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/*
* Copyright (c) 2015 Mozilla Foundation
*
* 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 nu.validator.encoding;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.Charset;
import java.nio.charset.CoderResult;
class ReplacementDecoder extends Decoder {
private boolean haveEmitted = false;
ReplacementDecoder(Charset cs) {
super(cs, 1.0f, 1.0f);
}
@Override protected CoderResult decodeLoop(ByteBuffer in, CharBuffer out) {
for (;;) {
if (!in.hasRemaining()) {
return CoderResult.UNDERFLOW;
}
if (haveEmitted) {
in.position(in.limit());
return CoderResult.UNDERFLOW;
}
if (!out.hasRemaining()) {
return CoderResult.OVERFLOW;
}
in.position(in.limit());
haveEmitted = true;
if (this.report) {
return CoderResult.malformedForLength(1);
}
out.put('\uFFFD');
}
}
/**
* @see java.nio.charset.CharsetDecoder#implFlush(java.nio.CharBuffer)
*/
@Override protected CoderResult implFlush(CharBuffer out) {
// TODO Auto-generated method stub
return super.implFlush(out);
}
/**
* @see java.nio.charset.CharsetDecoder#implReset()
*/
@Override protected void implReset() {
// TODO Auto-generated method stub
super.implReset();
}
}
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