net.sf.mmm.util.io.base
Class EscapeWriter

java.lang.Object
  java.io.Writer
      net.sf.mmm.util.io.base.EscapeWriter

All Implemented Interfaces:

Closeable, Flushable, Appendable

public class EscapeWriter
extends Writer

This is a wrapper for a writer that allows to map specific characters to a escape sequences given a strings.
The mapping table for escaping is given as string array.

Since:

1.1.0

Author:

Joerg Hohwiller (hohwille at users.sourceforge.net)

See Also:

EscapeWriter(Object, String[], Writer)

Field Summary

private String[]	characterEscapingTable A table that maps chars (as index) to escape sequences.
private Writer	writer the actual writer

Fields inherited from class java.io.Writer

lock

Constructor Summary

EscapeWriter(Object syncLock, String[] charEscapeTable, Writer plainWriter)
The constructor.

EscapeWriter(String[] charEscapeTable, Writer plainWriter)
The constructor.

Method Summary

void	close()
void	flush()
void	write(char[] cbuf, int off, int len)

Methods inherited from class java.io.Writer

append, append, append, write, write, write, write

Methods inherited from class java.lang.Object

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

Field Detail

characterEscapingTable

private final String[] characterEscapingTable

A table that maps chars (as index) to escape sequences.

writer

private final Writer writer

the actual writer

Constructor Detail

EscapeWriter

public EscapeWriter(String[] charEscapeTable,
                    Writer plainWriter)

The constructor.

Parameters:

charEscapeTable - is a String array that maps characters by to escape sequences. If the numeric representation of a character is a legal index for the given array and the String at that index is null that string is written instead of the character. In all other cases, the character is written without change.

plainWriter - is the writer that is wrapped.

See Also:

EscapeWriter(Object, String[], Writer)

EscapeWriter

public EscapeWriter(Object syncLock,
                    String[] charEscapeTable,
                    Writer plainWriter)

The constructor.

Parameters:

syncLock - is an explicit lock object used for synchronization (see Writer.Writer(java.lang.Object)).

charEscapeTable - is a String array that maps characters by to escape sequences. If the numeric representation of a character is a legal index for the given array and the String at that index is NOT null that string is written instead of the character. In all other cases, the character is written without change.

plainWriter - is the writer that is wrapped.

Method Detail

write

public void write(char[] cbuf,
                  int off,
                  int len)
           throws IOException

Specified by:

write in class Writer

Throws:

IOException

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Specified by:

flush in class Writer

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in class Writer

Throws:

IOException