com.isti.util
Class LineProcOutputStream

java.lang.Object
  java.io.OutputStream
      com.isti.util.LineProcOutputStream

All Implemented Interfaces:

CallBackStringParam, java.io.Closeable, java.io.Flushable

Direct Known Subclasses:

LogOutputStream

public abstract class LineProcOutputStream
extends java.io.OutputStream
implements CallBackStringParam

Title: LineProcOutputStream

Description: Abstract class that can be dropped in, in place of any OutputStream class (stdout for example), to handle character-stream data as lines. A user-supplied call-back method is handed one line of data at a time.

Author:

Hal Schechner 7/9/2003 -- [ET] Modified 'flush()' to only execute "call-back" method if buffer contains data; various minor modifications.

Field Summary

protected java.lang.String	EOL String defining what newline char(s) looks like.
protected int	EOL_LEN Length of newline char(s).
protected java.lang.StringBuffer	lineBuffer Where we keep the current line.

Constructor Summary

LineProcOutputStream()

Method Summary

void	flush() Send buffer content to call-back method (if not empty).
void	write(int ch) Enters the given character into the output stream.

Methods inherited from class java.io.OutputStream

close, write, write

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.isti.util.CallBackStringParam

callBackMethod

Field Detail

lineBuffer

protected final java.lang.StringBuffer lineBuffer

Where we keep the current line.

EOL

protected final java.lang.String EOL

String defining what newline char(s) looks like.

See Also:

Constant Field Values

EOL_LEN

protected final int EOL_LEN

Length of newline char(s).

Constructor Detail

LineProcOutputStream

public LineProcOutputStream()

Method Detail

write

public void write(int ch)

Enters the given character into the output stream. The characters are buffered until a newline ('\n') character is encountered; then the entire line of characters (including the newline) is sent to the call-back method.

Specified by:

write in class java.io.OutputStream

Parameters:

ch - the character to enter.

flush

public void flush()

Send buffer content to call-back method (if not empty).

Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class java.io.OutputStream