/*
* 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.jena.hadoop.rdf.io.input.compressed;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.hadoop.conf.Configurable;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.compress.CompressionCodec;
import org.apache.jena.hadoop.rdf.io.HadoopIOConstants;
import org.apache.jena.hadoop.rdf.io.input.AbstractNodeTupleInputFormatTests;
import org.apache.jena.hadoop.rdf.types.AbstractNodeTupleWritable;
/**
*
*
* @param <TValue>
* @param <T>
*/
public abstract class AbstractCompressedNodeTupleInputFormatTests<TValue, T extends AbstractNodeTupleWritable<TValue>> extends
AbstractNodeTupleInputFormatTests<TValue, T> {
@Override
protected Configuration prepareConfiguration() {
Configuration config = super.prepareConfiguration();
config.set(HadoopIOConstants.IO_COMPRESSION_CODECS, this.getCompressionCodec().getClass().getCanonicalName());
return config;
}
@Override
protected OutputStream getOutputStream(File f) throws IOException {
CompressionCodec codec = this.getCompressionCodec();
if (codec instanceof Configurable) {
((Configurable) codec).setConf(this.prepareConfiguration());
}
FileOutputStream fileOutput = new FileOutputStream(f, false);
return codec.createOutputStream(fileOutput);
}
/**
* Gets the compression codec to use
*
* @return Compression codec
*/
protected abstract CompressionCodec getCompressionCodec();
/**
* Indicates whether inputs can be split, defaults to false for compressed
* input tests
*/
@Override
protected boolean canSplitInputs() {
return false;
}
}