de.unkrig.commons.file.filetransformation
Class FileContentsTransformer

java.lang.Object
  de.unkrig.commons.file.filetransformation.FileContentsTransformer

All Implemented Interfaces:

FileTransformer

public class FileContentsTransformer
extends java.lang.Object
implements FileTransformer

A FileTransformer that transforms a file be feeding its contents through a ContentsTransformer.

Nested Class Summary

Nested classes/interfaces inherited from interface de.unkrig.commons.file.filetransformation.FileTransformer

FileTransformer.Mode

Field Summary

Fields inherited from interface de.unkrig.commons.file.filetransformation.FileTransformer

NOT_IDENTICAL, THROW_NOT_IDENTICAL

Constructor Summary

FileContentsTransformer(ContentsTransformer contentsTransformer, boolean keepOriginals)

Method Summary

static void	checkIdentity(java.lang.String path, java.io.InputStream inputStream, ContentsTransformer contentsTransformer) Consumes the inputStream and feeds it through the contentsTransformer.
void	transform(java.lang.String path, java.io.File in, java.io.File out, FileTransformer.Mode mode) Opens the in file for reading, opens the out file for writing, reads the contents, feeds it through the given ContentsTransformer, and writes it to the out file.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileContentsTransformer

public FileContentsTransformer(ContentsTransformer contentsTransformer,
                               boolean keepOriginals)

Method Detail

transform

public void transform(java.lang.String path,
                      java.io.File in,
                      java.io.File out,
                      FileTransformer.Mode mode)
               throws java.io.IOException

Opens the in file for reading, opens the out file for writing, reads the contents, feeds it through the given ContentsTransformer, and writes it to the out file.

Specified by:

transform in interface FileTransformer

Parameters:

path - A text designating the input file; typically, but not necessarily identical with in.getPath()

Throws:

java.io.IOException

See Also:

FileTransformer.NOT_IDENTICAL, FileTransformer.Mode.TRANSFORM, FileTransformer.Mode.CHECK, FileTransformer.Mode.CHECK_AND_TRANSFORM

checkIdentity

public static void checkIdentity(java.lang.String path,
                                 java.io.InputStream inputStream,
                                 ContentsTransformer contentsTransformer)
                          throws java.io.IOException

Consumes the inputStream and feeds it through the contentsTransformer.

Throws:

java.lang.RuntimeException - FileTransformer.NOT_IDENTICAL iff the transformer contents differs from the original contents

java.io.IOException