mpdl-group: software/eXist/mpdl-modules/src/org/exist/xquery/modules/mpdltext/GetLemma.java annotate

author	Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
date	Wed, 24 Nov 2010 17:24:23 +0100
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children

rev	line source
0 408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	1 /*
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	2 * eXist Open Source Native XML Database: Extension module
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	3 * Copyright (C) 2008 Josef Willenborg
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	4 * jwillenborg@mpiwg-berlin.mpg.de
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	5 * http://www.mpiwg-berlin.mpg.de
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	6 *
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	7 * This program is free software; you can redistribute it and/or
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	8 * modify it under the terms of the GNU Lesser General Public License
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	9 * as published by the Free Software Foundation; either version 2
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	10 * of the License, or (at your option) any later version.
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	11 *
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	12 * This program is distributed in the hope that it will be useful,
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	15 * GNU Lesser General Public License for more details.
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	16 *
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	17 * You should have received a copy of the GNU Lesser General Public License
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	18 * along with this program; if not, write to the Free Software
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	20 *
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	21 * $Id: TextModule.java $
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	22 */
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	23 package org.exist.xquery.modules.mpdltext;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	24
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	25 import java.util.ArrayList;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	26
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	27 import org.exist.dom.QName;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	28 import org.exist.memtree.DocumentImpl;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	29 import org.exist.memtree.MemTreeBuilder;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	30 import org.exist.xquery.BasicFunction;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	31 import org.exist.xquery.Cardinality;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	32 import org.exist.xquery.FunctionSignature;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	33 import org.exist.xquery.XPathException;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	34 import org.exist.xquery.XQueryContext;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	35 import org.exist.xquery.value.Sequence;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	36 import org.exist.xquery.value.SequenceType;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	37 import org.exist.xquery.value.Type;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	38
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	39 import de.mpg.mpiwg.berlin.mpdl.exception.ApplicationException;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	40 import de.mpg.mpiwg.berlin.mpdl.lt.morph.app.Form;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	41 import de.mpg.mpiwg.berlin.mpdl.lt.morph.app.Lemma;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	42 import de.mpg.mpiwg.berlin.mpdl.lt.morph.app.MorphologyCache;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	43
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	44 /**
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	45 * @author Josef Willenborg (jwillenborg@mpiwg-berlin.mpg.de)
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	46 */
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	47 public class GetLemma extends BasicFunction {
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	48
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	49 public final static FunctionSignature signature =
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	50 new FunctionSignature(
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	51 new QName("get-lemma", MPDLTextModule.NAMESPACE_URI, MPDLTextModule.PREFIX),
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	52 "A function which delivers the lemma of a given lemma name and language " +
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	53 "by the MPDL language technology",
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	54 new SequenceType[] { new SequenceType(Type.STRING, Cardinality.ZERO_OR_MORE),
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	55 new SequenceType(Type.STRING, Cardinality.ZERO_OR_MORE) },
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	56 new SequenceType(Type.NODE, Cardinality.EXACTLY_ONE));
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	57
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	58 public GetLemma(XQueryContext context) {
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	59 super(context, signature);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	60 }
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	61
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	62 public Sequence eval(Sequence[] args, Sequence contextSequence) throws XPathException {
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	63 Sequence langSeq = args[0];
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	64 Sequence formNameSeq = args[1];
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	65 String language = "";
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	66 String formName = "";
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	67 if (langSeq.isEmpty() \|\| formNameSeq.isEmpty())
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	68 return Sequence.EMPTY_SEQUENCE;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	69 language = langSeq.getStringValue();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	70 formName = formNameSeq.getStringValue();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	71 ArrayList<Lemma> lemmas = null;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	72 try {
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	73 MorphologyCache morphologyCache = MorphologyCache.getInstance();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	74 Lemma lemma = morphologyCache.getLemma(language, formName, true);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	75 if (lemma == null) {
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	76 lemma = new Lemma("standard analyzer", language, formName); // delivers at least one lemma with one form (with the formName)
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	77 }
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	78 lemmas = new ArrayList<Lemma>();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	79 lemmas.add(lemma);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	80 } catch (ApplicationException e) {
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	81 throw new XPathException(e);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	82 }
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	83 DocumentImpl doc = null;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	84 if (lemmas != null) {
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	85 MemTreeBuilder builder = context.getDocumentBuilder();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	86 builder.startElement("", "lemmas", "lemmas", null);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	87 for (int i=0; i<lemmas.size(); i++) {
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	88 Lemma lemma = lemmas.get(i);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	89 builder.startElement("", "lemma", "lemma", null);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	90 builder.startElement("", "provider", "provider", null);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	91 builder.characters(lemma.getProvider());
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	92 builder.endElement();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	93 builder.startElement("", "language", "language", null);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	94 builder.characters(lemma.getLanguage());
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	95 builder.endElement();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	96 builder.startElement("", "lemma-name", "lemma-name", null);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	97 builder.characters(lemma.getLemmaName());
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	98 builder.endElement();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	99 ArrayList<Form> forms = lemma.getFormsList();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	100 builder.startElement("", "forms-size", "forms-size", null);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	101 builder.characters(String.valueOf(forms.size()));
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	102 builder.endElement();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	103 builder.startElement("", "forms", "forms", null);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	104 for (int j=0; j<forms.size(); j++) {
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	105 Form form = forms.get(j);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	106 builder.startElement("", "form", "form", null);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	107 builder.startElement("", "provider", "provider", null);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	108 builder.characters(form.getProvider());
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	109 builder.endElement();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	110 builder.startElement("", "language", "language", null);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	111 builder.characters(form.getLanguage());
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	112 builder.endElement();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	113 builder.startElement("", "form-name", "form-name", null);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	114 builder.characters(form.getFormName());
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	115 builder.endElement();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	116 builder.startElement("", "lemma-name", "lemma-name", null);
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	117 builder.characters(lemma.getLemmaName());
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	118 builder.endElement();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	119 builder.endElement();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	120 }
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	121 builder.endElement();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	122 builder.endElement();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	123 }
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	124 builder.endElement();
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	125 doc = ((DocumentImpl)builder.getDocument());
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	126 } else {
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	127 return Sequence.EMPTY_SEQUENCE;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	128 }
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	129 return doc;
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	130 }
408254cf2f1d Erstellung Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> parents: diff changeset	131 }

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408254cf2f1d Erstellung