean concurrent) {
// first collect all url hashes that belong to the domain
assert hosthash.length() == 6;
final String collection1Query = CollectionSchema.host_id_s.getSolrFieldName() + ":\"" + hosthash + "\"" +
((freshdate != null && freshdate.before(new Date())) ?
(" AND " + CollectionSchema.load_date_dt.getSolrFieldName() + ":[* TO " + ISO8601Formatter.FORMATTER.format(freshdate) + "]") :
""
);
final String webgraphQuery = WebgraphSchema.source_host_id_s.getSolrFieldName() + ":\"" + hosthash + "\"" +
((freshdate != null && freshdate.before(new Date())) ?
(" AND " + WebgraphSchema.load_date_dt.getSolrFieldName() + ":[* TO " + ISO8601Formatter.FORMATTER.format(freshdate) + "]") :
""
);
Thread t = new Thread() {
public void run() {
// delete in solr
synchronized (Fulltext.this.solrInstances) {
try {Fulltext.this.getDefaultConnector().deleteByQuery(collection1Query);} catch (IOException e) {}
try {Fulltext.this.getWebgraphConnector().deleteByQuery(webgraphQuery);} catch (IOException e) {}
}
// delete in old metadata structure
if (Fulltext.this.urlIndexFile != null) {
final ArrayList<String> l = new ArrayList<String>();
synchronized (this) {
CloneableIterator<byte[]> i;
try {
i = Fulltext.this.urlIndexFile.keys(true, null);
String hash;
while (i != null && i.hasNext()) {
hash = ASCII.String(i.next());
if (hosthash.equals(hash.substring(6))) l.add(hash);
}
// then delete the urls using this list
for (final String h: l) Fulltext.this.urlIndexFile.delete(ASCII.getBytes(h));
} catch (IOException e) {}
}
}
// finally remove the line with statistics
if (Fulltext.this.statsDump != null) {
final Iterator<HostStat> hsi = Fulltext.this.statsDump.iterator();
HostStat hs;
while (hsi.hasNext()) {
hs = hsi.next();
if (hs.hosthash.equals(hosthash)) {
hsi.remove();
break;
}
}
}
}
};
if (concurrent) t.start(); else {
t.run();
Fulltext.this.commit(true);
}
}
public void deleteDomainHostname(final String hostname, Date freshdate, boolean concurrent) {
// first collect all url hashes that belong to the domain
final String collectionQuery =
CollectionSchema.host_s.getSolrFieldName() + ":\"" + hostname + "\"" +
((freshdate != null && freshdate.before(new Date())) ?
(" AND " + CollectionSchema.load_date_dt.getSolrFieldName() + ":[* TO " + ISO8601Formatter.FORMATTER.format(freshdate) + "]") :
""
);
final String webgraphQuery =
WebgraphSchema.source_host_s.getSolrFieldName() + ":\"" + hostname + "\"" +
((freshdate != null && freshdate.before(new Date())) ?
(" AND " + WebgraphSchema.load_date_dt.getSolrFieldName() + ":[* TO " + ISO8601Formatter.FORMATTER.format(freshdate) + "]") :
""
);
Thread t = new Thread() {
public void run() {
// delete in solr
synchronized (Fulltext.this.solrInstances) {
try {Fulltext.this.getDefaultConnector().deleteByQuery(collectionQuery);} catch (IOException e) {}
try {Fulltext.this.getWebgraphConnector().deleteByQuery(webgraphQuery);} catch (IOException e) {}
}
// finally remove the line with statistics
if (Fulltext.this.statsDump != null) {
final Iterator<HostStat> hsi = Fulltext.this.statsDump.iterator();
HostStat hs;
while (hsi.hasNext()) {
hs = hsi.next();
if (hs.hostname.equals(hostname)) {
hsi.remove();
break;
}
}
}
}
};
if (concurrent) t.start(); else {
t.run();
Fulltext.this.commit(true);
}
}
/**
* remove a full subpath from the index
* @param subpath the left path of the url; at least until the end of the host
* @param freshdate either NULL or a date in the past which is the limit for deletion. Only documents older than this date are deleted
* @param concurrently if true, then the method returnes immediately and runs concurrently
*/
public int remove(final String basepath, Date freshdate, final boolean concurrently) {
DigestURI uri;
try {uri = new DigestURI(basepath);} catch (MalformedURLException e) {return 0;}
final String host = uri.getHost();
final String collectionQuery = CollectionSchema.host_s.getSolrFieldName() + ":\"" + host + "\"" +
((freshdate != null && freshdate.before(new Date())) ? (" AND " + CollectionSchema.load_date_dt.getSolrFieldName() + ":[* TO " + ISO8601Formatter.FORMATTER.format(freshdate) + "]") : "");
final AtomicInteger count = new AtomicInteger(0);
Thread t = new Thread(){
public void run() {
final BlockingQueue<SolrDocument> docs = Fulltext.this.getDefaultConnector().concurrentQuery(collectionQuery, 0, 1000000, 600000, -1, CollectionSchema.id.getSolrFieldName(), CollectionSchema.sku.getSolrFieldName());
try {
SolrDocument doc;
while ((doc = docs.take()) != AbstractSolrConnector.POISON_DOCUMENT) {
String u = (String) doc.getFieldValue(CollectionSchema.sku.getSolrFieldName());
if (u.startsWith(basepath)) {
remove(ASCII.getBytes((String) doc.getFieldValue(CollectionSchema.id.getSolrFieldName())));
count.incrementAndGet();
}
}
if (count.get() > 0) Fulltext.this.commit(true);
} catch (InterruptedException e) {}
}
};
if (concurrently) t.start(); else t.run();
return count.get();
}
/**
* remove a list of id's from the index
* @param deleteIDs a list of urlhashes; each denoting a document
* @param concurrently if true, then the method returnes immediately and runs concurrently
*/
public void remove(final List<byte[]> deleteIDs, final boolean concurrently) {
if (deleteIDs == null || deleteIDs.size() == 0) return;
Thread t = new Thread() {
public void run() {
try {
synchronized (Fulltext.this.solrInstances) {
for (byte[] urlHash: deleteIDs) {
Fulltext.this.getDefaultConnector().delete(ASCII.String(urlHash));
Fulltext.this.getWebgraphConnector().deleteByQuery(WebgraphSchema.source_id_s.getSolrFieldName() + ":\"" + ASCII.String(urlHash) + "\"");
}
Fulltext.this.commit(true);
}
} catch (final Throwable e) {
Log.logException(e);
}
if (Fulltext.this.urlIndexFile != null) try {
for (byte[] urlHash: deleteIDs) {
final Row.Entry r = Fulltext.this.urlIndexFile.remove(urlHash);
if (r != null) Fulltext.this.statsDump = null;
}
} catch (final IOException e) {}
}};
if (concurrently) t.start(); else t.run();
}
public boolean remove(final byte[] urlHash) {
if (urlHash == null) return false;
try {
synchronized (this.solrInstances) {
this.getDefaultConnector().delete(ASCII.String(urlHash));
this.getWebgraphConnector().deleteByQuery(WebgraphSchema.source_id_s.getSolrFieldName() + ":\"" + ASCII.String(urlHash) + "\"");
}
} catch (final Throwable e) {
Log.logException(e);
}
if (this.urlIndexFile != null) try {
final Row.Entry r = this.urlIndexFile.remove(urlHash);
if (r != null) this.statsDump = null;
return r != null;
} catch (final IOException e) {
return false;
}
return false;
}
public boolean exists(final String urlHash) {
if (urlHash == null) return false;
if (this.urlIndexFile != null && this.urlIndexFile.has(ASCII.getBytes(urlHash))) return true;
try {
if (this.getDefaultConnector().exists(CollectionSchema.id.getSolrFieldName(), urlHash)) return true;
} catch (final Throwable e) {
Log.logException(e);
}
return false;
}
public String failReason(final String urlHash) throws IOException {
if (urlHash == null) return null;
String reason = (String) this.getDefaultConnector().getFieldById(urlHash, CollectionSchema.failreason_t.getSolrFieldName());
if (reason == null) return null;
return reason == null ? null : reason.length() == 0 ? null : reason;
}
public List<File> dumpFiles() {
EmbeddedInstance esc = this.solrInstances.getSolr0();
ArrayList<File> zips = new ArrayList<File>();
if (esc == null) {
Log.logWarning("Fulltext", "HOT DUMP selected solr0 == NULL, no dump list!");
return zips;
}
if (esc.getContainerPath() == null) {
Log.logWarning("Fulltext", "HOT DUMP selected solr0.getStoragePath() == NULL, no dump list!");
return zips;
}
File storagePath = esc.getContainerPath().getParentFile();
if (storagePath == null) {
Log.logWarning("Fulltext", "HOT DUMP selected esc.getStoragePath().getParentFile() == NULL, no dump list!");
return zips;
}
Log.logInfo("Fulltext", "HOT DUMP dump path = " + storagePath.toString());
for (String p: storagePath.list()) {
if (p.endsWith("zip")) zips.add(new File(storagePath, p));
}
return zips;
}
/**
* create a dump file from the current solr directory
* @return
*/
public File dumpSolr() {
EmbeddedInstance esc = this.solrInstances.getSolr0();
File storagePath = esc.getContainerPath();
File zipOut = new File(storagePath.toString() + "_" + GenericFormatter.SHORT_DAY_FORMATTER.format() + ".zip");
synchronized (this.solrInstances) {
this.disconnectLocalSolr();
this.solrInstances.close();
try {
ZIPWriter.zip(storagePath, zipOut);
} catch (IOException e) {
Log.logException(e);
} finally {
this.solrInstances = new InstanceMirror();
try {
this.connectLocalSolr();
} catch (IOException e) {
Log.logException(e);
}
}
}
return zipOut;
}
/**
* restore a solr dump to the current solr directory
* @param solrDumpZipFile
*/
public void restoreSolr(File solrDumpZipFile) {
EmbeddedInstance esc = this.solrInstances.getSolr0();
File storagePath = esc.getContainerPath();
synchronized (this.solrInstances) {
this.disconnectLocalSolr();
this.solrInstances.close();
try {
ZIPReader.unzip(solrDumpZipFile, storagePath);
} catch (IOException e) {
Log.logException(e);
} finally {
this.solrInstances = new InstanceMirror();
try {
this.connectLocalSolr();
} catch (IOException e) {
Log.logException(e);
}
}
}
}
// export methods
public Export export(final File f, final String filter, final int format, final boolean dom) {
if ((this.exportthread != null) && (this.exportthread.isAlive())) {
Log.logWarning("LURL-EXPORT", "cannot start another export thread, already one running");
return this.exportthread;
}
this.exportthread = new Export(f, filter, format, dom);
this.exportthread.start();
return this.exportthread;
}
public Export export() {
return this.exportthread;
}
public class Export extends Thread {
private final File f;
private final Pattern pattern;
private int count;
private String failure;
private final int format;
private final boolean dom;
private Export(final File f, final String filter, final int format, boolean dom) {
// format: 0=text, 1=html, 2=rss/xml
this.f = f;
this.pattern = filter == null ? null : Pattern.compile(filter);
this.count = 0;
this.failure = null;
this.format = format;
this.dom = dom;
if ((dom) && (format == 2)) dom = false;
}
@Override
public void run() {
try {
final File parentf = this.f.getParentFile();
if (parentf != null) parentf.mkdirs();
final PrintWriter pw = new PrintWriter(new BufferedOutputStream(new FileOutputStream(this.f)));
if (this.format == 1) {
pw.println("<html><head></head><body>");
}
if (this.format == 2) {
pw.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
pw.println("<?xml-stylesheet type='text/xsl' href='/yacysearch.xsl' version='1.0'?>");
pw.println("<rss version=\"2.0\" xmlns:yacy=\"http://www.yacy.net/\" xmlns:opensearch=\"http://a9.com/-/spec/opensearch/1.1/\" xmlns:atom=\"http://www.w3.org/2005/Atom\">");
pw.println("<channel>");
pw.println("<title>YaCy Peer-to-Peer - Web-Search URL Export</title>");
pw.println("<description></description>");
pw.println("<link>http://yacy.net</link>");
}
if (this.dom) {
Map<String, ReversibleScoreMap<String>> scores = Fulltext.this.getDefaultConnector().getFacets(CollectionSchema.httpstatus_i.getSolrFieldName() + ":200", 100000, CollectionSchema.host_s.getSolrFieldName());
ReversibleScoreMap<String> stats = scores.get(CollectionSchema.host_s.getSolrFieldName());
for (final String host: stats) {
if (this.pattern != null && !this.pattern.matcher(host).matches()) continue;
if (this.format == 0) pw.println(host);
if (this.format == 1) pw.println("<a href=\"http://" + host + "\">" + host + "</a><br>");
this.count++;
}
} else {
BlockingQueue<SolrDocument> docs = Fulltext.this.getDefaultConnector().concurrentQuery(CollectionSchema.httpstatus_i.getSolrFieldName() + ":200", 0, 100000000, 10 * 60 * 60 * 1000, 100,
CollectionSchema.id.getSolrFieldName(), CollectionSchema.sku.getSolrFieldName(), CollectionSchema.title.getSolrFieldName(),
CollectionSchema.author.getSolrFieldName(), CollectionSchema.description.getSolrFieldName(), CollectionSchema.size_i.getSolrFieldName(), CollectionSchema.last_modified.getSolrFieldName());
SolrDocument doc;
ArrayList<?> title;
String url, author, description, hash;
Integer size;
Date date;
while ((doc = docs.take()) != AbstractSolrConnector.POISON_DOCUMENT) {
hash = (String) doc.getFieldValue(CollectionSchema.id.getSolrFieldName());
url = (String) doc.getFieldValue(CollectionSchema.sku.getSolrFieldName());
title = (ArrayList<?>) doc.getFieldValue(CollectionSchema.title.getSolrFieldName());
author = (String) doc.getFieldValue(CollectionSchema.author.getSolrFieldName());
description = (String) doc.getFieldValue(CollectionSchema.description.getSolrFieldName());
size = (Integer) doc.getFieldValue(CollectionSchema.size_i.getSolrFieldName());
date = (Date) doc.getFieldValue(CollectionSchema.last_modified.getSolrFieldName());
if (this.pattern != null && !this.pattern.matcher(url).matches()) continue;
if (this.format == 0) {
pw.println(url);
}
if (this.format == 1) {
if (title != null) pw.println("<a href=\"" + MultiProtocolURI.escape(url) + "\">" + CharacterCoding.unicode2xml((String) title.iterator().next(), true) + "</a>");
}
if (this.format == 2) {
pw.println("<item>");
if (title != null) pw.println("<title>" + CharacterCoding.unicode2xml((String) title.iterator().next(), true) + "</title>");
pw.println("<link>" + MultiProtocolURI.escape(url) + "</link>");
if (author != null && !author.isEmpty()) pw.println("<author>" + CharacterCoding.unicode2xml(author, true) + "</author>");
if (description != null && !description.isEmpty()) pw.println("<description>" + CharacterCoding.unicode2xml(description, true) + "</description>");
if (date != null) pw.println("<pubDate>" + DateUtil.formatDate(date) + "</pubDate>");
if (size != null) pw.println("<yacy:size>" + size.intValue() + "</yacy:size>");
pw.println("<guid isPermaLink=\"false\">" + hash + "</guid>");
pw.println("</item>");
}
this.count++;
}
}
if (this.format == 1) {
pw.println("</body></html>");
}
if (this.format == 2) {
pw.println("</channel>");
pw.println("</rss>");
}
pw.close();
} catch (final IOException e) {
Log.logException(e);
this.failure = e.getMessage();
} catch (final Exception e) {
Log.logException(e);
this.failure = e.getMessage();
}
// terminate process
}
public File file() {
return this.f;
}
public String failed() {
return this.failure;
}
public int count() {
return this.count;
}
}
public Iterator<HostStat> statistics(int count, final ScoreMap<String> domainScore) {
// prevent too heavy IO.
if (this.statsDump != null && count <= this.statsDump.size()) return this.statsDump.iterator();
// fetch urls from the database to determine the host in clear text
final Iterator<String> j = domainScore.keys(false); // iterate urlhash-examples in reverse order (biggest first)
String urlhash;
count += 10; // make some more to prevent that we have to do this again after deletions too soon.
if (count < 0 || domainScore.sizeSmaller(count)) count = domainScore.size();
this.statsDump = new ArrayList<HostStat>();
DigestURI url;
while (j.hasNext()) {
urlhash = j.next();
if (urlhash == null) continue;
url = this.getURL(ASCII.getBytes(urlhash));
if (url == null || url.getHost() == null) continue;
if (this.statsDump == null) return new ArrayList<HostStat>().iterator(); // some other operation has destroyed the object
this.statsDump.add(new HostStat(url.getHost(), url.getPort(), urlhash.substring(6), domainScore.get(urlhash)));
count--;
if (count == 0) break;
}
// finally return an iterator for the result array
return (this.statsDump == null) ? new ArrayList<HostStat>().iterator() : this.statsDump.iterator();
}
public static class HostStat {
public String hostname, hosthash;
public int port;
public int count;
private HostStat(final String host, final int port, final String urlhashfragment, final int count) {
assert urlhashfragment.length() == 6;
this.hostname = host;
this.port = port;
this.hosthash = urlhashfragment;
this.count = count;
}
}
}