/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 arq;
import arq.cmd.CmdException ;
import arq.cmdline.CmdARQ ;
import arq.cmdline.ModQueryIn ;
import arq.cmdline.ModRemote ;
import arq.cmdline.ModResultsOut ;
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.sparql.engine.http.HttpQuery ;
import com.hp.hpl.jena.sparql.engine.http.QueryExceptionHTTP ;
import com.hp.hpl.jena.sparql.util.QueryExecUtils ;
public class rsparql extends CmdARQ
{
protected ModQueryIn modQuery = new ModQueryIn() ;
protected ModRemote modRemote = new ModRemote() ;
protected ModResultsOut modResults = new ModResultsOut() ;
public static void main (String... argv)
{
new rsparql(argv).mainRun() ;
}
public rsparql(String[] argv)
{
super(argv) ;
super.addModule(modRemote) ;
super.addModule(modQuery) ;
super.addModule(modResults) ;
}
@Override
protected void processModulesAndArgs()
{
super.processModulesAndArgs() ;
if ( modRemote.getServiceURL() == null )
throw new CmdException("No SPARQL endpoint specificied") ;
}
@Override
protected void exec()
{
Query query = modQuery.getQuery() ;
try {
String serviceURL = modRemote.getServiceURL() ;
QueryExecution qe = QueryExecutionFactory.sparqlService(serviceURL, query) ;
if ( modRemote.usePost() )
HttpQuery.urlLimit = 0 ;
QueryExecUtils.executeQuery(query, qe, modResults.getResultsFormat()) ;
} catch (QueryExceptionHTTP ex)
{
throw new CmdException("HTTP Exeception", ex) ;
}
catch (Exception ex)
{
System.out.flush() ;
ex.printStackTrace(System.err) ;
}
}
@Override
protected String getSummary()
{
return null ;
}
}