/*
* 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 parquet.hadoop.codec;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.hadoop.io.compress.Compressor;
import org.apache.hadoop.io.compress.CompressorStream;
/**
* CompressorStream class that should be used instead of the default hadoop CompressorStream
* object. Hadoop's compressor adds blocking ontop of the compression codec. We don't want
* that since our Pages already solve the need to add blocking.
*/
public class NonBlockedCompressorStream extends CompressorStream {
public NonBlockedCompressorStream(OutputStream stream, Compressor compressor, int bufferSize) {
super(stream, compressor, bufferSize);
}
@Override
public void write(byte[] b, int off, int len) throws IOException {
// Sanity checks
if (compressor.finished()) {
throw new IOException("write beyond end of stream");
}
if ((off | len | (off + len) | (b.length - (off + len))) < 0) {
throw new IndexOutOfBoundsException();
} else if (len == 0) {
return;
}
compressor.setInput(b, off, len);
}
}