Examples with CharBuffer java.nio.CharBuffer used on opensource projects

Example 11 with CharBuffer

use of java.nio.CharBuffer in project buck by facebook.

the class NulTerminatedCharsetDecoderTest method nulTerminatedEmptyBufferDecodesToEmptyBuffer.

@Test
public void nulTerminatedEmptyBufferDecodesToEmptyBuffer() {
    NulTerminatedCharsetDecoder decoder = new NulTerminatedCharsetDecoder(StandardCharsets.UTF_8.newDecoder());
    ByteBuffer in = decodeHex("00");
    CharBuffer out = CharBuffer.allocate(0);
    assertThat(in.position(), is(equalTo(0)));
    assertThat(in.limit(), is(equalTo(1)));
    assertThat(out.position(), is(equalTo(0)));
    assertThat(out.limit(), is(equalTo(0)));
    NulTerminatedCharsetDecoder.Result result = decoder.decode(in, out, true);
    assertThat(in.position(), is(equalTo(1)));
    assertThat(in.limit(), is(equalTo(1)));
    assertThat(out.position(), is(equalTo(0)));
    assertThat(out.limit(), is(equalTo(0)));
    assertThat(result, is(equalTo(new NulTerminatedCharsetDecoder.Result(true, CoderResult.UNDERFLOW))));
}

Example 12 with CharBuffer

use of java.nio.CharBuffer in project buck by facebook.

the class NulTerminatedCharsetDecoderTest method invalidUTF8BufferReturnsMalformedResult.

@Test
public void invalidUTF8BufferReturnsMalformedResult() {
    NulTerminatedCharsetDecoder decoder = new NulTerminatedCharsetDecoder(StandardCharsets.UTF_8.newDecoder());
    ByteBuffer in = decodeHex("C0FFEE00");
    CharBuffer out = CharBuffer.allocate(4);
    assertThat(in.position(), is(equalTo(0)));
    assertThat(in.limit(), is(equalTo(4)));
    assertThat(out.position(), is(equalTo(0)));
    assertThat(out.limit(), is(equalTo(4)));
    NulTerminatedCharsetDecoder.Result result = decoder.decode(in, out, true);
    assertThat(result, is(equalTo(new NulTerminatedCharsetDecoder.Result(false, CoderResult.malformedForLength(1)))));
    assertThat(in.position(), is(equalTo(0)));
    assertThat(in.limit(), is(equalTo(4)));
    assertThat(out.position(), is(equalTo(0)));
    assertThat(out.limit(), is(equalTo(4)));
}

Example 13 with CharBuffer

use of java.nio.CharBuffer in project android_frameworks_base by ParanoidAndroid.

the class FastXmlSerializer method flush.

public void flush() throws IOException {
    //Log.i("PackageManager", "flush mPos=" + mPos);
    if (mPos > 0) {
        if (mOutputStream != null) {
            CharBuffer charBuffer = CharBuffer.wrap(mText, 0, mPos);
            CoderResult result = mCharset.encode(charBuffer, mBytes, true);
            while (true) {
                if (result.isError()) {
                    throw new IOException(result.toString());
                } else if (result.isOverflow()) {
                    flushBytes();
                    result = mCharset.encode(charBuffer, mBytes, true);
                    continue;
                }
                break;
            }
            flushBytes();
            mOutputStream.flush();
        } else {
            mWriter.write(mText, 0, mPos);
            mWriter.flush();
        }
        mPos = 0;
    }
}

Example 14 with CharBuffer

use of java.nio.CharBuffer in project feign by OpenFeign.

the class Util method toString.

/**
   * Adapted from {@code com.google.common.io.CharStreams.toString()}.
   */
public static String toString(Reader reader) throws IOException {
    if (reader == null) {
        return null;
    }
    try {
        StringBuilder to = new StringBuilder();
        CharBuffer buf = CharBuffer.allocate(BUF_SIZE);
        while (reader.read(buf) != -1) {
            buf.flip();
            to.append(buf);
            buf.clear();
        }
        return to.toString();
    } finally {
        ensureClosed(reader);
    }
}

Example 15 with CharBuffer

use of java.nio.CharBuffer in project fastjson by alibaba.

the class JSON method parse.

public static Object parse(byte[] input, int off, int len, CharsetDecoder charsetDecoder, int features) {
    charsetDecoder.reset();
    int scaleLength = (int) (len * (double) charsetDecoder.maxCharsPerByte());
    char[] chars = allocateChars(scaleLength);
    ByteBuffer byteBuf = ByteBuffer.wrap(input, off, len);
    CharBuffer charBuf = CharBuffer.wrap(chars);
    IOUtils.decode(charsetDecoder, byteBuf, charBuf);
    int position = charBuf.position();
    DefaultJSONParser parser = new DefaultJSONParser(chars, position, ParserConfig.getGlobalInstance(), features);
    Object value = parser.parse();
    parser.handleResovleTask(value);
    parser.close();
    return value;
}