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

Example 6 with CharsetEncoder

use of java.nio.charset.CharsetEncoder in project weex-example by KalicyZhou.

the class PDF417HighLevelEncoder method determineConsecutiveBinaryCount.

/**
   * Determines the number of consecutive characters that are encodable using binary compaction.
   *
   * @param msg      the message
   * @param startpos the start position within the message
   * @param encoding the charset used to convert the message to a byte array
   * @return the requested character count
   */
private static int determineConsecutiveBinaryCount(String msg, int startpos, Charset encoding) throws WriterException {
    final CharsetEncoder encoder = encoding.newEncoder();
    int len = msg.length();
    int idx = startpos;
    while (idx < len) {
        char ch = msg.charAt(idx);
        int numericCount = 0;
        while (numericCount < 13 && isDigit(ch)) {
            numericCount++;
            //textCount++;
            int i = idx + numericCount;
            if (i >= len) {
                break;
            }
            ch = msg.charAt(i);
        }
        if (numericCount >= 13) {
            return idx - startpos;
        }
        ch = msg.charAt(idx);
        if (!encoder.canEncode(ch)) {
            throw new WriterException("Non-encodable character detected: " + ch + " (Unicode: " + (int) ch + ')');
        }
        idx++;
    }
    return idx - startpos;
}

Example 7 with CharsetEncoder

use of java.nio.charset.CharsetEncoder in project robovm by robovm.

the class ASCIICharsetEncoderTest method testInternalState_Reset.

//reset could be called at any time
public void testInternalState_Reset() {
    CharsetEncoder newEncoder = cs.newEncoder();
    //Init - > reset
    newEncoder.reset();
    //reset - > reset
    newEncoder.reset();
    //encoding - >reset
    {
        CharBuffer in = CharBuffer.wrap("A");
        ByteBuffer out = ByteBuffer.allocate(0x10);
        newEncoder.encode(in, out, false);
        newEncoder.reset();
    }
    //encoding end -> reset
    {
        CharBuffer in = CharBuffer.wrap("A");
        ByteBuffer out = ByteBuffer.allocate(0x10);
        newEncoder.encode(in, out, true);
        newEncoder.reset();
    }
    //flused -> reset
    {
        CharBuffer in = CharBuffer.wrap("A");
        ByteBuffer out = ByteBuffer.allocate(0x10);
        newEncoder.encode(in, out, true);
        newEncoder.flush(out);
        newEncoder.reset();
    }
}

Example 8 with CharsetEncoder

use of java.nio.charset.CharsetEncoder in project robovm by robovm.

the class Manifest method write.

/**
     * Writes out the attribute information of the specified manifest to the
     * specified {@code OutputStream}
     *
     * @param manifest
     *            the manifest to write out.
     * @param out
     *            The {@code OutputStream} to write to.
     * @throws IOException
     *             If an error occurs writing the {@code Manifest}.
     */
static void write(Manifest manifest, OutputStream out) throws IOException {
    CharsetEncoder encoder = StandardCharsets.UTF_8.newEncoder();
    ByteBuffer buffer = ByteBuffer.allocate(LINE_LENGTH_LIMIT);
    Attributes.Name versionName = Attributes.Name.MANIFEST_VERSION;
    String version = manifest.mainAttributes.getValue(versionName);
    if (version == null) {
        versionName = Attributes.Name.SIGNATURE_VERSION;
        version = manifest.mainAttributes.getValue(versionName);
    }
    if (version != null) {
        writeEntry(out, versionName, version, encoder, buffer);
        Iterator<?> entries = manifest.mainAttributes.keySet().iterator();
        while (entries.hasNext()) {
            Attributes.Name name = (Attributes.Name) entries.next();
            if (!name.equals(versionName)) {
                writeEntry(out, name, manifest.mainAttributes.getValue(name), encoder, buffer);
            }
        }
    }
    out.write(LINE_SEPARATOR);
    Iterator<String> i = manifest.getEntries().keySet().iterator();
    while (i.hasNext()) {
        String key = i.next();
        writeEntry(out, Attributes.Name.NAME, key, encoder, buffer);
        Attributes attributes = manifest.entries.get(key);
        Iterator<?> entries = attributes.keySet().iterator();
        while (entries.hasNext()) {
            Attributes.Name name = (Attributes.Name) entries.next();
            writeEntry(out, name, attributes.getValue(name), encoder, buffer);
        }
        out.write(LINE_SEPARATOR);
    }
}

Example 9 with CharsetEncoder

use of java.nio.charset.CharsetEncoder in project platform_frameworks_base by android.

the class StrictJarManifest method write.

/**
     * Writes out the attribute information of the specified manifest to the
     * specified {@code OutputStream}
     *
     * @param manifest
     *            the manifest to write out.
     * @param out
     *            The {@code OutputStream} to write to.
     * @throws IOException
     *             If an error occurs writing the {@code StrictJarManifest}.
     */
static void write(StrictJarManifest manifest, OutputStream out) throws IOException {
    CharsetEncoder encoder = StandardCharsets.UTF_8.newEncoder();
    ByteBuffer buffer = ByteBuffer.allocate(LINE_LENGTH_LIMIT);
    Attributes.Name versionName = Attributes.Name.MANIFEST_VERSION;
    String version = manifest.mainAttributes.getValue(versionName);
    if (version == null) {
        versionName = Attributes.Name.SIGNATURE_VERSION;
        version = manifest.mainAttributes.getValue(versionName);
    }
    if (version != null) {
        writeEntry(out, versionName, version, encoder, buffer);
        Iterator<?> entries = manifest.mainAttributes.keySet().iterator();
        while (entries.hasNext()) {
            Attributes.Name name = (Attributes.Name) entries.next();
            if (!name.equals(versionName)) {
                writeEntry(out, name, manifest.mainAttributes.getValue(name), encoder, buffer);
            }
        }
    }
    out.write(LINE_SEPARATOR);
    Iterator<String> i = manifest.getEntries().keySet().iterator();
    while (i.hasNext()) {
        String key = i.next();
        writeEntry(out, Attributes.Name.NAME, key, encoder, buffer);
        Attributes attributes = manifest.entries.get(key);
        Iterator<?> entries = attributes.keySet().iterator();
        while (entries.hasNext()) {
            Attributes.Name name = (Attributes.Name) entries.next();
            writeEntry(out, name, attributes.getValue(name), encoder, buffer);
        }
        out.write(LINE_SEPARATOR);
    }
}

Example 10 with CharsetEncoder

use of java.nio.charset.CharsetEncoder in project gocd by gocd.

the class NokogiriHelpers method convertEncoding.

public static byte[] convertEncoding(Charset output_charset, String input_string) throws CharacterCodingException {
    CharsetEncoder encoder = output_charset.newEncoder();
    CharBuffer charBuffer = CharBuffer.wrap(input_string);
    ByteBuffer byteBuffer = encoder.encode(charBuffer);
    byte[] buffer = new byte[byteBuffer.remaining()];
    byteBuffer.get(buffer);
    return buffer;
}