/**
* Copyright (c) 2013, Institute of Information Systems (Sven Groppe and contributors of LUPOSDATE), University of Luebeck
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this list of conditions and the following
* disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other materials provided with the distribution.
* - Neither the name of the University of Luebeck nor the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package lupos.engine.evaluators;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import lupos.datastructures.queryresult.QueryResult;
import lupos.endpoint.server.format.Formatter;
import lupos.endpoint.server.format.XMLFormatter;
import lupos.misc.FileHelper;
import lupos.sparql1_1.operatorgraph.ServiceApproaches;
public class SaveRDF3XResult {
public static void main(final String[] args) throws Exception{
System.out.println("lupos.engine.evaluators.SaveRDF3XResult processes a SPARQL query and saves its result");
System.out.println("Usage: java lupos.engine.evaluators.SaveRDF3XResult <Directory of indices> <Query-File> <Output-File> [<Query-File 2> <Output-File 2> ...]");
if(args.length<3 || args.length%2 == 0){
System.err.println("Wrong number of arguments!");
}
final RDF3XQueryEvaluator evaluator = new RDF3XQueryEvaluator();
evaluator.loadLargeScaleIndices(args[0]);
final Formatter formatter = new XMLFormatter();
ServiceApproaches.Semijoin_Approach.setup();
for(int i=1; i<args.length; i+=2){
final String query = FileHelper.readFile(args[i]);
System.out.println("\nProcess SPARQL query:");
System.out.println(query);
final QueryResult queryResult = evaluator.getResult(query, true);
System.out.println("\nSave result into file: "+args[i+1]);
final OutputStream outputStream = new BufferedOutputStream(new FileOutputStream(args[i+1]));
formatter.writeResult(outputStream, evaluator.getVariablesOfQuery(), queryResult);
outputStream.close();
evaluator.writeOutIndexFileAndModifiedPages(args[0]);
queryResult.release();
}
System.out.println("\nDone!");
}
}