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/**
* 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.
*/
#ifndef ORC_COMPRESSION_HH
#define ORC_COMPRESSION_HH
#include "io/InputStream.hh"
#include "io/OutputStream.hh"
namespace orc {
/**
* Create a decompressor for the given compression kind.
* @param kind the compression type to implement
* @param input the input stream that is the underlying source
* @param bufferSize the maximum size of the buffer
* @param pool the memory pool
*/
std::unique_ptr<SeekableInputStream>
createDecompressor(CompressionKind kind,
std::unique_ptr<SeekableInputStream> input,
uint64_t bufferSize,
MemoryPool& pool);
/**
* Create a compressor for the given compression kind.
* @param kind the compression type to implement
* @param outStream the output stream that is the underlying target
* @param strategy compression strategy
* @param bufferCapacity compression stream buffer total capacity
* @param compressionBlockSize compression buffer block size
* @param pool the memory pool
*/
std::unique_ptr<BufferedOutputStream>
createCompressor(CompressionKind kind,
OutputStream * outStream,
CompressionStrategy strategy,
uint64_t bufferCapacity,
uint64_t compressionBlockSize,
MemoryPool& pool);
}
#endif
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