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

            encoder.onMalformedInput(CodingErrorAction.REPLACE);
            encoder.onUnmappableCharacter(CodingErrorAction.REPORT);
            InputStream stream;
            try {
                byte[] bytes;
                ByteBuffer byteBuffer = encoder.encode(CharBuffer
                        .wrap(document.get()));
                if (byteBuffer.hasArray())
                    bytes = byteBuffer.array();
                else {
                    bytes = new byte[byteBuffer.limit()];

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   * @param char_encoding is the character encoding
   */
  public IOBuffer(String str, String char_encoding)
    throws CharacterCodingException {
    CharsetEncoder encoder = Charset.forName(char_encoding).newEncoder();
    read_buf_ = encoder.encode(CharBuffer.wrap(str));
  }


  // Replaces unmappable characters when encoding with non-UTF-8 charsets.
  private static final String BAD_INPUT_REPLACEMENT = "?";

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   * @param char_encoding is the character encoding
   */
  public IOBuffer(String str, String char_encoding)
    throws CharacterCodingException {
    CharsetEncoder encoder = Charset.forName(char_encoding).newEncoder();
    read_buf_ = encoder.encode(CharBuffer.wrap(str));
  }


  // Replaces unmappable characters when encoding with non-UTF-8 charsets.
  private static final String BAD_INPUT_REPLACEMENT = "?";

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            ByteBuffer buf = ByteBuffer.wrap(str.getUnsafeBytes(), str.begin(), str.length());


            try {
                CharBuffer cbuf = decoder.decode(buf);
                encoder.onUnmappableCharacter(java.nio.charset.CodingErrorAction.IGNORE);
                buf = encoder.encode(cbuf);
            } catch (CharacterCodingException e) {
                throw context.getRuntime().newArgumentError("invalid encoding");
            }
            byte[] arr = buf.array();
            ByteList r = new ByteList(arr, 0, buf.limit());

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      CharBuffer cbuf = CharBuffer.allocate(1);
      ByteBuffer bbuf = ByteBuffer.allocate(1);


      cbuf.put("\u00a5");
      cbuf.position(0);
      enc.encode(cbuf, bbuf, true);
      if(bbuf.get(0) == '\\') {
        requiresEscapingEncoder = true;
      } else {
        cbuf.clear();
        bbuf.clear();

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        cbuf.clear();
        bbuf.clear();
        
        cbuf.put("\u20a9");
        cbuf.position(0);
        enc.encode(cbuf, bbuf, true);
        if(bbuf.get(0) == '\\') {
          requiresEscapingEncoder = true;
        }
      }
    } catch(java.nio.charset.UnsupportedCharsetException ucex) {

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        Charset to = lookupCharsetFor(runtime, toEncoding, fromEncoding.toString(), toEncoding.toString());
        CharsetEncoder encoder = getCharsetEncoder(context, runtime, to, opts);
        ByteBuffer fromBytes = ByteBuffer.wrap(value.getUnsafeBytes(), value.begin(), value.length());
        
        try {
            ByteBuffer toBytes = encoder.encode(from.decode(fromBytes));


            // CharsetEncoder#encode guarantees a newly-allocated buffer, so no need to copy.
            return new ByteList(toBytes.array(), toBytes.arrayOffset(),
                    toBytes.limit() - toBytes.arrayOffset(), toEncoding, false);
        } catch (CharacterCodingException e) {

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    Charset charset = Charset.forName("ISO-8859-1");
      CharsetDecoder decoder = charset.newDecoder();
      CharsetEncoder encoder = charset.newEncoder();      
      try {
          ByteBuffer bbuf = encoder.encode(CharBuffer.wrap(s));
          CharBuffer cbuf = decoder.decode(bbuf);
          return cbuf.toString();
      } catch (CharacterCodingException e) {
        s = s.replaceAll("[^A-Za-z0-9_+-]", "_");
        try {

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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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        byte[] ba = new byte[len];
        if (len == 0)
            return ba;
        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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