/**
* 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 org.apache.marmotta.ldpath.backend.file;
import org.apache.marmotta.ldpath.backend.sesame.SesameRepositoryBackend;
import org.openrdf.repository.Repository;
import org.openrdf.repository.RepositoryConnection;
import org.openrdf.repository.RepositoryException;
import org.openrdf.repository.sail.SailRepository;
import org.openrdf.rio.RDFFormat;
import org.openrdf.rio.RDFParseException;
import org.openrdf.rio.Rio;
import org.openrdf.sail.memory.MemoryStore;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.IOException;
import java.net.URL;
/**
* Add file description here!
* <p/>
* Author: Sebastian Schaffert
*/
public class FileBackend extends SesameRepositoryBackend {
private static final Logger log = LoggerFactory.getLogger(FileBackend.class);
public FileBackend(File file) {
this(file,null);
}
public FileBackend(File file, String mimetype) {
super();
RDFFormat format = null;
if(mimetype != null) {
format = Rio.getParserFormatForMIMEType(mimetype);
}
try {
Repository repository = new SailRepository(new MemoryStore());
repository.initialize();
setRepository(repository);
RepositoryConnection connection = repository.getConnection();
try {
connection.add(file,null,format);
} finally {
connection.close();
}
} catch (RDFParseException e) {
log.error("error parsing RDF input data from file {}",file,e);
} catch (IOException e) {
log.error("I/O error while reading input data from file {}", file, e);
} catch (RepositoryException e) {
log.error("error initialising connection to Sesame in-memory repository",e);
}
}
/**
* Initialise a new sesame backend. Repository needs to be set using setRepository.
*/
public FileBackend(String fileName) {
this(new File(fileName));
}
public FileBackend(String fileName, String mimetype) {
this(new File(fileName), mimetype);
}
public FileBackend(URL url) {
this(url,null);
}
public FileBackend(URL url, String mimetype) {
super();
RDFFormat format = null;
if(mimetype != null) {
format = Rio.getParserFormatForMIMEType(mimetype);
}
try {
Repository repository = new SailRepository(new MemoryStore());
repository.initialize();
setRepository(repository);
RepositoryConnection connection = repository.getConnection();
try {
connection.add(url,null,format);
} finally {
connection.close();
}
} catch (RDFParseException e) {
log.error("error parsing RDF input data from url {}",url,e);
} catch (IOException e) {
log.error("I/O error while reading input data from url {}", url, e);
} catch (RepositoryException e) {
log.error("error initialising connection to Sesame in-memory repository",e);
}
}
}