com.sun.javatest.util
Class WriterStream

java.lang.Object
  java.io.OutputStream
      com.sun.javatest.util.WriterStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable

public class WriterStream
extends java.io.OutputStream

Note: this class should be JDK 1.1 compatible

Constructor Summary

WriterStream(java.io.Writer w)
Create a stream that writes to a writer.

WriterStream(java.io.Writer w, java.lang.String charsetName)
Create a stream that writes to a writer.

Method Summary

void	close() We override default implementation to write last characters, which could be lost in buffer otherwise.
void	flush() Flush the stream.
void	write(int b) OutputStream's implementation.

Methods inherited from class java.io.OutputStream

write, write

Methods inherited from class java.lang.Object

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

Constructor Detail

WriterStream

public WriterStream(java.io.Writer w)

Create a stream that writes to a writer.

Parameters:

w - the writer

WriterStream

public WriterStream(java.io.Writer w,
                    java.lang.String charsetName)

Create a stream that writes to a writer.

Parameters:

w - the writer

charsetName - name of encoding to be used when decode byte stream (instead of default one)

Method Detail

flush

public void flush()
           throws java.io.IOException

Flush the stream.

Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class java.io.OutputStream

Throws:

java.io.IOException - if an I/O error occurs

close

public void close()
           throws java.io.IOException

We override default implementation to write last characters, which could be lost in buffer otherwise.

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.OutputStream

Throws:

java.io.IOException

write

public void write(int b)
           throws java.io.IOException

OutputStream's implementation. Our goal is to convert encoded byte stream form OutputStream to char stream, which can be written using specified writer. We perform this by collecting bytes in buffer and checking with PERIOD_SIZE interval if this buffer represents some char sequence. If so, we write to writer all chars, except last one. We don't write last char, because there still not enough bytes could be collected for it.

Specified by:

write in class java.io.OutputStream

Parameters:

b - next byte from OutputStream to write.

Throws:

java.io.IOException