[DL-Learner SVN] SF.net SVN: dl-learner:[1878] trunk/src/dl-learner/org/dllearner

[<ku...@us...>]

Revision: 1878
          http://dl-learner.svn.sourceforge.net/dl-learner/?rev=1878&view=rev
Author:   kurzum
Date:     2009-10-05 10:20:13 +0000 (Mon, 05 Oct 2009)

Log Message:
-----------
fix for Invalid URIs cause the learn-Algorithm to break on Extraction - ID: 2872207
invalid Classes or values of Objectproperties are ignored, a warning is issued

Modified Paths:
--------------
    trunk/src/dl-learner/org/dllearner/Info.java
    trunk/src/dl-learner/org/dllearner/kb/extraction/InstanceNode.java
    trunk/src/dl-learner/org/dllearner/kb/extraction/Node.java

Modified: trunk/src/dl-learner/org/dllearner/Info.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/Info.java	2009-10-04 11:54:44 UTC (rev 1877)
+++ trunk/src/dl-learner/org/dllearner/Info.java	2009-10-05 10:20:13 UTC (rev 1878)
@@ -1,8 +1,8 @@
 
-	// File is updated automatically when a new version is created
-	package org.dllearner;
+// File is updated automatically when a new version is created
+package org.dllearner;
 
-	public class Info {
-		public static final String build = "2009-09-23";
-	}
-			
\ No newline at end of file
+public class Info {
+	public static final String build = "2009-09-30";
+}
+		
\ No newline at end of file

Modified: trunk/src/dl-learner/org/dllearner/kb/extraction/InstanceNode.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/kb/extraction/InstanceNode.java	2009-10-04 11:54:44 UTC (rev 1877)
+++ trunk/src/dl-learner/org/dllearner/kb/extraction/InstanceNode.java	2009-10-05 10:20:13 UTC (rev 1878)
@@ -19,6 +19,7 @@
  */
 package org.dllearner.kb.extraction;
 
+import java.net.URI;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.SortedSet;
@@ -82,11 +83,20 @@
 		return newNodes;
 	}
 	
+	/**
+	 * estimates the type of the retrieved tuple
+	 * @param tuple
+	 * @return
+	 */
 	public Node processTuple( RDFNodeTuple tuple) {
+		
 		try {
+			
+			//Literal nodes 
 			if(tuple.b.isLiteral()) {
 				datatypeProperties.add(new DatatypePropertyNode(tuple.a.toString(), this, new LiteralNode(tuple.b) ));
 				return null;
+			//Blank nodes 
 			}else if(tuple.b.isAnon()){
 				@SuppressWarnings("unused")
 				RDFBlankNode n = (RDFBlankNode) tuple.b;
@@ -101,11 +111,27 @@
 			
 			// basically : if p is rdf:type then o is a class
 			// else it is an instance
+			// Class Node 
 			}else if (tuple.a.toString().equals(OWLVocabulary.RDF_TYPE)) {
+				try{
+					URI.create(tuple.b.toString());
+				}catch (Exception e) {
+					logger.warn("uri "+tuple.b.toString()+" is not a valid uri for a class, ignoring");
+					return null;
+				}
+				
 				ClassNode tmp = new ClassNode(tuple.b.toString());
 				classes.add(tmp);
 				return tmp;
+			// instance node
 			} else {
+				
+				try{
+					URI.create(tuple.b.toString());
+				}catch (Exception e) {
+					logger.warn("uri "+tuple.b.toString()+" for objectproperty: "+tuple.a.toString() +" is not valid, ignoring");
+					return null;
+				}
 				InstanceNode tmp = new InstanceNode(tuple.b.toString());
 				objectProperties.add(new ObjectPropertyNode(tuple.a.toString(), this, tmp));
 				return tmp;

Modified: trunk/src/dl-learner/org/dllearner/kb/extraction/Node.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/kb/extraction/Node.java	2009-10-04 11:54:44 UTC (rev 1877)
+++ trunk/src/dl-learner/org/dllearner/kb/extraction/Node.java	2009-10-05 10:20:13 UTC (rev 1878)
@@ -95,6 +95,7 @@
 		return uri;
 	}
 	
+	
 	public URI getURI() {
 		return URI.create(uri);
 	}


This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.