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/*
* Copyright © 2017-2018 Constantin Roganov
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
* and associated documentation files (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge, publish, distribute,
* sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package threegpp.charset;
import threegpp.charset.gsm.GSMCharset;
import threegpp.charset.ucs2.UCS2Charset80;
import threegpp.charset.ucs2.UCS2Charset81;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CharsetEncoder;
/**
* A {@link Charset} implementation which is able to decode bytes in one of encodings listed below:
*
* - GSM 7 Bit
*
- UCS2 with tag 0x80
*
- UCS2 with tag 0x81
*
*
* This {@link Charset} supports decoding only.
*
* Text charset name: X-GSM-UCS2
* Name aliases: ANY-TELECOM, TELECOM, GSM-OR-UCS2
*/
public class TelecomCharset extends Charset {
private static final String CANONICAL_NAME = "X-GSM-UCS2";
private static final String [] ALIASES = {"ANY-TELECOM", "TELECOM", "GSM-OR-UCS2"};
public TelecomCharset() {
super(CANONICAL_NAME, ALIASES);
}
@Override
public boolean contains(Charset cs) {
return cs instanceof GSMCharset || cs instanceof UCS2Charset80 ||
cs instanceof UCS2Charset81 || cs instanceof TelecomCharset;
}
@Override
public CharsetDecoder newDecoder() {
return new TelecomCharsetDecoder(this);
}
@Override
public CharsetEncoder newEncoder() {
throw new UnsupportedOperationException();
}
@Override
public boolean canEncode() {
return false;
}
}