Example usage for java.util BitSet flip

Introduction

In this page you can find the example usage for java.util BitSet flip.

Prototype

public void flip(int bitIndex) 

Source Link

Document

Sets the bit at the specified index to the complement of its current value.

Usage

From source file:Main.java

public static void main(String[] args) {

    BitSet bitset1 = new BitSet(8);

    // assign values to bitset1
    bitset1.set(0);/*from  w  ww  . j  a  v a  2s .c  o  m*/
    bitset1.set(1);
    bitset1.set(2);

    System.out.println(bitset1);

    bitset1.flip(1);

    System.out.println(bitset1);
}

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From source file:de.uniba.wiai.lspi.chord.data.ID.java

private static BitSet bitsetArithPwrOf2(final BitSet _bs, final int pwrOf2, final boolean addition) {
    // The bitset is defined as big-endian unsigned, i.e. (idx 0 is highest bit)
    final BitSet bs = (BitSet) _bs.clone();
    assert (pwrOf2 < kTotalBitLen);
    for (int i = kTotalBitLen - 1 - pwrOf2; i >= 0; --i) {
        bs.flip(i);
        // add/sub for unsigned binary is the same, except we bail if (set == addition) after flip
        if (bs.get(i) == addition)
            break;
    }/*  www  . j ava 2s  .  c o m*/

    return bs;
}

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From source file:de.javakaffee.kryoserializers.KryoTest.java

@Test(enabled = true)
public void testCopyBitSet() throws Exception {
    final BitSet bitSet = new BitSet(10);
    bitSet.flip(2);
    bitSet.flip(4);//from  w  w  w.  j a  v a  2s . c om
    final BitSet copy = _kryo.copy(bitSet);
    assertDeepEquals(copy, bitSet);
}

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From source file:de.javakaffee.kryoserializers.KryoTest.java

@Test(enabled = true)
public void testBitSet() throws Exception {
    final BitSet bitSet = new BitSet(10);
    bitSet.flip(2);
    bitSet.flip(4);/*from  w  w w.j  ava  2s. c  o m*/
    final Holder<BitSet> holder = new Holder<BitSet>(bitSet);
    @SuppressWarnings("unchecked")
    final Holder<BitSet> deserialized = deserialize(serialize(holder), Holder.class);
    assertDeepEquals(deserialized, holder);
}

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From source file:org.apache.carbondata.core.scan.filter.FilterUtil.java

/**
 * This method will compare the selected data against null values and
 * flip the bitSet if any null value is found
 *
 * @param dimensionColumnPage//from w  w  w . jav  a2s . c  om
 * @param bitSet
 */
public static void removeNullValues(DimensionColumnPage dimensionColumnPage, BitSet bitSet,
        byte[] defaultValue) {
    if (!bitSet.isEmpty()) {
        if (null != dimensionColumnPage.getNullBits()) {
            if (!dimensionColumnPage.getNullBits().isEmpty()) {
                for (int i = bitSet.nextSetBit(0); i >= 0; i = bitSet.nextSetBit(i + 1)) {
                    if (dimensionColumnPage.getNullBits().get(i)) {
                        bitSet.flip(i);
                    }
                }
            }
        } else {
            for (int i = bitSet.nextSetBit(0); i >= 0; i = bitSet.nextSetBit(i + 1)) {
                if (dimensionColumnPage.compareTo(i, defaultValue) == 0) {
                    bitSet.flip(i);
                }
            }
        }
    }
}

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From source file:org.mycore.imagetiler.MCRImageTest.java

/**
 * Tests {@link MCRImage#tile()} with various images provided by {@link #setUp()}.
 * @throws Exception if tiling process fails
 *///w  w  w .j av a 2  s. co  m
@Test
public void testTiling() throws Exception {
    for (final Map.Entry<String, String> entry : pics.entrySet()) {
        final File file = new File(entry.getValue());
        final String derivateID = "derivateID";
        final String imagePath = "imagePath/" + FilenameUtils.getName(entry.getValue());
        final MCRImage image = new MCRMemSaveImage(file.toPath(), derivateID, imagePath);
        image.setTileDir(tileDir);
        final BitSet events = new BitSet(2);//pre and post event
        image.tile(new MCRTileEventHandler() {

            @Override
            public void preImageReaderCreated() {
                events.flip(0);
            }

            @Override
            public void postImageReaderCreated() {
                events.flip(1);
            }
        });
        assertTrue("preImageReaderCreated() was not called", events.get(0));
        assertTrue("postImageReaderCreated() was not called", events.get(1));
        assertTrue("Tile directory is not created.", Files.exists(tileDir));
        final Path iviewFile = MCRImage.getTiledFile(tileDir, derivateID, imagePath);
        assertTrue("IView File is not created:" + iviewFile, Files.exists(iviewFile));
        final MCRTiledPictureProps props = MCRTiledPictureProps.getInstanceFromFile(iviewFile);
        final int tilesCount;
        try (final ZipFile iviewImage = new ZipFile(iviewFile.toFile())) {
            tilesCount = iviewImage.size() - 1;
            ZipEntry imageInfoXML = iviewImage.getEntry(MCRTiledPictureProps.IMAGEINFO_XML);
            DocumentBuilder documentBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
            Document imageInfo = documentBuilder.parse(iviewImage.getInputStream(imageInfoXML));
            String hAttr = Objects.requireNonNull(imageInfo.getDocumentElement().getAttribute("height"));
            String wAttr = Objects.requireNonNull(imageInfo.getDocumentElement().getAttribute("width"));
            String zAttr = Objects.requireNonNull(imageInfo.getDocumentElement().getAttribute("zoomLevel"));
            String tAttr = Objects.requireNonNull(imageInfo.getDocumentElement().getAttribute("tiles"));
            assertTrue("height must be positive: " + hAttr, Integer.parseInt(hAttr) > 0);
            assertTrue("width must be positive: " + wAttr, Integer.parseInt(wAttr) > 0);
            assertTrue("zoomLevel must be zero or positive: " + zAttr, Integer.parseInt(zAttr) >= 0);
            int iTiles = Integer.parseInt(tAttr);
            assertEquals(tilesCount, iTiles);

        }
        assertEquals(entry.getKey() + ": Metadata tile count does not match stored tile count.",
                props.getTilesCount(), tilesCount);
        final int x = props.width;
        final int y = props.height;
        assertEquals(entry.getKey() + ": Calculated tile count does not match stored tile count.",
                MCRImage.getTileCount(x, y), tilesCount);
    }
}

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