/** * CollectionConfiguration * Copyright 2011 by Michael Peter Christen * First released 14.04.2011 at http://yacy.net * * $LastChangedDate: 2011-04-14 22:05:04 +0200 (Do, 14 Apr 2011) $ * $LastChangedRevision: 7654 $ * $LastChangedBy: orbiter $ * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program in the file lgpl21.txt * If not, see . */ package net.yacy.search.schema; import java.io.File; import java.io.IOException; import java.io.Serializable; import java.net.InetAddress; import java.net.MalformedURLException; import java.util.ArrayList; import java.util.Collection; import java.util.Date; import java.util.HashMap; import java.util.HashSet; import java.util.Iterator; import java.util.LinkedHashMap; import java.util.LinkedHashSet; import java.util.List; import java.util.Map; import java.util.Set; import java.util.TreeMap; import java.util.concurrent.BlockingQueue; import java.util.regex.Pattern; import net.yacy.cora.document.analysis.EnhancedTextProfileSignature; import net.yacy.cora.document.encoding.ASCII; import net.yacy.cora.document.encoding.UTF8; import net.yacy.cora.document.id.DigestURL; import net.yacy.cora.document.id.MultiProtocolURL; import net.yacy.cora.federate.solr.Ranking; import net.yacy.cora.federate.solr.SchemaConfiguration; import net.yacy.cora.federate.solr.FailType; import net.yacy.cora.federate.solr.ProcessType; import net.yacy.cora.federate.solr.SchemaDeclaration; import net.yacy.cora.federate.solr.connector.AbstractSolrConnector; import net.yacy.cora.federate.solr.connector.SolrConnector; import net.yacy.cora.order.Base64Order; import net.yacy.cora.protocol.Domains; import net.yacy.cora.protocol.HeaderFramework; import net.yacy.cora.protocol.ResponseHeader; import net.yacy.cora.sorting.ClusteredScoreMap; import net.yacy.cora.sorting.ReversibleScoreMap; import net.yacy.cora.storage.HandleSet; import net.yacy.cora.util.CommonPattern; import net.yacy.cora.util.ConcurrentLog; import net.yacy.cora.util.SpaceExceededException; import net.yacy.crawler.retrieval.Response; import net.yacy.document.Condenser; import net.yacy.document.Document; import net.yacy.document.SentenceReader; import net.yacy.document.parser.html.ContentScraper; import net.yacy.document.parser.html.ImageEntry; import net.yacy.kelondro.data.citation.CitationReference; import net.yacy.kelondro.data.meta.URIMetadataRow; import net.yacy.kelondro.index.RowHandleMap; import net.yacy.kelondro.rwi.ReferenceContainer; import net.yacy.kelondro.util.Bitfield; import net.yacy.search.index.Segment; import net.yacy.search.index.Segment.ClickdepthCache; import net.yacy.search.index.Segment.ReferenceReport; import net.yacy.search.index.Segment.ReferenceReportCache; import net.yacy.search.query.QueryParams; import net.yacy.search.schema.WebgraphConfiguration.Subgraph; import org.apache.solr.common.SolrDocument; import org.apache.solr.common.SolrException; import org.apache.solr.common.SolrInputDocument; public class CollectionConfiguration extends SchemaConfiguration implements Serializable { private static final long serialVersionUID=-499100932212840385L; private final ArrayList rankings; /** * initialize the schema with a given configuration file * the configuration file simply contains a list of lines with keywords * or keyword = value lines (while value is a custom Solr field name * @param configurationFile * @throws IOException */ public CollectionConfiguration(final File configurationFile, final boolean lazy) throws IOException { super(configurationFile); super.lazy = lazy; this.rankings = new ArrayList(4); for (int i = 0; i <= 3; i++) rankings.add(new Ranking()); // check consistency: compare with YaCyField enum if (this.isEmpty()) return; Iterator it = this.entryIterator(); for (SchemaConfiguration.Entry etr = it.next(); it.hasNext(); etr = it.next()) { try { CollectionSchema f = CollectionSchema.valueOf(etr.key()); f.setSolrFieldName(etr.getValue()); } catch (final IllegalArgumentException e) { ConcurrentLog.fine("SolrCollectionWriter", "solr schema file " + configurationFile.getAbsolutePath() + " defines unknown attribute '" + etr.toString() + "'"); it.remove(); } } // check consistency the other way: look if all enum constants in SolrField appear in the configuration file for (CollectionSchema field: CollectionSchema.values()) { if (this.get(field.name()) == null) { if (CollectionSchema.author_sxt.getSolrFieldName().endsWith(field.name())) continue; // exception for this: that is a copy-field if (CollectionSchema.coordinate_p_0_coordinate.getSolrFieldName().endsWith(field.name())) continue; // exception for this: automatically generated if (CollectionSchema.coordinate_p_1_coordinate.getSolrFieldName().endsWith(field.name())) continue; // exception for this: automatically generated ConcurrentLog.warn("SolrCollectionWriter", " solr schema file " + configurationFile.getAbsolutePath() + " is missing declaration for '" + field.name() + "'"); } } } public Ranking getRanking(final int idx) { return this.rankings.get(idx); } public Ranking getRanking(final String name) { if (name == null) return null; for (int i = 0; i < this.rankings.size(); i++) { Ranking r = this.rankings.get(i); if (name.equals(r)) return r; } return null; } /** * save configuration to file and update enum SolrFields * @throws IOException */ public void commit() throws IOException { try { super.commit(); // make sure the enum SolrField.SolrFieldName is current Iterator it = this.entryIterator(); for (SchemaConfiguration.Entry etr = it.next(); it.hasNext(); etr = it.next()) { try { SchemaDeclaration f = CollectionSchema.valueOf(etr.key()); f.setSolrFieldName(etr.getValue()); } catch (final IllegalArgumentException e) { continue; } } } catch (final IOException e) {} } private final static Set omitFields = new HashSet(3); static { omitFields.add(CollectionSchema.author_sxt.getSolrFieldName()); omitFields.add(CollectionSchema.coordinate_p_0_coordinate.getSolrFieldName()); omitFields.add(CollectionSchema.coordinate_p_1_coordinate.getSolrFieldName()); } public SolrInputDocument toSolrInputDocument(final SolrDocument doc) { return toSolrInputDocument(doc, omitFields); } public SolrDocument toSolrDocument(final SolrInputDocument doc) { return toSolrDocument(doc, omitFields); } /** * add uri attributes to solr document * @param doc * @param allAttr * @param digestURL * @param doctype * @return the normalized url */ public String addURIAttributes(final SolrInputDocument doc, final boolean allAttr, final DigestURL digestURL, final char doctype) { add(doc, CollectionSchema.id, ASCII.String(digestURL.hash())); if (allAttr || contains(CollectionSchema.host_id_s)) add(doc, CollectionSchema.host_id_s, digestURL.hosthash()); String us = digestURL.toNormalform(true); add(doc, CollectionSchema.sku, us); if (allAttr || contains(CollectionSchema.ip_s)) { final InetAddress address = digestURL.getInetAddress(); if (address != null) add(doc, CollectionSchema.ip_s, address.getHostAddress()); } String host = null; if ((host = digestURL.getHost()) != null) { String dnc = Domains.getDNC(host); String subdomOrga = host.length() - dnc.length() <= 0 ? "" : host.substring(0, host.length() - dnc.length() - 1); int p = subdomOrga.lastIndexOf('.'); String subdom = (p < 0) ? "" : subdomOrga.substring(0, p); String orga = (p < 0) ? subdomOrga : subdomOrga.substring(p + 1); if (allAttr || contains(CollectionSchema.host_s)) add(doc, CollectionSchema.host_s, host); if (allAttr || contains(CollectionSchema.host_dnc_s)) add(doc, CollectionSchema.host_dnc_s, dnc); if (allAttr || contains(CollectionSchema.host_organization_s)) add(doc, CollectionSchema.host_organization_s, orga); if (allAttr || contains(CollectionSchema.host_organizationdnc_s)) add(doc, CollectionSchema.host_organizationdnc_s, orga + '.' + dnc); if (allAttr || contains(CollectionSchema.host_subdomain_s)) add(doc, CollectionSchema.host_subdomain_s, subdom); } // path elements of link String filename = digestURL.getFileName(); String extension = MultiProtocolURL.getFileExtension(filename); String filenameStub = filename.toLowerCase().endsWith("." + extension) ? filename.substring(0, filename.length() - extension.length() - 1) : filename; // remove possible jsession (or other url parm like "img.jpg;jsession=123") // TODO: consider to implement ";jsession=123" check in getFileExtension() if (extension.indexOf(';') >= 0) extension = extension.substring(0,extension.indexOf(';')); if (allAttr || contains(CollectionSchema.url_chars_i)) add(doc, CollectionSchema.url_chars_i, us.length()); if (allAttr || contains(CollectionSchema.url_protocol_s)) add(doc, CollectionSchema.url_protocol_s, digestURL.getProtocol()); if (allAttr || contains(CollectionSchema.url_paths_sxt)) add(doc, CollectionSchema.url_paths_sxt, digestURL.getPaths()); if (allAttr || contains(CollectionSchema.url_file_name_s)) add(doc, CollectionSchema.url_file_name_s, filenameStub); if (allAttr || contains(CollectionSchema.url_file_name_tokens_t)) add(doc, CollectionSchema.url_file_name_tokens_t, MultiProtocolURL.toTokens(filenameStub)); if (allAttr || contains(CollectionSchema.url_file_ext_s)) add(doc, CollectionSchema.url_file_ext_s, extension); if (allAttr || contains(CollectionSchema.content_type)) add(doc, CollectionSchema.content_type, Response.doctype2mime(extension, doctype)); Map searchpart = digestURL.getSearchpartMap(); if (searchpart == null) { if (allAttr || contains(CollectionSchema.url_parameter_i)) add(doc, CollectionSchema.url_parameter_i, 0); } else { if (allAttr || contains(CollectionSchema.url_parameter_i)) add(doc, CollectionSchema.url_parameter_i, searchpart.size()); if (allAttr || contains(CollectionSchema.url_parameter_key_sxt)) add(doc, CollectionSchema.url_parameter_key_sxt, searchpart.keySet().toArray(new String[searchpart.size()])); if (allAttr || contains(CollectionSchema.url_parameter_value_sxt)) add(doc, CollectionSchema.url_parameter_value_sxt, searchpart.values().toArray(new String[searchpart.size()])); } return us; } public SolrInputDocument metadata2solr(final URIMetadataRow md) { final SolrInputDocument doc = new SolrInputDocument(); boolean allAttr = this.isEmpty(); addURIAttributes(doc, allAttr, md.url(), md.doctype()); String title = md.dc_title(); if (allAttr || contains(CollectionSchema.title)) add(doc, CollectionSchema.title, new String[]{title}); if (allAttr || contains(CollectionSchema.title_count_i)) add(doc, CollectionSchema.title_count_i, 1); if (allAttr || contains(CollectionSchema.title_chars_val)) { Integer[] cv = new Integer[]{new Integer(title.length())}; add(doc, CollectionSchema.title_chars_val, cv); } if (allAttr || contains(CollectionSchema.title_words_val)) { Integer[] cv = new Integer[]{new Integer(CommonPattern.SPACE.split(title).length)}; add(doc, CollectionSchema.title_words_val, cv); } String description = md.snippet(); boolean description_exist = description != null; if (description == null) description = ""; if (allAttr || contains(CollectionSchema.description_txt)) add(doc, CollectionSchema.description_txt, description_exist ? new String[]{description} : new String[0]); if (allAttr || contains(CollectionSchema.description_count_i)) add(doc, CollectionSchema.description_count_i, description_exist ? 1 : 0); if (allAttr || contains(CollectionSchema.description_chars_val)) { add(doc, CollectionSchema.description_chars_val, description_exist ? new Integer[]{new Integer(description.length())} : new Integer[0]); } if (allAttr || contains(CollectionSchema.description_words_val)) { add(doc, CollectionSchema.description_words_val, description_exist ? new Integer[]{new Integer(description.length() == 0 ? 0 : CommonPattern.SPACE.split(description).length)} : new Integer[0]); } if (allAttr || contains(CollectionSchema.author)) add(doc, CollectionSchema.author, md.dc_creator()); if (allAttr || contains(CollectionSchema.last_modified)) add(doc, CollectionSchema.last_modified, md.moddate()); if (allAttr || contains(CollectionSchema.wordcount_i)) add(doc, CollectionSchema.wordcount_i, md.wordCount()); String keywords = md.dc_subject(); Bitfield flags = md.flags(); if (flags.get(Condenser.flag_cat_indexof)) { if (keywords == null || keywords.isEmpty()) keywords = "indexof"; else { if (keywords.indexOf(',') > 0) keywords += ", indexof"; else keywords += " indexof"; } } if (allAttr || contains(CollectionSchema.keywords)) { add(doc, CollectionSchema.keywords, keywords); } if (allAttr || contains(CollectionSchema.imagescount_i)) add(doc, CollectionSchema.imagescount_i, md.limage()); if (allAttr || contains(CollectionSchema.inboundlinkscount_i)) add(doc, CollectionSchema.inboundlinkscount_i, md.llocal()); if (allAttr || contains(CollectionSchema.outboundlinkscount_i)) add(doc, CollectionSchema.outboundlinkscount_i, md.lother()); if (allAttr || contains(CollectionSchema.charset_s)) add(doc, CollectionSchema.charset_s, "UTF8"); // coordinates if (md.lat() != 0.0 && md.lon() != 0.0) { if (allAttr || contains(CollectionSchema.coordinate_p)) add(doc, CollectionSchema.coordinate_p, Double.toString(md.lat()) + "," + Double.toString(md.lon())); } if (allAttr || contains(CollectionSchema.httpstatus_i)) add(doc, CollectionSchema.httpstatus_i, 200); // fields that are in URIMetadataRow additional to yacy2solr basic requirement if (allAttr || contains(CollectionSchema.load_date_dt)) add(doc, CollectionSchema.load_date_dt, md.loaddate()); if (allAttr || contains(CollectionSchema.fresh_date_dt)) add(doc, CollectionSchema.fresh_date_dt, md.freshdate()); if ((allAttr || contains(CollectionSchema.referrer_id_s)) && md.referrerHash() != null) add(doc, CollectionSchema.referrer_id_s, ASCII.String(md.referrerHash())); if (allAttr || contains(CollectionSchema.md5_s)) add(doc, CollectionSchema.md5_s, md.md5()); if (allAttr || contains(CollectionSchema.publisher_t)) add(doc, CollectionSchema.publisher_t, md.dc_publisher()); if ((allAttr || contains(CollectionSchema.language_s)) && md.language() != null) add(doc, CollectionSchema.language_s, UTF8.String(md.language())); if (allAttr || contains(CollectionSchema.size_i)) add(doc, CollectionSchema.size_i, md.size()); if (allAttr || contains(CollectionSchema.audiolinkscount_i)) add(doc, CollectionSchema.audiolinkscount_i, md.laudio()); if (allAttr || contains(CollectionSchema.videolinkscount_i)) add(doc, CollectionSchema.videolinkscount_i, md.lvideo()); if (allAttr || contains(CollectionSchema.applinkscount_i)) add(doc, CollectionSchema.applinkscount_i, md.lapp()); if (allAttr || contains(CollectionSchema.text_t)) { // construct the text from other metadata parts. // This is necessary here since that is used to search the link when no other data (parsed text body) is available StringBuilder sb = new StringBuilder(120); accText(sb, md.dc_title()); accText(sb, md.dc_creator()); accText(sb, md.dc_publisher()); accText(sb, md.snippet()); accText(sb, md.url().toTokens()); accText(sb, keywords); add(doc, CollectionSchema.text_t, sb.toString()); } return doc; } private static void accText(final StringBuilder sb, String text) { if (text == null || text.length() == 0) return; if (sb.length() != 0) sb.append(' '); text = text.trim(); if (!text.isEmpty() && text.charAt(text.length() - 1) == '.') sb.append(text); else sb.append(text).append('.'); } public static class SolrVector extends SolrInputDocument { private static final long serialVersionUID = -210901881471714939L; private List webgraphDocuments; public SolrVector() { super(); this.webgraphDocuments = new ArrayList(); } public void addWebgraphDocument(SolrInputDocument webgraphDocument) { this.webgraphDocuments.add(webgraphDocument); } public List getWebgraphDocuments() { return this.webgraphDocuments; } } public SolrVector yacy2solr( final Map collections, final ResponseHeader responseHeader, final Document document, final Condenser condenser, final DigestURL referrerURL, final String language, final WebgraphConfiguration webgraph, final String sourceName) { // we use the SolrCell design as index schema SolrVector doc = new SolrVector(); final DigestURL digestURL = document.dc_source(); final String id = ASCII.String(digestURL.hash()); boolean allAttr = this.isEmpty(); String url = addURIAttributes(doc, allAttr, digestURL, Response.docType(digestURL)); Set processTypes = new LinkedHashSet(); String us = digestURL.toNormalform(true); int clickdepth = 999; if ((allAttr || contains(CollectionSchema.clickdepth_i))) { if (digestURL.probablyRootURL()) { clickdepth = 0; } else { clickdepth = 999; } processTypes.add(ProcessType.CLICKDEPTH); // postprocessing needed; this is also needed if the depth is positive; there could be a shortcut CollectionSchema.clickdepth_i.add(doc, clickdepth); // no lazy value checking to get a '0' into the index } if (allAttr || (contains(CollectionSchema.cr_host_chance_d) && contains(CollectionSchema.cr_host_count_i) && contains(CollectionSchema.cr_host_norm_i))) { processTypes.add(ProcessType.CITATION); // postprocessing needed } if (allAttr || contains(CollectionSchema.collection_sxt) && collections != null && collections.size() > 0) { List cs = new ArrayList(); for (Map.Entry e: collections.entrySet()) { if (e.getValue().matcher(url).matches()) cs.add(e.getKey()); } add(doc, CollectionSchema.collection_sxt, cs); } List titles = document.titles(); if (allAttr || contains(CollectionSchema.title)) { add(doc, CollectionSchema.title, titles); if ((allAttr || contains(CollectionSchema.title_exact_signature_l)) && titles.size() > 0) { add(doc, CollectionSchema.title_exact_signature_l, EnhancedTextProfileSignature.getSignatureLong(titles.get(0))); } } if (allAttr || contains(CollectionSchema.title_count_i)) add(doc, CollectionSchema.title_count_i, titles.size()); if (allAttr || contains(CollectionSchema.title_chars_val)) { ArrayList cv = new ArrayList(titles.size()); for (String s: titles) cv.add(new Integer(s.length())); add(doc, CollectionSchema.title_chars_val, cv); } if (allAttr || contains(CollectionSchema.title_words_val)) { ArrayList cv = new ArrayList(titles.size()); for (String s: titles) cv.add(new Integer(CommonPattern.SPACE.split(s).length)); add(doc, CollectionSchema.title_words_val, cv); } String[] descriptions = document.dc_description(); if (allAttr || contains(CollectionSchema.description_txt)) { add(doc, CollectionSchema.description_txt, descriptions); if ((allAttr || contains(CollectionSchema.description_exact_signature_l)) && descriptions != null && descriptions.length > 0) { add(doc, CollectionSchema.description_exact_signature_l, EnhancedTextProfileSignature.getSignatureLong(descriptions)); } } if (allAttr || contains(CollectionSchema.description_count_i)) add(doc, CollectionSchema.description_count_i, descriptions.length); if (allAttr || contains(CollectionSchema.description_chars_val)) { ArrayList cv = new ArrayList(descriptions.length); for (String s: descriptions) cv.add(new Integer(s.length())); add(doc, CollectionSchema.description_chars_val, cv); } if (allAttr || contains(CollectionSchema.description_words_val)) { ArrayList cv = new ArrayList(descriptions.length); for (String s: descriptions) cv.add(new Integer(CommonPattern.SPACE.split(s).length)); add(doc, CollectionSchema.description_words_val, cv); } if (allAttr || contains(CollectionSchema.author)) { String author = document.dc_creator(); if (author == null || author.length() == 0) author = document.dc_publisher(); add(doc, CollectionSchema.author, author); } if (allAttr || contains(CollectionSchema.content_type)) add(doc, CollectionSchema.content_type, new String[]{document.dc_format()}); if (allAttr || contains(CollectionSchema.last_modified)) { Date lastModified = responseHeader == null ? new Date() : responseHeader.lastModified(); if (document.getDate().before(lastModified)) lastModified = document.getDate(); add(doc, CollectionSchema.last_modified, lastModified); } if (allAttr || contains(CollectionSchema.keywords)) add(doc, CollectionSchema.keywords, document.dc_subject(' ')); if (allAttr || contains(CollectionSchema.synonyms_sxt)) { List synonyms = condenser.synonyms(); add(doc, CollectionSchema.synonyms_sxt, synonyms); } add(doc, CollectionSchema.exact_signature_l, condenser.exactSignature()); add(doc, CollectionSchema.exact_signature_unique_b, true); // this must be corrected afterwards during storage! add(doc, CollectionSchema.exact_signature_copycount_i, 0); // this must be corrected afterwards during postprocessing! add(doc, CollectionSchema.fuzzy_signature_l, condenser.fuzzySignature()); add(doc, CollectionSchema.fuzzy_signature_text_t, condenser.fuzzySignatureText()); add(doc, CollectionSchema.fuzzy_signature_unique_b, true); // this must be corrected afterwards during storage! add(doc, CollectionSchema.fuzzy_signature_copycount_i, 0); // this must be corrected afterwards during postprocessing! if (this.contains(CollectionSchema.exact_signature_unique_b) || this.contains(CollectionSchema.exact_signature_copycount_i) || this.contains(CollectionSchema.fuzzy_signature_l) || this.contains(CollectionSchema.fuzzy_signature_copycount_i)) { processTypes.add(ProcessType.UNIQUE); } // get list of all links; they will be shrinked by urls that appear in other fields of the solr schema LinkedHashMap inboundLinks = document.inboundLinks(); LinkedHashMap outboundLinks = document.outboundLinks(); Subgraph subgraph = new Subgraph(inboundLinks.size(), outboundLinks.size()); List images = new ArrayList(); int c = 0; final Object parser = document.getParserObject(); boolean containsCanonical = false; if (parser instanceof ContentScraper) { final ContentScraper html = (ContentScraper) parser; images = html.getImages(); // header tags int h = 0; int f = 1; String[] hs; hs = html.getHeadlines(1); h = h | (hs.length > 0 ? f : 0); f = f * 2; add(doc, CollectionSchema.h1_txt, hs); add(doc, CollectionSchema.h1_i, hs.length); hs = html.getHeadlines(2); h = h | (hs.length > 0 ? f : 0); f = f * 2; add(doc, CollectionSchema.h2_txt, hs); add(doc, CollectionSchema.h2_i, hs.length); hs = html.getHeadlines(3); h = h | (hs.length > 0 ? f : 0); f = f * 2; add(doc, CollectionSchema.h3_txt, hs); add(doc, CollectionSchema.h3_i, hs.length); hs = html.getHeadlines(4); h = h | (hs.length > 0 ? f : 0); f = f * 2; add(doc, CollectionSchema.h4_txt, hs); add(doc, CollectionSchema.h4_i, hs.length); hs = html.getHeadlines(5); h = h | (hs.length > 0 ? f : 0); f = f * 2; add(doc, CollectionSchema.h5_txt, hs); add(doc, CollectionSchema.h5_i, hs.length); hs = html.getHeadlines(6); h = h | (hs.length > 0 ? f : 0); f = f * 2; add(doc, CollectionSchema.h6_txt, hs); add(doc, CollectionSchema.h6_i, hs.length); add(doc, CollectionSchema.htags_i, h); add(doc, CollectionSchema.schema_org_breadcrumb_i, html.breadcrumbCount()); // meta tags: Open Graph properties String og; og = html.getMetas().get("og:title"); if (og != null) add(doc, CollectionSchema.opengraph_title_t, og); og = html.getMetas().get("og:type"); if (og != null) add(doc, CollectionSchema.opengraph_type_s, og); og = html.getMetas().get("og:url"); if (og != null) add(doc, CollectionSchema.opengraph_url_s, og); og = html.getMetas().get("og:image"); if (og != null) add(doc, CollectionSchema.opengraph_image_s, og); // noindex and nofollow attributes // from HTML (meta-tag in HTML header: robots) // and HTTP header (X-Robots-Tag property) // coded as binary value: // bit 0: "all" contained in html header meta // bit 1: "index" contained in html header meta // bit 2: "follow" contained in html header meta // bit 3: "noindex" contained in html header meta // bit 4: "nofollow" contained in html header meta // bit 8: "all" contained in http header X-Robots-Tag // bit 9: "noindex" contained in http header X-Robots-Tag // bit 10: "nofollow" contained in http header X-Robots-Tag // bit 11: "noarchive" contained in http header X-Robots-Tag // bit 12: "nosnippet" contained in http header X-Robots-Tag // bit 13: "noodp" contained in http header X-Robots-Tag // bit 14: "notranslate" contained in http header X-Robots-Tag // bit 15: "noimageindex" contained in http header X-Robots-Tag // bit 16: "unavailable_after" contained in http header X-Robots-Tag int b = 0; final String robots_meta = html.getMetas().get("robots"); // this tag may have values: all, index, noindex, nofollow; see http://www.robotstxt.org/meta.html if (robots_meta != null) { if (robots_meta.indexOf("all",0) >= 0) b += 1; // set bit 0 if (robots_meta.indexOf("index",0) == 0 || robots_meta.indexOf(" index",0) >= 0 || robots_meta.indexOf(",index",0) >= 0 ) b += 2; // set bit 1 if (robots_meta.indexOf("follow",0) == 0 || robots_meta.indexOf(" follow",0) >= 0 || robots_meta.indexOf(",follow",0) >= 0 ) b += 4; // set bit 2 if (robots_meta.indexOf("noindex",0) >= 0) b += 8; // set bit 3 if (robots_meta.indexOf("nofollow",0) >= 0) b += 16; // set bit 4 } String x_robots_tag = ""; if (responseHeader != null) { x_robots_tag = responseHeader.get(HeaderFramework.X_ROBOTS_TAG, ""); if (x_robots_tag.isEmpty()) { x_robots_tag = responseHeader.get(HeaderFramework.X_ROBOTS, ""); } } if (!x_robots_tag.isEmpty()) { // this tag may have values: all, noindex, nofollow, noarchive, nosnippet, noodp, notranslate, noimageindex, unavailable_after, none; see https://developers.google.com/webmasters/control-crawl-index/docs/robots_meta_tag?hl=de if (x_robots_tag.indexOf("all",0) >= 0) b += 1<<8; // set bit 8 if (x_robots_tag.indexOf("noindex",0) >= 0||x_robots_tag.indexOf("none",0) >= 0) b += 1<<9; // set bit 9 if (x_robots_tag.indexOf("nofollow",0) >= 0||x_robots_tag.indexOf("none",0) >= 0) b += 1<<10; // set bit 10 if (x_robots_tag.indexOf("noarchive",0) >= 0) b += 1<<11; // set bit 11 if (x_robots_tag.indexOf("nosnippet",0) >= 0) b += 1<<12; // set bit 12 if (x_robots_tag.indexOf("noodp",0) >= 0) b += 1<<13; // set bit 13 if (x_robots_tag.indexOf("notranslate",0) >= 0) b += 1<<14; // set bit 14 if (x_robots_tag.indexOf("noimageindex",0) >= 0) b += 1<<15; // set bit 15 if (x_robots_tag.indexOf("unavailable_after",0) >= 0) b += 1<<16; // set bit 16 } add(doc, CollectionSchema.robots_i, b); // meta tags: generator final String generator = html.getMetas().get("generator"); if (generator != null) add(doc, CollectionSchema.metagenerator_t, generator); // bold, italic final String[] bold = html.getBold(); add(doc, CollectionSchema.boldcount_i, bold.length); if (bold.length > 0) { add(doc, CollectionSchema.bold_txt, bold); if (allAttr || contains(CollectionSchema.bold_val)) { add(doc, CollectionSchema.bold_val, html.getBoldCount(bold)); } } final String[] italic = html.getItalic(); add(doc, CollectionSchema.italiccount_i, italic.length); if (italic.length > 0) { add(doc, CollectionSchema.italic_txt, italic); if (allAttr || contains(CollectionSchema.italic_val)) { add(doc, CollectionSchema.italic_val, html.getItalicCount(italic)); } } final String[] underline = html.getUnderline(); add(doc, CollectionSchema.underlinecount_i, underline.length); if (underline.length > 0) { add(doc, CollectionSchema.underline_txt, underline); if (allAttr || contains(CollectionSchema.underline_val)) { add(doc, CollectionSchema.underline_val, html.getUnderlineCount(underline)); } } final String[] li = html.getLi(); add(doc, CollectionSchema.licount_i, li.length); if (li.length > 0) add(doc, CollectionSchema.li_txt, li); // images final ArrayList imgprots = new ArrayList(images.size()); final Integer[] imgheights = new Integer[images.size()]; final Integer[] imgwidths = new Integer[images.size()]; final Integer[] imgpixels = new Integer[images.size()]; final String[] imgstubs = new String[images.size()]; final String[] imgalts = new String[images.size()]; int withalt = 0; int i = 0; LinkedHashSet images_text_map = new LinkedHashSet(); for (final ImageEntry ie: images) { final MultiProtocolURL uri = ie.url(); inboundLinks.remove(uri); outboundLinks.remove(uri); imgheights[i] = ie.height(); imgwidths[i] = ie.width(); imgpixels[i] = ie.height() < 0 || ie.width() < 0 ? -1 : ie.height() * ie.width(); String protocol = uri.getProtocol(); imgprots.add(protocol); imgstubs[i] = uri.toString().substring(protocol.length() + 3); imgalts[i] = ie.alt(); for (String it: uri.toTokens().split(" ")) images_text_map.add(it); if (ie.alt() != null && ie.alt().length() > 0) { SentenceReader sr = new SentenceReader(ie.alt()); while (sr.hasNext()) images_text_map.add(sr.next().toString()); withalt++; } i++; } StringBuilder images_text = new StringBuilder(images_text_map.size() * 6 + 1); for (String s: images_text_map) images_text.append(s.trim()).append(' '); if (allAttr || contains(CollectionSchema.imagescount_i)) add(doc, CollectionSchema.imagescount_i, images.size()); if (allAttr || contains(CollectionSchema.images_protocol_sxt)) add(doc, CollectionSchema.images_protocol_sxt, protocolList2indexedList(imgprots)); if (allAttr || contains(CollectionSchema.images_urlstub_sxt)) add(doc, CollectionSchema.images_urlstub_sxt, imgstubs); if (allAttr || contains(CollectionSchema.images_alt_sxt)) add(doc, CollectionSchema.images_alt_sxt, imgalts); if (allAttr || contains(CollectionSchema.images_height_val)) add(doc, CollectionSchema.images_height_val, imgheights); if (allAttr || contains(CollectionSchema.images_width_val)) add(doc, CollectionSchema.images_width_val, imgwidths); if (allAttr || contains(CollectionSchema.images_pixel_val)) add(doc, CollectionSchema.images_pixel_val, imgpixels); if (allAttr || contains(CollectionSchema.images_withalt_i)) add(doc, CollectionSchema.images_withalt_i, withalt); if (allAttr || contains(CollectionSchema.images_text_t)) add(doc, CollectionSchema.images_text_t, images_text.toString().trim()); // style sheets if (allAttr || contains(CollectionSchema.css_tag_sxt)) { final Map csss = html.getCSS(); final String[] css_tag = new String[csss.size()]; final String[] css_url = new String[csss.size()]; c = 0; for (final Map.Entry entry: csss.entrySet()) { final String cssurl = entry.getKey().toNormalform(false); inboundLinks.remove(cssurl); outboundLinks.remove(cssurl); css_tag[c] = ""; css_url[c] = cssurl; c++; } add(doc, CollectionSchema.csscount_i, css_tag.length); if (css_tag.length > 0) add(doc, CollectionSchema.css_tag_sxt, css_tag); if (css_url.length > 0) add(doc, CollectionSchema.css_url_sxt, css_url); } // Scripts if (allAttr || contains(CollectionSchema.scripts_sxt)) { final Set scriptss = html.getScript(); final String[] scripts = new String[scriptss.size()]; c = 0; for (final DigestURL u: scriptss) { inboundLinks.remove(u); outboundLinks.remove(u); scripts[c++] = u.toNormalform(false); } add(doc, CollectionSchema.scriptscount_i, scripts.length); if (scripts.length > 0) add(doc, CollectionSchema.scripts_sxt, scripts); } // Frames if (allAttr || contains(CollectionSchema.frames_sxt)) { final Set framess = html.getFrames(); final String[] frames = new String[framess.size()]; c = 0; for (final DigestURL u: framess) { inboundLinks.remove(u); outboundLinks.remove(u); frames[c++] = u.toNormalform(false); } add(doc, CollectionSchema.framesscount_i, frames.length); if (frames.length > 0) { add(doc, CollectionSchema.frames_sxt, frames); //webgraph.addEdges(subgraph, digestURI, responseHeader, collections, clickdepth, alllinks, images, true, framess, citations); // add here because links have been removed from remaining inbound/outbound } } // IFrames if (allAttr || contains(CollectionSchema.iframes_sxt)) { final Set iframess = html.getIFrames(); final String[] iframes = new String[iframess.size()]; c = 0; for (final DigestURL u: iframess) { inboundLinks.remove(u); outboundLinks.remove(u); iframes[c++] = u.toNormalform(false); } add(doc, CollectionSchema.iframesscount_i, iframes.length); if (iframes.length > 0) { add(doc, CollectionSchema.iframes_sxt, iframes); //webgraph.addEdges(subgraph, digestURI, responseHeader, collections, clickdepth, alllinks, images, true, iframess, citations); // add here because links have been removed from remaining inbound/outbound } } // canonical tag if (allAttr || contains(CollectionSchema.canonical_s)) { DigestURL canonical = html.getCanonical(); // if there is no canonical in the html then look into the http header: if (canonical == null) { String link = responseHeader.get("Link", null); int p; if (link != null && ((p = link.indexOf("rel=\"canonical\"")) > 0)) { link = link.substring(0, p).trim(); p = link.indexOf('<'); int q = link.lastIndexOf('>'); if (p >= 0 && q > 0) { link = link.substring(p + 1, q); try { canonical = new DigestURL(link); } catch (MalformedURLException e) {} } } } if (canonical != null && !ASCII.String(canonical.hash()).equals(id)) { containsCanonical = true; inboundLinks.remove(canonical); outboundLinks.remove(canonical); add(doc, CollectionSchema.canonical_s, canonical.toNormalform(false)); // set a flag if this is equal to sku if (contains(CollectionSchema.canonical_equal_sku_b)) { add(doc, CollectionSchema.canonical_equal_sku_b, canonical.equals(us)); } } } // meta refresh tag if (allAttr || contains(CollectionSchema.refresh_s)) { String refresh = html.getRefreshPath(); if (refresh != null && refresh.length() > 0) { MultiProtocolURL refreshURL; try { refreshURL = refresh.startsWith("http") ? new MultiProtocolURL(html.getRefreshPath()) : new MultiProtocolURL(digestURL, html.getRefreshPath()); if (refreshURL != null) { inboundLinks.remove(refreshURL); outboundLinks.remove(refreshURL); add(doc, CollectionSchema.refresh_s, refreshURL.toNormalform(false)); } } catch (final MalformedURLException e) { add(doc, CollectionSchema.refresh_s, refresh); } } } // flash embedded if (allAttr || contains(CollectionSchema.flash_b)) { MultiProtocolURL[] flashURLs = html.getFlash(); for (MultiProtocolURL u: flashURLs) { // remove all flash links from ibound/outbound links inboundLinks.remove(u); outboundLinks.remove(u); } add(doc, CollectionSchema.flash_b, flashURLs.length > 0); } // generic evaluation pattern for (final String model: html.getEvaluationModelNames()) { if (allAttr || contains("ext_" + model + "_txt")) { final String[] scorenames = html.getEvaluationModelScoreNames(model); if (scorenames.length > 0) { add(doc, CollectionSchema.valueOf("ext_" + model + "_txt"), scorenames); add(doc, CollectionSchema.valueOf("ext_" + model + "_val"), html.getEvaluationModelScoreCounts(model, scorenames)); } } } // response time add(doc, CollectionSchema.responsetime_i, responseHeader == null ? 0 : Integer.parseInt(responseHeader.get(HeaderFramework.RESPONSE_TIME_MILLIS, "0"))); // hreflang link tag, see http://support.google.com/webmasters/bin/answer.py?hl=de&answer=189077 if (allAttr || (contains(CollectionSchema.hreflang_url_sxt) && contains(CollectionSchema.hreflang_cc_sxt))) { final String[] ccs = new String[html.getHreflang().size()]; final String[] urls = new String[html.getHreflang().size()]; c = 0; for (Map.Entry e: html.getHreflang().entrySet()) { ccs[c] = e.getKey(); urls[c] = e.getValue().toNormalform(true); c++; } add(doc, CollectionSchema.hreflang_cc_sxt, ccs); add(doc, CollectionSchema.hreflang_url_sxt, urls); } // page navigation url, see http://googlewebmastercentral.blogspot.de/2011/09/pagination-with-relnext-and-relprev.html if (allAttr || (contains(CollectionSchema.navigation_url_sxt) && contains(CollectionSchema.navigation_type_sxt))) { final String[] navs = new String[html.getNavigation().size()]; final String[] urls = new String[html.getNavigation().size()]; c = 0; for (Map.Entry e: html.getNavigation().entrySet()) { navs[c] = e.getKey(); urls[c] = e.getValue().toNormalform(true); c++; } add(doc, CollectionSchema.navigation_type_sxt, navs); add(doc, CollectionSchema.navigation_url_sxt, urls); } // publisher url as defined in http://support.google.com/plus/answer/1713826?hl=de if (allAttr || contains(CollectionSchema.publisher_url_s) && html.getPublisherLink() != null) { add(doc, CollectionSchema.publisher_url_s, html.getPublisherLink().toNormalform(true)); } } String content = document.getTextString(); String tokens = digestURL.toTokens(); if (content == null || content.length() == 0) { content = tokens; } else { String[] t = tokens.split(" "); for (String r: t) { if (r.length() > 0 && content.indexOf(" " + r + " ") < 0 && !content.startsWith(r + " ") && !content.endsWith(" " + r)) content += " " + r; } } if ((allAttr || contains(CollectionSchema.images_text_t)) && MultiProtocolURL.isImage(MultiProtocolURL.getFileExtension(digestURL.getFileName()))) { add(doc, CollectionSchema.images_text_t, content); // the content may contain the exif data from the image parser content = digestURL.toTokens(); // remove all other entry but the url tokens } // content (must be written after special parser data, since this can influence the content) if (allAttr || contains(CollectionSchema.text_t)) add(doc, CollectionSchema.text_t, content); if (allAttr || contains(CollectionSchema.wordcount_i)) { if (content.length() == 0) { add(doc, CollectionSchema.wordcount_i, 0); } else { int contentwc = 1; for (int i = content.length() - 1; i >= 0; i--) if (content.charAt(i) == ' ') contentwc++; add(doc, CollectionSchema.wordcount_i, contentwc); } } // statistics about the links if (allAttr || contains(CollectionSchema.inboundlinkscount_i)) add(doc, CollectionSchema.inboundlinkscount_i, inboundLinks.size()); if (allAttr || contains(CollectionSchema.inboundlinksnofollowcount_i)) add(doc, CollectionSchema.inboundlinksnofollowcount_i, document.inboundLinkNofollowCount()); if (allAttr || contains(CollectionSchema.outboundlinkscount_i)) add(doc, CollectionSchema.outboundlinkscount_i, outboundLinks.size()); if (allAttr || contains(CollectionSchema.outboundlinksnofollowcount_i)) add(doc, CollectionSchema.outboundlinksnofollowcount_i, document.outboundLinkNofollowCount()); // create a subgraph if (!containsCanonical) { // a document with canonical tag should not get a webgraph relation, because that belongs to the canonical document webgraph.addEdges(subgraph, digestURL, responseHeader, collections, clickdepth, images, true, document.getAnchors(), sourceName); } // list all links doc.webgraphDocuments.addAll(subgraph.edges); if (allAttr || contains(CollectionSchema.inboundlinks_protocol_sxt)) add(doc, CollectionSchema.inboundlinks_protocol_sxt, protocolList2indexedList(subgraph.urlProtocols[0])); if (allAttr || contains(CollectionSchema.inboundlinks_urlstub_sxt)) add(doc, CollectionSchema.inboundlinks_urlstub_sxt, subgraph.urlStubs[0]); if (allAttr || contains(CollectionSchema.inboundlinks_anchortext_txt)) add(doc, CollectionSchema.inboundlinks_anchortext_txt, subgraph.urlAnchorTexts[0]); if (allAttr || contains(CollectionSchema.outboundlinks_protocol_sxt)) add(doc, CollectionSchema.outboundlinks_protocol_sxt, protocolList2indexedList(subgraph.urlProtocols[1])); if (allAttr || contains(CollectionSchema.outboundlinks_urlstub_sxt)) add(doc, CollectionSchema.outboundlinks_urlstub_sxt, subgraph.urlStubs[1]); if (allAttr || contains(CollectionSchema.outboundlinks_anchortext_txt)) add(doc, CollectionSchema.outboundlinks_anchortext_txt, subgraph.urlAnchorTexts[1]); // charset if (allAttr || contains(CollectionSchema.charset_s)) add(doc, CollectionSchema.charset_s, document.getCharset()); // coordinates if (document.lat() != 0.0 && document.lon() != 0.0) { if (allAttr || contains(CollectionSchema.coordinate_p)) add(doc, CollectionSchema.coordinate_p, Double.toString(document.lat()) + "," + Double.toString(document.lon())); } if (allAttr || contains(CollectionSchema.httpstatus_i)) add(doc, CollectionSchema.httpstatus_i, responseHeader == null ? 200 : responseHeader.getStatusCode()); // fields that were additionally in URIMetadataRow Date loadDate = new Date(); Date modDate = responseHeader == null ? new Date() : responseHeader.lastModified(); if (modDate.getTime() > loadDate.getTime()) modDate = loadDate; int size = (int) Math.max(document.dc_source().length(), responseHeader == null ? 0 : responseHeader.getContentLength()); if (allAttr || contains(CollectionSchema.load_date_dt)) add(doc, CollectionSchema.load_date_dt, loadDate); if (allAttr || contains(CollectionSchema.fresh_date_dt)) add(doc, CollectionSchema.fresh_date_dt, new Date(loadDate.getTime() + Math.max(0, loadDate.getTime() - modDate.getTime()) / 2)); // freshdate, computed with Proxy-TTL formula if ((allAttr || contains(CollectionSchema.referrer_id_s)) && referrerURL != null) add(doc, CollectionSchema.referrer_id_s, ASCII.String(referrerURL.hash())); //if (allAttr || contains(SolrField.md5_s)) add(solrdoc, SolrField.md5_s, new byte[0]); if (allAttr || contains(CollectionSchema.publisher_t)) add(doc, CollectionSchema.publisher_t, document.dc_publisher()); if ((allAttr || contains(CollectionSchema.language_s)) && language != null) add(doc, CollectionSchema.language_s, language); if (allAttr || contains(CollectionSchema.size_i)) add(doc, CollectionSchema.size_i, size); if (allAttr || contains(CollectionSchema.audiolinkscount_i)) add(doc, CollectionSchema.audiolinkscount_i, document.getAudiolinks().size()); if (allAttr || contains(CollectionSchema.videolinkscount_i)) add(doc, CollectionSchema.videolinkscount_i, document.getVideolinks().size()); if (allAttr || contains(CollectionSchema.applinkscount_i)) add(doc, CollectionSchema.applinkscount_i, document.getApplinks().size()); // write generic navigation // there are no pre-defined solr fields for navigation because the vocabulary is generic // we use dynamically allocated solr fields for this. // It must be a multi-value string/token field, therefore we use _sxt extensions for the field names for (Map.Entry> facet: document.getGenericFacets().entrySet()) { String facetName = facet.getKey(); Set facetValues = facet.getValue(); doc.setField(CollectionSchema.VOCABULARY_PREFIX + facetName + CollectionSchema.VOCABULARY_SUFFIX, facetValues.toArray(new String[facetValues.size()])); } if (allAttr || contains(CollectionSchema.process_sxt)) { List p = new ArrayList(); for (ProcessType t: processTypes) p.add(t.name()); add(doc, CollectionSchema.process_sxt, p); if (allAttr || contains(CollectionSchema.harvestkey_s)) { add(doc, CollectionSchema.harvestkey_s, sourceName); } } return doc; } /** * post-processing steps for all entries that have a process tag assigned * @param connector * @param urlCitation * @return */ public int postprocessing(final Segment segment, ReferenceReportCache rrCache, ClickdepthCache clickdepthCache, String harvestkey) { if (!this.contains(CollectionSchema.process_sxt)) return 0; if (!segment.connectedCitation() && !segment.fulltext().writeToWebgraph()) return 0; SolrConnector collectionConnector = segment.fulltext().getDefaultConnector(); SolrConnector webgraphConnector = segment.fulltext().getWebgraphConnector(); collectionConnector.commit(false); // make sure that we have latest information that can be found if (webgraphConnector != null) webgraphConnector.commit(false); Map ranking = new TreeMap(Base64Order.enhancedCoder); ReversibleScoreMap hostscore = null; try { // collect hosts from index which shall take part in citation computation String query = (harvestkey == null || !segment.fulltext().getDefaultConfiguration().contains(CollectionSchema.harvestkey_s) ? "" : CollectionSchema.harvestkey_s.getSolrFieldName() + ":\"" + harvestkey + "\" AND ") + CollectionSchema.process_sxt.getSolrFieldName() + ":" + ProcessType.CITATION.toString(); hostscore = collectionConnector.getFacets(query, 10000000, CollectionSchema.host_s.getSolrFieldName()).get(CollectionSchema.host_s.getSolrFieldName()); ConcurrentLog.info("CollectionConfiguration", "collecting " + hostscore.size() + " hosts"); int countcheck = 0; for (String host: hostscore.keyList(true)) { // Patch the citation index for links with canonical tags. // This shall fulfill the following requirement: // If a document A links to B and B contains a 'canonical C', then the citation rank computation shall consider that A links to C and B does not link to C. // To do so, we first must collect all canonical links, find all references to them, get the anchor list of the documents and patch the citation reference of these links String patchquery = CollectionSchema.host_s.getSolrFieldName() + ":" + host + " AND " + CollectionSchema.canonical_s.getSolrFieldName() + ":[* TO *]"; long patchquerycount = collectionConnector.getCountByQuery(patchquery); BlockingQueue documents_with_canonical_tag = collectionConnector.concurrentDocumentsByQuery(patchquery, 0, 10000000, 600000, 100, CollectionSchema.id.getSolrFieldName(), CollectionSchema.sku.getSolrFieldName(), CollectionSchema.canonical_s.getSolrFieldName()); SolrDocument doc_B; int patchquerycountcheck = 0; try { while ((doc_B = documents_with_canonical_tag.take()) != AbstractSolrConnector.POISON_DOCUMENT) { // find all documents which link to the canonical doc DigestURL doc_C_url = new DigestURL((String) doc_B.getFieldValue(CollectionSchema.canonical_s.getSolrFieldName())); byte[] doc_B_id = ASCII.getBytes(((String) doc_B.getFieldValue(CollectionSchema.id.getSolrFieldName()))); // we remove all references to B, because these become references to C if (segment.connectedCitation()) { ReferenceContainer doc_A_ids = segment.urlCitation().remove(doc_B_id); if (doc_A_ids == null) { //System.out.println("*** document with canonical but no referrer: " + doc_B.getFieldValue(CollectionSchema.sku.getSolrFieldName())); continue; // the document has a canonical tag but no referrer? } Iterator doc_A_ids_iterator = doc_A_ids.entries(); // for each of the referrer A of B, set A as a referrer of C while (doc_A_ids_iterator.hasNext()) { CitationReference doc_A_citation = doc_A_ids_iterator.next(); segment.urlCitation().add(doc_C_url.hash(), doc_A_citation); } } patchquerycountcheck++; } } catch (InterruptedException e) { ConcurrentLog.logException(e); } catch (SpaceExceededException e) { ConcurrentLog.logException(e); } if (patchquerycount != patchquerycountcheck) ConcurrentLog.warn("CollectionConfiguration", "ambiguous patchquery count for host " + host + ": expected=" + patchquerycount + ", counted=" + patchquerycountcheck); // do the citation rank computation if (hostscore.get(host) <= 0) continue; // select all documents for each host CRHost crh = new CRHost(segment, rrCache, host, 0.85d, 6); int convergence_attempts = 0; while (convergence_attempts++ < 30) { if (crh.convergenceStep()) break; } ConcurrentLog.info("CollectionConfiguration", "convergence for host " + host + " after " + convergence_attempts + " steps"); // we have now the cr for all documents of a specific host; we store them for later use Map crn = crh.normalize(); //crh.log(crn); ranking.putAll(crn); // accumulate this here for usage in document update later countcheck++; } if (hostscore.size() != countcheck) ConcurrentLog.warn("CollectionConfiguration", "ambiguous host count: expected=" + hostscore.size() + ", counted=" + countcheck); } catch (final IOException e2) { hostscore = new ClusteredScoreMap(); } // process all documents at the webgraph for the outgoing links of this document SolrDocument doc; if (webgraphConnector != null) { try { for (String host: hostscore.keyList(true)) { if (hostscore.get(host) <= 0) continue; // select all webgraph edges and modify their cr value String query = "{!raw f=" + WebgraphSchema.source_host_s.getSolrFieldName() + "}" + host; long count = webgraphConnector.getCountByQuery(query); ConcurrentLog.info("CollectionConfiguration", "collecting " + count + " documents from the webgraph"); BlockingQueue docs = webgraphConnector.concurrentDocumentsByQuery(query, 0, 10000000, 1800000, 100); int countcheck = 0; while ((doc = docs.take()) != AbstractSolrConnector.POISON_DOCUMENT) { boolean changed = false; SolrInputDocument sid = segment.fulltext().getWebgraphConfiguration().toSolrInputDocument(doc, null); byte[] id = ASCII.getBytes((String) doc.getFieldValue(WebgraphSchema.source_id_s.getSolrFieldName())); CRV crv = ranking.get(id); if (crv != null) { sid.setField(WebgraphSchema.source_cr_host_norm_i.getSolrFieldName(), crv.crn); changed = true; } id = ASCII.getBytes((String) doc.getFieldValue(WebgraphSchema.target_id_s.getSolrFieldName())); crv = ranking.get(id); if (crv != null) { sid.setField(WebgraphSchema.target_cr_host_norm_i.getSolrFieldName(), crv.crn); changed = true; } if (changed) try { sid.removeField(WebgraphSchema.process_sxt.getSolrFieldName()); sid.removeField(WebgraphSchema.harvestkey_s.getSolrFieldName()); webgraphConnector.add(sid); } catch (SolrException e) { ConcurrentLog.logException(e); } catch (IOException e) { ConcurrentLog.logException(e); } countcheck++; } if (count != countcheck) ConcurrentLog.warn("CollectionConfiguration", "ambiguous webgraph document count for host " + host + ": expected=" + count + ", counted=" + countcheck); } } catch (final IOException e2) { ConcurrentLog.warn("CollectionConfiguration", e2.getMessage(), e2); } catch (final InterruptedException e3) { ConcurrentLog.warn("CollectionConfiguration", e3.getMessage(), e3); } } // process all documents in collection String query = (harvestkey == null ? "" : CollectionSchema.harvestkey_s.getSolrFieldName() + ":\"" + harvestkey + "\" AND ") + CollectionSchema.process_sxt.getSolrFieldName() + ":[* TO *]"; int proccount = 0, proccount_clickdepthchange = 0, proccount_referencechange = 0, proccount_citationchange = 0, proccount_uniquechange = 0; Map hostExtentCache = new HashMap(); // a mapping from the host id to the number of documents which contain this host-id Set uniqueURLs = new HashSet(); try { long count = collectionConnector.getCountByQuery(query); ConcurrentLog.info("CollectionConfiguration", "collecting " + count + " documents from the collection for harvestkey " + harvestkey); BlockingQueue docs = collectionConnector.concurrentDocumentsByQuery(query, 0, 10000000, 1800000, 100); int countcheck = 0; while ((doc = docs.take()) != AbstractSolrConnector.POISON_DOCUMENT) { // for each to-be-processed entry work on the process tag Collection proctags = doc.getFieldValues(CollectionSchema.process_sxt.getSolrFieldName()); try { DigestURL url = new DigestURL((String) doc.getFieldValue(CollectionSchema.sku.getSolrFieldName()), ASCII.getBytes((String) doc.getFieldValue(CollectionSchema.id.getSolrFieldName()))); byte[] id = url.hash(); SolrInputDocument sid = this.toSolrInputDocument(doc); for (Object tag: proctags) { // switch over tag types ProcessType tagtype = ProcessType.valueOf((String) tag); if (tagtype == ProcessType.CLICKDEPTH) { if (postprocessing_clickdepth(clickdepthCache, sid, url, CollectionSchema.clickdepth_i, 100)) proccount_clickdepthchange++; } if (tagtype == ProcessType.CITATION) { CRV crv = ranking.get(id); if (crv != null) { sid.setField(CollectionSchema.cr_host_count_i.getSolrFieldName(), crv.count); sid.setField(CollectionSchema.cr_host_chance_d.getSolrFieldName(), crv.cr); sid.setField(CollectionSchema.cr_host_norm_i.getSolrFieldName(), crv.crn); proccount_citationchange++; } } if (tagtype == ProcessType.UNIQUE) { if (postprocessing_doublecontent(segment, uniqueURLs, sid, url)) proccount_uniquechange++; } } // refresh the link count; it's 'cheap' to do this here String hosthash = url.hosthash(); if (!hostExtentCache.containsKey(hosthash)) { StringBuilder q = new StringBuilder(); q.append(CollectionSchema.host_id_s.getSolrFieldName()).append(":\"").append(hosthash).append("\" AND ").append(CollectionSchema.httpstatus_i.getSolrFieldName()).append(":200"); long hostExtentCount = segment.fulltext().getDefaultConnector().getCountByQuery(q.toString()); hostExtentCache.put(hosthash, hostExtentCount); } if (postprocessing_references(rrCache, sid, url, hostExtentCache)) proccount_referencechange++; // all processing steps checked, remove the processing and harvesting key sid.removeField(CollectionSchema.process_sxt.getSolrFieldName()); sid.removeField(CollectionSchema.harvestkey_s.getSolrFieldName()); // send back to index //connector.deleteById(ASCII.String(id)); collectionConnector.add(sid); proccount++; } catch (final Throwable e1) { ConcurrentLog.logException(e1); } countcheck++; } if (count != countcheck) ConcurrentLog.warn("CollectionConfiguration", "ambiguous collection document count for harvestkey " + harvestkey + ": expected=" + count + ", counted=" + countcheck); // big gap for harvestkey = null ConcurrentLog.info("CollectionConfiguration", "cleanup_processing: re-calculated " + proccount+ " new documents, " + proccount_clickdepthchange + " clickdepth changes, " + proccount_referencechange + " reference-count changes, " + proccount_uniquechange + " unique field changes, " + proccount_citationchange + " citation ranking changes."); } catch (final InterruptedException e2) { ConcurrentLog.warn("CollectionConfiguration", e2.getMessage(), e2); } catch (IOException e3) { ConcurrentLog.warn("CollectionConfiguration", e3.getMessage(), e3); } return proccount; } private static final class CRV { public double cr; public int crn, count; public CRV(final int count, final double cr, final int crn) {this.count = count; this.cr = cr; this.crn = crn;} public String toString() { return "count=" + count + ", cr=" + cr + ", crn=" + crn; } } /** * The CRHost class is a container for all ranking values of a specific host. * Objects of that class are needed as an environment for repeated convergenceStep() computations, * which are iterative citation rank computations that are repeated until the ranking values * converge to stable values. * The class also contains normalization methods to compute simple integer ranking values out of the * double relevance values. */ private static final class CRHost { private final Segment segment; private final Map crt; private final int cr_host_count; private final RowHandleMap internal_links_counter; private double damping; private int converge_eq_factor; private ReferenceReportCache rrCache; public CRHost(final Segment segment, final ReferenceReportCache rrCache, final String host, final double damping, final int converge_digits) { this.segment = segment; this.damping = damping; this.rrCache = rrCache; this.converge_eq_factor = (int) Math.pow(10.0d, converge_digits); SolrConnector connector = segment.fulltext().getDefaultConnector(); this.crt = new TreeMap(Base64Order.enhancedCoder); try { // select all documents for each host BlockingQueue ids = connector.concurrentIDsByQuery("{!raw f=" + CollectionSchema.host_s.getSolrFieldName() + "}" + host, 0, 10000000, 600000); String id; while ((id = ids.take()) != AbstractSolrConnector.POISON_ID) { this.crt.put(ASCII.getBytes(id), new double[]{0.0d,0.0d}); //{old value, new value} } } catch (final InterruptedException e2) { } this.cr_host_count = this.crt.size(); double initval = 1.0d / cr_host_count; for (Map.Entry entry: this.crt.entrySet()) entry.getValue()[0] = initval; this.internal_links_counter = new RowHandleMap(12, Base64Order.enhancedCoder, 8, 100, "internal_links_counter"); } /** * produce a map from IDs to CRV records, normalization entries containing the values that are stored to solr. * @return */ public Map normalize() { final TreeMap> reorder = new TreeMap>(); for (Map.Entry entry: this.crt.entrySet()) { Double d = entry.getValue()[0]; List ds = reorder.get(d); if (ds == null) {ds = new ArrayList(); reorder.put(d, ds);} ds.add(entry.getKey()); } int nextcount = (this.cr_host_count + 1) / 2; int nextcrn = 0; Map r = new TreeMap(Base64Order.enhancedCoder); while (reorder.size() > 0) { int count = nextcount; while (reorder.size() > 0 && count > 0) { Map.Entry> next = reorder.pollFirstEntry(); List ids = next.getValue(); count -= ids.size(); double cr = next.getKey(); for (byte[] id: ids) r.put(id, new CRV(this.cr_host_count, cr, nextcrn)); } nextcrn++; nextcount = Math.max(1, (nextcount + count + 1) / 2); } // finally, increase the crn number in such a way that the maximum is always 10 int inc = 11 - nextcrn; // nextcrn is +1 for (Map.Entry entry: r.entrySet()) entry.getValue().crn += inc; return r; } /** * log out a complete CRHost set of urls and ranking values * @param rm */ @SuppressWarnings("unused") public void log(final Map rm) { // print out all urls with their cr-values SolrConnector connector = segment.fulltext().getDefaultConnector(); for (Map.Entry entry: rm.entrySet()) { if (entry == null || entry.getValue() == null) continue; try { String url = (String) connector.getDocumentById(ASCII.String(entry.getKey()), CollectionSchema.sku.getSolrFieldName()).getFieldValue(CollectionSchema.sku.getSolrFieldName()); ConcurrentLog.info("CollectionConfiguration", "CR for " + url); ConcurrentLog.info("CollectionConfiguration", ">> " + entry.getValue().toString()); } catch (final IOException e) { ConcurrentLog.logException(e); } } } /** * Calculate the number of internal links from a specific document, denoted by the document ID. * This is a very important attribute for the ranking computation because it is the dividend for the previous ranking attribute. * The internalLinks value will be requested several times for the same id during the convergenceStep()-steps; therefore it should use a cache. * This cache is part of the CRHost data structure. * @param id * @return the number of links from the document, denoted by the ID to documents within the same domain */ public int getInternalLinks(final byte[] id) { int il = (int) this.internal_links_counter.get(id); if (il >= 0) return il; SolrConnector connector = this.segment.fulltext().getDefaultConnector(); if (connector == null) return 0; try { SolrDocument doc = connector.getDocumentById(ASCII.String(id), CollectionSchema.inboundlinkscount_i.getSolrFieldName()); if (doc == null) { this.internal_links_counter.put(id, 0); return 0; } Object x = doc.getFieldValue(CollectionSchema.inboundlinkscount_i.getSolrFieldName()); il = (x == null) ? 0 : (x instanceof Integer) ? ((Integer) x).intValue() : (x instanceof Long) ? ((Long) x).intValue() : 0; this.internal_links_counter.put(id, il); return il; } catch (final IOException e) { ConcurrentLog.logException(e); } catch (final SpaceExceededException e) { ConcurrentLog.logException(e); } try {this.internal_links_counter.put(id, 0);} catch (final SpaceExceededException e) {} return 0; } /** * Use the crt cache to compute the next generation of crt values. * @return */ public boolean convergenceStep() { boolean convergence = true; double df = (1.0d - damping) / this.cr_host_count; try { for (Map.Entry entry: this.crt.entrySet()) { byte[] id = entry.getKey(); ReferenceReport rr = this.rrCache.getReferenceReport(id, false); // sum up the cr of the internal links HandleSet iids = rr.getInternallIDs(); double ncr = 0.0d; for (byte[] iid: iids) { int ilc = getInternalLinks(iid); if (ilc > 0) { // if (ilc == 0) then the reference report is wrong! double[] d = this.crt.get(iid); // d[] could be empty at some situations if (d != null && d.length > 0) { ncr += d[0] / ilc; } else { // Output a warning that d[] is empty ConcurrentLog.warn("COLLECTION", "d[] is empty, iid=" + iid); break; } } } ncr = df + damping * ncr; if (convergence && !eqd(ncr, entry.getValue()[0])) convergence = false; entry.getValue()[1] = ncr; } // after the loop, replace the old value with the new value in crt for (Map.Entry entry: this.crt.entrySet()) { entry.getValue()[0] = entry.getValue()[1]; } } catch (final IOException e) { } return convergence; } /** * helper method to check if two doubles are equal using a specific number of digits * @param a * @param b * @return */ private boolean eqd(final double a, final double b) { return ((int) (a * this.converge_eq_factor)) == ((int) (b * this.converge_eq_factor)); } } /** * this method compresses a list of protocol names to an indexed list. * To do this, all 'http' entries are removed and considered as default. * The remaining entries are indexed as follows: a list of -

entries is produced, where * is an index pointing to the original index of the protocol entry and

is the protocol entry itself. * The entry is formatted as a 3-digit decimal number with leading zero digits. * @param protocol * @return a list of indexed protocol entries */ private static List protocolList2indexedList(final List protocol) { List a = new ArrayList(); String p; for (int i = 0; i < protocol.size(); i++) { p = protocol.get(i); if (!p.equals("http")) { String c = Integer.toString(i); while (c.length() < 3) c = "0" + c; a.add(c + "-" + p); } } return a; } /** * encode a string containing attributes from anchor rel properties binary: * bit 0: "me" contained in rel * bit 1: "nofollow" contained in rel * @param rel * @return binary encoded information about rel */ /* private static List relEval(final List rel) { List il = new ArrayList(rel.size()); for (final String s: rel) { int i = 0; final String s0 = s.toLowerCase().trim(); if ("me".equals(s0)) i += 1; if ("nofollow".equals(s0)) i += 2; il.add(i); } return il; } */ public static class FailDoc { DigestURL digestURL; final Map collections; final String failReason; final FailType failType; final int httpstatus; final Date failtime; public FailDoc(final DigestURL digestURL, final Map collections, final String failReason, final FailType failType, final int httpstatus) { this.digestURL = digestURL; this.collections = collections; this.failReason = failReason; this.failType = failType; this.httpstatus = httpstatus; this.failtime = new Date(); } public FailDoc(final SolrDocument doc) { try { this.digestURL = new DigestURL((String) doc.getFieldValue(CollectionSchema.sku.getSolrFieldName())); } catch (MalformedURLException e) { this.digestURL = null; } this.collections = new HashMap(); Collection c = doc.getFieldValues(CollectionSchema.collection_sxt.getSolrFieldName()); for (Object cn: c) this.collections.put((String) cn, QueryParams.catchall_pattern); this.failReason = (String) doc.getFieldValue(CollectionSchema.failreason_s.getSolrFieldName()); this.failType = FailType.valueOf((String) doc.getFieldValue(CollectionSchema.failtype_s.getSolrFieldName())); this.httpstatus = (Integer) doc.getFieldValue(CollectionSchema.httpstatus_i.getSolrFieldName()); this.failtime = (Date) doc.getFieldValue(CollectionSchema.load_date_dt.getSolrFieldName()); } public DigestURL getDigestURL() { return digestURL; } public Map getCollections() { return collections; } public String getFailReason() { return failReason; } public FailType getFailType() { return failType; } public int getHttpstatus() { return httpstatus; } public SolrInputDocument toSolr(CollectionConfiguration configuration) { boolean allAttr = configuration.isEmpty(); assert allAttr || configuration.contains(CollectionSchema.failreason_s); final SolrInputDocument doc = new SolrInputDocument(); String url = configuration.addURIAttributes(doc, allAttr, this.getDigestURL(), Response.docType(this.getDigestURL())); if (allAttr || configuration.contains(CollectionSchema.load_date_dt)) configuration.add(doc, CollectionSchema.load_date_dt, new Date()); // fail reason and status if (allAttr || configuration.contains(CollectionSchema.failreason_s)) configuration.add(doc, CollectionSchema.failreason_s, this.getFailReason()); if (allAttr || configuration.contains(CollectionSchema.failtype_s)) configuration.add(doc, CollectionSchema.failtype_s, this.getFailType().name()); if (allAttr || configuration.contains(CollectionSchema.httpstatus_i)) configuration.add(doc, CollectionSchema.httpstatus_i, this.getHttpstatus()); if (allAttr || configuration.contains(CollectionSchema.collection_sxt) && this.getCollections() != null && this.getCollections().size() > 0) { List cs = new ArrayList(); for (Map.Entry e: this.getCollections().entrySet()) { if (e.getValue().matcher(url).matches()) cs.add(e.getKey()); } configuration.add(doc, CollectionSchema.collection_sxt, cs); } // clickdepth, cr and postprocessing Set processTypes = new LinkedHashSet(); if ((allAttr || configuration.contains(CollectionSchema.clickdepth_i))) { processTypes.add(ProcessType.CLICKDEPTH); // postprocessing needed; this is also needed if the depth is positive; there could be a shortcut CollectionSchema.clickdepth_i.add(doc, digestURL.probablyRootURL() ? 0 : 999); // no lazy value checking to get a '0' into the index } if (allAttr || (configuration.contains(CollectionSchema.cr_host_chance_d) && configuration.contains(CollectionSchema.cr_host_count_i) && configuration.contains(CollectionSchema.cr_host_norm_i))) { processTypes.add(ProcessType.CITATION); // postprocessing needed } if (allAttr || configuration.contains(CollectionSchema.process_sxt)) { List p = new ArrayList(); for (ProcessType t: processTypes) p.add(t.name()); configuration.add(doc, CollectionSchema.process_sxt, p); } return doc; } } }