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

            ByteBuffer target = ByteBuffer.allocate(30);
            ByteBuffer expected = null;
            try {
                encoder.onUnmappableCharacter(CodingErrorAction.IGNORE);
                encoder.onMalformedInput(CodingErrorAction.IGNORE);
                expected = encoder.encode(CharBuffer.wrap(ext + lead + trail + ext + norm));
                encoder.reset();
            } catch (CharacterCodingException ex) {
                errln("Unexpected CharacterCodingException: " + ex.getMessage());
                return;
            } catch (RuntimeException ex) {

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            encoder.onUnmappableCharacter(CodingErrorAction.REPORT);
            encoder.onMalformedInput(CodingErrorAction.REPORT);
            for (int i=0; i<n; i++) {
                source.limit(i+1);
                cr = encoder.encode(source, target, i == n - 1);
                if (!(equals(cr, results[i])
                        || (results[i].isUnmappable() && cr.isUnderflow()) // mappability depends on the converter
                    )) {
                    if (!currentlybad) {currentlybad = true; badcount++; logln(""); }
                    if (results[i].isMalformed() && cr.isMalformed()) {

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    }
    public void TestUTF8Encode() {
        CharsetEncoder encoderICU = new CharsetProviderICU().charsetForName("utf-8").newEncoder();
        ByteBuffer out = ByteBuffer.allocate(30);
        CoderResult result = encoderICU.encode(CharBuffer.wrap("\ud800"), out, true);
        
        if (result.isMalformed()) {
            logln("\\ud800 is malformed for ICU4JNI utf-8 encoder");
        } else if (result.isUnderflow()) {
            errln("\\ud800 is OK for ICU4JNI utf-8 encoder");

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        } else if (result.isUnderflow()) {
            errln("\\ud800 is OK for ICU4JNI utf-8 encoder");
        }


        CharsetEncoder encoderJDK = Charset.forName("utf-8").newEncoder();
        result = encoderJDK.encode(CharBuffer.wrap("\ud800"), ByteBuffer
                .allocate(10), true);
        if (result.isUnderflow()) {
            errln("\\ud800 is OK for JDK utf-8 encoder");
        } else if (result.isMalformed()) {
            logln("\\ud800 is malformed for JDK utf-8 encoder");

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    }
*/
    public void TestUTF8() throws CharacterCodingException{
           try{
               CharsetEncoder encoderICU = new CharsetProviderICU().charsetForName("utf-8").newEncoder();
               encoderICU.encode(CharBuffer.wrap("\ud800"));
               errln("\\ud800 is OK for ICU4JNI utf-8 encoder");
           }catch (Exception e) {
               logln("\\ud800 is malformed for JDK utf-8 encoder");
              //e.printStackTrace();
           }

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              //e.printStackTrace();
           }
           
           CharsetEncoder encoderJDK = Charset.forName("utf-8").newEncoder();
           try {
               encoderJDK.encode(CharBuffer.wrap("\ud800"));
               errln("\\ud800 is OK for JDK utf-8 encoder");
           } catch (Exception e) {
               logln("\\ud800 is malformed for JDK utf-8 encoder");
               //e.printStackTrace();
           }

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        CharBuffer inBuf = CharBuffer.allocate(in.length);
        inBuf.put(in);
        CharsetEncoder encoder = cs.newEncoder();
        ByteBuffer outBuf = ByteBuffer.allocate(in.length*2+2);
        inBuf.rewind();
        encoder.encode(inBuf, outBuf, true);
        outBuf.rewind();
        if(outBuf.get(0)!= (byte)0xFE && outBuf.get(1)!= (byte)0xFF){
            errln("The UTF16 encoder did not appended bom. Length returned: " + outBuf.remaining());
        }
        while(outBuf.hasRemaining()){

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        {
            // Encoder: from Unicode conversion
            CharsetEncoder encoderICU = new CharsetProviderICU().charsetForName("ibm-971").newEncoder();
            ByteBuffer out = ByteBuffer.allocate(6);
            encoderICU.onUnmappableCharacter(CodingErrorAction.REPLACE);
            CoderResult result = encoderICU.encode(CharBuffer.wrap("\u0131\u0061\u00a1"), out, true);
            if(!result.isError()){
                byte[] expected = {(byte)0xA9, (byte)0xA5, (byte)0xAF, (byte)0xFE, (byte)0xA2, (byte)0xAE};
                if(!equals(expected, out.array())){
                    errln("Did not get the expected result for substitution bytes. Got: "+
                           hex(out.array()));

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    private void execEncoder(Charset cs){
        CharsetEncoder encoder = cs.newEncoder();
        encoder.onMalformedInput(CodingErrorAction.REPORT);
        encoder.onUnmappableCharacter(CodingErrorAction.REPORT);
        ByteBuffer out = ByteBuffer.allocate(10);
        CoderResult result = encoder.encode(CharBuffer.wrap(new char[] { '\uFFFF',
                '\u2345', 32, 98 }), out, false);
        logln(cs.getClass().toString()+ ":" +result.toString());
        result = encoder.encode(CharBuffer.wrap(new char[] { 98 }), out, true);


        logln(cs.getClass().toString()+ ":" +result.toString());

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        encoder.onUnmappableCharacter(CodingErrorAction.REPORT);
        ByteBuffer out = ByteBuffer.allocate(10);
        CoderResult result = encoder.encode(CharBuffer.wrap(new char[] { '\uFFFF',
                '\u2345', 32, 98 }), out, false);
        logln(cs.getClass().toString()+ ":" +result.toString());
        result = encoder.encode(CharBuffer.wrap(new char[] { 98 }), out, true);


        logln(cs.getClass().toString()+ ":" +result.toString());
        try {
            result = encoder.flush(out);
            logln(cs.getClass().toString()+ ":" +result.toString());

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