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[DL-Learner SVN] SF.net SVN: dl-learner:[3629] trunk/components-core/src/main/java/org
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From: <dc...@us...> - 2012-04-09 18:26:48
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Revision: 3629
http://dl-learner.svn.sourceforge.net/dl-learner/?rev=3629&view=rev
Author: dcherix
Date: 2012-04-09 18:26:42 +0000 (Mon, 09 Apr 2012)
Log Message:
-----------
Added Paths:
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trunk/components-core/src/main/java/org/nlp2rdf/
trunk/components-core/src/main/java/org/nlp2rdf/ontology/
trunk/components-core/src/main/java/org/nlp2rdf/ontology/ClassIndexer.java
Added: trunk/components-core/src/main/java/org/nlp2rdf/ontology/ClassIndexer.java
===================================================================
--- trunk/components-core/src/main/java/org/nlp2rdf/ontology/ClassIndexer.java (rev 0)
+++ trunk/components-core/src/main/java/org/nlp2rdf/ontology/ClassIndexer.java 2012-04-09 18:26:42 UTC (rev 3629)
@@ -0,0 +1,241 @@
+/***************************************************************************/
+/* Copyright (C) 2010-2011, Sebastian Hellmann */
+/* Note: If you need parts of NLP2RDF in another licence due to licence */
+/* incompatibility, please mail hel...@in... */
+/* */
+/* This file is part of NLP2RDF. */
+/* */
+/* NLP2RDF 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 3 of the License, or */
+/* (at your option) any later version. */
+/* */
+/* NLP2RDF 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, see <http://www.gnu.org/licenses/>. */
+/***************************************************************************/
+
+package org.nlp2rdf.ontology;
+
+import com.hp.hpl.jena.ontology.OntClass;
+import com.hp.hpl.jena.ontology.OntModel;
+import com.hp.hpl.jena.ontology.OntModelSpec;
+import com.hp.hpl.jena.rdf.model.ModelFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.*;
+
+
+/**
+ * Indexes an Ontology
+ * skips complex classes per default, this does not affect the hierarchy outcome
+ */
+public class ClassIndexer {
+ private static Logger log = LoggerFactory.getLogger(ClassIndexer.class);
+
+ //Options
+ private boolean copyLabels = true;
+ private boolean copyComments = true;
+ private String language = null;
+
+ //Not implemented
+ private Map<String, String> transform = new HashMap<String, String>();
+ //Not implemented
+ private Set<String> remove = new HashSet<String>();
+
+ //internal variables
+ private Map<String, OntModel> classUriToClassHierarchy = new HashMap<String, OntModel>();
+
+ public ClassIndexer() {
+ }
+
+ public void index(OntModel from) {
+ Set<OntClass> classes = from.listClasses().toSet();
+ int i = 0;
+ for (OntClass cl : classes) {
+ Tree t = new Tree(cl);
+ classUriToClassHierarchy.put(cl.getURI(), t.toModel());
+ }
+
+ }
+
+ /**
+ * @param classUri
+ * @return a filled OntModel with all superclasses of classUri or null, if no class is found
+ */
+ public OntModel getHierarchyForClassURI(String classUri) {
+ return classUriToClassHierarchy.get(classUri);
+ }
+
+ /**
+ * transforms namespaces
+ *
+ * @param in
+ * @return
+ */
+ private String transformNamespace(String in) {
+ String ret = in;
+ for (String s : transform.keySet()) {
+ if (in.startsWith(s)) {
+ return in.replace(s, transform.get(s));
+
+ }
+ }
+ return ret;
+ }
+
+ /**
+ * filters out certain namespaces
+ *
+ * @param s
+ * @return
+ */
+ private boolean filterNamespace(String s) {
+ for (String prefix : remove) {
+ if (s.startsWith(prefix)) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+
+ public boolean isCopyLabels() {
+ return copyLabels;
+ }
+
+ public void setCopyLabels(boolean copyLabels) {
+ this.copyLabels = copyLabels;
+ }
+
+ public boolean isCopyComments() {
+ return copyComments;
+ }
+
+ public void setCopyComments(boolean copyComments) {
+ this.copyComments = copyComments;
+ }
+
+ public String getLanguage() {
+ return language;
+ }
+
+ public void setLanguage(String language) {
+ this.language = language;
+ }
+
+ /**
+ * A simple Helper Class to convert the hierarchy
+ */
+ private class Tree {
+ final String uri;
+ List<Tree> parents;
+ final String label;
+ final String comment;
+
+ public Tree(OntClass me) {
+ this.uri = me.getURI();
+ label = me.getLabel(language);
+ comment = me.getComment(language);
+ parents = new ArrayList<Tree>();
+
+ Set<OntClass> superClasses = me.listSuperClasses(true).toSet();
+ for (OntClass s : superClasses) {
+ //this is were complex classes are skipped
+ if (s.isAnon()) {
+ continue;
+ }
+ log.trace(s.toString());
+ parents.add(new Tree(s));
+ }
+ }
+
+ public OntModel toModel() {
+ OntModel model = ModelFactory.createOntologyModel(OntModelSpec.OWL_DL_MEM, ModelFactory.createDefaultModel());
+ OntClass me = model.createClass(uri);
+ //TODO test this for <&>
+ if (copyLabels && label != null) {
+ me.addLabel(label, language);
+ }
+ if (copyComments && comment != null) {
+ me.addComment(comment, language);
+ }
+ for (Tree p : parents) {
+ OntClass superClass = model.createClass(p.uri);
+ me.addSuperClass(superClass);
+ model.add(p.toModel());
+ }
+ return model;
+ }
+ }
+
+}
+
+/**
+ public void expandSuperAndCopy(String originalClassUri) {
+
+ String newClassUri = transform(originalClassUri);
+ if (isRemove(originalClassUri) || isRemove(newClassUri)) {
+ return;
+ }
+
+
+ // create initial classes
+ OntClass toClass = toModel.createClass(newClassUri);
+ OntClass fromClass = fromModel.getOntClass(originalClassUri);
+
+ if(toClass==null || fromClass == null){
+ logger.error("null occured in fromClass "+originalClassUri+" but retrieving yielded: "+fromClass );
+ return;
+ }
+
+ //System.out.println("begin");
+ //for(OntClass cltest: fromModel.listClasses().toSet()){
+ // System.out.println(cltest.getURI());
+ // System.out.println(cltest.getClass().getSimpleName());
+ //}
+ //System.out.println("end");
+
+ if (copyLabelsAndComments ) {
+ String tmp = null;
+
+ if((tmp=fromClass.getLabel(null))!=null) {toClass.setLabel(tmp, null);}
+ // System.out.println(fromClass.getURI()+"has label "+tmp);
+
+ if((tmp=fromClass.getComment(null))!=null) {toClass.setComment(tmp, null);}
+ // System.out.println(fromClass.getURI()+"has comment "+tmp);
+ }
+
+ // get the superclasses
+ Set<OntClass> fromSuperclasses = fromClass.listSuperClasses(true).toSet();
+
+ for (OntClass fromSuperclass : fromSuperclasses) {
+ String newFromSuperclassUri = transform(fromSuperclass.getURI());
+ if (isRemove(fromSuperclass.getURI()) || isRemove(newFromSuperclassUri)) {
+ continue;
+ }
+ if(fromSuperclass.isAnon()){
+ continue;
+ }
+
+ OntClass toSuperclass = toModel.createClass(newFromSuperclassUri);
+ toClass.addSuperClass(toSuperclass);
+
+ if (copyLabelsAndComments) {
+ String tmp = null;
+ if((tmp=fromSuperclass.getLabel(null))!=null) {toSuperclass.setLabel(tmp, null);}
+ // System.out.println(fromSuperclass.getURI()+"has label "+tmp);
+
+ if((tmp=fromSuperclass.getComment(null))!=null) {toSuperclass.setComment(tmp, null);}
+ // System.out.println(fromSuperclass.getURI()+"has comment "+tmp);
+ }
+ // System.out.println(fromSuperclass);
+ expandSuperAndCopy(fromSuperclass.getURI());
+ }
+
+ } **/
\ No newline at end of file
Property changes on: trunk/components-core/src/main/java/org/nlp2rdf/ontology/ClassIndexer.java
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Added: svn:mime-type
+ text/plain
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