/**
* Copyright 2012-2013 the Semargl contributors. See AUTHORS for more details.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.semarglproject.example;
import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import org.apache.clerezza.rdf.core.MGraph;
import org.apache.clerezza.rdf.core.UriRef;
import org.apache.clerezza.rdf.core.access.TcManager;
import org.apache.clerezza.rdf.core.serializedform.Parser;
import org.apache.clerezza.rdf.core.serializedform.SupportedFormat;
import org.semarglproject.clerezza.core.sink.ClerezzaSink;
import org.semarglproject.jena.core.sink.JenaSink;
import org.semarglproject.source.StreamProcessor;
import org.semarglproject.rdf.ParseException;
import org.semarglproject.rdf.RdfXmlParser;
import org.xml.sax.SAXException;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public final class BenchmarkRdfXml {
private static final String BENCHMARK_DIR = "src/main/resources";
private static final String HTTP_EXAMPLE_COM = "http://example.com";
private BenchmarkRdfXml() {
}
private static List<File> listFiles(String path) {
ArrayList<File> result = new ArrayList<File>();
File dir = new File(path);
if (dir.exists()) {
result.addAll(Arrays.asList(dir.listFiles()));
}
return result;
}
private static MGraph createClerezzaModel() {
TcManager manager = TcManager.getInstance();
UriRef graphUri = new UriRef(HTTP_EXAMPLE_COM);
if (manager.listMGraphs().contains(graphUri)) {
manager.deleteTripleCollection(graphUri);
}
return manager.createMGraph(graphUri);
}
private static long benchmarkSemarglJena(String path) throws SAXException, ParseException {
System.out.println("Semargl-Jena benchmark");
Model model = ModelFactory.createDefaultModel();
StreamProcessor streamProcessor = new StreamProcessor(RdfXmlParser.connect(JenaSink.connect(model)));
List<File> files = listFiles(path);
long time = System.nanoTime();
for (File file : files) {
streamProcessor.process(file, HTTP_EXAMPLE_COM);
}
System.out.println("Model size = " + model.size());
return System.nanoTime() - time;
}
private static long benchmarkSemarglClerezza(String path) throws SAXException, ParseException {
System.out.println("Semargl-Clerezza benchmark");
MGraph model = createClerezzaModel();
StreamProcessor streamProcessor = new StreamProcessor(RdfXmlParser.connect(ClerezzaSink.connect(model)));
List<File> files = listFiles(path);
long time = System.nanoTime();
for (File file : files) {
streamProcessor.process(file, HTTP_EXAMPLE_COM);
}
System.out.println("Model size = " + model.size());
return System.nanoTime() - time;
}
private static long benchmarkJena(String path) throws FileNotFoundException {
System.out.println("Jena benchmark");
Model model = ModelFactory.createDefaultModel();
List<File> files = listFiles(path);
long time = System.nanoTime();
for (File file : files) {
model.read(new FileReader(file), HTTP_EXAMPLE_COM);
}
System.out.println("Model size = " + model.size());
return System.nanoTime() - time;
}
private static long benchmarkClerezza(String path) throws FileNotFoundException {
System.out.println("Clerezza benchmark");
MGraph model = createClerezzaModel();
Parser parser = Parser.getInstance();
List<File> files = listFiles(path);
long time = System.nanoTime();
for (File file : files) {
parser.parse(model, new FileInputStream(file), SupportedFormat.RDF_XML);
}
System.out.println("Model size = " + model.size());
return System.nanoTime() - time;
}
private static void printResults(long time) {
System.out.println("Processing time: " + time / 1000000 + " ms");
System.out.println();
}
public static void main(String[] args) throws Exception {
printResults(benchmarkSemarglJena(BENCHMARK_DIR));
printResults(benchmarkJena(BENCHMARK_DIR));
printResults(benchmarkSemarglClerezza(BENCHMARK_DIR));
printResults(benchmarkClerezza(BENCHMARK_DIR));
}
}