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85 lines
3.0 KiB
85 lines
3.0 KiB
package net.yacy.document.parser.augment;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Set;
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import net.yacy.cora.util.ConcurrentLog;
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import net.yacy.data.ymark.YMarkUtil;
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import net.yacy.document.AbstractParser;
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import net.yacy.document.Document;
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import net.yacy.document.Parser;
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import net.yacy.document.parser.rdfa.impl.RDFaParser;
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import net.yacy.kelondro.data.meta.DigestURI;
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import net.yacy.search.Switchboard;
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public class AugmentParser extends AbstractParser implements Parser {
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RDFaParser rdfaParser;
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public AugmentParser() {
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super("AugmentParser");
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this.rdfaParser = new RDFaParser();
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ConcurrentLog.info("AugmentedParser", "augmented parser was initialized");
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this.SUPPORTED_EXTENSIONS.add("html");
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this.SUPPORTED_EXTENSIONS.add("htm");
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this.SUPPORTED_EXTENSIONS.add("xhtml");
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this.SUPPORTED_EXTENSIONS.add("php");
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this.SUPPORTED_MIME_TYPES.add("text/html");
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this.SUPPORTED_MIME_TYPES.add("text/xhtml+xml");
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}
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@Override
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public Document[] parse(DigestURI url, String mimeType, String charset, InputStream source) throws Parser.Failure, InterruptedException {
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Document[] htmlDocs = this.rdfaParser.parse(url, mimeType, charset, source);
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for (final Document doc : htmlDocs) {
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/* analyze(doc, url, mimeType, charset); // enrich document text */
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parseAndAugment(doc, url, mimeType, charset); // enrich document with additional tags
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}
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return htmlDocs;
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}
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/* TODO: not implemented yet
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*
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private void analyze(Document origDoc, DigestURI url,
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String mimeType, String charset) {
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// if the magic word appears in the document, perform extra actions.
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if (origDoc.getKeywords().contains("magicword")) {
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String all = "";
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all = "yacylatest";
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// TODO: append content of string all to origDoc.text, maybe use Document.mergeDocuments() to do so
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}
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}
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*/
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private void parseAndAugment(Document origDoc, DigestURI url, @SuppressWarnings("unused") String mimeType, @SuppressWarnings("unused") String charset) {
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Iterator<net.yacy.kelondro.blob.Tables.Row> it;
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try {
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it = Switchboard.getSwitchboard().tables.iterator("aggregatedtags");
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it = Switchboard.getSwitchboard().tables.orderBy(it, -1, "timestamp_creation").iterator();
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while (it.hasNext()) {
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net.yacy.kelondro.blob.Tables.Row r = it.next();
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if (r.get("url", "").equals(url.toNormalform(false))) {
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Set<String> tags = new HashSet<String>();
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for (String s : YMarkUtil.keysStringToSet(r.get("scitag", ""))) {
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tags.add(s);
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}
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origDoc.addTags(tags);
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}
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}
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} catch (final IOException e) {
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ConcurrentLog.logException(e);
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}
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}
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}
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