Current File : //proc/309157/root/home/waritko/yacy/source/net/yacy/kelondro/data/meta/URIMetadataNode.java
/**
* URIMetadataNode
* Copyright 2012 by Michael Peter Christen
* First released 10.8.2012 at http://yacy.net
*
* This file is part of YaCy Content Integration
*
* 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 <http://www.gnu.org/licenses/>.
*/
package net.yacy.kelondro.data.meta;
import java.awt.Dimension;
import java.io.IOException;
import java.net.MalformedURLException;
import java.text.ParseException;
import java.time.DateTimeException;
import java.time.LocalDate;
import java.time.ZoneOffset;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Locale;
import java.util.Properties;
import java.util.Set;
import java.util.regex.Pattern;
import org.apache.solr.common.SolrDocument;
import net.yacy.cora.date.GenericFormatter;
import net.yacy.cora.date.MicroDate;
import net.yacy.cora.document.analysis.Classification;
import net.yacy.cora.document.analysis.Classification.ContentDomain;
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.SolrType;
import net.yacy.cora.lod.vocabulary.Tagging;
import net.yacy.cora.order.Base64Order;
import net.yacy.cora.util.ConcurrentLog;
import net.yacy.crawler.retrieval.Response;
import net.yacy.document.SentenceReader;
import net.yacy.document.Tokenizer;
import net.yacy.document.parser.pdfParser;
import net.yacy.document.parser.html.ContentScraper;
import net.yacy.document.parser.html.IconEntry;
import net.yacy.document.parser.html.IconLinkRelations;
import net.yacy.kelondro.data.word.Word;
import net.yacy.kelondro.data.word.WordReferenceRow;
import net.yacy.kelondro.data.word.WordReferenceVars;
import net.yacy.kelondro.util.Bitfield;
import net.yacy.kelondro.util.MapTools;
import net.yacy.kelondro.util.kelondroException;
import net.yacy.peers.Seed;
import net.yacy.peers.SeedDB;
import net.yacy.search.index.Segment;
import net.yacy.search.query.QueryParams;
import net.yacy.search.schema.CollectionConfiguration;
import net.yacy.search.schema.CollectionSchema;
import net.yacy.search.snippet.TextSnippet;
import net.yacy.utils.crypt;
/**
* This is the URIMetadata object implementation for Solr documents.
* The purpose of this object is the migration from the old metadata structure to solr document.
* Future implementations should try to replace URIMetadata objects completely by SolrDocument objects
*/
public class URIMetadataNode extends SolrDocument /* implements Comparable<URIMetadataNode>, Comparator<URIMetadataNode> */ {
private static final long serialVersionUID = -256046934741561968L;
protected String keywords = null;
protected DigestURL url;
protected Bitfield flags = null;
protected int imagec = -1, audioc = -1, videoc = -1, appc = -1;
protected double lat = Double.NaN, lon = Double.NaN;
protected long score = 0; // during generation of a search result this value is set
protected String snippet = null;
protected WordReferenceVars word = null; // this is only used if the url is transported via remote search requests
// fields for search results (implemented from ResultEntry)
private String alternative_urlstring;
private String alternative_urlname;
private TextSnippet textSnippet = null;
/**
* Creates an instance from encoded properties.
* @param prop encoded properties
* @param collection collection origin (e.g. "dht")
* @throws MalformedURLException
*/
public URIMetadataNode(final Properties prop, String collection) throws MalformedURLException {
// generates an plasmaLURLEntry using the properties from the argument
// the property names must correspond to the one from toString
//System.out.println("DEBUG-ENTRY: prop=" + prop.toString());
super();
final String urlRaw = crypt.simpleDecode(prop.getProperty("url", ""));
url = new DigestURL(urlRaw);
String descr = crypt.simpleDecode(prop.getProperty("descr", "")); if (descr == null) descr = "";
String dc_creator = crypt.simpleDecode(prop.getProperty("author", "")); if (dc_creator == null) dc_creator = "";
String tags = crypt.simpleDecode(prop.getProperty("tags", "")); if (tags == null) tags = "";
this.keywords = Tagging.cleanTagFromAutotagging(tags);
String dc_publisher = crypt.simpleDecode(prop.getProperty("publisher", "")); if (dc_publisher == null) dc_publisher = "";
String lons = crypt.simpleDecode(prop.getProperty("lon"));
String lats = crypt.simpleDecode(prop.getProperty("lat"));
this.setField(CollectionSchema.title.name(), descr);
this.setField(CollectionSchema.author.name(), dc_creator);
this.setField(CollectionSchema.publisher_t.name(), dc_publisher);
this.lon = (lons == null) ? 0.0d : Double.parseDouble(lons);
this.lat = (lats == null) ? 0.0d : Double.parseDouble(lats);
this.setField(CollectionSchema.last_modified.name(), parseShortDayDate(prop.getProperty("mod", "20000101")));
this.setField(CollectionSchema.load_date_dt.name(), parseShortDayDate(prop.getProperty("load", "20000101")));
this.setField(CollectionSchema.fresh_date_dt.name(), parseShortDayDate(prop.getProperty("fresh", "20000101")));
this.setField(CollectionSchema.referrer_id_s.name(), prop.getProperty("referrer", ""));
// this.setField(CollectionSchema.md5_s.name(), prop.getProperty("md5", "")); // always 0 (not used / calculated)
this.setField(CollectionSchema.size_i.name(), Integer.parseInt(prop.getProperty("size", "0")));
this.setField(CollectionSchema.wordcount_i.name(), Integer.parseInt(prop.getProperty("wc", "0")));
final String dt = prop.getProperty("dt", "t");
final String mime = crypt.simpleDecode(prop.getProperty("mime")); // optional included if it is not equal to doctype2mime()
if (mime != null && !mime.isEmpty() && Response.docType(mime) == dt.charAt(0)) { // use supplied mime (if docType(mime) is equal it's a known valid mime)
this.setField(CollectionSchema.content_type.name(), mime);
} else {
final String[] mimes = Response.doctype2mime(null, dt.charAt(0));
this.setField(CollectionSchema.content_type.name(), mimes);
}
final String flagsp = prop.getProperty("flags", "AAAAAA");
this.flags = (flagsp.length() > 6) ? QueryParams.empty_constraint : (new Bitfield(4, flagsp));
this.setField(CollectionSchema.language_s.name(), prop.getProperty("lang", ""));
this.setField(CollectionSchema.inboundlinkscount_i.name(), Integer.parseInt(prop.getProperty("llocal", "0")));
this.setField(CollectionSchema.outboundlinkscount_i.name(), Integer.parseInt(prop.getProperty("lother", "0")));
this.imagec = Integer.parseInt(prop.getProperty("limage", "0"));
this.audioc = Integer.parseInt(prop.getProperty("laudio", "0"));
this.videoc = Integer.parseInt(prop.getProperty("lvideo", "0"));
this.appc = Integer.parseInt(prop.getProperty("lapp", "0"));
this.snippet = crypt.simpleDecode(prop.getProperty("snippet", ""));
// this.score = Float.parseFloat(prop.getProperty("score", "0.0")); // we don't use the remote rwi ranking but the local rwi ranking profile
List<String> cs = new ArrayList<String>();
cs.add(collection);
this.setField(CollectionSchema.collection_sxt.name(), cs);
this.word = null;
if (prop.containsKey("wi")) {
this.word = new WordReferenceVars(new WordReferenceRow(Base64Order.enhancedCoder.decodeString(prop.getProperty("wi", ""))), false);
}
if (prop.containsKey("favicon")) {
final String rawFaviconURL = crypt.simpleDecode(prop.getProperty("favicon", ""));
DigestURL faviconURL = new DigestURL(rawFaviconURL);
this.setIconsFields(faviconURL);
}
}
public URIMetadataNode(final SolrDocument doc) throws MalformedURLException {
super();
for (String name : doc.getFieldNames()) {
this.setField(name, doc.getFieldValue(name));
}
/* score shall contain the YaCy score, getFieldValue("score") moved to
* SearchEvent.addNodes() where the YaCy ranking for nodes is calculated
Float scorex = (Float) doc.getFieldValue("score"); // this is a special Solr field containing the ranking score of a search result
this.score = scorex == null ? 0.0f : scorex.floatValue();
*/
final String hashstr = getString(CollectionSchema.id); // id or empty string
final String urlRaw = getString(CollectionSchema.sku);
this.url = new DigestURL(urlRaw);
if (!hashstr.isEmpty()) { // remote id might not correspond in all cases
final String myhash = ASCII.String(this.url.hash());
if (!hashstr.equals(myhash)) {
this.setField(CollectionSchema.id.getSolrFieldName(), myhash);
ConcurrentLog.fine("URIMetadataNode", "updated document.ID of " + urlRaw + " from " + hashstr + " to " + myhash);
// ususally the hosthash matches but just to be on the safe site
final String hostidstr = getString(CollectionSchema.host_id_s); // id or empty string
if (!hostidstr.isEmpty() && !hostidstr.equals(this.url.hosthash())) {
this.setField(CollectionSchema.host_id_s.getSolrFieldName(), this.url.hosthash());
}
}
}
}
/**
* @param doc metadata from (embedded) Solr index
* @param searchedWord rwi WordReference the metadata belong to
* @param scorex rwi score
* @throws MalformedURLException
*/
public URIMetadataNode(final SolrDocument doc, final WordReferenceVars searchedWord, final long scorex) throws MalformedURLException {
this(doc);
this.word = searchedWord; // rwi index WordReference this document (metadata) belong to
this.score = scorex; // rwi/YaCy score
}
public URIMetadataNode(DigestURL theurl) {
super();
url = theurl;
this.setField(CollectionSchema.sku.name(), url.toNormalform(true));
this.setField(CollectionSchema.id.name(), ASCII.String(url.hash()));
}
/**
* Get the content domain of a document. This tries to get the content domain from the mime type
* and if this fails it uses alternatively the content domain from the file extension.
* @return the content domain which classifies the content type
*/
public ContentDomain getContentDomain() {
String mime = mime();
if (mime == null) return this.url.getContentDomainFromExt();
ContentDomain contentDomain = Classification.getContentDomainFromMime(mime);
if (contentDomain != ContentDomain.ALL) return contentDomain;
return this.url.getContentDomainFromExt();
}
public byte[] hash() {
return this.url.hash();
}
public String hosthash() {
String hosthash = (String) this.getFieldValue(CollectionSchema.host_id_s.getSolrFieldName());
if (hosthash == null) hosthash = this.url.hosthash();
return hosthash;
}
public Date moddate() {
return getDate(CollectionSchema.last_modified);
}
public Date[] datesInContent() {
return getDates(CollectionSchema.dates_in_content_dts);
}
public DigestURL url() {
return this.url;
}
public boolean matches(Pattern pattern) {
return pattern.matcher(this.url.toNormalform(true)).matches();
//CharacterRunAutomaton automaton = new CharacterRunAutomaton(matcher);
//boolean match = automaton.run(this.url.toNormalform(true).toLowerCase(Locale.ROOT));
//return match;
}
public String dc_title() {
ArrayList<String> a = getStringList(CollectionSchema.title);
if (a == null || a.size() == 0) return "";
return a.get(0);
}
public List<String> h1() {
ArrayList<String> a = getStringList(CollectionSchema.h1_txt);
if (a == null || a.size() == 0) return new ArrayList<String>(0);
return a;
}
public List<String> h2() {
ArrayList<String> a = getStringList(CollectionSchema.h2_txt);
if (a == null || a.size() == 0) return new ArrayList<String>(0);
return a;
}
public List<String> h3() {
ArrayList<String> a = getStringList(CollectionSchema.h3_txt);
if (a == null || a.size() == 0) return new ArrayList<String>(0);
return a;
}
public List<String> h4() {
ArrayList<String> a = getStringList(CollectionSchema.h4_txt);
if (a == null || a.size() == 0) return new ArrayList<String>(0);
return a;
}
public List<String> h5() {
ArrayList<String> a = getStringList(CollectionSchema.h5_txt);
if (a == null || a.size() == 0) return new ArrayList<String>(0);
return a;
}
public List<String> h6() {
ArrayList<String> a = getStringList(CollectionSchema.h6_txt);
if (a == null || a.size() == 0) return new ArrayList<String>(0);
return a;
}
public String dc_creator() {
return getString(CollectionSchema.author);
}
public String dc_publisher() {
return getString(CollectionSchema.publisher_t);
}
public String dc_subject() {
if (this.keywords == null) {
this.keywords = getString(CollectionSchema.keywords);
}
return this.keywords;
}
public double lat() {
if (Double.isNaN(this.lat)) {
this.lon = 0.0d;
this.lat = 0.0d;
String latlon = (String) this.getFieldValue(CollectionSchema.coordinate_p.getSolrFieldName());
if (latlon != null) {
int p = latlon.indexOf(',');
if (p > 0) {
// only needed if not already checked by solr coordinate
if (latlon.charAt(0) <= '9') { // prevent alpha's
this.lat = Double.parseDouble(latlon.substring(0, p));
if (this.lat < -90.0d || this.lat > 90.0d) this.lat = 0.0d;
}
if ( (p < latlon.length()-1) && (latlon.charAt(p+1) <= '9') ) {
this.lon=Double.parseDouble(latlon.substring(p + 1));
if (this.lon < -180.0d || this.lon > 180.0d) this.lon = 0.0d;
}
}
}
}
return this.lat;
}
public double lon() {
if (Double.isNaN(this.lon)) lat();
return this.lon;
}
/**
* Get the YaCy ranking score for this entry
* (the value is updated while adding to the result queue where score calc takes place)
* @return YaCy calculated score (number > 0)
*/
public long score() {
return this.score;
}
/**
* Set the YaCy ranking score to make it accessible in the search interface/api
* (should be set to the effective value of result queues getWeight)
* @param theScore YaCy ranking of search results
*/
public void setScore(long theScore) {
this.score = theScore;
}
public Date loaddate() {
return getDate(CollectionSchema.load_date_dt);
}
/**
* Get calculated date until resource shall be considered as fresh
* this may be a date in future
*
* @return Date initally calculated to (loaddate + (loaddate - lastmodified)/2)
*/
public Date freshdate() {
// getDate() can't be used as it checks for date <= now
Date x = (Date) this.getFieldValue(CollectionSchema.fresh_date_dt.getSolrFieldName());
if (x == null) return new Date(0);
return x;
}
/**
* @deprecated obsolete, never assigned a value
*/
@Deprecated
public String md5() {
return getString(CollectionSchema.md5_s);
}
public char doctype() {
ArrayList<String> a = getStringList(CollectionSchema.content_type);
if (a == null || a.size() == 0) return Response.docType(url());
return Response.docType(a.get(0));
}
public String mime() {
ArrayList<String> mime = getStringList(CollectionSchema.content_type);
return mime == null || mime.size() == 0 ? null : mime.get(0);
}
/**
* Content language
* @return 2-char language code or empty string
*/
public String language() {
String language = getString(CollectionSchema.language_s);
return language;
}
public byte[] referrerHash() {
String referrer = getString(CollectionSchema.referrer_id_s);
if (referrer == null || referrer.length() == 0) return null;
return ASCII.getBytes(referrer);
}
/**
* gives the size in byte of the original url document
* @return filesize of url
*/
public int filesize() {
return getInt(CollectionSchema.size_i);
}
public Bitfield flags() {
if (flags == null) {
this.flags = new Bitfield();
if (dc_subject() != null && dc_subject().indexOf("indexof") >= 0) this.flags.set(Tokenizer.flag_cat_indexof, true);
ContentDomain cd = getContentDomain();
if (lon() != 0.0d || lat() != 0.0d) this.flags.set(Tokenizer.flag_cat_haslocation, true);
if (cd == ContentDomain.IMAGE || limage() > 0) this.flags.set(Tokenizer.flag_cat_hasimage, true);
if (cd == ContentDomain.AUDIO || laudio() > 0) this.flags.set(Tokenizer.flag_cat_hasaudio, true);
if (cd == ContentDomain.VIDEO || lvideo() > 0) this.flags.set(Tokenizer.flag_cat_hasvideo, true);
if (cd == ContentDomain.APP) this.flags.set(Tokenizer.flag_cat_hasapp, true);
if (lapp() > 0) this.flags.set(Tokenizer.flag_cat_hasapp, true);
}
return this.flags;
}
public int wordCount() {
return getInt(CollectionSchema.wordcount_i);
}
/**
* in case that images are embedded in the document, get one image which can be used as thumbnail
* @return the first embedded image url
* @throws UnsupportedOperationException when there is no image URL referenced on this document
*/
public String imageURL() throws UnsupportedOperationException {
if (limage() == 0) throw new UnsupportedOperationException();
List<String> images_protocol = CollectionConfiguration.indexedList2protocolList(getFieldValues(CollectionSchema.images_protocol_sxt.getSolrFieldName()), limage());
List<String> images_stub = getStringList(CollectionSchema.images_urlstub_sxt);
int c = Math.min(images_protocol.size(), images_stub.size());
if (c == 0) throw new UnsupportedOperationException();
String url = images_protocol.get(0) + "://" + images_stub.get(0);
return url;
}
public int llocal() {
return getInt(CollectionSchema.inboundlinkscount_i);
}
public int lother() {
return getInt(CollectionSchema.outboundlinkscount_i);
}
public int limage() {
if (this.imagec == -1) {
this.imagec = getInt(CollectionSchema.imagescount_i);
}
return this.imagec;
}
public int laudio() {
if (this.audioc == -1) {
this.audioc = getInt(CollectionSchema.audiolinkscount_i);
}
return this.audioc;
}
public int lvideo() {
if (this.videoc == -1) {
this.videoc = getInt(CollectionSchema.videolinkscount_i);
}
return this.videoc;
}
public int lapp() {
if (this.appc == -1) {
this.appc = getInt(CollectionSchema.applinkscount_i);
}
return this.appc;
}
public int virtualAge() {
return MicroDate.microDateDays(moddate());
}
public int wordsintitle() {
ArrayList<Integer> x = getIntList(CollectionSchema.title_words_val);
if (x == null || x.size() == 0) return 0;
return x.get(0).intValue();
}
public int urllength() {
return getInt(CollectionSchema.url_chars_i);
}
public String snippet() {
return this.snippet;
}
public String[] collections() {
ArrayList<String> a = getStringList(CollectionSchema.collection_sxt);
return a.toArray(new String[a.size()]);
}
public WordReferenceVars word() {
return this.word;
}
public static Iterator<String> getLinks(SolrDocument doc, boolean inbound) {
Collection<Object> urlstub = doc.getFieldValues((inbound ? CollectionSchema.inboundlinks_urlstub_sxt : CollectionSchema.outboundlinks_urlstub_sxt).getSolrFieldName());
Collection<String> urlprot = urlstub == null ? null : CollectionConfiguration.indexedList2protocolList(doc.getFieldValues((inbound ? CollectionSchema.inboundlinks_protocol_sxt : CollectionSchema.outboundlinks_protocol_sxt).getSolrFieldName()), urlstub.size());
String u;
LinkedHashSet<String> list = new LinkedHashSet<String>();
if (urlprot != null && urlstub != null) {
assert urlprot.size() == urlstub.size();
Object[] urlprota = urlprot.toArray();
Object[] urlstuba = urlstub.toArray();
for (int i = 0; i < urlprota.length; i++) {
u = ((String) urlprota[i]) + "://" + ((String) urlstuba[i]);
int hp = u.indexOf('#');
if (hp > 0) u = u.substring(0, hp);
list.add(u);
}
}
return list.iterator();
}
/**
* Extracts icon entries from this solr document
* @return icon entries collection eventually empty
*/
public final Collection<IconEntry> getIcons() {
Collection<IconEntry> icons = new ArrayList<>();
List<?> iconsUrlStubsList = getFieldValuesAsList(CollectionSchema.icons_urlstub_sxt.getSolrFieldName());
if (iconsUrlStubsList != null) {
List<String> ports = CollectionConfiguration.indexedList2protocolList(
getFieldValues(CollectionSchema.icons_protocol_sxt.getSolrFieldName()), iconsUrlStubsList.size());
List<?> allSizes = getFieldValuesAsList(CollectionSchema.icons_sizes_sxt.getSolrFieldName());
List<?> allRels = getFieldValuesAsList(CollectionSchema.icons_rel_sxt.getSolrFieldName());
Object item;
for (int index = 0; index < iconsUrlStubsList.size(); index++) {
item = iconsUrlStubsList.get(index);
String urlStub = null;
if (item instanceof String) {
urlStub = (String) item;
String iconURLStr = (ports != null && ports.size() > index ? ports.get(index) : "http") + "://" + urlStub;
DigestURL iconURL;
try {
iconURL = new DigestURL(iconURLStr);
} catch (MalformedURLException e) {
continue;
}
Set<String> rels = null;
if (allRels.size() > index) {
item = allRels.get(index);
if (item instanceof String) {
rels = ContentScraper.parseSpaceSeparatedTokens((String) item);
}
}
/* This may happen when icons_rel_sxt field has been disabled in solr schema */
if(rels == null) {
rels = new HashSet<>();
rels.add("unknown");
}
Set<Dimension> sizes = null;
if (allSizes.size() > index) {
item = allSizes.get(index);
if (item instanceof String) {
sizes = ContentScraper.parseSizes((String) item);
}
}
icons.add(new IconEntry(iconURL, rels, sizes));
}
}
}
return icons;
}
/**
* Try to extract icon entry with preferred size from this solr document.
* We look preferably for a standard icon but accept as a fallback other icons.
* @param preferredSize preferred size
* @return icon entry or null
*/
public IconEntry getFavicon(Dimension preferredSize) {
IconEntry faviconEntry = null;
boolean foundStandard = false;
double closestDistance = Double.MAX_VALUE;
for (IconEntry icon : this.getIcons()) {
boolean isStandard = icon.isStandardIcon();
double distance = IconEntry.getDistance(icon.getClosestSize(preferredSize), preferredSize);
boolean match = false;
if (foundStandard) {
/*
* Already found a standard icon : now must find a standard icon
* with closer size
*/
match = isStandard && distance < closestDistance;
} else {
/*
* No standard icon yet found : prefer a standard icon, or check
* size
*/
match = isStandard || distance <= closestDistance;
}
if (match) {
faviconEntry = icon;
closestDistance = distance;
foundStandard = isStandard;
if (isStandard && distance == 0.0) {
break;
}
}
}
return faviconEntry;
}
/**
* Use iconURL to set icons related field on this solr document.
*
* @param iconURL icon URL
*/
private void setIconsFields(DigestURL iconURL) {
final List<String> protocols = new ArrayList<String>(1);
final List<String> sizes = new ArrayList<String>(1);
final List<String> stubs = new ArrayList<String>(1);
final List<String> rels = new ArrayList<String>(1);
if (iconURL != null) {
String protocol = iconURL.getProtocol();
protocols.add(protocol);
sizes.add("");
stubs.add(iconURL.toString().substring(protocol.length() + 3));
rels.add(IconLinkRelations.ICON.getRelValue());
}
this.setField(CollectionSchema.icons_protocol_sxt.name(), protocols);
this.setField(CollectionSchema.icons_urlstub_sxt.name(), stubs);
this.setField(CollectionSchema.icons_rel_sxt.name(), rels);
this.setField(CollectionSchema.icons_sizes_sxt.name(), sizes);
}
/**
* @param name field name
* @return field values from field name eventually immutable empty list when field has no values or is not a List
*/
public List<?> getFieldValuesAsList(String name) {
Collection<Object> fieldValues = getFieldValues(name);
List<?> list;
if (fieldValues instanceof List<?>) {
list = (List<?>) fieldValues;
} else {
list = Collections.EMPTY_LIST;
}
return list;
}
public static Date getDate(SolrDocument doc, final CollectionSchema key) {
Date x = doc == null ? null : (Date) doc.getFieldValue(key.getSolrFieldName());
Date now = new Date();
return (x == null) ? new Date(0) : x.after(now) ? now : x;
}
public String getText() {
return getString(CollectionSchema.text_t);
}
public List<StringBuilder> getSentences(final boolean pre) {
List<StringBuilder> sentences = new ArrayList<>();
String text = this.getText();
if (text == null || text.length() == 0) return sentences;
SentenceReader sr = new SentenceReader(text, pre);
while (sr.hasNext()) sentences.add(sr.next());
sr.close();
sr = null;
text = null;
return sentences;
}
public ArrayList<String> getDescription() {
return getStringList(CollectionSchema.description_txt);
}
public static URIMetadataNode importEntry(final String propStr, String collection) {
if (propStr == null || propStr.isEmpty() || propStr.charAt(0) != '{' || !propStr.endsWith("}")) {
ConcurrentLog.severe("URIMetadataNode", "importEntry: propStr is not proper: " + propStr);
return null;
}
try {
return new URIMetadataNode(MapTools.s2p(propStr.substring(1, propStr.length() - 1)), collection);
} catch (final kelondroException | MalformedURLException e) {
// wrong format
ConcurrentLog.severe("URIMetadataNode", e.getMessage());
return null;
}
}
/**
* Format a date using the short day format.
* @param date the date to format. Must not be null.
* @return the formatted date
* @throws NullPointerException when date is null.
*/
private String formatShortDayDate(final Date date) {
String formattedDate;
try {
/* Prefer using first the thread-safe shared instance of DateTimeFormatter */
formattedDate = GenericFormatter.FORMAT_SHORT_DAY.format(date.toInstant());
} catch (final DateTimeException e) {
/*
* Should not happen, but rather than failing it is preferable to use the old
* formatter which uses synchronization locks
*/
formattedDate = GenericFormatter.SHORT_DAY_FORMATTER.format(date);
}
return formattedDate;
}
/**
* Parse a date string with the short day format.
*
* @param dateStr
* a date representation as a String. Must not be null.
* @return the parsed Date or the current date when an parsing error occurred.
*/
private Date parseShortDayDate(final String dateStr) {
Date parsed;
try {
/* Prefer using first the thread-safe shared instance of DateTimeFormatter */
parsed = Date.from(LocalDate.parse(dateStr, GenericFormatter.FORMAT_SHORT_DAY).atStartOfDay()
.toInstant(ZoneOffset.UTC));
} catch (final RuntimeException e) {
/* Retry with the old formatter which uses synchronization locks */
try {
parsed = GenericFormatter.SHORT_DAY_FORMATTER.parse(dateStr, 0).getTime();
} catch (final ParseException pe) {
parsed = new Date();
}
}
return parsed;
}
protected StringBuilder corePropList() {
// generate a parseable string; this is a simple property-list
final StringBuilder s = new StringBuilder(300);
try {
s.append("hash=").append(ASCII.String(this.hash()));
s.append(",url=").append(crypt.simpleEncode(this.url().toNormalform(true)));
s.append(",descr=").append(crypt.simpleEncode(this.dc_title()));
s.append(",author=").append(crypt.simpleEncode(this.dc_creator()));
s.append(",tags=").append(crypt.simpleEncode(Tagging.cleanTagFromAutotagging(this.dc_subject())));
s.append(",publisher=").append(crypt.simpleEncode(this.dc_publisher()));
s.append(",lat=").append(this.lat());
s.append(",lon=").append(this.lon());
s.append(",mod=").append(formatShortDayDate(this.moddate()));
s.append(",load=").append(formatShortDayDate(this.loaddate()));
s.append(",fresh=").append(formatShortDayDate(this.freshdate()));
s.append(",referrer=").append(this.referrerHash() == null ? "" : ASCII.String(this.referrerHash()));
//s.append(",md5=").append(this.md5()); // md5 never calculated / not used, also removed from this(prop) 2015-11-27
s.append(",size=").append(this.filesize());
s.append(",wc=").append(this.wordCount());
final char dt = this.doctype();
s.append(",dt=").append(dt);
// if default revert from doctype to mime doesn't match actual mime,
// include mime in the properties
final String mime = this.mime();
if (mime != null) {
final String[] mimex = Response.doctype2mime(null,dt);
if (!mime.equals(mimex[0])) { // include mime if not equal to recalc by dt (to make sure correct mime is recorded)
s.append(",mime=").append(crypt.simpleEncode(mime));
}
}
s.append(",flags=").append(this.flags().exportB64());
s.append(",lang=").append(this.language());
s.append(",llocal=").append(this.llocal());
s.append(",lother=").append(this.lother());
s.append(",limage=").append(this.limage());
s.append(",laudio=").append(this.laudio());
s.append(",lvideo=").append(this.lvideo());
s.append(",lapp=").append(this.lapp());
s.append(",score=").append(Long.toString(this.score()));
if (this.word() != null) {
// append also word properties
final String wprop = this.word().toPropertyForm();
s.append(",wi=").append(Base64Order.enhancedCoder.encodeString(wprop));
}
/* Add favicon URL with preferred size being 16x16 pixels if known */
if(!this.getIcons().isEmpty()) {
IconEntry faviconEntry = this.getFavicon(new Dimension(16, 16));
if(faviconEntry != null) {
s.append(",favicon=").append(crypt.simpleEncode(faviconEntry.getUrl().toNormalform(false)));
}
}
return s;
} catch (final Throwable e) {
ConcurrentLog.logException(e);
return null;
}
}
/**
* the toString format to transport the data over p2p connections.
*/
public String toString(String snippet) {
// add information needed for remote transport
final StringBuilder core = corePropList();
if (core == null)
return null;
core.ensureCapacity(core.length() + snippet.length() * 2);
core.insert(0, '{');
core.append(",snippet=").append(crypt.simpleEncode(snippet));
core.append('}');
return core.toString();
//return "{" + core + ",snippet=" + crypt.simpleEncode(snippet) + "}";
}
/**
* @return the object as String.<br>
* This e.g. looks like this:
* <pre>{hash=jmqfMk7Y3NKw,referrer=------------,mod=20050610,load=20051003,size=51666,wc=1392,cc=0,local=true,q=AEn,dt=h,lang=uk,url=b|aHR0cDovL3d3dy50cmFuc3BhcmVuY3kub3JnL3N1cnZleXMv,descr=b|S25vd2xlZGdlIENlbnRyZTogQ29ycnVwdGlvbiBTdXJ2ZXlzIGFuZCBJbmRpY2Vz}</pre>
* and is used in the peer to peer exchange*
*/
@Override
public String toString() {
final StringBuilder core = corePropList();
if (core == null) return null;
core.insert(0, '{');
core.append('}');
return core.toString();
}
private int getInt(CollectionSchema field) {
assert !field.isMultiValued();
assert field.getType() == SolrType.num_integer;
Object x = this.getFieldValue(field.getSolrFieldName());
if (x == null) return 0;
if (x instanceof Integer) return ((Integer) x).intValue();
if (x instanceof Long) return ((Long) x).intValue();
return 0;
}
private Date getDate(CollectionSchema field) {
assert !field.isMultiValued();
assert field.getType() == SolrType.date;
Date x = (Date) this.getFieldValue(field.getSolrFieldName());
if (x == null) return new Date(0);
Date now = new Date();
return x.after(now) ? now : x;
}
private Date[] getDates(CollectionSchema field) {
assert field.isMultiValued();
assert field.getType() == SolrType.date;
@SuppressWarnings("unchecked")
List<Date> x = (List<Date>) this.getFieldValue(field.getSolrFieldName());
if (x == null) return new Date[0];
return x.toArray(new Date[x.size()]);
}
private String getString(CollectionSchema field) {
assert !field.isMultiValued();
assert field.getType() == SolrType.string || field.getType() == SolrType.text_general || field.getType() == SolrType.text_en_splitting_tight;
Object x = this.getFieldValue(field.getSolrFieldName());
if (x == null) return "";
if (x instanceof ArrayList) {
@SuppressWarnings("unchecked")
ArrayList<String> xa = (ArrayList<String>) x;
return xa.size() == 0 ? "" : xa.get(0);
}
return (String) x;
}
@SuppressWarnings("unchecked")
private ArrayList<String> getStringList(CollectionSchema field) {
assert field.isMultiValued();
assert field.getType() == SolrType.string || field.getType() == SolrType.text_general;
Object r = this.getFieldValue(field.getSolrFieldName());
if (r == null) return new ArrayList<String>(0);
if (r instanceof ArrayList) {
return (ArrayList<String>) r;
}
ArrayList<String> a = new ArrayList<String>(1);
a.add((String) r);
return a;
}
@SuppressWarnings("unchecked")
private ArrayList<Integer> getIntList(CollectionSchema field) {
assert field.isMultiValued();
assert field.getType() == SolrType.num_integer;
Object r = this.getFieldValue(field.getSolrFieldName());
if (r == null) return new ArrayList<Integer>(0);
if (r instanceof ArrayList) {
return (ArrayList<Integer>) r;
}
ArrayList<Integer> a = new ArrayList<Integer>(1);
a.add((Integer) r);
return a;
}
// --- implementation for use as search result ----------
/**
* Initialisize some variables only needed for search results
* and eleminates underlaying fields not needed for search results
*
* ! never put this back to the index because of the reduced content fields
* @param indexSegment
* @param peers
* @param textSnippet
* @return
*/
public URIMetadataNode makeResultEntry(
final Segment indexSegment,
SeedDB peers,
final TextSnippet textSnippet) {
this.removeFields(CollectionSchema.text_t.getSolrFieldName()); // clear the text field which eats up most of the space; it was used for snippet computation which is in a separate field here
this.alternative_urlstring = null;
this.alternative_urlname = null;
this.textSnippet = textSnippet;
final String host = this.url().getHost();
if (host != null && host.endsWith(".yacyh")) {
// translate host into current IP
int p = host.indexOf('.');
final String hash = Seed.hexHash2b64Hash(host.substring(p + 1, host.length() - 6));
final Seed seed = peers.getConnected(hash);
final String path = this.url().getFile();
String address = null;
if(seed != null) {
final Set<String> ips = seed.getIPs();
if(!ips.isEmpty()) {
address = seed.getPublicAddress(ips.iterator().next());
}
}
if (address == null) {
// seed is not known from here
try {
if (indexSegment.termIndex() != null) indexSegment.termIndex().remove(
Word.words2hashesHandles(Tokenizer.getWords(
(path.replace('?', ' ') +
" " +
this.dc_title()), null).keySet()),
this.hash());
} catch (final IOException e) {
ConcurrentLog.logException(e);
}
indexSegment.fulltext().remove(this.hash()); // clean up
} else {
this.alternative_urlstring = "http://" + address + "/" + host.substring(0, p) + path;
this.alternative_urlname = "http://" + seed.getName() + ".yacy" + path;
if ((p = this.alternative_urlname.indexOf('?')) > 0) this.alternative_urlname = this.alternative_urlname.substring(0, p);
}
}
return this;
}
/**
* used for search result entry
*/
public String urlstring() {
if (this.alternative_urlstring != null) return this.alternative_urlstring;
if (!pdfParser.individualPages) return this.url().toNormalform(true);
if (!"pdf".equals(MultiProtocolURL.getFileExtension(this.url().getFileName()).toLowerCase(Locale.ROOT))) return this.url().toNormalform(true);
// for pdf links we rewrite the url
// this is a special treatment of pdf files which can be splitted into subpages
String pageprop = pdfParser.individualPagePropertyname;
String resultUrlstring = this.url().toNormalform(true);
int p = resultUrlstring.lastIndexOf(pageprop + "=");
if (p > 0) {
return resultUrlstring.substring(0, p - 1) + "#page=" + resultUrlstring.substring(p + pageprop.length() + 1);
}
return resultUrlstring;
}
/**
* used for search result entry
*/
public String urlname() {
return (this.alternative_urlname == null) ? MultiProtocolURL.unescape(urlstring()) : this.alternative_urlname;
}
/**
* used for search result entry
*/
public String title() {
String titlestr = this.dc_title();
// if title is empty use filename as title
if (titlestr.isEmpty()) { // if url has no filename, title is still empty (e.g. "www.host.com/" )
titlestr = this.url() != null ? this.url().getFileName() : "";
}
return titlestr;
}
/**
* used for search result entry
*/
public TextSnippet textSnippet() {
return this.textSnippet;
}
/**
* used for search result entry
*/
public Date[] events() {
return this.datesInContent();
}
/**
* used for search result entry
*/
public boolean hasTextSnippet() {
return (this.textSnippet != null) && (!this.textSnippet.getErrorCode().fail());
}
/**
* used for search result entry
*/
public String resource() {
// generate transport resource
if ((this.textSnippet == null) || (!this.textSnippet.exists())) {
return this.toString();
}
return this.toString(this.textSnippet.getLineRaw());
}
@Override
public int hashCode() {
return this.url().hashCode();
}
}
Mini Shell