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[DL-Learner SVN] SF.net SVN: dl-learner:[3617] trunk/components-core/src/main/java/org/ dllearner/kb/sparql
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From: <dc...@us...> - 2012-03-23 14:53:14
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Revision: 3617
http://dl-learner.svn.sourceforge.net/dl-learner/?rev=3617&view=rev
Author: dcherix
Date: 2012-03-23 14:53:07 +0000 (Fri, 23 Mar 2012)
Log Message:
-----------
TODO:
* Resolve a problem with the OWLAPIReasoner.
* Separate Filters in A- and T-Box filters
* Schema Indexer with axioms
Added Paths:
-----------
trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/
trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/ABoxQueryGenerator.java
trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/JenaToOwlapiConverter.java
trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/QueryExecutor.java
trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/SchemaIndexer.java
trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/SparqlSimpleExtractor.java
trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/TBoxQueryGenerator.java
Added: trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/ABoxQueryGenerator.java
===================================================================
--- trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/ABoxQueryGenerator.java (rev 0)
+++ trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/ABoxQueryGenerator.java 2012-03-23 14:53:07 UTC (rev 3617)
@@ -0,0 +1,91 @@
+/**
+ *
+ */
+package org.dllearner.kb.sparql.simple;
+
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+
+import com.hp.hpl.jena.ontology.Individual;
+import com.hp.hpl.jena.ontology.OntModel;
+import com.hp.hpl.jena.util.iterator.ExtendedIterator;
+
+/**
+ * @author didierc
+ *
+ */
+public class ABoxQueryGenerator {
+ public String createQuery(List<String> individuals, OntModel model, List<String> filters) {
+ StringBuilder builder = new StringBuilder();
+ builder.append("CONSTRUCT {?s ?p ?o} ");
+ builder.append("{ ?s ?p ?o .");
+ List<String> curIndividuals;
+ if (model.isEmpty()) {
+ curIndividuals = individuals;
+ } else {
+ curIndividuals = this.difference(individuals, this.getIndividualsFromModel(model));
+ }
+ builder.append(" FILTER (?s IN( ");
+ for (String individual : curIndividuals) {
+ builder.append("<");
+ builder.append(individual);
+ builder.append(">");
+ builder.append(", ");
+ }
+ builder.deleteCharAt(builder.length() - 2);
+ builder.append("))");
+ if (filters != null) {
+ for (String filter : filters) {
+ builder.append("filter");
+ }
+ }
+ builder.append("}");
+ return builder.toString();
+ }
+
+ public String createLastQuery(List<String> individuals, OntModel model, List<String> filters) {
+ StringBuilder builder = new StringBuilder();
+ builder.append("CONSTRUCT {?s ?p ?o . ?o a ?class} ");
+ builder.append("{ ?s ?p ?o .");
+ builder.append("?o a ?class");
+ List<String> curIndividuals;
+ if (model.isEmpty()) {
+ curIndividuals = individuals;
+ } else {
+ curIndividuals = this.difference(individuals, this.getIndividualsFromModel(model));
+ }
+ builder.append(" FILTER ( ?s IN( ");
+ for (String individual : curIndividuals) {
+ builder.append("<");
+ builder.append(individual);
+ builder.append(">");
+ builder.append(", ");
+ }
+ builder.deleteCharAt(builder.length() - 2);
+ builder.append(")). ");
+ if (filters != null) {
+ for (String filter : filters) {
+ builder.append(filter);
+ builder.append(". ");
+ }
+ }
+ builder.append("}");
+ return builder.toString();
+ }
+
+ private List<String> getIndividualsFromModel(OntModel model) {
+ ExtendedIterator<Individual> iterator = model.listIndividuals();
+ LinkedList<String> result = new LinkedList<String>();
+ while (iterator.hasNext()) {
+ result.add(iterator.next().getURI());
+ }
+ return result;
+ }
+
+ public List<String> difference(List<String> a, List<String> b) {
+ ArrayList<String> result = new ArrayList<String>(b);
+ result.removeAll(a);
+ return result;
+ }
+}
Property changes on: trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/ABoxQueryGenerator.java
___________________________________________________________________
Added: svn:mime-type
+ text/plain
Added: trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/JenaToOwlapiConverter.java
===================================================================
--- trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/JenaToOwlapiConverter.java (rev 0)
+++ trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/JenaToOwlapiConverter.java 2012-03-23 14:53:07 UTC (rev 3617)
@@ -0,0 +1,46 @@
+package org.dllearner.kb.sparql.simple;
+
+import java.io.StringReader;
+import java.io.StringWriter;
+
+import org.semanticweb.owlapi.apibinding.OWLManager;
+import org.semanticweb.owlapi.io.ReaderDocumentSource;
+import org.semanticweb.owlapi.model.OWLOntology;
+import org.semanticweb.owlapi.model.OWLOntologyCreationException;
+import org.semanticweb.owlapi.model.OWLOntologyManager;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.hp.hpl.jena.rdf.model.Model;
+
+/**
+ *
+ * @author Didier Cherix
+ *
+ */
+public class JenaToOwlapiConverter {
+
+ private static Logger log = LoggerFactory.getLogger(JenaToOwlapiConverter.class);
+
+ /**
+ *
+ * @param model
+ * @return
+ */
+ public OWLOntology convert(Model model) {
+ OWLOntologyManager manager = OWLManager.createOWLOntologyManager();
+ OWLOntology ontology=null;
+ try {
+ StringWriter writer = new StringWriter();
+ model.write(writer);
+ StringBuffer stringBuffer = writer.getBuffer();
+ ReaderDocumentSource documentSource = new ReaderDocumentSource(new StringReader(
+ stringBuffer.toString()));
+ ontology = manager.loadOntologyFromOntologyDocument(documentSource);
+ } catch (OWLOntologyCreationException e) {
+ log.error(e.getMessage(), e);
+ }
+ return ontology;
+ }
+
+}
Property changes on: trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/JenaToOwlapiConverter.java
___________________________________________________________________
Added: svn:mime-type
+ text/plain
Added: trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/QueryExecutor.java
===================================================================
--- trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/QueryExecutor.java (rev 0)
+++ trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/QueryExecutor.java 2012-03-23 14:53:07 UTC (rev 3617)
@@ -0,0 +1,39 @@
+/**
+ *
+ */
+package org.dllearner.kb.sparql.simple;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.hp.hpl.jena.ontology.OntModel;
+import com.hp.hpl.jena.query.Query;
+import com.hp.hpl.jena.query.QueryExecution;
+import com.hp.hpl.jena.query.QueryExecutionFactory;
+import com.hp.hpl.jena.query.QueryFactory;
+
+/**
+ * @author didierc
+ *
+ */
+public class QueryExecutor {
+
+ private static Logger log=LoggerFactory.getLogger(QueryExecutor.class);
+
+ public OntModel executeQuery(String queryString, String endpoint, OntModel model) {
+ Query query = QueryFactory.create(queryString);
+ log.debug("Jena Query: ", query);
+ QueryExecution qExec = QueryExecutionFactory.sparqlService(endpoint, query);
+ qExec.execConstruct(model);
+ return model;
+ }
+
+ public OntModel executeQuery(String queryString, String endpoint, OntModel model, String defaultGraphURI) {
+ Query query = QueryFactory.create(queryString);
+ log.debug("Jena Query: ", query);
+ QueryExecution qExec = QueryExecutionFactory.sparqlService(endpoint, query, defaultGraphURI);
+ log.debug("Qexec: {}",qExec);
+ qExec.execConstruct(model);
+ return model;
+ }
+}
Property changes on: trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/QueryExecutor.java
___________________________________________________________________
Added: svn:mime-type
+ text/plain
Added: trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/SchemaIndexer.java
===================================================================
--- trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/SchemaIndexer.java (rev 0)
+++ trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/SchemaIndexer.java 2012-03-23 14:53:07 UTC (rev 3617)
@@ -0,0 +1,31 @@
+package org.dllearner.kb.sparql.simple;
+
+import org.nlp2rdf.ontology.ClassIndexer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.hp.hpl.jena.ontology.OntModel;
+import com.hp.hpl.jena.rdf.model.ModelFactory;
+
+public class SchemaIndexer {
+ private static Logger log = LoggerFactory.getLogger(SchemaIndexer.class);
+ private ClassIndexer classIndexer=null;
+
+ public SchemaIndexer(){}
+
+ public void init(){
+ classIndexer=new ClassIndexer();
+ OntModel model = ModelFactory.createOntologyModel();
+ model.read(SchemaIndexer.class.getResourceAsStream("dbpedia_3-3.6.owl"), null);
+ classIndexer.index(model);
+ }
+
+ public OntModel getHierarchyForURI(String classUri){
+ if(classIndexer==null){
+ this.init();
+ }
+ return classIndexer.getHierarchyForClassURI(classUri);
+ }
+
+
+}
\ No newline at end of file
Property changes on: trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/SchemaIndexer.java
___________________________________________________________________
Added: svn:mime-type
+ text/plain
Copied: trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/SparqlSimpleExtractor.java (from rev 3609, trunk/components-core/src/main/java/org/dllearner/kb/sparql/SparqlSimpleExtractor.java)
===================================================================
--- trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/SparqlSimpleExtractor.java (rev 0)
+++ trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/SparqlSimpleExtractor.java 2012-03-23 14:53:07 UTC (rev 3617)
@@ -0,0 +1,165 @@
+package org.dllearner.kb.sparql.simple;
+
+import java.util.LinkedList;
+import java.util.List;
+
+import org.dllearner.core.ComponentAnn;
+import org.dllearner.core.ComponentInitException;
+import org.dllearner.core.KnowledgeSource;
+import org.dllearner.core.config.ConfigOption;
+import org.semanticweb.owlapi.model.OWLOntology;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.hp.hpl.jena.ontology.OntModel;
+import com.hp.hpl.jena.rdf.model.Model;
+import com.hp.hpl.jena.rdf.model.ModelFactory;
+
+@ComponentAnn(name = "efficient SPARQL fragment extractor", shortName = "sparqls", version = 0.1)
+public class SparqlSimpleExtractor implements KnowledgeSource {
+
+ @ConfigOption(name = "endpointURL", description = "URL of the SPARQL endpoint", required = true)
+ private String endpointURL = null;
+ private OntModel model = null;
+ @ConfigOption(name = "instances", description = "List of the instances to use", required = true)
+ private List<String> instances = null;
+ @ConfigOption(name = "filters", description = "List of the filters to use", required = true)
+ private List<String> filters = null;
+ @ConfigOption(name = "recursionDepth", description = "recursion depth", required = true)
+ private int recursionDepth = 0;
+ @ConfigOption(name = "defaultGraphURI", description = "default graph URI", required = true)
+ private String defaultGraphURIs=null;
+ private OWLOntology owlOntology;
+
+ private static Logger log = LoggerFactory.getLogger(SparqlSimpleExtractor.class);
+
+ public SparqlSimpleExtractor() {
+ model = ModelFactory.createOntologyModel();
+ }
+
+ /**
+ * @param args
+ * @throws ComponentInitException
+ */
+ public static void main(String[] args) throws ComponentInitException {
+ SparqlSimpleExtractor extractor = new SparqlSimpleExtractor();
+ // extractor.init();
+ List<String> individuals = new LinkedList<String>();
+ individuals.add("People");
+ individuals.add("Animals");
+ extractor.setInstances(individuals);
+ // System.out.println(extractor.createQuery());
+ }
+
+ @Override
+ public void init() throws ComponentInitException {
+ if (endpointURL == null) {
+ throw new ComponentInitException("Parameter endpoint URL is required");
+ }
+ if (instances == null) {
+ throw new ComponentInitException("Parameter instances is required");
+ }
+ if (recursionDepth == 0) {
+ throw new ComponentInitException(
+ "A value bigger than 0 is required for parameter recursionDepth");
+ }
+ ABoxQueryGenerator aGenerator = new ABoxQueryGenerator();
+ QueryExecutor executor = new QueryExecutor();
+ String queryString;
+ for (int i = 0; i < recursionDepth - 1; i++) {
+ queryString=aGenerator.createQuery(instances, model, filters);
+ log.info("SPARQL: {}", queryString);
+ executor.executeQuery(queryString, endpointURL, model,defaultGraphURIs);
+ }
+ queryString = aGenerator.createLastQuery(instances, model, filters);
+ log.info("SPARQL: {}", queryString);
+
+ executor.executeQuery(queryString, endpointURL, model, defaultGraphURIs);
+ TBoxQueryGenerator tGenerator = new TBoxQueryGenerator();
+ queryString = tGenerator.createQuery(model, filters, instances);
+ executor.executeQuery(queryString, endpointURL, model,defaultGraphURIs);
+ JenaToOwlapiConverter converter = new JenaToOwlapiConverter();
+ owlOntology=converter.convert(this.model);
+ }
+
+ public String getEndpointURL() {
+ return endpointURL;
+ }
+
+ public void setEndpointURL(String endpointURL) {
+ this.endpointURL = endpointURL;
+ }
+
+ public Model getModel() {
+ return model;
+ }
+
+ public void setModel(OntModel model) {
+ this.model = model;
+ }
+
+ /**
+ * @return the filters
+ */
+ public List<String> getFilters() {
+ return filters;
+ }
+
+ /**
+ * @param filters
+ * the filters to set
+ */
+ public void setFilters(List<String> filters) {
+ this.filters = filters;
+ }
+
+ /**
+ * @return the instances
+ */
+ public List<String> getInstances() {
+ return instances;
+ }
+
+ /**
+ * @param instances the instances to set
+ */
+ public void setInstances(List<String> instances) {
+ this.instances = instances;
+ }
+
+ /**
+ * @return the recursionDepth
+ */
+ public int getRecursionDepth() {
+ return recursionDepth;
+ }
+
+ /**
+ * @param recursionDepth the recursionDepth to set
+ */
+ public void setRecursionDepth(int recursionDepth) {
+ this.recursionDepth = recursionDepth;
+ }
+
+ /**
+ * @return the defaultGraphURI
+ */
+ public String getDefaultGraphURIs() {
+ return defaultGraphURIs;
+ }
+
+ /**
+ * @param defaultGraphURI the defaultGraphURI to set
+ */
+ public void setDefaultGraphURIs(String defaultGraphURI) {
+ this.defaultGraphURIs = defaultGraphURI;
+ }
+
+ /**
+ * @return
+ */
+ public OWLOntology getOWLOntology() {
+ return owlOntology;
+ }
+
+}
Added: trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/TBoxQueryGenerator.java
===================================================================
--- trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/TBoxQueryGenerator.java (rev 0)
+++ trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/TBoxQueryGenerator.java 2012-03-23 14:53:07 UTC (rev 3617)
@@ -0,0 +1,35 @@
+/**
+ *
+ */
+package org.dllearner.kb.sparql.simple;
+
+import java.util.List;
+
+import com.hp.hpl.jena.ontology.OntModel;
+
+/**
+ * @author didierc
+ *
+ */
+public class TBoxQueryGenerator {
+ public String createQuery(OntModel model, List<String> filters, List<String> individuals) {
+ StringBuilder builder = new StringBuilder("CONSTRUCT { ?example a ?class . } ");
+ builder.append("{ ?example a ?class . ");
+ builder.append("Filter ( ?example IN(");
+ for (String individual : individuals) {
+ builder.append("<");
+ builder.append(individual);
+ builder.append(">");
+ builder.append(", ");
+ }
+ builder.deleteCharAt(builder.length() - 2);
+ builder.append(")).");
+ if (filters != null) {
+ for (String filter : filters) {
+ builder.append(filter);
+ }
+ }
+ builder.append("}");
+ return builder.toString();
+ }
+}
Property changes on: trunk/components-core/src/main/java/org/dllearner/kb/sparql/simple/TBoxQueryGenerator.java
___________________________________________________________________
Added: svn:mime-type
+ text/plain
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