//Document.java
//------------------------
//part of YaCy
//(C) by Michael Peter Christen; mc@yacy.net
//first published on http://www.anomic.de
//Frankfurt, Germany, 2005
//
// $LastChangedDate$
// $LastChangedRevision$
// $LastChangedBy$
//
//This program is free software; you can redistribute it and/or modify
//it under the terms of the GNU General Public License as published by
//the Free Software Foundation; either version 2 of the License, or
//(at your option) any later version.
//
//This program is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//GNU General Public License for more details.
//
//You should have received a copy of the GNU General Public License
//along with this program; if not, write to the Free Software
//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package net.yacy.document;
import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.TreeSet;
import net.yacy.cora.date.ISO8601Formatter;
import net.yacy.cora.document.MultiProtocolURI;
import net.yacy.cora.document.UTF8;
import net.yacy.document.parser.html.ContentScraper;
import net.yacy.document.parser.html.ImageEntry;
import net.yacy.kelondro.logging.Log;
import net.yacy.kelondro.util.ByteBuffer;
import net.yacy.kelondro.util.FileUtils;
public class Document {
private final MultiProtocolURI source; // the source url
private final String mimeType; // mimeType as taken from http header
private final String charset; // the charset of the document
private final List<String> keywords; // most resources provide a keyword field
private StringBuilder title; // a document title, taken from title or h1 tag; shall appear as headline of search result
private final StringBuilder creator; // author or copyright
private final String publisher; // publisher
private final List<String> sections; // if present: more titles/headlines appearing in the document
private final StringBuilder description; // an abstract, if present: short content description
private Object text; // the clear text, all that is visible
private final Map<MultiProtocolURI, Properties> anchors; // all links embedded as clickeable entities (anchor tags)
private final Map<MultiProtocolURI, String> rss; // all embedded rss feeds
private final Map<MultiProtocolURI, ImageEntry> images; // all visible pictures in document
// the anchors and images - Maps are URL-to-EntityDescription mappings.
// The EntityDescription appear either as visible text in anchors or as alternative
// text in image tags.
private Map<MultiProtocolURI, String> hyperlinks, audiolinks, videolinks, applinks, inboundlinks, outboundlinks;
private Map<String, String> emaillinks;
private MultiProtocolURI favicon;
private boolean resorted;
private final Set<String> languages;
private final boolean indexingDenied;
private final float lon, lat;
private final Object parserObject; // the source object that was used to create the Document
public Document(final MultiProtocolURI location, final String mimeType, final String charset,
final Object parserObject,
final Set<String> languages,
final String[] keywords, final String title, final String author, final String publisher,
final String[] sections, final String abstrct,
final float lon, final float lat,
final Object text,
final Map<MultiProtocolURI, Properties> anchors,
final Map<MultiProtocolURI, String> rss,
final Map<MultiProtocolURI, ImageEntry> images,
final boolean indexingDenied) {
this.source = location;
this.mimeType = (mimeType == null) ? "application/octet-stream" : mimeType;
this.charset = charset;
this.parserObject = parserObject;
this.keywords = (keywords == null) ? new LinkedList<String>() : Arrays.asList(keywords);
this.title = (title == null) ? new StringBuilder(0) : new StringBuilder(title);
this.creator = (author == null) ? new StringBuilder(0) : new StringBuilder(author);
this.sections = (sections == null) ? new LinkedList<String>() : Arrays.asList(sections);
this.description = (abstrct == null) ? new StringBuilder(0) : new StringBuilder(abstrct);
this.lon = lon;
this.lat = lat;
this.anchors = (anchors == null) ? new HashMap<MultiProtocolURI, Properties>(0) : anchors;
this.rss = (rss == null) ? new HashMap<MultiProtocolURI, String>(0) : rss;
this.images = (images == null) ? new HashMap<MultiProtocolURI, ImageEntry>() : images;
this.publisher = publisher;
this.hyperlinks = null;
this.audiolinks = null;
this.videolinks = null;
this.applinks = null;
this.emaillinks = null;
this.resorted = false;
this.inboundlinks = null;
this.outboundlinks = null;
this.languages = languages;
this.indexingDenied = indexingDenied;
this.text = text == null ? new ByteArrayOutputStream() : text;
}
public Object getParserObject() {
return this.parserObject;
}
public Set<String> getContentLanguages() {
return this.languages;
}
public String getFileExtension() {
return this.source.getFileExtension();
}
/**
* compute a set of languages that this document contains
* the language is not computed using a statistical analysis of the content, only from given metadata that came with the document
* if there are several languages defined in the document, the TLD is taken to check which one should be picked
* If there is no metadata at all, null is returned
* @return a string with a language name using the alpha-2 code of ISO 639
*/
public String dc_language() {
if (this.languages == null) return null;
if (this.languages.isEmpty()) return null;
if (this.languages.size() == 1) return this.languages.iterator().next();
if (this.languages.contains(this.source.language())) return this.source.language();
// now we are confused: the declared languages differ all from the TLD
// just pick one of the languages that we have
return this.languages.iterator().next();
}
/*
DC according to rfc 5013
* dc_title
* dc_creator
* dc_subject
* dc_description
* dc_publisher
dc_contributor
dc_date
dc_type
* dc_format
* dc_identifier
* dc_source
dc_language
dc_relation
dc_coverage
dc_rights
*/
public String dc_title() {
return (this.title == null) ? "" : this.title.toString();
}
public void setTitle(final String title) {
this.title = new StringBuilder(title);
}
public String dc_creator() {
return (this.creator == null) ? "" : this.creator.toString();
}
public String[] dc_subject() {
// sort out doubles and empty words
final TreeSet<String> hs = new TreeSet<String>();
String s;
for (int i = 0; i < this.keywords.size(); i++) {
if (this.keywords.get(i) == null) continue;
s = (this.keywords.get(i)).trim();
if (s.length() > 0) hs.add(s.toLowerCase());
}
final String[] t = new String[hs.size()];
int i = 0;
for (final String u: hs) t[i++] = u;
return t;
}
public String dc_subject(final char separator) {
final String[] t = dc_subject();
if (t.length == 0) return "";
// generate a new list
final StringBuilder sb = new StringBuilder(t.length * 8);
for (final String s: t) sb.append(s).append(separator);
return sb.substring(0, sb.length() - 1);
}
public String dc_description() {
if (this.description == null)
return dc_title();
return this.description.toString();
}
public String dc_publisher() {
return this.publisher == null ? "" : this.publisher;
}
public String dc_format() {
return this.mimeType;
}
public String dc_identifier() {
return this.source.toNormalform(true, false);
}
public MultiProtocolURI dc_source() {
return this.source;
}
/**
* @return the supposed charset of this document or <code>null</code> if unknown
*/
public String getCharset() {
return this.charset;
}
public String[] getSectionTitles() {
if (this.sections == null) {
return new String[] { dc_title() };
}
return this.sections.toArray(new String[this.sections.size()]);
}
public InputStream getText() {
try {
if (this.text == null) return new ByteArrayInputStream(UTF8.getBytes(""));
if (this.text instanceof String) {
//return new StreamReader((String) this.text);
return new ByteArrayInputStream(UTF8.getBytes(((String) this.text)));
} else if (this.text instanceof InputStream) {
return (InputStream) this.text;
} else if (this.text instanceof File) {
return new BufferedInputStream(new FileInputStream((File)this.text));
} else if (this.text instanceof byte[]) {
return new ByteArrayInputStream((byte[]) this.text);
} else if (this.text instanceof ByteArrayOutputStream) {
return new ByteArrayInputStream(((ByteArrayOutputStream) this.text).toByteArray());
}
assert false : this.text.getClass().toString();
return null;
} catch (final Exception e) {
Log.logException(e);
}
return new ByteArrayInputStream(UTF8.getBytes(""));
}
public byte[] getTextBytes() {
try {
if (this.text == null) return new byte[0];
if (this.text instanceof String) {
return UTF8.getBytes((String) this.text);
} else if (this.text instanceof InputStream) {
return FileUtils.read((InputStream) this.text);
} else if (this.text instanceof File) {
return FileUtils.read((File) this.text);
} else if (this.text instanceof byte[]) {
return (byte[]) this.text;
} else if (this.text instanceof ByteArrayOutputStream) {
return ((ByteArrayOutputStream) this.text).toByteArray();
}
assert false : this.text.getClass().toString();
return null;
} catch (final Exception e) {
Log.logException(e);
}
return new byte[0];
}
public long getTextLength() {
try {
if (this.text == null) return -1;
if (this.text instanceof String) {
return ((String) this.text).length();
} else if (this.text instanceof InputStream) {
return ((InputStream) this.text).available();
} else if (this.text instanceof File) {
return ((File) this.text).length();
} else if (this.text instanceof byte[]) {
return ((byte[]) this.text).length;
} else if (this.text instanceof ByteArrayOutputStream) {
return ((ByteArrayOutputStream) this.text).size();
}
assert false : this.text.getClass().toString();
return -1;
} catch (final Exception e) {
Log.logException(e);
}
return -1;
}
public List<StringBuilder> getSentences(final boolean pre) {
return getSentences(pre, getText());
}
public static List<StringBuilder> getSentences(final boolean pre, final InputStream text) {
if (text == null) return null;
final SentenceReader e = new SentenceReader(text);
e.pre(pre);
final List<StringBuilder> sentences = new ArrayList<StringBuilder>();
while (e.hasNext()) {
sentences.add(e.next());
}
return sentences;
}
public List<String> getKeywords() {
return this.keywords;
}
public Map<MultiProtocolURI, Properties> getAnchors() {
// returns all links embedded as anchors (clickeable entities)
// this is a url(String)/text(String) map
return this.anchors;
}
public Map<MultiProtocolURI, String> getRSS() {
// returns all links embedded as anchors (clickeable entities)
// this is a url(String)/text(String) map
return this.rss;
}
// the next three methods provide a calculated view on the getAnchors/getImages:
public Map<MultiProtocolURI, String> getHyperlinks() {
// this is a subset of the getAnchor-set: only links to other hyperrefs
if (!this.resorted) resortLinks();
return this.hyperlinks;
}
public Map<MultiProtocolURI, String> getAudiolinks() {
if (!this.resorted) resortLinks();
return this.audiolinks;
}
public Map<MultiProtocolURI, String> getVideolinks() {
if (!this.resorted) resortLinks();
return this.videolinks;
}
public Map<MultiProtocolURI, ImageEntry> getImages() {
// returns all links enbedded as pictures (visible in document)
// this resturns a htmlFilterImageEntry collection
if (!this.resorted) resortLinks();
return this.images;
}
public Map<MultiProtocolURI, String> getApplinks() {
if (!this.resorted) resortLinks();
return this.applinks;
}
public Map<String, String> getEmaillinks() {
// this is part of the getAnchor-set: only links to email addresses
if (!this.resorted) resortLinks();
return this.emaillinks;
}
public float lon() {
return this.lon;
}
public float lat() {
return this.lat;
}
private void resortLinks() {
if (this.resorted) return;
synchronized (this) {
if (this.resorted) return;
// extract hyperlinks, medialinks and emaillinks from anchorlinks
MultiProtocolURI url;
String u;
int extpos, qpos;
String ext = null;
final String thishost = this.source.getHost();
this.inboundlinks = new HashMap<MultiProtocolURI, String>();
this.outboundlinks = new HashMap<MultiProtocolURI, String>();
this.hyperlinks = new HashMap<MultiProtocolURI, String>();
this.videolinks = new HashMap<MultiProtocolURI, String>();
this.audiolinks = new HashMap<MultiProtocolURI, String>();
this.applinks = new HashMap<MultiProtocolURI, String>();
this.emaillinks = new HashMap<String, String>();
final Map<MultiProtocolURI, ImageEntry> collectedImages = new HashMap<MultiProtocolURI, ImageEntry>(); // this is a set that is collected now and joined later to the imagelinks
for (final Map.Entry<MultiProtocolURI, ImageEntry> entry: collectedImages.entrySet()) {
if (entry.getKey().getHost().equals(thishost)) this.inboundlinks.put(entry.getKey(), "image"); else this.outboundlinks.put(entry.getKey(), "image");
}
for (final Map.Entry<MultiProtocolURI, Properties> entry: this.anchors.entrySet()) {
url = entry.getKey();
if (url == null) continue;
final boolean noindex = entry.getValue().getProperty("rel", "").toLowerCase().indexOf("noindex",0) >= 0;
final boolean nofollow = entry.getValue().getProperty("rel", "").toLowerCase().indexOf("nofollow",0) >= 0;
if ((thishost == null && url.getHost() == null) ||
((thishost != null && url.getHost() != null) &&
(url.getHost().endsWith(thishost) ||
(thishost.startsWith("www.") && url.getHost().endsWith(thishost.substring(4)))))) {
this.inboundlinks.put(url, "anchor" + (noindex ? " noindex" : "") + (nofollow ? " nofollow" : ""));
} else {
this.outboundlinks.put(url, "anchor" + (noindex ? " noindex" : "") + (nofollow ? " nofollow" : ""));
}
u = url.toNormalform(true, false);
final String name = entry.getValue().getProperty("name", "");
if (u.startsWith("mailto:")) {
this.emaillinks.put(u.substring(7), name);
} else {
extpos = u.lastIndexOf('.');
if (extpos > 0) {
if (((qpos = u.indexOf('?')) >= 0) && (qpos > extpos)) {
ext = u.substring(extpos + 1, qpos).toLowerCase();
} else {
ext = u.substring(extpos + 1).toLowerCase();
}
if (Classification.isMediaExtension(ext)) {
// this is not a normal anchor, its a media link
if (Classification.isImageExtension(ext)) {
ContentScraper.addImage(collectedImages, new ImageEntry(url, name, -1, -1, -1));
}
else if (Classification.isAudioExtension(ext)) this.audiolinks.put(url, name);
else if (Classification.isVideoExtension(ext)) this.videolinks.put(url, name);
else if (Classification.isApplicationExtension(ext)) this.applinks.put(url, name);
}
}
// in any case we consider this as a link and let the parser decide if that link can be followed
this.hyperlinks.put(url, name);
}
}
// add image links that we collected from the anchors to the image map
ContentScraper.addAllImages(this.images, collectedImages);
// expand the hyperlinks:
// we add artificial hyperlinks to the hyperlink set
// that can be calculated from given hyperlinks and imagelinks
this.hyperlinks.putAll(allReflinks(this.images.values()));
this.hyperlinks.putAll(allReflinks(this.audiolinks.keySet()));
this.hyperlinks.putAll(allReflinks(this.videolinks.keySet()));
this.hyperlinks.putAll(allReflinks(this.applinks.keySet()));
/*
hyperlinks.putAll(allSubpaths(hyperlinks.keySet()));
hyperlinks.putAll(allSubpaths(images.values()));
hyperlinks.putAll(allSubpaths(audiolinks.keySet()));
hyperlinks.putAll(allSubpaths(videolinks.keySet()));
hyperlinks.putAll(allSubpaths(applinks.keySet()));
*/
// don't do this again
this.resorted = true;
}
}
public static Map<MultiProtocolURI, String> allSubpaths(final Collection<?> links) {
// links is either a Set of Strings (urls) or a Set of
// htmlFilterImageEntries
final Set<String> h = new HashSet<String>();
Iterator<?> i = links.iterator();
Object o;
MultiProtocolURI url;
String u;
int pos;
int l;
while (i.hasNext())
try {
o = i.next();
if (o instanceof MultiProtocolURI) url = (MultiProtocolURI) o;
else if (o instanceof String) url = new MultiProtocolURI((String) o);
else if (o instanceof ImageEntry) url = ((ImageEntry) o).url();
else {
assert false;
continue;
}
u = url.toNormalform(true, true);
if (u.endsWith("/"))
u = u.substring(0, u.length() - 1);
pos = u.lastIndexOf('/');
while (pos > 8) {
l = u.length();
u = u.substring(0, pos + 1);
h.add(u);
u = u.substring(0, pos);
assert (u.length() < l) : "u = " + u;
pos = u.lastIndexOf('/');
}
} catch (final MalformedURLException e) { }
// now convert the strings to yacyURLs
i = h.iterator();
final Map<MultiProtocolURI, String> v = new HashMap<MultiProtocolURI, String>();
while (i.hasNext()) {
u = (String) i.next();
try {
url = new MultiProtocolURI(u);
v.put(url, "sub");
} catch (final MalformedURLException e) {
}
}
return v;
}
public static Map<MultiProtocolURI, String> allReflinks(final Collection<?> links) {
// links is either a Set of Strings (with urls) or
// htmlFilterImageEntries
// we find all links that are part of a reference inside a url
final Map<MultiProtocolURI, String> v = new HashMap<MultiProtocolURI, String>();
final Iterator<?> i = links.iterator();
Object o;
MultiProtocolURI url = null;
String u;
int pos;
loop: while (i.hasNext())
try {
o = i.next();
if (o instanceof MultiProtocolURI)
url = (MultiProtocolURI) o;
else if (o instanceof String)
url = new MultiProtocolURI((String) o);
else if (o instanceof ImageEntry)
url = ((ImageEntry) o).url();
else {
assert false;
continue loop;
}
if (url == null) continue loop;
u = url.toNormalform(true, true);
if ((pos = u.toLowerCase().indexOf("http://", 7)) > 0) {
i.remove();
u = u.substring(pos);
while ((pos = u.toLowerCase().indexOf("http://", 7)) > 0)
u = u.substring(pos);
url = new MultiProtocolURI(u);
if (!(v.containsKey(url)))
v.put(url, "ref");
continue loop;
}
if ((pos = u.toLowerCase().indexOf("/www.", 7)) > 0) {
i.remove();
u = "http:/" + u.substring(pos);
while ((pos = u.toLowerCase().indexOf("/www.", 7)) > 0)
u = "http:/" + u.substring(pos);
url = new MultiProtocolURI(u);
if (!(v.containsKey(url)))
v.put(url, "ref");
continue loop;
}
} catch (final MalformedURLException e) {
}
return v;
}
public void addSubDocuments(final Document[] docs) throws IOException {
for (final Document doc: docs) {
this.sections.addAll(Arrays.asList(doc.getSectionTitles()));
if (this.title.length() > 0) this.title.append('\n');
this.title.append(doc.dc_title());
this.keywords.addAll(doc.getKeywords());
if (this.description.length() > 0) this.description.append('\n');
this.description.append(doc.dc_description());
if (!(this.text instanceof ByteArrayOutputStream)) {
this.text = new ByteArrayOutputStream();
}
FileUtils.copy(doc.getText(), (ByteArrayOutputStream) this.text);
this.anchors.putAll(doc.getAnchors());
this.rss.putAll(doc.getRSS());
ContentScraper.addAllImages(this.images, doc.getImages());
}
}
/**
* @return the {@link URL} to the favicon that belongs to the document
*/
public MultiProtocolURI getFavicon() {
return this.favicon;
}
/**
* @param faviconURL the {@link URL} to the favicon that belongs to the document
*/
public void setFavicon(final MultiProtocolURI faviconURL) {
this.favicon = faviconURL;
}
public int inboundLinkCount() {
if (this.inboundlinks == null) resortLinks();
return (this.inboundlinks == null) ? 0 : this.inboundlinks.size();
}
public int outboundLinkCount() {
if (this.outboundlinks == null) resortLinks();
return (this.outboundlinks == null) ? 0 : this.outboundlinks.size();
}
public int inboundLinkNoindexCount() {
if (this.inboundlinks == null) resortLinks();
if (this.inboundlinks == null) return 0;
int c = 0;
for (final String tag: this.inboundlinks.values()) {
if (tag.contains("noindex")) c++;
}
return c;
}
public int outboundLinkNoindexCount() {
if (this.outboundlinks == null) resortLinks();
if (this.outboundlinks == null) return 0;
int c = 0;
for (final String tag: this.outboundlinks.values()) {
if (tag.contains("noindex")) c++;
}
return c;
}
public Set<MultiProtocolURI> inboundLinks() {
if (this.inboundlinks == null) resortLinks();
return (this.inboundlinks == null) ? null : this.inboundlinks.keySet();
}
public Set<MultiProtocolURI> outboundLinks() {
if (this.outboundlinks == null) resortLinks();
return (this.outboundlinks == null) ? null : this.outboundlinks.keySet();
}
public boolean indexingDenied() {
return this.indexingDenied;
}
public void writeXML(final Writer os, final Date date) throws IOException {
os.write("<record>\n");
final String title = dc_title();
if (title != null && title.length() > 0) os.write("<dc:title><![CDATA[" + title + "]]></dc:title>\n");
os.write("<dc:identifier>" + dc_identifier() + "</dc:identifier>\n");
final String creator = dc_creator();
if (creator != null && creator.length() > 0) os.write("<dc:creator><![CDATA[" + creator + "]]></dc:creator>\n");
final String publisher = dc_publisher();
if (publisher != null && publisher.length() > 0) os.write("<dc:publisher><![CDATA[" + publisher + "]]></dc:publisher>\n");
final String subject = this.dc_subject(';');
if (subject != null && subject.length() > 0) os.write("<dc:subject><![CDATA[" + subject + "]]></dc:subject>\n");
if (this.text != null) {
os.write("<dc:description><![CDATA[");
final byte[] buffer = new byte[1000];
int c = 0;
final InputStream is = getText();
while ((c = is.read(buffer)) > 0) os.write(UTF8.String(buffer, 0, c));
is.close();
os.write("]]></dc:description>\n");
}
final String language = dc_language();
if (language != null && language.length() > 0) os.write("<dc:language>" + dc_language() + "</dc:language>\n");
os.write("<dc:date>" + ISO8601Formatter.FORMATTER.format(date) + "</dc:date>\n");
if (this.lon != 0.0f && this.lat != 0.0f) os.write("<geo:Point><geo:long>" + this.lon +"</geo:long><geo:lat>" + this.lat + "</geo:lat></geo:Point>\n");
os.write("</record>\n");
}
@Override
public String toString() {
final ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
final Writer osw = new OutputStreamWriter(baos, "UTF-8");
writeXML(osw, new Date());
osw.close();
return UTF8.String(baos.toByteArray());
} catch (final UnsupportedEncodingException e1) {
return "";
} catch (final IOException e) {
return "";
}
}
public void close() {
if (this.text == null) return;
// try close the output stream
if (this.text instanceof InputStream) try {
((InputStream) this.text).close();
} catch (final Exception e) {} finally {
this.text = null;
}
// delete the temp file
if (this.text instanceof File) try {
FileUtils.deletedelete((File) this.text);
} catch (final Exception e) {} finally {
this.text = null;
}
}
/**
* merge documents: a helper method for all parsers that return multiple documents
* @param docs
* @return
*/
public static Document mergeDocuments(final MultiProtocolURI location,
final String globalMime, final Document[] docs)
{
if (docs == null || docs.length == 0) return null;
if (docs.length == 1) return docs[0];
long docTextLength = 0;
final ByteBuffer content = new ByteBuffer();
final StringBuilder authors = new StringBuilder(80);
final StringBuilder publishers = new StringBuilder(80);
final StringBuilder subjects = new StringBuilder(80);
final StringBuilder title = new StringBuilder(80);
final StringBuilder description = new StringBuilder(80);
final LinkedList<String> sectionTitles = new LinkedList<String>();
final Map<MultiProtocolURI, Properties> anchors = new HashMap<MultiProtocolURI, Properties>();
final Map<MultiProtocolURI, String> rss = new HashMap<MultiProtocolURI, String>();
final Map<MultiProtocolURI, ImageEntry> images = new HashMap<MultiProtocolURI, ImageEntry>();
float lon = 0.0f, lat = 0.0f;
for (final Document doc: docs) {
final String author = doc.dc_creator();
if (author.length() > 0) {
if (authors.length() > 0) authors.append(",");
subjects.append(author);
}
final String publisher = doc.dc_publisher();
if (publisher.length() > 0) {
if (publishers.length() > 0) publishers.append(",");
publishers.append(publisher);
}
final String subject = doc.dc_subject(',');
if (subject.length() > 0) {
if (subjects.length() > 0) subjects.append(",");
subjects.append(subject);
}
if (title.length() > 0) title.append("\n");
title.append(doc.dc_title());
sectionTitles.addAll(Arrays.asList(doc.getSectionTitles()));
if (description.length() > 0) description.append("\n");
description.append(doc.dc_description());
if (doc.getTextLength() > 0) {
if (docTextLength > 0) content.write('\n');
try {
docTextLength += FileUtils.copy(doc.getText(), content);
} catch (final IOException e) {
Log.logException(e);
}
}
anchors.putAll(doc.getAnchors());
rss.putAll(doc.getRSS());
ContentScraper.addAllImages(images, doc.getImages());
if (doc.lon() != 0.0f && doc.lat() != 0.0f) { lon = doc.lon(); lat = doc.lat(); }
}
return new Document(
location,
globalMime,
null,
null,
null,
subjects.toString().split(" |,"),
title.toString(),
authors.toString(),
publishers.toString(),
sectionTitles.toArray(new String[sectionTitles.size()]),
description.toString(),
lon, lat,
content.getBytes(),
anchors,
rss,
images,
false);
}
public static Map<MultiProtocolURI, String> getHyperlinks(final Document[] documents) {
final Map<MultiProtocolURI, String> result = new HashMap<MultiProtocolURI, String>();
for (final Document d: documents) {
result.putAll(d.getHyperlinks());
}
return result;
}
public static Map<MultiProtocolURI, String> getImagelinks(final Document[] documents) {
final Map<MultiProtocolURI, String> result = new HashMap<MultiProtocolURI, String>();
for (final Document d: documents) {
for (final ImageEntry imageReference : d.getImages().values()) {
result.put(imageReference.url(), imageReference.alt());
}
}
return result;
}
}