/*
* Copyright Aduna (http://www.aduna-software.com/) (c) 2007.
*
* Licensed under the Aduna BSD-style license.
*/
package org.openrdf.repository.dataset;
import java.net.MalformedURLException;
import java.net.URL;
import org.openrdf.model.URI;
import org.openrdf.query.BooleanQuery;
import org.openrdf.query.Dataset;
import org.openrdf.query.GraphQuery;
import org.openrdf.query.MalformedQueryException;
import org.openrdf.query.Query;
import org.openrdf.query.QueryEvaluationException;
import org.openrdf.query.QueryLanguage;
import org.openrdf.query.TupleQuery;
import org.openrdf.repository.RepositoryException;
import org.openrdf.repository.base.RepositoryConnectionWrapper;
import org.openrdf.repository.sail.SailBooleanQuery;
import org.openrdf.repository.sail.SailGraphQuery;
import org.openrdf.repository.sail.SailQuery;
import org.openrdf.repository.sail.SailRepositoryConnection;
import org.openrdf.repository.sail.SailTupleQuery;
public class DatasetRepositoryConnection extends RepositoryConnectionWrapper {
private DatasetRepository repository;
private SailRepositoryConnection delegate;
public DatasetRepositoryConnection(DatasetRepository repository, SailRepositoryConnection delegate) {
super(repository, delegate);
this.repository = repository;
this.delegate = delegate;
}
@Override
public BooleanQuery prepareBooleanQuery(QueryLanguage ql, String query, String baseURI)
throws MalformedQueryException, RepositoryException
{
return wrap(delegate.prepareBooleanQuery(ql, query, baseURI));
}
@Override
public GraphQuery prepareGraphQuery(QueryLanguage ql, String query, String baseURI)
throws MalformedQueryException, RepositoryException
{
return wrap(delegate.prepareGraphQuery(ql, query, baseURI));
}
@Override
public Query prepareQuery(QueryLanguage ql, String query, String baseURI)
throws MalformedQueryException, RepositoryException
{
return wrap(delegate.prepareQuery(ql, query, baseURI));
}
@Override
public TupleQuery prepareTupleQuery(QueryLanguage ql, String query, String baseURI)
throws MalformedQueryException, RepositoryException
{
return wrap(delegate.prepareTupleQuery(ql, query, baseURI));
}
void loadDataset(Dataset datasets)
throws QueryEvaluationException
{
try {
if (datasets == null) {
return;
}
for (URI dataset : datasets.getDefaultGraphs()) {
repository.loadDataset(new URL(dataset.toString()), dataset);
}
for (URI dataset : datasets.getNamedGraphs()) {
repository.loadDataset(new URL(dataset.toString()), dataset);
}
}
catch (MalformedURLException e) {
throw new AssertionError(e);
}
catch (RepositoryException e) {
throw new QueryEvaluationException(e);
}
}
private Query wrap(SailQuery q) {
if (q instanceof SailBooleanQuery) {
return wrap((SailBooleanQuery)q);
}
if (q instanceof SailGraphQuery) {
return wrap((SailGraphQuery)q);
}
if (q instanceof SailTupleQuery) {
return wrap((SailTupleQuery)q);
}
throw new IllegalArgumentException(q.getClass().getSimpleName() + " not supported on DatasetRepository");
}
private BooleanQuery wrap(final SailBooleanQuery q) {
return new DatasetBooleanQuery(this, q);
}
private GraphQuery wrap(final SailGraphQuery q) {
return new DatasetGraphQuery(this, q);
}
private TupleQuery wrap(final SailTupleQuery q) {
return new DatasetTupleQuery(this, q);
}
}