Examples with CharsetEncoder java.nio.charset.CharsetEncoder used on opensource projects

Example 31 with CharsetEncoder

use of java.nio.charset.CharsetEncoder in project Bytecoder by mirkosertic.

the class ZipCoder method getBytes.

byte[] getBytes(String s) {
    CharsetEncoder ce = encoder().reset();
    char[] ca = s.toCharArray();
    int len = (int) (ca.length * ce.maxBytesPerChar());
    byte[] ba = new byte[len];
    if (len == 0)
        return ba;
    // CodingErrorAction.REPLACE mode.
    if (isUTF8 && ce instanceof ArrayEncoder) {
        int blen = ((ArrayEncoder) ce).encode(ca, 0, ca.length, ba);
        if (// malformed
        blen == -1)
            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());
    if (// defensive copy?
    bb.position() == ba.length)
        return ba;
    else
        return Arrays.copyOf(ba, bb.position());
}

Example 32 with CharsetEncoder

use of java.nio.charset.CharsetEncoder in project jackrabbit-oak by apache.

the class UTF8Encoder method encodeAsByteArray.

/**
 * Like {@link String#getBytes(java.nio.charset.Charset)} (with "UTF-8"),
 * except that invalid character sequences (such as unpaired surrogates) are
 * reported as exceptions (see {@link CodingErrorAction#REPORT}, instead of
 * being silently replaced by a replacement character as it would happen
 * otherwise.
 *
 * @param input
 *            String to encode
 * @return String encoded using {@link StandardCharsets#UTF_8}
 * @throws IOException
 *             on encoding error
 */
public static byte[] encodeAsByteArray(String input) throws IOException {
    CharsetEncoder e = CSE.get();
    e.reset();
    return bytes(e.encode(CharBuffer.wrap(input.toCharArray())));
}

Example 33 with CharsetEncoder

use of java.nio.charset.CharsetEncoder in project jackrabbit-oak by apache.

the class UTF8Encoder method canEncode.

/**
 * @see {@link CharsetEncoder#canEncode(CharSequence)
 */
public static boolean canEncode(CharSequence input) {
    CharsetEncoder e = CSE.get();
    e.reset();
    return e.canEncode(input);
}

Example 34 with CharsetEncoder

use of java.nio.charset.CharsetEncoder in project jackrabbit-oak by apache.

the class FileIOUtilsTest method getRandomTestString.

private static String getRandomTestString() throws Exception {
    boolean valid = false;
    StringBuilder buffer = new StringBuilder();
    while (!valid) {
        int length = RANDOM.nextInt(40);
        for (int i = 0; i < length; i++) {
            buffer.append((char) (RANDOM.nextInt(Character.MAX_VALUE)));
        }
        String s = buffer.toString();
        CharsetEncoder encoder = Charset.forName(UTF_8.toString()).newEncoder();
        try {
            encoder.encode(CharBuffer.wrap(s));
            valid = true;
        } catch (CharacterCodingException e) {
            buffer = new StringBuilder();
        }
    }
    return buffer.toString();
}

Example 35 with CharsetEncoder

use of java.nio.charset.CharsetEncoder in project jackrabbit-oak by apache.

the class CharsetEncodingUtils method encodeAsUTF8.

/**
 * Like {@link String#getBytes(java.nio.charset.Charset)} (with "UTF-8"),
 * except that encoding problems (like unpaired surrogates) are reported as
 * exceptions (see {@link CodingErrorAction#REPORT}, instead of being
 * silently replaces as it would happen otherwise.
 *
 * @param input
 *            String to encode
 * @return String encoded using {@link StandardCharsets#UTF_8}
 * @throws IOException
 *             on encoding error
 */
public static byte[] encodeAsUTF8(String input) throws IOException {
    CharsetEncoder e = CSE.get();
    e.reset();
    return bytes(e.encode(CharBuffer.wrap(input.toCharArray())));
}