// 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.HashMap; import java.util.List; import java.util.Map; import java.util.Set; 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.encoding.ASCII; import net.yacy.cora.document.id.DigestURL; import net.yacy.cora.document.id.MultiProtocolURL; 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.protocol.HeaderFramework; import net.yacy.cora.sorting.ReversibleScoreMap; import net.yacy.cora.sorting.WeakPriorityBlockingQueue; import net.yacy.cora.storage.ZIPReader; import net.yacy.cora.storage.ZIPWriter; import net.yacy.cora.util.ConcurrentLog; import net.yacy.document.parser.html.CharacterCoding; 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.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.solr.common.SolrDocument; import org.apache.solr.common.SolrException; import org.apache.solr.common.SolrInputDocument; import org.apache.solr.core.SolrInfoMBean; import org.apache.lucene.util.Version; public final class Fulltext { private static final String SOLR_PATH = "solr_46"; // 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", "solr_40", "solr_44", "solr_45"}; // class objects private final File segmentPath; private final File archivePath; private Export exportthread; // will have a export thread assigned if exporter is running private InstanceMirror solrInstances; private final CollectionConfiguration collectionConfiguration; private final WebgraphConfiguration webgraphConfiguration; private boolean writeWebgraph; protected Fulltext(final File segmentPath, final File archivePath, final CollectionConfiguration collectionConfiguration, final WebgraphConfiguration webgraphConfiguration) { this.segmentPath = segmentPath; this.archivePath = archivePath; this.exportthread = null; // will have a export thread assigned if exporter is running this.solrInstances = new InstanceMirror(); this.collectionConfiguration = collectionConfiguration; this.webgraphConfiguration = webgraphConfiguration; this.writeWebgraph = false; } public void setUseWebgraph(boolean check) { this.writeWebgraph = check; } public boolean useWebgraph() { return this.writeWebgraph; } public CollectionConfiguration getDefaultConfiguration() { return this.collectionConfiguration; } public WebgraphConfiguration getWebgraphConfiguration() { return this.webgraphConfiguration; } public boolean connectedLocalSolr() { return this.solrInstances.isConnectedEmbedded(); } 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); } 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}); Version luceneVersion = localCollectionInstance.getDefaultCore().getSolrConfig().getLuceneVersion("luceneMatchVersion"); String lvn = luceneVersion.name(); ConcurrentLog.info("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"; ConcurrentLog.info("Fulltext", "connected solr in " + solrLocation.toString() + ", lucene version " + lvn); this.solrInstances.connectEmbedded(localCollectionInstance); } public void disconnectLocalSolr() { this.solrInstances.disconnectEmbedded(); } public boolean connectedRemoteSolr() { return this.solrInstances.isConnectedRemote(); } public void connectRemoteSolr(final ArrayList instances, final boolean writeEnabled) { this.solrInstances.connectRemote(new ShardInstance(instances, ShardSelection.Method.MODULO_HOST_MD5, writeEnabled)); } public void disconnectRemoteSolr() { this.solrInstances.disconnectRemote(); } public EmbeddedSolrConnector getDefaultEmbeddedConnector() { return this.solrInstances.getDefaultEmbeddedConnector(); } public EmbeddedSolrConnector getEmbeddedConnector(String corename) { return this.solrInstances.getEmbeddedConnector(corename); } public RemoteSolrConnector getDefaultRemoteSolrConnector() { try { return this.solrInstances.getDefaultRemoteConnector(true); } catch (IOException e) { return null; } } public EmbeddedInstance getEmbeddedInstance() { synchronized (this.solrInstances) { if (this.solrInstances.isConnectedEmbedded()) return this.solrInstances.getEmbedded(); return null; } } public SolrConnector getDefaultConnector() { synchronized (this.solrInstances) { return this.solrInstances.getDefaultMirrorConnector(); } } public SolrConnector getWebgraphConnector() { if (!this.writeWebgraph) return null; synchronized (this.solrInstances) { return this.solrInstances.getGenericMirrorConnector(WebgraphSchema.CORE_NAME); } } public Map getSolrInfoBeans() { EmbeddedSolrConnector esc = this.solrInstances.getDefaultEmbeddedConnector(); if (esc == null) return new HashMap(); return esc.getSolrInfoBeans(); } public int bufferSize() { return this.solrInstances.bufferSize(); } public void clearCaches() { this.solrInstances.clearCaches(); } public void clearLocalSolr() throws IOException { if (this.exportthread != null) this.exportthread.interrupt(); synchronized (this.solrInstances) { EmbeddedInstance instance = this.solrInstances.getEmbedded(); if (instance != null) { for (String name: instance.getCoreNames()) { this.solrInstances.getEmbeddedConnector(name).clear(); } } this.commit(false); this.solrInstances.clearCaches(); } } public void clearRemoteSolr() throws IOException { synchronized (this.solrInstances) { ShardInstance instance = this.solrInstances.getRemote(); if (instance != null) { for (String name: instance.getCoreNames()) { this.solrInstances.getRemoteConnector(name).clear(); } } this.solrInstances.clearCaches(); } } /** * get the size of the default index * @return */ private long collectionSizeLastAccess = 0; private long collectionSizeLastValue = 0; public long collectionSize() { long t = System.currentTimeMillis(); if (t - this.collectionSizeLastAccess < 1000) return this.collectionSizeLastValue; long size = this.solrInstances.getDefaultMirrorConnector().getSize(); this.collectionSizeLastAccess = t; this.collectionSizeLastValue = size; return size; } /** * get the size of the webgraph index * @return */ public long webgraphSize() { return this.writeWebgraph ? this.getWebgraphConnector().getSize() : 0; } public void close() { try { this.solrInstances.close(); } catch (Throwable e) {} } private long lastCommit = 0; public void commit(boolean softCommit) { long t = System.currentTimeMillis(); if (lastCommit + 10000 > t) return; lastCommit = t; getDefaultConnector().commit(softCommit); if (this.writeWebgraph) getWebgraphConnector().commit(softCommit); } public URIMetadataNode getMetadata(final WeakPriorityBlockingQueue.Element element) { if (element == null) return null; WordReferenceVars wre = element.getElement(); if (wre == null) return null; // all time was already wasted in takeRWI to get another element long weight = element.getWeight(); 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, final WordReferenceVars wre, final long weight) { String u = ASCII.String(urlHash); // get the metadata from Solr try { SolrDocument doc = this.getDefaultConnector().getDocumentById(u); if (doc != null) { return new URIMetadataNode(doc, wre, weight); } } catch (final IOException e) { ConcurrentLog.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()); String url = (String) doc.getFieldValue(CollectionSchema.sku.getSolrFieldName()); ConcurrentLog.info("Fulltext", "indexing: " + id + " " + url); try { connector.add(doc); } catch (final SolrException e) { throw new IOException(e.getMessage(), e); } if (MemoryControl.shortStatus()) clearCaches(); } public void putEdges(final Collection edges) throws IOException { if (!this.useWebgraph()) return; if (edges == null || edges.size() == 0) return; try { this.getWebgraphConnector().add(edges); } catch (final SolrException e) { throw new IOException(e.getMessage(), e); } if (MemoryControl.shortStatus()) clearCaches(); } /** * deprecated method to store document metadata, use Solr documents wherever possible */ public void putMetadata(final URIMetadataRow entry) throws IOException { byte[] idb = entry.hash(); String id = ASCII.String(idb); try { // because node entries are richer than metadata entries we must check if they exist to prevent that they are overwritten long date = this.getLoadTime(id); if (date < entry.loaddate().getTime()) { putDocument(getDefaultConfiguration().metadata2solr(entry)); } } catch (final SolrException e) { throw new IOException(e.getMessage(), e); } if (MemoryControl.shortStatus()) clearCaches(); } /** * 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 deleteStaleDomainHashes(final Set hosthashes, Date freshdate) { // delete in solr Date now = new Date(); deleteDomainWithConstraint(this.getDefaultConnector(), CollectionSchema.host_id_s.getSolrFieldName(), hosthashes, (freshdate == null || freshdate.after(now)) ? null : (CollectionSchema.load_date_dt.getSolrFieldName() + ":[* TO " + ISO8601Formatter.FORMATTER.format(freshdate) + "]")); if (this.writeWebgraph) deleteDomainWithConstraint(this.getWebgraphConnector(), WebgraphSchema.source_host_id_s.getSolrFieldName(), hosthashes, (freshdate == null || freshdate.after(now)) ? null : (WebgraphSchema.load_date_dt.getSolrFieldName() + ":[* TO " + ISO8601Formatter.FORMATTER.format(freshdate) + "]")); } public void deleteStaleDomainNames(final Set hostnames, Date freshdate) { Date now = new Date(); deleteDomainWithConstraint(this.getDefaultConnector(), CollectionSchema.host_s.getSolrFieldName(), hostnames, (freshdate == null || freshdate.after(now)) ? null : (CollectionSchema.load_date_dt.getSolrFieldName() + ":[* TO " + ISO8601Formatter.FORMATTER.format(freshdate) + "]")); if (this.writeWebgraph) deleteDomainWithConstraint(this.getWebgraphConnector(), WebgraphSchema.source_host_s.getSolrFieldName(), hostnames, (freshdate == null || freshdate.after(now)) ? null : (WebgraphSchema.load_date_dt.getSolrFieldName() + ":[* TO " + ISO8601Formatter.FORMATTER.format(freshdate) + "]")); } /** * delete all documents within a domain that are registered as error document * @param hosthashes */ public void deleteDomainErrors(final Set hosthashes) { deleteDomainWithConstraint(this.getDefaultConnector(), CollectionSchema.host_id_s.getSolrFieldName(), hosthashes, CollectionSchema.failreason_s.getSolrFieldName() + ":[* TO *]"); } private static void deleteDomainWithConstraint(SolrConnector connector, String fieldname, final Set hosthashes, String constraintQuery) { if (hosthashes == null || hosthashes.size() == 0) return; int subsetscount = 1 + (hosthashes.size() / 255); // if the list is too large, we get a "too many boolean clauses" exception int c = 0; @SuppressWarnings("unchecked") List[] subsets = new ArrayList[subsetscount]; for (int i = 0; i < subsetscount; i++) subsets[i] = new ArrayList(); for (String hosthash: hosthashes) subsets[c++ % subsetscount].add(hosthash); for (List subset: subsets) { try { StringBuilder query = new StringBuilder(); for (String hosthash: subset) { if (query.length() > 0) query.append(" OR "); //query.append(CollectionSchema.host_id_s.getSolrFieldName()).append(":\"").append(hosthash).append(":\""); query.append("({!raw f=").append(fieldname).append('}').append(hosthash).append(")"); } if (constraintQuery == null) connector.deleteByQuery(query.toString()); else connector.deleteByQuery("(" + query.toString() + ") AND " + constraintQuery); } catch (final IOException e) { } } } public void deleteOldDocuments(final long deltaToNow, final boolean loaddate) { Date deleteageDate = new Date(System.currentTimeMillis() - deltaToNow); final String collection1Query = (loaddate ? CollectionSchema.load_date_dt : CollectionSchema.last_modified).getSolrFieldName() + ":[* TO " + ISO8601Formatter.FORMATTER.format(deleteageDate) + "]"; final String webgraphQuery = (loaddate ? WebgraphSchema.load_date_dt : WebgraphSchema.last_modified).getSolrFieldName() + ":[* TO " + ISO8601Formatter.FORMATTER.format(deleteageDate) + "]"; try { this.getDefaultConnector().deleteByQuery(collection1Query); if (this.getWebgraphConnector() != null) this.getWebgraphConnector().deleteByQuery(webgraphQuery); } catch (final IOException e) { } } /** * 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) { DigestURL uri; try {uri = new DigestURL(basepath);} catch (final 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); final BlockingQueue docs = Fulltext.this.getDefaultConnector().concurrentDocumentsByQuery(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 (final InterruptedException e) {} 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 Collection deleteIDs) { if (deleteIDs == null || deleteIDs.size() == 0) return; try { this.getDefaultConnector().deleteByIds(deleteIDs); if (this.writeWebgraph) this.getWebgraphConnector().deleteByIds(deleteIDs); } catch (final Throwable e) { ConcurrentLog.logException(e); } } public boolean remove(final byte[] urlHash) { if (urlHash == null) return false; try { String id = ASCII.String(urlHash); this.getDefaultConnector().deleteById(id); if (this.writeWebgraph) this.getWebgraphConnector().deleteById(id); } catch (final Throwable e) { ConcurrentLog.logException(e); } return false; } public DigestURL getURL(final String urlHash) { if (urlHash == null || this.getDefaultConnector() == null) return null; try { SolrConnector.Metadata md = this.getDefaultConnector().getMetadata(urlHash); if (md == null) return null; return new DigestURL(md.url, ASCII.getBytes(urlHash)); } catch (final IOException e) { return null; } } /** * get the load time of a resource. * @param urlHash * @return the time in milliseconds since epoch for the load time or -1 if the document does not exist */ public long getLoadTime(final String urlHash) { if (urlHash == null) return -1l; try { SolrConnector.Metadata md = this.getDefaultConnector().getMetadata(urlHash); if (md == null) return -1; return md.date; } catch (final Throwable e) { ConcurrentLog.logException(e); } return -1l; } public List dumpFiles() { EmbeddedInstance esc = this.solrInstances.getEmbedded(); ArrayList zips = new ArrayList(); if (esc == null) { ConcurrentLog.warn("Fulltext", "HOT DUMP selected solr0 == NULL, no dump list!"); return zips; } if (esc.getContainerPath() == null) { ConcurrentLog.warn("Fulltext", "HOT DUMP selected solr0.getStoragePath() == NULL, no dump list!"); return zips; } if (this.archivePath == null) { ConcurrentLog.warn("Fulltext", "HOT DUMP selected esc.getStoragePath().getParentFile() == NULL, no dump list!"); return zips; } ConcurrentLog.info("Fulltext", "HOT DUMP dump path = " + this.archivePath.toString()); for (String p: this.archivePath.list()) { if (p.endsWith("zip")) zips.add(new File(this.archivePath, p)); } return zips; } /** * create a dump file from the current solr directory * @return */ public File dumpSolr() { EmbeddedInstance esc = this.solrInstances.getEmbedded(); File storagePath = esc.getContainerPath(); File zipOut = new File(this.archivePath, storagePath.getName() + "_" + GenericFormatter.SHORT_DAY_FORMATTER.format() + ".zip"); synchronized (this.solrInstances) { this.disconnectLocalSolr(); this.solrInstances.close(); try { ZIPWriter.zip(storagePath, zipOut); } catch (final IOException e) { ConcurrentLog.logException(e); } finally { this.solrInstances = new InstanceMirror(); try { this.connectLocalSolr(); } catch (final IOException e) { ConcurrentLog.logException(e); } } } return zipOut; } /** * restore a solr dump to the current solr directory * @param solrDumpZipFile */ public void restoreSolr(File solrDumpZipFile) { EmbeddedInstance esc = this.solrInstances.getEmbedded(); File storagePath = esc.getContainerPath(); synchronized (this.solrInstances) { this.disconnectLocalSolr(); this.solrInstances.close(); try { ZIPReader.unzip(solrDumpZipFile, storagePath); } catch (final IOException e) { ConcurrentLog.logException(e); } finally { this.solrInstances = new InstanceMirror(); try { this.connectLocalSolr(); } catch (final IOException e) { ConcurrentLog.logException(e); } } } } /** * optimize solr (experimental to check resource management) * @param size */ public void optimize(final int size) { if (size < 1) return; getDefaultConnector().optimize(size); if (this.writeWebgraph) getWebgraphConnector().optimize(size); } /** * reboot solr (experimental to check resource management) */ public void rebootSolr() { synchronized (this.solrInstances) { this.disconnectLocalSolr(); this.solrInstances.close(); this.solrInstances = new InstanceMirror(); try { this.connectLocalSolr(); } catch (final IOException e) { ConcurrentLog.logException(e); } } } // export methods public Export export(final File f, final String filter, final String query, final int format, final boolean dom) { if ((this.exportthread != null) && (this.exportthread.isAlive())) { ConcurrentLog.warn("LURL-EXPORT", "cannot start another export thread, already one running"); return this.exportthread; } this.exportthread = new Export(f, filter, query, 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, query; private final int format; private final boolean dom; private Export(final File f, final String filter, final String query, 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.query = query == null? "*:*" : query; 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(""); } if (this.format == 2) { pw.println(""); pw.println(""); pw.println(""); pw.println(""); pw.println("YaCy Peer-to-Peer - Web-Search URL Export"); pw.println(""); pw.println("http://yacy.net"); } if (this.dom) { Map> scores = Fulltext.this.getDefaultConnector().getFacets(this.query + " AND " + CollectionSchema.httpstatus_i.getSolrFieldName() + ":200", 100000000, CollectionSchema.host_s.getSolrFieldName()); ReversibleScoreMap 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("" + host + "
"); this.count++; } } else { BlockingQueue docs = Fulltext.this.getDefaultConnector().concurrentDocumentsByQuery(this.query + " AND " + 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_txt.getSolrFieldName(), CollectionSchema.size_i.getSolrFieldName(), CollectionSchema.last_modified.getSolrFieldName()); SolrDocument doc; String url, hash, title, author, description; Integer size; Date date; while ((doc = docs.take()) != AbstractSolrConnector.POISON_DOCUMENT) { hash = getStringFrom(doc.getFieldValue(CollectionSchema.id.getSolrFieldName())); url = getStringFrom(doc.getFieldValue(CollectionSchema.sku.getSolrFieldName())); title = getStringFrom(doc.getFieldValue(CollectionSchema.title.getSolrFieldName())); author = getStringFrom(doc.getFieldValue(CollectionSchema.author.getSolrFieldName())); description = getStringFrom(doc.getFieldValue(CollectionSchema.description_txt.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("" + CharacterCoding.unicode2xml(title, true) + ""); } if (this.format == 2) { pw.println(""); if (title != null) pw.println("" + CharacterCoding.unicode2xml(title, true) + ""); pw.println("" + MultiProtocolURL.escape(url) + ""); if (author != null && !author.isEmpty()) pw.println("" + CharacterCoding.unicode2xml(author, true) + ""); if (description != null && !description.isEmpty()) pw.println("" + CharacterCoding.unicode2xml(description, true) + ""); if (date != null) pw.println("" + HeaderFramework.formatRFC1123(date) + ""); if (size != null) pw.println("" + size.intValue() + ""); pw.println("" + hash + ""); pw.println(""); } this.count++; } } if (this.format == 1) { pw.println(""); } if (this.format == 2) { pw.println(""); pw.println(""); } pw.close(); } catch (final IOException e) { ConcurrentLog.logException(e); this.failure = e.getMessage(); } catch (final Exception e) { ConcurrentLog.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; } @SuppressWarnings("unchecked") private String getStringFrom(final Object o) { if (o == null) return ""; if (o instanceof ArrayList) return ((ArrayList) o).get(0); return (String) o; } } }