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

java.nio.charset.CharsetEncoder.onUnmappableCharacter()
Set this encoder's action on unmappable character error. This method will call the {@link #implOnUnmappableCharacter(CodingErrorAction) implOnUnmappableCharacter}method with the given new action as argument. @param newAction the new action on unmappable character error @return this encoder @throws IllegalArgumentException if the given newAction is null

    }
    ByteBuffer bytes = 
      encoder.encode(CharBuffer.wrap(string.toCharArray()));
    if (replace) {
      encoder.onMalformedInput(CodingErrorAction.REPORT);
      encoder.onUnmappableCharacter(CodingErrorAction.REPORT);
    }
    return bytes;
  }


  static final public int DEFAULT_MAX_LEN = 1024 * 1024;

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                    chardecoder = charset.newDecoder();
                    chardecoder.onMalformedInput(malformedInputAction);
                    chardecoder.onUnmappableCharacter(unmappableInputAction);
                    charencoder = charset.newEncoder();
                    charencoder.onMalformedInput(malformedInputAction);
                    charencoder.onUnmappableCharacter(unmappableInputAction);
                }
                return new RecordingHttpClientConnection(DEFAULT_BUFSIZE,
                        DEFAULT_BUFSIZE, chardecoder, charencoder,
                        cconfig.getMessageConstraints(), null, null,
                        DefaultHttpRequestWriterFactory.INSTANCE,

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    // Create the encoder and decoder for the character encoding
    Charset charset = Charset.forName("US-ASCII");
    CharsetDecoder decoder = charset.newDecoder();
    CharsetEncoder encoder = charset.newEncoder();
    // This line is the key to removing "unmappable" characters.
    encoder.onUnmappableCharacter(CodingErrorAction.IGNORE);
    String result = inString;


    // Convert a string to bytes in a ByteBuffer
    ByteBuffer bbuf = encoder.encode(CharBuffer.wrap(inString));

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    @Test(expected=CharacterCodingException.class)
    public void testUnmappableInputActionReport() throws Exception {
        final String s = "This text contains a circumflex \u0302!!!";
        final CharsetEncoder encoder = Consts.ISO_8859_1.newEncoder();
        encoder.onMalformedInput(CodingErrorAction.IGNORE);
        encoder.onUnmappableCharacter(CodingErrorAction.REPORT);
        final SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 16, encoder, this.allocator);
        outbuf.writeLine(s);
    }


    @Test

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    @Test
    public void testUnmappableInputActionIgnore() throws Exception {
        final String s = "This text contains a circumflex \u0302!!!";
        final CharsetEncoder encoder = Consts.ISO_8859_1.newEncoder();
        encoder.onMalformedInput(CodingErrorAction.IGNORE);
        encoder.onUnmappableCharacter(CodingErrorAction.IGNORE);
        final SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 16, encoder, this.allocator);
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final WritableByteChannel channel = newChannel(baos);
        outbuf.writeLine(s);
        outbuf.flush(channel);

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    @Test
    public void testUnmappableInputActionReplace() throws Exception {
        final String s = "This text contains a circumflex \u0302 !!!";
        final CharsetEncoder encoder = Consts.ISO_8859_1.newEncoder();
        encoder.onMalformedInput(CodingErrorAction.IGNORE);
        encoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
        final SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 16, encoder, this.allocator);
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final WritableByteChannel channel = newChannel(baos);
        outbuf.writeLine(s);
        outbuf.flush(channel);

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  public static ByteBuffer encode(String string, boolean replace)
    throws CharacterCodingException {
    CharsetEncoder encoder = ENCODER_FACTORY.get();
    if (replace) {
      encoder.onMalformedInput(CodingErrorAction.REPLACE);
      encoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
    }
    ByteBuffer bytes = 
      encoder.encode(CharBuffer.wrap(string.toCharArray()));
    if (replace) {
      encoder.onMalformedInput(CodingErrorAction.REPORT);

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    }
    ByteBuffer bytes = 
      encoder.encode(CharBuffer.wrap(string.toCharArray()));
    if (replace) {
      encoder.onMalformedInput(CodingErrorAction.REPORT);
      encoder.onUnmappableCharacter(CodingErrorAction.REPORT);
    }
    return bytes;
  }


  /** Read a UTF8 encoded string from in

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    @Test(expected=CharacterCodingException.class)
    public void testUnmappableInputActionReport() throws Exception {
        final String s = "This text contains a circumflex \u0302 !!!";
        final CharsetEncoder encoder = Consts.ISO_8859_1.newEncoder();
        encoder.onMalformedInput(CodingErrorAction.IGNORE);
        encoder.onUnmappableCharacter(CodingErrorAction.REPORT);
        final SessionOutputBufferMock outbuf = new SessionOutputBufferMock(encoder);
        outbuf.writeLine(s);
    }


    @Test

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    @Test
    public void testUnmappableInputActionReplace() throws Exception {
        final String s = "This text contains a circumflex \u0302 !!!";
        final CharsetEncoder encoder = Consts.ISO_8859_1.newEncoder();
        encoder.onMalformedInput(CodingErrorAction.IGNORE);
        encoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
        final SessionOutputBufferMock outbuf = new SessionOutputBufferMock(encoder);
        outbuf.writeLine(s);
        outbuf.flush();
        final String result = new String(outbuf.getData(), "ISO-8859-1");
        Assert.assertEquals("This text contains a circumflex ? !!!\r\n", result);

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