org.apache.marmotta.kiwi.hashing.NodeFunnel Maven / Gradle / Ivy
/*
* 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.kiwi.hashing;
import com.google.common.hash.Funnel;
import com.google.common.hash.PrimitiveSink;
import org.apache.marmotta.kiwi.io.KiWiIO;
import org.apache.marmotta.kiwi.model.rdf.KiWiNode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
/**
* Add file description here!
*
* @author Sebastian Schaffert ([email protected])
*/
public class NodeFunnel implements Funnel {
private static Logger log = LoggerFactory.getLogger(NodeFunnel.class);
private static NodeFunnel instance;
private NodeFunnel() {
}
public synchronized static NodeFunnel getInstance() {
if(instance == null) {
instance = new NodeFunnel();
}
return instance;
}
@Override
public void funnel(KiWiNode kiWiNode, PrimitiveSink primitiveSink) {
try {
KiWiIO.writeNode(new PrimitiveSinkOutput(primitiveSink), kiWiNode);
} catch (IOException e) {
log.error("I/O error while writing data to sink (cannot happen)");
}
}
}