/*
*
*
* Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package com.sun.cdc.i18n.j2me;
import java.io.Writer;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.io.IOException;
/**
* Writer for UTF-16 encoded output streams (default byte order).
* We assume that character strings
* are correctly converted to UFT-16, so no additional checking is performed.
*/
/* IMPL_NOTE: we need this class name because it is a part of
* an internal interface: encoding name is converted into a class name,
* and then Class.forName() is performed.
*/
public class UTF_16_Writer extends UTF_16BE_Writer {
// Just extending the right class for the default byte order
// To change the default encoding you need to change the base class
/**
* Gets set to true after writing byte order mark (BOM), BOM is 0xfeff.
*/
protected boolean addedBOM;
static final char[] bom = new char[] {0xfeff};
/**
* Write a portion of an array of characters.
*
* @param cbuf Array of characters
* @param off Offset from which to start writing characters
* @param len Number of characters to write
*
* @exception java.io.IOException If an I/O error occurs
*/
public void write(char cbuf[], int off, int len) throws IOException {
if (!addedBOM) {
super.write(bom,0,1);
addedBOM=true;
}
super.write(cbuf,off,len);
}
/**
* Get the size in bytes of an array of chars.
*
* @param array Source buffer
* @param offset Offset at which to start counting character sizes
* @param length number of bytes to use for counting
*
* @return number of bytes that the characters would be converted to
*/
/* The class Helper will ask the writer for the size the output will be.
* Since chars already are in utf16, calculation is simple. */
public int sizeOf(char[] array, int offset, int length) {
// add the size of BOM
return super.sizeOf(array,offset,length) + 2;
}
/**
* Open the writer
*/
public Writer open(OutputStream out, String enc)
throws UnsupportedEncodingException {
super.open(out,enc);
addedBOM = false;
return this;
}
}
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