static String decodeString(ByteBuffer src, Charset charset) {
final CharsetDecoder decoder = CharsetUtil.getDecoder(charset);
final CharBuffer dst =
CharBuffer.allocate((int) ((double) src.remaining() * decoder.maxCharsPerByte()));
try {
CoderResult cr = decoder.decode(src, dst, true);
if (!cr.isUnderflow()) {
cr.throwException();
}
cr = decoder.flush(dst);
if (!cr.isUnderflow()) {
cr.throwException();
}
} catch (CharacterCodingException x) {
throw new IllegalStateException(x);
}
return dst.flip().toString();
}
static ByteBuffer encodeString(CharBuffer src, Charset charset) {
final CharsetEncoder encoder = CharsetUtil.getEncoder(charset);
final ByteBuffer dst =
ByteBuffer.allocate((int) ((double) src.remaining() * encoder.maxBytesPerChar()));
try {
CoderResult cr = encoder.encode(src, dst, true);
if (!cr.isUnderflow()) {
cr.throwException();
}
cr = encoder.flush(dst);
if (!cr.isUnderflow()) {
cr.throwException();
}
} catch (CharacterCodingException x) {
throw new IllegalStateException(x);
}
dst.flip();
return dst;
}
@Override
public String toUtf8() {
if (!buffer.hasRemaining()) {
return "";
}
final CharsetDecoder decoder = CharsetUtil.getDecoder(Charsets.UTF_8);
final CharBuffer dst =
CharBuffer.allocate((int) ((double) buffer.remaining() * decoder.maxCharsPerByte()));
try {
CoderResult cr = decoder.decode(buffer, dst, true);
if (!cr.isUnderflow()) {
cr.throwException();
}
cr = decoder.flush(dst);
if (!cr.isUnderflow()) {
cr.throwException();
}
} catch (CharacterCodingException x) {
throw new IllegalStateException(x);
}
return dst.flip().toString();
}