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

Example 56 with CharBuffer

use of java.nio.CharBuffer in project robovm by robovm.

the class OldCharsetEncoderDecoderBufferTest method testEncoderInputBuffer.

/* Checks for a buffer corruption that happens in ICU
     * (CharsetEncoderICU) when an encode operation
     * is done first with an in-buffer with hasArray()==true, and next with an in-buffer with
     * hasArray()==false. In that situation ICU may overwrite the array of the first in-buffer.
     */
public void testEncoderInputBuffer() {
    CharsetEncoder encoder = Charset.forName("UTF-8").newEncoder();
    ByteBuffer out = ByteBuffer.wrap(new byte[10]);
    char[] inArray = { 'a', 'b' };
    CharBuffer inWithArray = CharBuffer.wrap(inArray);
    assertTrue(inWithArray.hasArray());
    encoder.encode(inWithArray, out, false);
    assertEquals('a', inArray[0]);
    assertEquals('b', inArray[1]);
    CharBuffer inWithoutArray = CharBuffer.wrap("x");
    assertFalse(inWithoutArray.hasArray());
    encoder.encode(inWithoutArray, out, true);
    // check whether the second decode corrupted the first buffer
    assertEquals('a', inArray[0]);
    assertEquals('b', inArray[1]);
}

Example 57 with CharBuffer

use of java.nio.CharBuffer in project robovm by robovm.

the class OldCharset_AbstractTest method test_CodecDynamic.

public void test_CodecDynamic() throws CharacterCodingException {
    encoder.onUnmappableCharacter(CodingErrorAction.REPORT);
    decoder.onMalformedInput(CodingErrorAction.REPORT);
    CharBuffer inputCB = CharBuffer.allocate(65536);
    for (int code = 32; code <= 65533; ++code) {
        // even for charsets like US-ASCII. http://b/10310751
        if (code >= 0xd800 && code <= 0xdfff) {
            continue;
        }
        if (encoder.canEncode((char) code)) {
            inputCB.put((char) code);
        }
    }
    inputCB.rewind();
    ByteBuffer intermediateBB = encoder.encode(inputCB);
    inputCB.rewind();
    intermediateBB.rewind();
    CharBuffer outputCB = decoder.decode(intermediateBB);
    outputCB.rewind();
    assertEqualCBs("decode(encode(A)) must be identical with A!", inputCB, outputCB);
}

Example 58 with CharBuffer

use of java.nio.CharBuffer in project jvm-serializers by eishay.

the class JsonFormat method toStringBuilder.

// TODO(chrisn): See if working around java.io.Reader#read(CharBuffer)
// overhead is worthwhile
private static StringBuilder toStringBuilder(Readable input) throws IOException {
    StringBuilder text = new StringBuilder();
    CharBuffer buffer = CharBuffer.allocate(BUFFER_SIZE);
    while (true) {
        int n = input.read(buffer);
        if (n == -1) {
            break;
        }
        buffer.flip();
        text.append(buffer, 0, n);
    }
    return text;
}

Example 59 with CharBuffer

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

the class NulTerminatedCharsetDecoderTest method nulTerminatedBufferDecodesContentsToBuffer.

@Test
public void nulTerminatedBufferDecodesContentsToBuffer() {
    NulTerminatedCharsetDecoder decoder = new NulTerminatedCharsetDecoder(StandardCharsets.UTF_8.newDecoder());
    // U+1F4A9 in UTF-8
    ByteBuffer in = decodeHex("F09F92A900");
    CharBuffer out = CharBuffer.allocate(2);
    assertThat(in.position(), is(equalTo(0)));
    assertThat(in.limit(), is(equalTo(5)));
    assertThat(out.position(), is(equalTo(0)));
    assertThat(out.limit(), is(equalTo(2)));
    NulTerminatedCharsetDecoder.Result result = decoder.decode(in, out, true);
    assertThat(result, is(equalTo(new NulTerminatedCharsetDecoder.Result(true, CoderResult.UNDERFLOW))));
    assertThat(in.position(), is(equalTo(5)));
    assertThat(in.limit(), is(equalTo(5)));
    assertThat(out.position(), is(equalTo(2)));
    assertThat(out.limit(), is(equalTo(2)));
    out.flip();
    // U+1F4A9 in Java
    assertThat(out.toString(), is(equalTo("💩")));
}

Example 60 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))));
}