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

java.nio.charset.CharsetEncoder.averageBytesPerChar()
get the average number of bytes created by this encoder for single input character @return the average number of bytes created by this encoder for singleinput character

        final Charset charSet = charsetForName(encoding);
        final CharsetEncoder encoder = charSet.newEncoder().onMalformedInput(
            CodingErrorAction.REPLACE).onUnmappableCharacter(
            CodingErrorAction.REPLACE);
        final float maxBytesPerChar     = encoder.maxBytesPerChar();
        final float averageBytesPerChar = encoder.averageBytesPerChar();
        final boolean fixedWidthCharset =
            (maxBytesPerChar == Math.round(maxBytesPerChar))
            && (maxBytesPerChar == averageBytesPerChar);


        //

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   * @see CharsetEncoder#encode(java.nio.CharBuffer)
   */
  private static ByteBuffer encode(final CharBuffer in, final Charset charset) {
    final CharsetEncoder encoder = charset.newEncoder(); // encoders are not thread-safe, create a new one on every call


    int n = (int)(in.remaining() * encoder.averageBytesPerChar());
    ByteBuffer out = BufferUtils.createByteBuffer(n);


    if ( n == 0 && in.remaining() == 0 )
      return out;

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        CharBuffer buffer = CharBuffer.wrap(sequence);
        CharsetEncoder encoder = getEncoder();


        int n = 0;
        if (buffer.remaining() > 0) {
            n = (int) (buffer.remaining() * encoder.averageBytesPerChar());
            if (n == 0) {
                n = (int) (buffer.remaining() * encoder.maxBytesPerChar());
            }
        }
        ByteBuffer result = ByteBuffer.allocate(n); // judge result length

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        final Charset charSet = charsetForName(encoding);
        final CharsetEncoder encoder = charSet.newEncoder().onMalformedInput(
            CodingErrorAction.REPLACE).onUnmappableCharacter(
            CodingErrorAction.REPLACE);
        final float maxBytesPerChar     = encoder.maxBytesPerChar();
        final float averageBytesPerChar = encoder.averageBytesPerChar();
        final boolean fixedWidthCharset =
            (maxBytesPerChar == Math.round(maxBytesPerChar))
            && (maxBytesPerChar == averageBytesPerChar);


        //

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        .onUnmappableCharacter(CodingErrorAction.IGNORE));


    // normal case
    CharsetEncoder ec = new MockCharsetEncoder(cs, 1, MAX_BYTES);
    assertSame(ec.charset(), cs);
    assertEquals(1.0, ec.averageBytesPerChar(), 0);
    assertTrue(ec.maxBytesPerChar() == MAX_BYTES);


    /*
     * ------------------------ Exceptional cases -------------------------
     */

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  public void testCharsetEncoderCharsetfloatfloatbyteArray() {
    byte[] ba = getLegalByteArray();
    // normal case
    CharsetEncoder ec = new MockCharsetEncoder(cs, 1, MAX_BYTES, ba);
    assertSame(ec.charset(), cs);
    assertEquals(1.0, ec.averageBytesPerChar(), 0.0);
    assertTrue(ec.maxBytesPerChar() == MAX_BYTES);
    assertSame(ba, ec.replacement());


    /*
     * ------------------------ Exceptional cases -------------------------

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        {
            String data = stringArg(args, 0);
            Charset charset = resolveEncoding(args, 1);
            CharsetEncoder encoder = Charsets.get().getEncoder(charset);


            if (encoder.averageBytesPerChar() == encoder.maxBytesPerChar()) {
                // Optimize for ASCII
                return Math.ceil(encoder.maxBytesPerChar() * data.length());
            }


            // Encode into a small temporary buffer to make counting easiest.

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        .onUnmappableCharacter(CodingErrorAction.IGNORE));


    // normal case
    CharsetEncoder ec = new MockCharsetEncoder(cs, 1, MAX_BYTES);
    assertSame(ec.charset(), cs);
    assertEquals(1.0, ec.averageBytesPerChar(), 0);
    assertTrue(ec.maxBytesPerChar() == MAX_BYTES);


    /*
     * ------------------------ Exceptional cases -------------------------
     */

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  public void testCharsetEncoderCharsetfloatfloatbyteArray() {
    byte[] ba = getLegalByteArray();
    // normal case
    CharsetEncoder ec = new MockCharsetEncoder(cs, 1, MAX_BYTES, ba);
    assertSame(ec.charset(), cs);
    assertEquals(1.0, ec.averageBytesPerChar(), 0.0);
    assertTrue(ec.maxBytesPerChar() == MAX_BYTES);
    assertSame(ba, ec.replacement());


    /*
     * ------------------------ Exceptional cases -------------------------

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    public ByteBuffer encode(CharBuffer buffer) {
        CharsetEncoder encoder = getEncoder();


        int n = 0;
        if (buffer.remaining() > 0) {
            n = (int) (buffer.remaining() * encoder.averageBytesPerChar());
            if (n == 0)
                n = (int) (buffer.remaining() * encoder.maxBytesPerChar());
        }
        ByteBuffer result = ByteBuffer.allocate(n);
        if (n == 0)

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