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

Example 21 with CoderResult

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

the class WriterOutputStream method processInput.

/**
     * Decode the contents of the input ByteBuffer into a CharBuffer.
     * 
     * @param endOfInput indicates end of input
     * @throws IOException if an I/O error occurs
     */
private void processInput(boolean endOfInput) throws IOException {
    // Prepare decoderIn for reading
    decoderIn.flip();
    CoderResult coderResult;
    while (true) {
        coderResult = decoder.decode(decoderIn, decoderOut, endOfInput);
        if (coderResult.isOverflow()) {
            flushOutput();
        } else if (coderResult.isUnderflow()) {
            break;
        } else {
            // so we should not get here.
            throw new IOException("Unexpected coder result");
        }
    }
    // Discard the bytes that have been read
    decoderIn.compact();
}

Example 22 with CoderResult

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

the class CharsetEncoderTest method implTestEncodeCharBufferByteBufferbooleanException.

protected void implTestEncodeCharBufferByteBufferbooleanException(boolean endOfInput) throws CharacterCodingException {
    ByteBuffer out = ByteBuffer.allocate(100);
    // MalformedException:
    CharBuffer in = getMalformedCharBuffer();
    encoder.onMalformedInput(CodingErrorAction.REPORT);
    encoder.onUnmappableCharacter(CodingErrorAction.REPORT);
    if (in != null) {
        encoder.reset();
        CoderResult r = encoder.encode(in, out, endOfInput);
        assertTrue(r.isMalformed());
        encoder.reset();
        out.clear();
        in.rewind();
        encoder.onMalformedInput(CodingErrorAction.IGNORE);
        assertSame(CoderResult.UNDERFLOW, encoder.encode(in, out, endOfInput));
        assertCodingErrorAction(endOfInput, out, in, unibytes);
        encoder.reset();
        out.clear();
        in.rewind();
        encoder.onMalformedInput(CodingErrorAction.REPLACE);
        assertSame(CoderResult.UNDERFLOW, encoder.encode(in, out, endOfInput));
        assertCodingErrorAction(endOfInput, out, in, unibytesWithRep);
    } else {
        System.out.println("Cannot find malformed char buffer for " + cs.name());
    }
    // Unmapped Exception:
    in = getUnmapCharBuffer();
    encoder.onMalformedInput(CodingErrorAction.REPORT);
    encoder.onUnmappableCharacter(CodingErrorAction.REPORT);
    if (in != null) {
        encoder.reset();
        out.clear();
        assertTrue(encoder.encode(in, out, endOfInput).isUnmappable());
        encoder.reset();
        out.clear();
        in.rewind();
        encoder.onUnmappableCharacter(CodingErrorAction.IGNORE);
        assertSame(CoderResult.UNDERFLOW, encoder.encode(in, out, endOfInput));
        assertCodingErrorAction(endOfInput, out, in, unibytes);
        encoder.reset();
        out.clear();
        in.rewind();
        encoder.onUnmappableCharacter(CodingErrorAction.REPLACE);
        assertSame(CoderResult.UNDERFLOW, encoder.encode(in, out, endOfInput));
        assertCodingErrorAction(endOfInput, out, in, unibytesWithRep);
    } else {
        System.out.println("Cannot find unmapped char buffer for " + cs.name());
    }
    // RuntimeException
    try {
        encoder.encode(getExceptionCharBuffer());
        fail("should throw runtime exception");
    } catch (RuntimeException e) {
    }
}

Example 23 with CoderResult

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

the class CharsetDecoderTest method test_ByteArray_decode_with_offset.

// http://code.google.com/p/android/issues/detail?id=4237
public void test_ByteArray_decode_with_offset() throws Exception {
    CharsetDecoder decoder = Charset.forName("UTF-16").newDecoder();
    byte[] arr = encode("UTF-16", "Android");
    arr = prependByteToByteArray(arr, new Integer(1).byteValue());
    int offset = 1;
    ByteBuffer inBuffer = ByteBuffer.wrap(arr, offset, arr.length - offset).slice();
    CharBuffer outBuffer = CharBuffer.allocate(arr.length - offset);
    decoder.reset();
    CoderResult coderResult = decoder.decode(inBuffer, outBuffer, true);
    assertFalse(coderResult.toString(), coderResult.isError());
    decoder.flush(outBuffer);
    outBuffer.flip();
    assertEquals("Android", outBuffer.toString().trim());
}

Example 24 with CoderResult

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

the class CharsetEncoderTest method testSurrogatePairAllAtOnce.

public void testSurrogatePairAllAtOnce() throws Exception {
    // okay: surrogate pair seen all at once is decoded to U+20b9f.
    Charset cs = Charset.forName("UTF-32BE");
    CharsetEncoder e = cs.newEncoder();
    ByteBuffer bb = ByteBuffer.allocate(128);
    CoderResult cr = e.encode(CharBuffer.wrap(new char[] { '�', '�' }), bb, false);
    assertEquals(CoderResult.UNDERFLOW, cr);
    assertEquals(4, bb.position());
    assertEquals((byte) 0x00, bb.get(0));
    assertEquals((byte) 0x02, bb.get(1));
    assertEquals((byte) 0x0b, bb.get(2));
    assertEquals((byte) 0x9f, bb.get(3));
}

Example 25 with CoderResult

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

the class OutputStreamWriter method drainEncoder.

private void drainEncoder() throws IOException {
    // Strictly speaking, I think it's part of the CharsetEncoder contract that you call
    // encode with endOfInput true before flushing. Our ICU-based implementations don't
    // actually need this, and you'd hope that any reasonable implementation wouldn't either.
    // CharsetEncoder.encode doesn't actually pass the boolean through to encodeLoop anyway!
    CharBuffer chars = CharBuffer.allocate(0);
    while (true) {
        CoderResult result = encoder.encode(chars, bytes, true);
        if (result.isError()) {
            result.throwException();
        } else if (result.isOverflow()) {
            flushBytes(false);
            continue;
        }
        break;
    }
    // Some encoders (such as ISO-2022-JP) have stuff to write out after all the
    // characters (such as shifting back into a default state). In our implementation,
    // this is actually the first time ICU is told that we've run out of input.
    CoderResult result = encoder.flush(bytes);
    while (!result.isUnderflow()) {
        if (result.isOverflow()) {
            flushBytes(false);
            result = encoder.flush(bytes);
        } else {
            result.throwException();
        }
    }
}