io.trino.hive.formats.compression.ValueDecompressor Maven / Gradle / Ivy
/*
* Licensed 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 io.trino.hive.formats.compression;
import io.airlift.compress.v3.hadoop.HadoopStreams;
import io.airlift.slice.Slice;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import static java.util.Objects.requireNonNull;
public final class ValueDecompressor
{
private final HadoopStreams hadoopStreams;
ValueDecompressor(HadoopStreams hadoopStreams)
{
this.hadoopStreams = requireNonNull(hadoopStreams, "hadoopStreams is null");
}
public void decompress(Slice compressed, OutputStream uncompressed)
throws IOException
{
try (InputStream decompressorStream = hadoopStreams.createInputStream(compressed.getInput())) {
decompressorStream.transferTo(uncompressed);
}
catch (IndexOutOfBoundsException | IOException e) {
throw new IOException("Compressed stream is truncated", e);
}
}
public void decompress(Slice compressed, Slice uncompressed)
throws IOException
{
try (InputStream decompressorStream = hadoopStreams.createInputStream(compressed.getInput())) {
uncompressed.setBytes(0, decompressorStream, uncompressed.length());
}
catch (IndexOutOfBoundsException | IOException e) {
throw new IOException("Compressed stream is truncated", e);
}
}
}