/*
* Copyright Aduna (http://www.aduna-software.com/) (c) 1997-2006.
*
* Licensed under the Aduna BSD-style license.
*/
package org.openrdf.rio.rdfxml;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.util.LinkedHashSet;
import java.util.Set;
import javax.xml.parsers.ParserConfigurationException;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.apache.xml.security.c14n.CanonicalizationException;
import org.apache.xml.security.c14n.Canonicalizer;
import org.apache.xml.security.c14n.InvalidCanonicalizerException;
import org.xml.sax.SAXException;
import org.openrdf.model.Literal;
import org.openrdf.model.Statement;
import org.openrdf.model.URI;
import org.openrdf.model.impl.ValueFactoryImpl;
import org.openrdf.model.util.ModelUtil;
import org.openrdf.model.vocabulary.RDF;
import org.openrdf.query.BindingSet;
import org.openrdf.query.QueryLanguage;
import org.openrdf.repository.Repository;
import org.openrdf.repository.RepositoryConnection;
import org.openrdf.repository.sail.SailRepository;
import org.openrdf.result.TupleResult;
import org.openrdf.rio.RDFFormat;
import org.openrdf.rio.RDFParseException;
import org.openrdf.rio.RDFParser;
import org.openrdf.rio.helpers.StatementCollector;
import org.openrdf.rio.ntriples.NTriplesParser;
import org.openrdf.sail.memory.MemoryStore;
/**
* JUnit test for the RDF/XML parser that uses the test manifest that is
* available <a
* href="http://www.w3.org/2000/10/rdf-tests/rdfcore/Manifest.rdf">online</a>.
*/
public abstract class RDFXMLParserTestCase {
/*-----------*
* Constants *
*-----------*/
private static String W3C_TESTS_DIR = "http://www.w3.org/2000/10/rdf-tests/rdfcore/";
private static String LOCAL_TESTS_DIR = "/testcases/rdfxml/";
private static String W3C_MANIFEST_FILE = W3C_TESTS_DIR + "Manifest.rdf";
private static String OPENRDF_MANIFEST_FILE = LOCAL_TESTS_DIR + "openrdf/Manifest.rdf";
/*--------------------*
* Static initializer *
*--------------------*/
public TestSuite createTestSuite()
throws Exception
{
// Create an RDF repository for the manifest data
Repository repository = new SailRepository(new MemoryStore());
repository.initialize();
RepositoryConnection con = repository.getConnection();
// Add W3C's manifest
URL w3cManifest = resolveURL(W3C_MANIFEST_FILE);
con.add(w3cManifest, base(W3C_MANIFEST_FILE), RDFFormat.RDFXML);
// Add our own manifest
URL localManifest = resolveURL(OPENRDF_MANIFEST_FILE);
con.add(localManifest, base(localManifest.toString()), RDFFormat.RDFXML);
// Create test suite
TestSuite suite = new TestSuite(RDFXMLParserTestCase.class.getName());
// Add all positive parser tests
String query = "select TESTCASE, INPUT, OUTPUT "
+ "from {TESTCASE} rdf:type {test:PositiveParserTest}; "
+ " test:inputDocument {INPUT}; "
+ " test:outputDocument {OUTPUT}; "
+ " test:status {\"APPROVED\"} "
+ "using namespace test = <http://www.w3.org/2000/10/rdf-tests/rdfcore/testSchema#>";
TupleResult queryResult = con.prepareTupleQuery(QueryLanguage.SERQL, query).evaluate();
while (queryResult.hasNext()) {
BindingSet bindingSet = queryResult.next();
String caseURI = bindingSet.getValue("TESTCASE").toString();
String inputURL = bindingSet.getValue("INPUT").toString();
String outputURL = bindingSet.getValue("OUTPUT").toString();
suite.addTest(new PositiveParserTest(caseURI, inputURL, outputURL));
}
queryResult.close();
// Add all negative parser tests
query = "select TESTCASE, INPUT " + "from {TESTCASE} rdf:type {test:NegativeParserTest}; "
+ " test:inputDocument {INPUT}; " + " test:status {\"APPROVED\"} "
+ "using namespace test = <http://www.w3.org/2000/10/rdf-tests/rdfcore/testSchema#>";
queryResult = con.prepareTupleQuery(QueryLanguage.SERQL, query).evaluate();
while (queryResult.hasNext()) {
BindingSet bindingSet = queryResult.next();
String caseURI = bindingSet.getValue("TESTCASE").toString();
String inputURL = bindingSet.getValue("INPUT").toString();
suite.addTest(new NegativeParserTest(caseURI, inputURL));
}
queryResult.close();
con.close();
repository.shutDown();
return suite;
}
private static URL resolveURL(String urlString)
throws MalformedURLException
{
if (urlString.startsWith(W3C_TESTS_DIR)) {
// resolve to local copy
urlString = LOCAL_TESTS_DIR + "w3c-approved/" + urlString.substring(W3C_TESTS_DIR.length());
}
if (urlString.startsWith("/")) {
return RDFXMLParserTestCase.class.getResource(urlString);
}
else {
return url(urlString);
}
}
protected abstract RDFParser createRDFParser();
/*--------------------------------*
* Inner class PositiveParserTest *
*--------------------------------*/
private class PositiveParserTest extends TestCase {
/*-----------*
* Variables *
*-----------*/
private String inputURL;
private String outputURL;
/*--------------*
* Constructors *
*--------------*/
public PositiveParserTest(String caseURI, String inputURL, String outputURL) {
super(caseURI);
this.inputURL = inputURL;
this.outputURL = outputURL;
}
/*---------*
* Methods *
*---------*/
@Override
protected void runTest()
throws Exception
{
// Parse input data
RDFParser rdfxmlParser = createRDFParser();
rdfxmlParser.setValueFactory(new CanonXMLValueFactory());
rdfxmlParser.setDatatypeHandling(RDFParser.DatatypeHandling.IGNORE);
Set<Statement> inputCollection = new LinkedHashSet<Statement>();
StatementCollector inputCollector = new StatementCollector(inputCollection);
rdfxmlParser.setRDFHandler(inputCollector);
InputStream in = resolveURL(inputURL).openStream();
rdfxmlParser.parse(in, base(inputURL));
in.close();
// Parse expected output data
NTriplesParser ntriplesParser = new NTriplesParser();
ntriplesParser.setValueFactory(new CanonXMLValueFactory());
ntriplesParser.setDatatypeHandling(RDFParser.DatatypeHandling.IGNORE);
Set<Statement> outputCollection = new LinkedHashSet<Statement>();
StatementCollector outputCollector = new StatementCollector(outputCollection);
ntriplesParser.setRDFHandler(outputCollector);
in = resolveURL(outputURL).openStream();
ntriplesParser.parse(in, base(inputURL));
in.close();
// Check equality of the two models
if (!ModelUtil.equals(inputCollection, outputCollection)) {
StringBuilder sb = new StringBuilder(1024);
sb.append("models not equal\n");
sb.append("Expected:\n");
for (Statement st : outputCollection) {
sb.append(st).append("\n");
}
sb.append("Actual:\n");
for (Statement st : inputCollection) {
sb.append(st).append("\n");
}
fail(sb.toString());
}
}
} // end inner class PositiveParserTest
/*--------------------------------*
* Inner class NegativeParserTest *
*--------------------------------*/
private class NegativeParserTest extends TestCase {
/*-----------*
* Variables *
*-----------*/
private String inputURL;
/*--------------*
* Constructors *
*--------------*/
public NegativeParserTest(String caseURI, String inputURL) {
super(caseURI);
this.inputURL = inputURL;
}
/*---------*
* Methods *
*---------*/
@Override
protected void runTest() {
try {
// Try parsing the input; this should result in an error being
// reported.
RDFParser rdfxmlParser = createRDFParser();
rdfxmlParser.setDatatypeHandling(RDFParser.DatatypeHandling.IGNORE);
rdfxmlParser.setRDFHandler(new StatementCollector());
InputStream in = resolveURL(inputURL).openStream();
rdfxmlParser.parse(in, base(inputURL));
in.close();
fail("Parser parses erroneous data without reporting errors");
}
catch (RDFParseException e) {
// This is expected as the input file is incorrect RDF
}
catch (Exception e) {
fail("Error: " + e.getMessage());
}
}
} // end inner class NegativeParserTest
private static class CanonXMLValueFactory extends ValueFactoryImpl {
private Canonicalizer c14n;
public CanonXMLValueFactory()
throws InvalidCanonicalizerException, ParserConfigurationException
{
org.apache.xml.security.Init.init();
c14n = Canonicalizer.getInstance(Canonicalizer.ALGO_ID_C14N_EXCL_OMIT_COMMENTS);
}
@Override
public Literal createLiteral(String value, URI datatype) {
if (RDF.XMLLITERAL.equals(datatype)) {
// Canonicalize the literal value
try {
value = new String(c14n.canonicalize(value.getBytes("UTF-8")), "UTF-8");
}
catch (UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
catch (CanonicalizationException e) {
// ignore
}
catch (ParserConfigurationException e) {
throw new RuntimeException(e);
}
catch (IOException e) {
throw new RuntimeException(e);
}
catch (SAXException e) {
// ignore
}
}
return super.createLiteral(value, datatype);
}
}
private static URL url(String uri)
throws MalformedURLException {
if (!uri.startsWith("injar:"))
return new URL(uri);
int start = uri.indexOf(':') + 3;
int end = uri.indexOf('/', start);
String encoded = uri.substring(start, end);
try {
String jar = URLDecoder.decode(encoded, "UTF-8");
return new URL("jar:" + jar + '!' + uri.substring(end));
} catch (UnsupportedEncodingException e) {
throw new AssertionError(e);
}
}
private static String base(String uri) {
if (!uri.startsWith("jar:"))
return uri;
int start = uri.indexOf(':') + 1;
int end = uri.lastIndexOf('!');
String jar = uri.substring(start, end);
try {
String encoded = URLEncoder.encode(jar, "UTF-8");
return "injar://" + encoded + uri.substring(end + 1);
} catch (UnsupportedEncodingException e) {
throw new AssertionError(e);
}
}
}