Examples of java.nio.charset.CharsetEncoder.encode()

java.nio.charset.CharsetEncoder.encode()
This is a facade method for encoding operation.
This method encodes the remaning character sequence of the given character buffer into a new byte buffer. This method performs a complete encoding operation, resets at first, then encodes, and flushes at last.

This method should not be invoked if another encode operation is ongoing.
@param in the input buffer @return a new ByteBuffer containing the the bytes producedby this encoding operation. The buffer's limit will be the position of last byte in buffer, and the position will be zero @throws IllegalStateException if another encoding operation is ongoing @throws MalformedInputException if illegal input character sequence for this charset encountered, and the action for malformed error is {@link CodingErrorAction#REPORT CodingErrorAction.REPORT} @throws UnmappableCharacterException if legal but unmappable input character sequence for this charset encountered, and the action for unmappable character error is {@link CodingErrorAction#REPORT CodingErrorAction.REPORT}. Unmappable means the Unicode character sequence at the input buffer's current postion cannot be mapped to a equivalent byte sequence. @throws CharacterCodingException if other exception happened during the encode operation

    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()) {

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        try {
            Charset cc = Charset.forName(encoding);
            CharsetEncoder ce = cc.newEncoder();
            ce.onUnmappableCharacter(CodingErrorAction.IGNORE);
            CharBuffer cb = CharBuffer.wrap(text.toCharArray());
            java.nio.ByteBuffer bb = ce.encode(cb);
            bb.rewind();
            int lim = bb.limit();
            byte[] br = new byte[lim];
            bb.get(br);
            return br;

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        try {
            Charset cc = Charset.forName(encoding);
            CharsetEncoder ce = cc.newEncoder();
            ce.onUnmappableCharacter(CodingErrorAction.IGNORE);
            CharBuffer cb = CharBuffer.wrap(new char[]{char1});
            java.nio.ByteBuffer bb = ce.encode(cb);
            bb.rewind();
            int lim = bb.limit();
            byte[] br = new byte[lim];
            bb.get(br);
            return br;

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     */
    private void doWriteText(CharBuffer buffer, boolean finalFragment)
            throws IOException {
        CharsetEncoder encoder = B2CConverter.UTF_8.newEncoder();
        do {
            CoderResult cr = encoder.encode(buffer, bb, true);
            if (cr.isError()) {
                cr.throwException();
            }
            bb.flip();
            if (buffer.hasRemaining()) {

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            return safeTrim(ba, blen, cs, isTrusted);
        } else {
            ByteBuffer bb = ByteBuffer.wrap(ba);
            CharBuffer cb = CharBuffer.wrap(ca, off, len);
            try {
                CoderResult cr = ce.encode(cb, bb, true);
                if (!cr.isUnderflow())
                    cr.throwException();
                cr = ce.flush(bb);
                if (!cr.isUnderflow())
                    cr.throwException();

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                throw new IllegalArgumentException("MALFORMED");
            return Arrays.copyOf(ba, blen);
        }
        ByteBuffer bb = ByteBuffer.wrap(ba);
        CharBuffer cb = CharBuffer.wrap(ca);
        CoderResult cr = ce.encode(cb, bb, true);
        if (!cr.isUnderflow())
            throw new IllegalArgumentException(cr.toString());
        cr = ce.flush(bb);
        if (!cr.isUnderflow())
            throw new IllegalArgumentException(cr.toString());

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            return result;
        }


        encoder.reset();
        while (true) {
            CoderResult cr = buffer.hasRemaining() ? encoder.encode(buffer,
                    result, true) : encoder.flush(result);
            if (cr.isUnderflow()) {
                break;
            } else if (cr.isOverflow()) {
                n *= 2;

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        encoder.reset();


        Collection buffers = new ArrayList();
        while (true) {
            ByteBuffer out = ByteBuffer.allocate(bufferCapcity);
            CoderResult cr = encoder.encode(buffer, out, true);
            if (cr.isUnderflow()) {
                encoder.flush(out);
                out.flip();
                buffers.add(out);
                break;

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        try {
            Charset cc = Charset.forName(encoding);
            CharsetEncoder ce = cc.newEncoder();
            ce.onUnmappableCharacter(CodingErrorAction.IGNORE);
            CharBuffer cb = CharBuffer.wrap(text.toCharArray());
            java.nio.ByteBuffer bb = ce.encode(cb);
            bb.rewind();
            int lim = bb.limit();
            byte[] br = new byte[lim];
            bb.get(br);
            return br;

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        try {
            Charset cc = Charset.forName(encoding);
            CharsetEncoder ce = cc.newEncoder();
            ce.onUnmappableCharacter(CodingErrorAction.IGNORE);
            CharBuffer cb = CharBuffer.wrap(new char[]{char1});
            java.nio.ByteBuffer bb = ce.encode(cb);
            bb.rewind();
            int lim = bb.limit();
            byte[] br = new byte[lim];
            bb.get(br);
            return br;

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