/// <exception cref="System.IO.IOException"/>
public Compressor GetCompressor()
{
CompressionCodec codec = GetCodec();
if (codec != null)
{
Compressor compressor = CodecPool.GetCompressor(codec);
if (compressor != null)
{
if (compressor.Finished())
{
// Somebody returns the compressor to CodecPool but is still using
// it.
Log.Warn("Compressor obtained from CodecPool already finished()");
}
else
{
if (Log.IsDebugEnabled())
{
Log.Debug("Got a compressor: " + compressor.GetHashCode());
}
}
compressor.Reset();
}
return(compressor);
}
return(null);
}
/// <exception cref="System.IO.IOException"/>
public Writer(Configuration conf, FSDataOutputStream @out, Type keyClass, Type valueClass
, CompressionCodec codec, Counters.Counter writesCounter, bool ownOutputStream)
{
this.writtenRecordsCounter = writesCounter;
this.checksumOut = new IFileOutputStream(@out);
this.rawOut = @out;
this.start = this.rawOut.GetPos();
if (codec != null)
{
this.compressor = CodecPool.GetCompressor(codec);
if (this.compressor != null)
{
this.compressor.Reset();
this.compressedOut = codec.CreateOutputStream(checksumOut, compressor);
this.@out = new FSDataOutputStream(this.compressedOut, null);
this.compressOutput = true;
}
else
{
Log.Warn("Could not obtain compressor from CodecPool");
this.@out = new FSDataOutputStream(checksumOut, null);
}
}
else
{
this.@out = new FSDataOutputStream(checksumOut, null);
}
this.keyClass = keyClass;
this.valueClass = valueClass;
if (keyClass != null)
{
SerializationFactory serializationFactory = new SerializationFactory(conf);
this.keySerializer = serializationFactory.GetSerializer(keyClass);
this.keySerializer.Open(buffer);
this.valueSerializer = serializationFactory.GetSerializer(valueClass);
this.valueSerializer.Open(buffer);
}
this.ownOutputStream = ownOutputStream;
}