Example usage for java.util BitSet length

Introduction

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

Prototype

public int length() 

Source Link

Document

Returns the "logical size" of this BitSet : the index of the highest set bit in the BitSet plus one.

Usage

From source file:org.efaps.admin.datamodel.attributetype.BitEnumType.java

/**
 * @param _bitIndex bitindex the integer value is wanted for
 * @return integer value representing the bitindex
 *//*from  w  w w . j  av  a 2s.co  m*/
public static int getInt4Index(final int _bitIndex) {
    final BitSet bitSet = new BitSet(_bitIndex + 1);
    bitSet.set(_bitIndex);
    int ret = 0;
    for (int i = 0; i < bitSet.length(); ++i) {
        ret += bitSet.get(i) ? 1 << i : 0;
    }
    return ret;
}

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From source file:mobisocial.musubi.ui.FeedListActivity.java

public static byte[] toByteArray(BitSet bits) {
    byte[] bytes = new byte[bits.length() / 8 + 1];
    for (int i = 0; i < bits.length(); i++) {
        if (bits.get(i)) {
            bytes[bytes.length - i / 8 - 1] |= 1 << (i % 8);
        }/*from w  w w  .  j a va 2  s  .co  m*/
    }
    return bytes;
}

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From source file:jBittorrentAPI.utils.Utils.java

public static byte[] toByteArray(BitSet bits) {
    byte[] bytes = new byte[bits.length() / 8 + 1];
    for (int i = 0; i < bits.length(); i++) {
        if (bits.get(i)) {
            bytes[i / 8] |= 1 << (7 - i % 8);
        }/*from  www  . ja va 2s .co  m*/
    }
    return bytes;
}

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From source file:net.bioclipse.cdk.ui.sdfeditor.CDKFingerPrintPropertyCalculator.java

public String toString(Object value) {
    // TODO check if this is right
    BitSet val = (BitSet) value;
    byte[] bytes = new byte[val.length() / 8 + 1];
    for (int i = 0; i < val.length(); i++) {
        if (val.get(i)) {
            bytes[bytes.length - i / 8 - 1] |= 1 << (i % 8);
        }/*from ww w .  j a v  a  2 s.  c o  m*/
    }
    return new String(new Base64().encode(bytes));
}

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From source file:TypeConversionHelper.java

/**
 * Convert an instance of our value class into a boolean[].
 *
 * @param value Object to be converted/*from www . ja  v a 2  s  . c om*/
 *
 * @return converted boolean array
 */
public static boolean[] getBooleanArrayFromBitSet(BitSet value) {
    if (value == null) {
        return null;
    }

    boolean[] a = new boolean[value.length()];
    for (int i = 0; i < a.length; i++) {
        a[i] = value.get(i);
    }
    return a;
}

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From source file:org.apache.metron.stellar.common.utils.hashing.tlsh.TLSHHasher.java

public Map<String, String> bin(String hash) throws DecoderException {
    Random r = new Random(0);
    byte[] h = Hex.decodeHex(hash.substring(2 * checksumOption.getChecksumLength()).toCharArray());
    BitSet vector = BitSet.valueOf(h);
    int n = vector.length();
    Map<String, String> ret = new HashMap<>();
    boolean singleHash = hashes.size() == 1;
    for (int numHashes : hashes) {
        BitSet projection = new BitSet();
        for (int i = 0; i < numHashes; ++i) {
            int index = r.nextInt(n);
            projection.set(i, vector.get(index));
        }/*from   w  ww .ja  v a 2  s  .  c om*/
        String outputHash = numHashes + Hex.encodeHexString(projection.toByteArray());
        if (singleHash) {
            ret.put(TLSH_BIN_KEY, outputHash);
        } else {
            ret.put(TLSH_BIN_KEY + "_" + numHashes, outputHash);
        }
    }
    return ret;
}

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From source file:org.apache.eagle.alert.engine.serialization.PartitionedEventSerializerTest.java

@Test
public void testBitSet() {
    BitSet bitSet = new BitSet();
    bitSet.set(0, true); // 1
    bitSet.set(1, false); // 0
    bitSet.set(2, true); // 1
    LOG.info("Bit Set Size: {}", bitSet.size());
    LOG.info("Bit Set Byte[]: {}", bitSet.toByteArray());
    LOG.info("Bit Set Byte[]: {}", bitSet.toLongArray());
    LOG.info("BitSet[0]: {}", bitSet.get(0));
    LOG.info("BitSet[1]: {}", bitSet.get(1));
    LOG.info("BitSet[1]: {}", bitSet.get(2));

    byte[] bytes = bitSet.toByteArray();

    BitSet bitSet2 = BitSet.valueOf(bytes);

    LOG.info("Bit Set Size: {}", bitSet2.size());
    LOG.info("Bit Set Byte[]: {}", bitSet2.toByteArray());
    LOG.info("Bit Set Byte[]: {}", bitSet2.toLongArray());
    LOG.info("BitSet[0]: {}", bitSet2.get(0));
    LOG.info("BitSet[1]: {}", bitSet2.get(1));
    LOG.info("BitSet[1]: {}", bitSet2.get(2));

    BitSet bitSet3 = new BitSet();
    bitSet3.set(0, true);//from  ww w .j a  va 2 s . c o m
    Assert.assertEquals(1, bitSet3.length());

    BitSet bitSet4 = new BitSet();
    bitSet4.set(0, false);
    Assert.assertEquals(0, bitSet4.length());
    Assert.assertFalse(bitSet4.get(1));
    Assert.assertFalse(bitSet4.get(2));
}

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From source file:at.tuwien.mnsa.smssender.SMSPDUConverter.java

private BitSet leftShiftBitset(BitSet bitset, int positions) {
    return bitset.get(positions, Math.max(positions, bitset.length()));
}

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From source file:at.tuwien.mnsa.smssender.SMSPDUConverter.java

/**
 * Right shift a bitset//from   w w w  .  java2s  .  co m
 * @param bitset
 * @param positions
 * @return 
 */
private BitSet rightShiftBitset(BitSet bitset, int positions) {
    for (int j = 0; j < positions; j++) {
        for (int i = bitset.length(); i > 0; i--) {
            bitset.set(i, bitset.get(i - 1));
        }
        bitset.set(j, false);
    }
    return bitset;
}

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From source file:com.google.uzaygezen.core.BitSetBackedBitVector.java

@Override
public void copyFrom(BitSet from) {
    Preconditions.checkArgument(from.length() <= size, "bit set is too large");
    bitset.clear();/*  w w w.j a v a 2  s .  co  m*/
    bitset.or(from);
}

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