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

Example 56 with CoderResult

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

the class StringCoding method decode.

static Result decode(Charset cs, byte[] ba, int off, int len) {
    // is started...
    if (cs == UTF_8) {
        return StringDecoderUTF8.decode(ba, off, len, new Result());
    }
    CharsetDecoder cd = cs.newDecoder();
    // ascii fastpath
    if (cs == ISO_8859_1 || ((cd instanceof ArrayDecoder) && ((ArrayDecoder) cd).isASCIICompatible() && !hasNegatives(ba, off, len))) {
        if (COMPACT_STRINGS) {
            return new Result().with(Arrays.copyOfRange(ba, off, off + len), LATIN1);
        } else {
            return new Result().with(StringLatin1.inflate(ba, off, len), UTF16);
        }
    }
    int en = scale(len, cd.maxCharsPerByte());
    if (len == 0) {
        return new Result().with();
    }
    if (cs.getClass().getClassLoader0() != null && System.getSecurityManager() != null) {
        ba = Arrays.copyOfRange(ba, off, off + len);
        off = 0;
    }
    cd.onMalformedInput(CodingErrorAction.REPLACE).onUnmappableCharacter(CodingErrorAction.REPLACE).reset();
    char[] ca = new char[en];
    if (cd instanceof ArrayDecoder) {
        int clen = ((ArrayDecoder) cd).decode(ba, off, len, ca);
        return new Result().with(ca, 0, clen);
    }
    ByteBuffer bb = ByteBuffer.wrap(ba, off, len);
    CharBuffer cb = CharBuffer.wrap(ca);
    try {
        CoderResult cr = cd.decode(bb, cb, true);
        if (!cr.isUnderflow())
            cr.throwException();
        cr = cd.flush(cb);
        if (!cr.isUnderflow())
            cr.throwException();
    } catch (CharacterCodingException x) {
        // so this shouldn't happen
        throw new Error(x);
    }
    return new Result().with(ca, 0, cb.position());
}

Example 57 with CoderResult

use of java.nio.charset.CoderResult in project wigle-wifi-wardriving by wiglenet.

the class HttpFileUploader method writeString.

/**
 * write a string out to a byte channel.
 *
 * @param wbc the byte channel to write to
 * @param str the string to write
 * @param enc the cbc encoder to use, will be reset
 * @param cbuff the scratch charbuffer, will be cleared
 * @param bbuff the scratch bytebuffer, will be cleared
 */
private static void writeString(WritableByteChannel wbc, String str, CharsetEncoder enc, CharBuffer cbuff, ByteBuffer bbuff) throws IOException {
    // clear existing state
    cbuff.clear();
    bbuff.clear();
    enc.reset();
    cbuff.put(str);
    cbuff.flip();
    CoderResult result = enc.encode(cbuff, bbuff, true);
    if (CoderResult.UNDERFLOW != result) {
        throw new IOException("encode fail. result: " + result + " cbuff: " + cbuff + " bbuff: " + bbuff);
    }
    result = enc.flush(bbuff);
    if (CoderResult.UNDERFLOW != result) {
        throw new IOException("flush fail. result: " + result + " bbuff: " + bbuff);
    }
    bbuff.flip();
    int remaining = bbuff.remaining();
    while (remaining > 0) {
        remaining -= wbc.write(bbuff);
    }
}

Example 58 with CoderResult

use of java.nio.charset.CoderResult in project ant by apache.

the class NioZipEncoding method encode.

/**
 * @see org.apache.tools.zip.ZipEncoding#encode(java.lang.String)
 */
public ByteBuffer encode(final String name) {
    final CharsetEncoder enc = this.charset.newEncoder();
    enc.onMalformedInput(CodingErrorAction.REPORT);
    enc.onUnmappableCharacter(CodingErrorAction.REPORT);
    final CharBuffer cb = CharBuffer.wrap(name);
    ByteBuffer out = ByteBuffer.allocate(name.length() + (name.length() + 1) / 2);
    while (cb.remaining() > 0) {
        final CoderResult res = enc.encode(cb, out, true);
        if (res.isUnmappable() || res.isMalformed()) {
            // pseudo-URL encoding style to ByteBuffer.
            if (res.length() * 6 > out.remaining()) {
                out = ZipEncodingHelper.growBuffer(out, out.position() + res.length() * 6);
            }
            for (int i = 0; i < res.length(); ++i) {
                ZipEncodingHelper.appendSurrogate(out, cb.get());
            }
        } else if (res.isOverflow()) {
            out = ZipEncodingHelper.growBuffer(out, 0);
        } else if (res.isUnderflow()) {
            enc.flush(out);
            break;
        }
    }
    out.limit(out.position());
    out.rewind();
    return out;
}

Example 59 with CoderResult

use of java.nio.charset.CoderResult in project derby by apache.

the class DDMWriter method writeString.

/**
 * Write string with default encoding
 *
 * @param s value to be written
 *
 * @exception DRDAProtocolException
 */
protected void writeString(String s) throws DRDAProtocolException {
    ensureLength(maxEncodedLength(s));
    CharBuffer input = CharBuffer.wrap(s);
    encoder.reset();
    CoderResult res = encoder.encode(input, buffer, true);
    if (res == CoderResult.UNDERFLOW) {
        res = encoder.flush(buffer);
    }
    if (SanityManager.DEBUG) {
        SanityManager.ASSERT(res == CoderResult.UNDERFLOW, "CharBuffer was not exhausted: res = " + res);
    }
}

Example 60 with CoderResult

use of java.nio.charset.CoderResult in project teiid by teiid.

the class ReaderInputStream method read.

@Override
public int read(byte[] bbuf, int off, int len) throws IOException {
    if ((off < 0) || (off > bbuf.length) || (len < 0) || ((off + len) > bbuf.length) || ((off + len) < 0)) {
        throw new IndexOutOfBoundsException();
    } else if (len == 0) {
        return 0;
    }
    while (!done && !bb.hasRemaining()) {
        int read = 0;
        int pos = cb.position();
        if (!wasOverflow) {
            while ((read = reader.read(cb)) == 0) {
            // blocking read
            }
            cb.flip();
        }
        bb.clear();
        CoderResult cr = encoder.encode(cb, bb, read == -1);
        checkResult(cr);
        if (read == -1 && !wasOverflow) {
            cr = encoder.flush(bb);
            checkResult(cr);
            if (!wasOverflow) {
                done = true;
            }
        }
        if (!wasOverflow) {
            if (read != 0 && cb.position() != read + pos) {
                cb.compact();
            } else {
                cb.clear();
            }
        }
        bb.flip();
    }
    len = Math.min(len, bb.remaining());
    if (len == 0 && done) {
        return -1;
    }
    bb.get(bbuf, off, len);
    return len;
}