org.jasig.portal.utils
Class SubstitutionServletOutputStream

java.lang.Object
  java.io.OutputStream
      javax.servlet.ServletOutputStream
          org.jasig.portal.utils.SubstitutionServletOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable

public class SubstitutionServletOutputStream
extends javax.servlet.ServletOutputStream

A filter presenting a ServletOutputStream that performs word substitution (search&replace) on the fly. 7/25/05 - UP-1180 - dmindler@rutgers.edu Modified to make use of optimized SubstitutionIntegerFilter

Version:

$Revision: 1.6.4.1 $

Author:

Peter Kharchenko

Field Summary

(package private) SubstitutionIntegerFilter

filter

Constructor Summary

SubstitutionServletOutputStream(javax.servlet.ServletOutputStream out, byte[] target, byte[] substitute)
Creates a new SubstitutionServletOutputStream instance.

SubstitutionServletOutputStream(javax.servlet.ServletOutputStream out, byte[] target, byte[] substitute, int bufferSize)
Creates a new SubstitutionServletOutputStream instance.

Method Summary

void	close()
void	flush()
private static char[]	getCharArrayFromByteArray(byte[] c) A helper method to convert byte array to int array.
void	write(int i)

Methods inherited from class javax.servlet.ServletOutputStream

print, print, print, print, print, print, print, println, println, println, println, println, println, println, println

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

Field Detail

filter

SubstitutionIntegerFilter filter

Constructor Detail

SubstitutionServletOutputStream

public SubstitutionServletOutputStream(javax.servlet.ServletOutputStream out,
                                       byte[] target,
                                       byte[] substitute)

Creates a new SubstitutionServletOutputStream instance.

Parameters:

out - a true ServletOutputStream value where processed stream should be directed

target - a byte[] value of a target to be replaced

substitute - a byte[] value with which the target will be replaced

SubstitutionServletOutputStream

public SubstitutionServletOutputStream(javax.servlet.ServletOutputStream out,
                                       byte[] target,
                                       byte[] substitute,
                                       int bufferSize)

Creates a new SubstitutionServletOutputStream instance.

Parameters:

out - a true ServletOutputStream value where processed stream should be directed

target - a byte[] value of a target to be replaced

substitute - a byte[] value with which the target will be replaced

bufferSize - a buffer size

Method Detail

write

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

Specified by:

write in class java.io.OutputStream

Throws:

java.io.IOException

flush

public void flush()
           throws java.io.IOException

Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class java.io.OutputStream

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.OutputStream

Throws:

java.io.IOException

getCharArrayFromByteArray

private static char[] getCharArrayFromByteArray(byte[] c)

A helper method to convert byte array to int array. I am sure there's a way to cast it correctly, but I don't want to take my chances :)

Parameters:

c - a byte[] value

Returns:

an int[] value