org.jlab.coda.jevio

Class EvioGZIPOutputStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

java.util.zip.DeflaterOutputStream

java.util.zip.GZIPOutputStream

org.jlab.coda.jevio.EvioGZIPOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

public class EvioGZIPOutputStream
extends java.util.zip.GZIPOutputStream

Extends GZIPOutputStream in order to avoid synchronized write method. C. Timmer

This class implements a stream filter for writing compressed data in the GZIP file format.

Author:

David Connelly

Field Summary

Fields inherited from class java.util.zip.GZIPOutputStream

crc

Fields inherited from class java.util.zip.DeflaterOutputStream

buf, def

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

Constructors

Constructor and Description
EvioGZIPOutputStream(java.io.OutputStream out) Creates a new output stream with a default buffer size.
EvioGZIPOutputStream(java.io.OutputStream out, boolean syncFlush) Creates a new output stream with a default buffer size and the specified flush mode.
EvioGZIPOutputStream(java.io.OutputStream out, int size) Creates a new output stream with the specified buffer size.

Method Summary

Modifier and Type	Method and Description
void	write(byte[] buf, int off, int len) Avoid calling the parent's synchronized write method by extending and calling the unsynchronized grandparent method directly.

Methods inherited from class java.util.zip.GZIPOutputStream

finish

Methods inherited from class java.util.zip.DeflaterOutputStream

close, deflate, flush, write

Methods inherited from class java.io.FilterOutputStream

write

Methods inherited from class java.lang.Object

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

Constructor Detail

EvioGZIPOutputStream

public EvioGZIPOutputStream(java.io.OutputStream out,
                            int size)
                     throws java.io.IOException

Creates a new output stream with the specified buffer size.

The new output stream instance is created as if by invoking the 3-argument constructor GZIPOutputStream(out, size, false).

Parameters:

out - the output stream

size - the output buffer size

Throws:

java.io.IOException - If an I/O error has occurred.

java.lang.IllegalArgumentException - if size <= 0

EvioGZIPOutputStream

public EvioGZIPOutputStream(java.io.OutputStream out)
                     throws java.io.IOException

Creates a new output stream with a default buffer size.

The new output stream instance is created as if by invoking the 2-argument constructor GZIPOutputStream(out, false).

Parameters:

out - the output stream

Throws:

java.io.IOException - If an I/O error has occurred.

EvioGZIPOutputStream

public EvioGZIPOutputStream(java.io.OutputStream out,
                            boolean syncFlush)
                     throws java.io.IOException

Creates a new output stream with a default buffer size and the specified flush mode.

Parameters:

out - the output stream

syncFlush - if true invocation of the inherited flush() method of this instance flushes the compressor with flush mode Deflater.SYNC_FLUSH before flushing the output stream, otherwise only flushes the output stream

Throws:

java.io.IOException - If an I/O error has occurred.

Since:

1.7

Method Detail

write

public void write(byte[] buf,
                  int off,
                  int len)
           throws java.io.IOException

Avoid calling the parent's synchronized write method by extending and calling the unsynchronized grandparent method directly.

Writes array of bytes to the compressed output stream. This method will block until all the bytes are written.

Overrides:

write in class java.util.zip.GZIPOutputStream

Parameters:

buf - the data to be written

off - the start offset of the data

len - the length of the data

Throws:

java.io.IOException - If an I/O error has occurred.