eu.unicore.uftp.jparss

Class POutputStream

java.lang.Object

java.io.OutputStream

eu.unicore.uftp.jparss.POutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class POutputStream
extends OutputStream

Constructor Summary

Constructors

Constructor and Description
POutputStream(OutputStream[] streams) Default constructor Construct an empty parallel output stream.

Method Summary

Modifier and Type	Method and Description
void	close() Closes this output stream and releases any system resources associated with this stream.
boolean	finished() Check whether we are finished or not.
void	flush() Flushes this output stream and forces any buffered output bytes to be written out.
int	getSeq() Return sequence number.
void	write(byte[] b) Writes b.length bytes from the specified byte array to this output stream.
void	write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this output stream.
void	write(int b) Writes the specified byte to this output stream.
protected void	writeParallel(byte[] b, int off, int len)
void	writerStatus(int pos, boolean stat) Update writer status by individual writer.
protected void	writeSingleThreaded(byte[] b, int off, int len)

Methods inherited from class java.lang.Object

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

Constructor Detail

POutputStream

public POutputStream(OutputStream[] streams)

Default constructor Construct an empty parallel output stream.

Method Detail

close

public void close()
           throws IOException

Closes this output stream and releases any system resources associated with this stream. The general contract of close is that it closes the output stream. A closed stream cannot perform output operations and cannot be reopened.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class OutputStream

Throws:

IOException

finished

public boolean finished()

Check whether we are finished or not.

writerStatus

public void writerStatus(int pos,
                         boolean stat)

Update writer status by individual writer.

flush

public void flush()
           throws IOException

Flushes this output stream and forces any buffered output bytes to be written out. The general contract of flush is that calling it is an indication that, if any bytes previously written have been buffered by the implementation of the output stream, such bytes should immediately be written to their intended destination.

Specified by:

flush in interface Flushable

Overrides:

flush in class OutputStream

Throws:

IOException

write

public void write(int b)
           throws IOException

Writes the specified byte to this output stream. The general contract for write is that one byte is written to the output stream. The byte to be written is the eight low-order bits of the argument b. The 24 high-order bits of b are ignored. This single byte will travel on command stream

Specified by:

write in class OutputStream

Throws:

IOException

write

public void write(byte[] b)
           throws IOException

Writes b.length bytes from the specified byte array to this output stream. The general contract for write(b) is that it should have exactly the same effect as the call write(b, 0, b.length). This is a parallel write.

Overrides:

write in class OutputStream

Throws:

IOException

write

public void write(byte[] b,
                  int off,
                  int len)
           throws IOException

Writes len bytes from the specified byte array starting at offset off to this output stream. The general contract for write(b, off, len) is that some of the bytes in the array b are written to the output stream in order; element b[off] is the first byte written and b[off+len-1] is the last byte written by this operation. If b is null, a NullPointerException is thrown. If off is negative, or len is negative, or off+len is greater than the length of the array b, then an IndexOutOfBoundsException is thrown. This is a parallel write.

Overrides:

write in class OutputStream

Parameters:

b - - the data.

off - - the start offset in the data.

len - - the number of bytes to write.

Throws:

IOException

writeParallel

protected void writeParallel(byte[] b,
                             int off,
                             int len)
                      throws IOException

Throws:

IOException

writeSingleThreaded

protected void writeSingleThreaded(byte[] b,
                                   int off,
                                   int len)
                            throws IOException

Throws:

IOException

getSeq

public int getSeq()

Return sequence number.