org.elasticsearch.common.io.stream
Class LZFStreamInput

java.lang.Object
  java.io.InputStream
      org.elasticsearch.common.io.stream.StreamInput
          org.elasticsearch.common.io.stream.LZFStreamInput

All Implemented Interfaces:

java.io.Closeable

public class LZFStreamInput
extends StreamInput

Field Summary

protected boolean	_cfgFullReads Flag that indicates whether we force full reads (reading of as many bytes as requested), or 'optimal' reads (up to as many as available, but at least one).
protected StreamInput	inputStream stream to be decompressed
protected boolean	inputStreamClosed Flag that indicates if we have already called 'inputStream.close()' (to avoid calling it multiple times)

Fields inherited from class org.elasticsearch.common.io.stream.StreamInput

chararr

Constructor Summary

LZFStreamInput(StreamInput in, boolean cached)

Method Summary

int	available() Method is overridden to report number of bytes that can now be read from decoded data buffer, without reading bytes from the underlying stream.
void	close() Closes the stream to further operations.
int	read()
int	read(byte[] buffer, int offset, int length)
byte	readByte() Reads and returns a single byte.
void	readBytes(byte[] b, int offset, int len) Reads a specified number of bytes into an array at the specified offset.
protected boolean	readyBuffer() Fill the uncompressed bytes buffer by reading the underlying inputStream.
void	reset() Resets the stream.
void	reset(StreamInput in)
void	resetToBufferStart() Expert!, resets to buffer start, without the need to decompress it again.

Methods inherited from class org.elasticsearch.common.io.stream.StreamInput

readBoolean, readDouble, readFloat, readFully, readInt, readLong, readShort, readUTF, readVInt, readVLong

Methods inherited from class java.io.InputStream

mark, markSupported, read, skip

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

inputStream

protected StreamInput inputStream

stream to be decompressed

inputStreamClosed

protected boolean inputStreamClosed

Flag that indicates if we have already called 'inputStream.close()' (to avoid calling it multiple times)

_cfgFullReads

protected boolean _cfgFullReads

Flag that indicates whether we force full reads (reading of as many bytes as requested), or 'optimal' reads (up to as many as available, but at least one). Default is false, meaning that 'optimal' read is used.

Constructor Detail

LZFStreamInput

public LZFStreamInput(StreamInput in,
                      boolean cached)

Method Detail

available

public int available()

Method is overridden to report number of bytes that can now be read from decoded data buffer, without reading bytes from the underlying stream. Never throws an exception; returns number of bytes available without further reads from underlying source; -1 if stream has been closed, or 0 if an actual read (and possible blocking) is needed to find out.

Overrides:

available in class java.io.InputStream

read

public int read()
         throws java.io.IOException

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

read

public int read(byte[] buffer,
                int offset,
                int length)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

readByte

public byte readByte()
              throws java.io.IOException

Description copied from class: StreamInput

Reads and returns a single byte.

Specified by:

readByte in class StreamInput

Throws:

java.io.IOException

readBytes

public void readBytes(byte[] b,
                      int offset,
                      int len)
               throws java.io.IOException

Description copied from class: StreamInput

Reads a specified number of bytes into an array at the specified offset.

Specified by:

readBytes in class StreamInput

Parameters:

b - the array to read bytes into

offset - the offset in the array to start storing bytes

len - the number of bytes to read

Throws:

java.io.IOException

reset

public void reset()
           throws java.io.IOException

Description copied from class: StreamInput

Resets the stream.

Specified by:

reset in class StreamInput

Throws:

java.io.IOException

reset

public void reset(StreamInput in)
           throws java.io.IOException

Throws:

java.io.IOException

resetToBufferStart

public void resetToBufferStart()

Expert!, resets to buffer start, without the need to decompress it again.

close

public void close()
           throws java.io.IOException

Description copied from class: StreamInput

Closes the stream to further operations.

Specified by:

close in interface java.io.Closeable

Specified by:

close in class StreamInput

Throws:

java.io.IOException

readyBuffer

protected boolean readyBuffer()
                       throws java.io.IOException

Fill the uncompressed bytes buffer by reading the underlying inputStream.

Throws:

java.io.IOException