Example usage for com.google.common.hash HashFunction newHasher

Introduction

In this page you can find the example usage for com.google.common.hash HashFunction newHasher.

Prototype

Hasher newHasher();

Source Link

Document

Begins a new hash code computation by returning an initialized, stateful Hasher instance that is ready to receive data.

Usage

From source file:com.taobao.tanggong.HashUtil.java

public static String md5Hash(String src) {
    HashFunction hf = Hashing.md5();
    HashCode hc = hf.newHasher().putString(src).hash();
    return hc.toString();
}

From source file:epoxide.lpa.impl.StringUtil.java

public static String hash(HashFunction hf, Kryo kryo, Object obj) {
    Hasher ho = hf.newHasher();
    Output out = new Output(Funnels.asOutputStream(ho));
    kryo.writeClassAndObject(out, obj);//  ww w  . ja v a  2s  . c om
    out.close();
    return hex(ho.hash().asBytes());
}

From source file:io.github.maxymania.powercache.hash.Util.java

public static byte[] hash(HashFunction hf, Object obj) {
    Hasher digest = hf.newHasher();
    digest.putObject(obj, funnel);/*www. ja  v  a2s .  c om*/
    return digest.hash().asBytes();
}

From source file:org.kmworks.util.crypto.Hashing.java

public static byte[] md5(String s) {
    HashFunction hf = com.google.common.hash.Hashing.md5();
    HashCode hc = hf.newHasher().putString(s, Charsets.UTF_8).hash();
    return hc.asBytes();
}

From source file:norbert.mynemo.dataimport.StringUserDataModel.java

/**
 * Returns the hash of the given user name.
 *
 * @param name a user name/*from   www  . ja  v a 2s . c o  m*/
 * @return the hash of the user name
 */
public static long convertUsername(String name) {
    HashFunction hashFonction = Hashing.murmur3_128();
    return hashFonction.newHasher().putString(name, Charsets.UTF_8).hash().asLong();
}

From source file:io.github.maxymania.powercache.hash.Util.java

public static byte[] hash(HashFunction hf, String catname, Object[] obj) {
    Hasher digest = hf.newHasher();
    digest.putString(catname, UTF);/*from   w w  w.j  av  a2s. c  o m*/
    digest.putObject(obj, funnel);
    return digest.hash().asBytes();
}

From source file:org.onosproject.net.link.ProbedLinkProvider.java

/**
 * Build a stringified MAC address using the ClusterMetadata hash for uniqueness.
 * Form of MAC is "02:eb" followed by four bytes of clusterMetadata hash.
 *
 * @param cm cluster metadata/*from   w  ww .j a  v a 2  s.co m*/
 * @return stringified mac address
 */
static String fingerprintMac(ClusterMetadata cm) {
    if (cm == null) {
        return DEFAULT_MAC;
    }

    HashFunction hf = Hashing.murmur3_32();
    HashCode hc = hf.newHasher().putObject(cm, ClusterMetadata.HASH_FUNNEL).hash();
    int unqf = hc.asInt();

    StringBuilder sb = new StringBuilder();
    sb.append("02:eb");
    for (int i = 0; i < 4; i++) {
        byte b = (byte) (unqf >> i * 8);
        sb.append(String.format(":%02X", b));
    }
    return sb.toString();
}

From source file:com.github.luluvise.droid_utils.lib.HashUtils.java

/**
 * Gets a String hash generated using the passed hashing algorithm.
 *//*  w ww.ja  va  2s  .co m*/
@Nonnull
public static String getHash(@Nonnull HashFunction hash, @Nonnull String... strings) {
    Hasher hasher = hash.newHasher();
    for (String input : strings) {
        hasher.putString(input);
    }
    return hasher.hash().toString();
}

From source file:com.github.marcosalis.kraken.utils.HashUtils.java

/**
 * Gets a String hash generated using the passed hashing algorithm.
 *///w w  w  . ja  v a2  s  . c om
@Nonnull
public static String getHash(@Nonnull HashFunction hash, @Nonnull String... strings) {
    final Hasher hasher = hash.newHasher();
    for (String input : strings) {
        hasher.putString(input);
    }
    return hasher.hash().toString();
}

From source file:com.vertixtech.antiquity.graph.ElementUtils.java

/**
 * <p>/*from   w w  w .  j ava 2 s  .c  o m*/
 * Calculate the private hash of an {@link Element}.
 * </p>
 * 
 * <p>
 * The private hash contains only the properties of the {@link Element}, without its associated elements.
 * </p>
 * 
 * <p>
 * The hash is calculated based on SHA1 algorithm
 * </p>
 * 
 * TODO Handle arrays values properly.
 * 
 * @param element
 *            The element to calculate the private hash for.
 * @param excludedKeys
 *            the keys to exclude when hash is calculated.
 * @return A string representation of the hash
 * @see HashCode#toString()
 */
public static String calculateElementPrivateHash(Element element, Set<String> excludedKeys) {
    Map<String, Object> props = ElementUtils.getPropertiesAsMap(element, excludedKeys);
    Joiner.MapJoiner propsJoiner = Joiner.on('&').withKeyValueSeparator("=");

    HashFunction hf = Hashing.sha1();
    Hasher h = hf.newHasher();

    h.putString("[" + element.getId().toString() + "]");
    h.putString(propsJoiner.join(props));

    return h.hash().toString();
}