org.apache.hadoop.io.compress
Class CompressorStream

java.lang.Object
  extended by java.io.OutputStream
      extended by org.apache.hadoop.io.compress.CompressionOutputStream
          extended by org.apache.hadoop.io.compress.CompressorStream
All Implemented Interfaces:
Closeable, Flushable
Direct Known Subclasses:
BlockCompressorStream

@InterfaceAudience.Public
@InterfaceStability.Evolving
public class CompressorStream
extends CompressionOutputStream


Field Summary
protected  byte[] buffer
           
protected  boolean closed
           
protected  Compressor compressor
           
 
Fields inherited from class org.apache.hadoop.io.compress.CompressionOutputStream
out
 
Constructor Summary
protected CompressorStream(OutputStream out)
          Allow derived classes to directly set the underlying stream.
  CompressorStream(OutputStream out, Compressor compressor)
           
  CompressorStream(OutputStream out, Compressor compressor, int bufferSize)
           
 
Method Summary
 void close()
           
protected  void compress()
           
 void finish()
          Finishes writing compressed data to the output stream without closing the underlying stream.
 void resetState()
          Reset the compression to the initial state.
 void write(byte[] b, int off, int len)
          Write compressed bytes to the stream.
 void write(int b)
           
 
Methods inherited from class org.apache.hadoop.io.compress.CompressionOutputStream
flush
 
Methods inherited from class java.io.OutputStream
write
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

compressor

protected Compressor compressor

buffer

protected byte[] buffer

closed

protected boolean closed
Constructor Detail

CompressorStream

public CompressorStream(OutputStream out,
                        Compressor compressor,
                        int bufferSize)

CompressorStream

public CompressorStream(OutputStream out,
                        Compressor compressor)

CompressorStream

protected CompressorStream(OutputStream out)
Allow derived classes to directly set the underlying stream.

Parameters:
out - Underlying output stream.
Method Detail

write

public void write(byte[] b,
                  int off,
                  int len)
           throws IOException
Description copied from class: CompressionOutputStream
Write compressed bytes to the stream. Made abstract to prevent leakage to underlying stream.

Specified by:
write in class CompressionOutputStream
Throws:
IOException

compress

protected void compress()
                 throws IOException
Throws:
IOException

finish

public void finish()
            throws IOException
Description copied from class: CompressionOutputStream
Finishes writing compressed data to the output stream without closing the underlying stream.

Specified by:
finish in class CompressionOutputStream
Throws:
IOException

resetState

public void resetState()
                throws IOException
Description copied from class: CompressionOutputStream
Reset the compression to the initial state. Does not reset the underlying stream.

Specified by:
resetState in class CompressionOutputStream
Throws:
IOException

close

public void close()
           throws IOException
Specified by:
close in interface Closeable
Overrides:
close in class CompressionOutputStream
Throws:
IOException

write

public void write(int b)
           throws IOException
Specified by:
write in class OutputStream
Throws:
IOException


Copyright © 2012 Apache Software Foundation. All Rights Reserved.