/*
* Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 in the LICENSE file that
* accompanied this code).
*
* 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.awt;
import java.nio.CharBuffer;
import java.nio.ByteBuffer;
import java.nio.charset.*;
//This class delegates all invokes to the charset "javaCs" if
//its subclasses do not provide their own en/decode solution.
public class AWTCharset extends Charset {
protected Charset awtCs;
protected Charset javaCs;
public AWTCharset(String awtCsName, Charset javaCs) {
super(awtCsName, null);
this.javaCs = javaCs;
this.awtCs = this;
}
public boolean contains(Charset cs) {
if (javaCs == null) return false;
return javaCs.contains(cs);
}
public CharsetEncoder newEncoder() {
if (javaCs == null)
throw new Error("Encoder is not supported by this Charset");
return new Encoder(javaCs.newEncoder());
}
public CharsetDecoder newDecoder() {
if (javaCs == null)
throw new Error("Decoder is not supported by this Charset");
return new Decoder(javaCs.newDecoder());
}
public class Encoder extends CharsetEncoder {
protected CharsetEncoder enc;
protected Encoder () {
this(javaCs.newEncoder());
}
protected Encoder (CharsetEncoder enc) {
super(awtCs,
enc.averageBytesPerChar(),
enc.maxBytesPerChar());
this.enc = enc;
}
public boolean canEncode(char c) {
return enc.canEncode(c);
}
public boolean canEncode(CharSequence cs) {
return enc.canEncode(cs);
}
protected CoderResult encodeLoop(CharBuffer src, ByteBuffer dst) {
return enc.encode(src, dst, true);
}
protected CoderResult implFlush(ByteBuffer out) {
return enc.flush(out);
}
protected void implReset() {
enc.reset();
}
protected void implReplaceWith(byte[] newReplacement) {
if (enc != null)
enc.replaceWith(newReplacement);
}
protected void implOnMalformedInput(CodingErrorAction newAction) {
enc.onMalformedInput(newAction);
}
protected void implOnUnmappableCharacter(CodingErrorAction newAction) {
enc.onUnmappableCharacter(newAction);
}
public boolean isLegalReplacement(byte[] repl) {
return true;
}
}
public class Decoder extends CharsetDecoder {
protected CharsetDecoder dec;
private String nr;
protected Decoder () {
this(javaCs.newDecoder());
}
protected Decoder (CharsetDecoder dec) {
super(awtCs,
dec.averageCharsPerByte(),
dec.maxCharsPerByte());
this.dec = dec;
}
protected CoderResult decodeLoop(ByteBuffer src, CharBuffer dst) {
return dec.decode(src, dst, true);
}
ByteBuffer fbb = ByteBuffer.allocate(0);
protected CoderResult implFlush(CharBuffer out) {
dec.decode(fbb, out, true);
return dec.flush(out);
}
protected void implReset() {
dec.reset();
}
protected void implReplaceWith(String newReplacement) {
if (dec != null)
dec.replaceWith(newReplacement);
}
protected void implOnMalformedInput(CodingErrorAction newAction) {
dec.onMalformedInput(newAction);
}
protected void implOnUnmappableCharacter(CodingErrorAction newAction) {
dec.onUnmappableCharacter(newAction);
}
}
}