com.antelmann.io
Class ReplaceInputStream

java.lang.Object
  java.io.InputStream
      com.antelmann.io.InterceptInputStream
          com.antelmann.io.ReplaceInputStream

All Implemented Interfaces:

InterceptInputStream.Handler, Closeable

public class ReplaceInputStream
extends InterceptInputStream
implements InterceptInputStream.Handler

This specialized stream replaces all occurrences of a given byte pattern with another throughout the stream. Also, this class can easily be overwritten to e.g. only replace only the first or every second occurrence or the alike.

Author:

Holger Antelmann

Nested Class Summary

Nested classes/interfaces inherited from class com.antelmann.io.InterceptInputStream

InterceptInputStream.Handler

Constructor Summary

ReplaceInputStream(InputStream in, byte[] searchPattern, byte[] replacePattern)

Method Summary

int	getReplacementCount() returns the number of replacements so far
void	patternFound(InterceptInputStream stream, byte[] pattern) only used internally (implementing InterceptInputStream.Handler); skips the pattern length from the stream and inserts the replacementPattern

Methods inherited from class com.antelmann.io.InterceptInputStream

addHandler, checkForMatch, close, insertBytes, markSupported, read, readSoFar, reset, skip

Methods inherited from class java.io.InputStream

available, mark, read, read

Methods inherited from class java.lang.Object

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

Constructor Detail

ReplaceInputStream

public ReplaceInputStream(InputStream in,
                          byte[] searchPattern,
                          byte[] replacePattern)

Method Detail

getReplacementCount

public int getReplacementCount()

returns the number of replacements so far

patternFound

public void patternFound(InterceptInputStream stream,
                         byte[] pattern)
                  throws IOException

only used internally (implementing InterceptInputStream.Handler); skips the pattern length from the stream and inserts the replacementPattern

Specified by:

patternFound in interface InterceptInputStream.Handler

Throws:

IOException