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[DL-Learner SVN] SF.net SVN: dl-learner: [131] trunk/src/dl-learner/org/dllearner/modules/ sparql
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From: <ku...@us...> - 2007-09-05 11:34:29
|
Revision: 131
http://dl-learner.svn.sourceforge.net/dl-learner/?rev=131&view=rev
Author: kurzum
Date: 2007-09-05 04:34:25 -0700 (Wed, 05 Sep 2007)
Log Message:
-----------
updated all comments for javadoc
Modified Paths:
--------------
trunk/src/dl-learner/org/dllearner/modules/sparql/Cache.java
trunk/src/dl-learner/org/dllearner/modules/sparql/OntologyCollector.java
trunk/src/dl-learner/org/dllearner/modules/sparql/PartialOntology.java
trunk/src/dl-learner/org/dllearner/modules/sparql/QueryMaker.java
trunk/src/dl-learner/org/dllearner/modules/sparql/SimpleHTTPRequest.java
trunk/src/dl-learner/org/dllearner/modules/sparql/SparqlFilter.java
trunk/src/dl-learner/org/dllearner/modules/sparql/SparqlModule.java
trunk/src/dl-learner/org/dllearner/modules/sparql/Util.java
Modified: trunk/src/dl-learner/org/dllearner/modules/sparql/Cache.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/modules/sparql/Cache.java 2007-09-05 09:59:01 UTC (rev 130)
+++ trunk/src/dl-learner/org/dllearner/modules/sparql/Cache.java 2007-09-05 11:34:25 UTC (rev 131)
@@ -1,3 +1,22 @@
+/**
+ * Copyright (C) 2007, Sebastian Hellmann
+ *
+ * This file is part of DL-Learner.
+ *
+ * DL-Learner 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.
+ *
+ * DL-Learner 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.dllearner.modules.sparql;
import java.io.File;
@@ -7,11 +26,23 @@
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.net.URLEncoder;
-
+/**
+ *
+ * This is a primitive cache.
+ * The objects of this class can be either the cache itself or just on entry in the cache
+ *
+ * the cache remembers: a timestamp, the original sparql-query, the result
+ * key is the subject http://dbpedia.org/resource/Angela_Merkel which is first urlencoded
+ * and so serves as the hash for the filename.
+ * Cache validates if timestamp too old and Sparql-Query the same
+ * before returning the SPARQL xml-result
+ *
+ * @author Sebastian Hellmann
+ *
+ */
public class Cache implements Serializable{
- // Object can be the cache itself
- // or a cache object(one entry)
+
final static long serialVersionUID=104;
transient String basedir="";
transient String fileending=".cache";
@@ -21,7 +52,13 @@
long multiplier=24*60*60*1000;//h m s ms
String sparqlquery="";
- //constructor for the cache itself
+
+ /**
+ * Constructor for the cache itself.
+ * Called once at the beginning
+ *
+ * @param path Where the base path to the cache is
+ */
public Cache(String path){
this.basedir=path+File.separator;
if(!new File(path).exists())
@@ -29,14 +66,28 @@
}
-// constructor for single cache object(one entry)
- public Cache(String c, String sparql){
- this.content=c;
+//
+ /**
+ * Constructor for single cache object(one entry)
+ *
+ * @param content the sparql xml result
+ * @param sparql the sparql query
+ */
+ public Cache(String content, String sparql){
+ this.content=content;
this.sparqlquery=sparql;
this.timestamp=System.currentTimeMillis();
}
+
+ /**
+ * use only on the cache object describing the cache itself
+ *
+ * @param key the individual
+ * @param sparql the sparql query
+ * @return the cached sparql result or null
+ */
public String get(String key, String sparql){
//System.out.println("get From "+key);
String ret=null;
@@ -51,7 +102,16 @@
ret=c.content;
}catch (Exception e) {e.printStackTrace();}
return ret;
- };
+ }
+
+ /**
+ *
+ * constructor for single cache object(one entry)
+ *
+ * @param key the individual
+ * @param content the sparql result
+ * @param sparql the sparql query
+ */
public void put(String key, String content, String sparql){
//System.out.println("put into "+key);
Cache c=new Cache(content,sparql);
@@ -59,6 +119,12 @@
}
+ /**
+ * to normalize the filenames
+ *
+ * @param key
+ * @return
+ */
String makeFilename(String key){
String ret="";
try{
@@ -66,12 +132,24 @@
}catch (Exception e) {e.printStackTrace();}
return ret;
}
+
+ /**
+ * how old is the result
+ * @return
+ */
boolean checkFreshness(){
if((System.currentTimeMillis()-this.timestamp)<=(daysoffreshness*multiplier))
//fresh
return true;
else return false;
}
+
+
+ /**
+ * some sparql query
+ * @param sparql
+ * @return
+ */
boolean validate(String sparql){
if(this.sparqlquery.equals(sparql))
//valid
@@ -79,6 +157,10 @@
else return false;
}
+ /**
+ * makes a new file if none exists
+ * @param Filename
+ */
public void checkFile(String Filename){
if(!new File(Filename).exists()){
try{
@@ -89,6 +171,13 @@
}
+ /**
+ * internal saving function
+ * puts a cache object into a file
+ *
+ * @param Filename
+ * @param content
+ */
public void putIntoFile(String Filename,Cache content){
try{
//FileWriter fw=new FileWriter(new File(Filename),true);
@@ -100,6 +189,12 @@
}catch (Exception e) {System.out.println("Not in cache creating: "+Filename);}
}
+ /**
+ * internal retrieval function
+ *
+ * @param Filename
+ * @return one entry object
+ */
public Cache readFromFile(String Filename){
Cache content=null;
try{
Modified: trunk/src/dl-learner/org/dllearner/modules/sparql/OntologyCollector.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/modules/sparql/OntologyCollector.java 2007-09-05 09:59:01 UTC (rev 130)
+++ trunk/src/dl-learner/org/dllearner/modules/sparql/OntologyCollector.java 2007-09-05 11:34:25 UTC (rev 131)
@@ -1,3 +1,22 @@
+/**
+ * Copyright (C) 2007, Sebastian Hellmann
+ *
+ * This file is part of DL-Learner.
+ *
+ * DL-Learner 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.
+ *
+ * DL-Learner 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.dllearner.modules.sparql;
import java.net.InetAddress;
@@ -5,6 +24,14 @@
import java.util.HashSet;
import java.util.Iterator;
+/**
+ * This class collects the ontology from dbpedia,
+ * everything is saved in hashsets, so the doublettes are taken care of
+ *
+ *
+ * @author Sebastian Hellmann
+ *
+ */
public class OntologyCollector {
boolean print_flag=false;
@@ -20,6 +47,7 @@
HashSet<String> instances;
HashSet<String> triples;
+ // some namespaces
String subclass="http://www.w3.org/2000/01/rdf-schema#subClassOf";
String type="http://www.w3.org/1999/02/22-rdf-syntax-ns#type";
String objectProperty="http://www.w3.org/2002/07/owl#ObjectProperty";
@@ -35,6 +63,16 @@
"http://dbpedia.org/class/"}; //TODO FEHLER hier fehlt yago
+ /**
+ *
+ *
+ * @param subjectList
+ * @param numberOfRecursions
+ * @param filterMode
+ * @param FilterPredList
+ * @param FilterObjList
+ * @param defClasses
+ */
public OntologyCollector(String[] subjectList,int numberOfRecursions,
int filterMode, String[] FilterPredList,String[] FilterObjList,String[] defClasses){
this.subjectList=subjectList;
@@ -59,6 +97,12 @@
}catch (Exception e) {e.printStackTrace();}
}
+ /**
+ * first collects the ontology
+ * then types everything so it becomes owl-dl
+ *
+ * @return all triples in n-triple format
+ */
public String collectOntology(){
getRecursiveList(subjectList, numberOfRecursions);
finalize();
@@ -70,6 +114,11 @@
return ret;
}
+ /**
+ * calls getRecursive for each subject in list
+ * @param subjects
+ * @param NumberofRecursions
+ */
public void getRecursiveList(String[] subjects,int NumberofRecursions){
for (int i = 0; i < subjects.length; i++) {
getRecursive(subjects[i], NumberofRecursions);
@@ -78,6 +127,12 @@
}
+ /**
+ * gets all triples until numberofrecursion-- gets 0
+ *
+ * @param StartingSubject
+ * @param NumberofRecursions
+ */
public void getRecursive(String StartingSubject,int NumberofRecursions){
System.out.print("SparqlModul: Depth: "+NumberofRecursions+" @ "+StartingSubject+" ");
if(NumberofRecursions<=0)
@@ -90,8 +145,10 @@
String sparql=q.makeQueryFilter(StartingSubject,this.sf);
p(sparql);
p("*******************");
+ // checks cache
String FromCache=c.get(StartingSubject, sparql);
String xml;
+ // if not in cache get it from dbpedia
if(FromCache==null){
xml=s.sendAndReceive(ia, 8890, sparql);
c.put(StartingSubject, xml, sparql);
@@ -103,6 +160,7 @@
}
p(xml);
p("***********************");
+ // get new Subjects
String[] newSubjects=processResult(StartingSubject,xml);
for (int i = 0; (i < newSubjects.length)&& NumberofRecursions!=0; i++) {
@@ -114,6 +172,14 @@
}
+ /**
+ * process the sparql result xml in a simple manner
+ *
+ *
+ * @param subject
+ * @param xml
+ * @return list of new individuals
+ */
public String[] processResult(String subject,String xml){
//TODO if result is empty, catch exceptions
String one="<binding name=\"predicate\"><uri>";
@@ -131,12 +197,14 @@
xml=xml.substring(xml.indexOf(two)+two.length());
objtmp=xml.substring(0,xml.indexOf(end));
-
+ // writes the triples and resources in the hashsets
+ // also fills the arraylist al
processTriples(subject, predtmp, objtmp,al);
//System.out.println(al.size());
}
+ // convert al to list
Object[] o=al.toArray();
String[] ret=new String[o.length];
for (int i = 0; i < o.length; i++) {
@@ -146,7 +214,20 @@
//return (String[])al.toArray();
//System.out.println(xml);
}
- public void processTriples(String s,String p, String o,ArrayList<String> al){
+
+
+
+ /**
+ *
+ * writes the triples and resources in the hashsets
+ * also fills the arraylist al with new individals for further processing
+ * @param s
+ * @param p
+ * @param o
+ * @param al
+ */
+ public void processTriples(String s,String p, String o,ArrayList<String> al){
+ // the next two lines bump out some inconsistencies within dbpedia
String t="/Category";
if(s.equals(t) || o.equals(t))return ;
@@ -169,6 +250,7 @@
//save for further processing
al.add(o);
+ // type classes
if(isClass(o)){
classes.add(o);
if(isClass(s))p=subclass;
@@ -190,7 +272,15 @@
return;
}
-// also makes subclass property between classes
+//
+ /**
+ * also makes subclass property between classes
+ *
+ * @param s
+ * @param p
+ * @param o
+ * @return triple in the n triple notation
+ */
public String makeTriples(String s,String p, String o){
//s=replaceNamespace(s);
//p=replaceNamespace(p);
@@ -200,6 +290,12 @@
return ret;
}
+ /**
+ * decides if an object is treated as a class
+ *
+ * @param obj
+ * @return true if obj is in the defaultClassesList
+ */
public boolean isClass(String obj){
boolean retval=false;
@@ -209,7 +305,10 @@
return retval;
}
-
+
+ /**
+ * @see java.lang.Object#finalize()
+ */
@Override
public void finalize(){
typeProperties();
@@ -253,6 +352,10 @@
}
}
+ /**
+ * debug print turn on print_flag
+ * @param s
+ */
public void p(String s){
if(print_flag)
System.out.println(s);
Modified: trunk/src/dl-learner/org/dllearner/modules/sparql/PartialOntology.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/modules/sparql/PartialOntology.java 2007-09-05 09:59:01 UTC (rev 130)
+++ trunk/src/dl-learner/org/dllearner/modules/sparql/PartialOntology.java 2007-09-05 11:34:25 UTC (rev 131)
@@ -1,3 +1,22 @@
+/**
+ * Copyright (C) 2007, Sebastian Hellmann
+ *
+ * This file is part of DL-Learner.
+ *
+ * DL-Learner 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.
+ *
+ * DL-Learner 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.dllearner.modules.sparql;
import java.io.File;
@@ -17,6 +36,13 @@
import org.dllearner.modules.PreprocessingModule;
+/**
+ *
+ * old class, originally thought to extract just the owl-dl ontology from dbpedia
+ *
+ * @author Sebastian Hellmann
+ *
+ */
public class PartialOntology implements PreprocessingModule {
SimpleHTTPRequest s;
QueryMaker q;
Modified: trunk/src/dl-learner/org/dllearner/modules/sparql/QueryMaker.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/modules/sparql/QueryMaker.java 2007-09-05 09:59:01 UTC (rev 130)
+++ trunk/src/dl-learner/org/dllearner/modules/sparql/QueryMaker.java 2007-09-05 11:34:25 UTC (rev 131)
@@ -1,5 +1,31 @@
+/**
+ * Copyright (C) 2007, Sebastian Hellmann
+ *
+ * This file is part of DL-Learner.
+ *
+ * DL-Learner 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.
+ *
+ * DL-Learner 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.dllearner.modules.sparql;
+/**
+ *
+ * This class produces sparql queries
+ *
+ * @author Sebastian Hellmann
+ *
+ */
public class QueryMaker {
//Good
/*public static String owl ="http://www.w3.org/2002/07/owl#";
@@ -19,13 +45,14 @@
public static String sameAs="http://www.w3.org/2002/07/owl#sameAs";
public static String reference="http://dbpedia.org/property/reference";*/
-
-
int tempyago=0;
-
-
-
+ /**
+ * reads all the options and makes the sparql query accordingly
+ * @param subject
+ * @param sf special object encapsulating all options
+ * @return sparql query
+ */
public String makeQueryFilter(String subject, SparqlFilter sf){
@@ -75,9 +102,21 @@
return ret;
}*/
+ /**
+ * add a new object filter
+ * (objects are filtered out of sparql result)
+ * @param ns namespace
+ * @return
+ */
public String filterObject(String ns){
return "&&( !regex((?object), '"+ns+"') )";
}
+ /**
+ * add a new object filter
+ * (objects are filtered out of sparql result)
+ * @param ns namespace
+ * * @return
+ */
public String filterPredicate(String ns){
return "&&( !regex(str(?predicate), '"+ns+"') )";
}
Modified: trunk/src/dl-learner/org/dllearner/modules/sparql/SimpleHTTPRequest.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/modules/sparql/SimpleHTTPRequest.java 2007-09-05 09:59:01 UTC (rev 130)
+++ trunk/src/dl-learner/org/dllearner/modules/sparql/SimpleHTTPRequest.java 2007-09-05 11:34:25 UTC (rev 131)
@@ -1,3 +1,22 @@
+/**
+ * Copyright (C) 2007, Sebastian Hellmann
+ *
+ * This file is part of DL-Learner.
+ *
+ * DL-Learner 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.
+ *
+ * DL-Learner 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.dllearner.modules.sparql;
import java.io.BufferedInputStream;
@@ -9,6 +28,15 @@
+/**
+ *
+ * This class makes a simple http request
+ * the dbpedia url is hardcoded
+ *
+ * @author Sebastian Hellmann
+ *
+ *
+ */
public class SimpleHTTPRequest {
static final char value[]={13,10};
static final String cut=new String(value);
Modified: trunk/src/dl-learner/org/dllearner/modules/sparql/SparqlFilter.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/modules/sparql/SparqlFilter.java 2007-09-05 09:59:01 UTC (rev 130)
+++ trunk/src/dl-learner/org/dllearner/modules/sparql/SparqlFilter.java 2007-09-05 11:34:25 UTC (rev 131)
@@ -1,5 +1,33 @@
+/**
+ * Copyright (C) 2007, Sebastian Hellmann
+ *
+ * This file is part of DL-Learner.
+ *
+ * DL-Learner 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.
+ *
+ * DL-Learner 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.dllearner.modules.sparql;
+/**
+ *
+ *
+ * encapsulates all the options
+ * see the documentation for more help
+ *
+ * @author Sebastian Hellmann
+ *
+ */
public class SparqlFilter {
public int mode=0;
// 0 yago, 1 only cat, 2 skos+cat
@@ -63,7 +91,7 @@
ObjFilter=onlyCatObjFilterDefault;
PredFilter=onlyCatPredFilterDefault;
break;
- case 2:
+ case 2: // there are some other changes to, which are made directly in other functions
ObjFilter=skosObjFilterDefault;
PredFilter=skosPredFilterDefault;
break;
Modified: trunk/src/dl-learner/org/dllearner/modules/sparql/SparqlModule.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/modules/sparql/SparqlModule.java 2007-09-05 09:59:01 UTC (rev 130)
+++ trunk/src/dl-learner/org/dllearner/modules/sparql/SparqlModule.java 2007-09-05 11:34:25 UTC (rev 131)
@@ -1,3 +1,22 @@
+/**
+ * Copyright (C) 2007, Sebastian Hellmann
+ *
+ * This file is part of DL-Learner.
+ *
+ * DL-Learner 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.
+ *
+ * DL-Learner 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.dllearner.modules.sparql;
import java.io.File;
@@ -17,6 +36,13 @@
import org.dllearner.modules.PreprocessingModule;
+/**
+ * implements the module
+ * like a main function
+ *
+ * @author Sebastian Hellmann
+ *
+ */
public class SparqlModule implements PreprocessingModule {
FileWriter fw;
@@ -27,10 +53,19 @@
+/**
+* @return current version
+ */
public String getModuleName(){
return "Sparql Module v0.3";
}
+ /**
+ *
+ * implements the required function
+ * sets up everything, reads the option collects the ontology, writes it to a file
+ *
+ */
public void preprocess(KB kb,
Map<AtomicConcept, SortedSet<Individual>> positiveExamples,
Map<AtomicConcept, SortedSet<Individual>> negativeExamples,
@@ -93,7 +128,7 @@
}
}// end for
System.out.println("SparqlModul: Processing finished");
- // subject for which information is drafted from wikipedia
+ // subjects for which information is drafted from wikipedia
String[] subjectList=makeSubjectList(prefix, positiveExamples, negativeExamples);
Modified: trunk/src/dl-learner/org/dllearner/modules/sparql/Util.java
===================================================================
--- trunk/src/dl-learner/org/dllearner/modules/sparql/Util.java 2007-09-05 09:59:01 UTC (rev 130)
+++ trunk/src/dl-learner/org/dllearner/modules/sparql/Util.java 2007-09-05 11:34:25 UTC (rev 131)
@@ -1,3 +1,22 @@
+/**
+ * Copyright (C) 2007, Sebastian Hellmann
+ *
+ * This file is part of DL-Learner.
+ *
+ * DL-Learner 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.
+ *
+ * DL-Learner 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.dllearner.modules.sparql;
import java.util.HashSet;
@@ -4,9 +23,21 @@
import java.util.Iterator;
import java.util.Set;
+/**
+ * mainly converts datatypes
+ *
+ * @author Sebastian Hellmann
+ *
+ */
public class Util {
+ /**
+ * easy conversion
+ *
+ * @param s
+ * @return
+ */
public static String[] setToArray(Set<String> s){
if(s==null)return null;
String[] ret=new String[s.size()];
@@ -20,6 +51,11 @@
}
+ /**
+ * Warning use only for visualization
+ * @param s
+ * @return String without certain namespaces
+ */
public static String replaceNamespace(String s){
s=s.replace("http://dbpedia.org/class/yago/", "yago:");
s=s.replace("http://dbpedia.org/class/", "yago2:");
@@ -32,6 +68,10 @@
return s;
}
+ /**
+ * prints a hashset to stdout
+ * @param h
+ */
public static void printHashSet(HashSet<String> h){
Iterator<String> it=h.iterator();
String current="";
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