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(int expectedInputSize);

Source Link

Document

Begins a new hash code computation as #newHasher() , but provides a hint of the expected size of the input (in bytes).

Usage

From source file:com.tinspx.util.io.callbacks.HashingListener.java

public HashingListener(HashFunction hashFunction, int expectedInputSize) {
    this(hashFunction.newHasher(expectedInputSize));
}

---

From source file:org.opendaylight.openflowplugin.openflow.md.core.session.SwitchConnectionCookieOFImpl.java

/**
 * compute pseudorandom key unique for given seed and {@link #auxiliaryId}
 * @param seed random int but fixed per session
 *///from   w  w  w . ja  v  a  2  s .c o m
public void init(int seed) {
    if (auxiliaryId <= 0) {
        throw new IllegalStateException("auxiliaryId must be greater than 0");
    }

    HashFunction mm32Hf = Hashing.murmur3_32(seed);
    Hasher hasher = mm32Hf.newHasher(8);
    hasher.putInt(auxiliaryId);
    long hash = 0xFFFFFFFFL & hasher.hash().asInt();
    cookie = (auxiliaryId << 24) | (hash >> 8);
}

---

From source file:com.github.nethad.clustermeister.api.Credentials.java

/**
 * Get a {@link Supplier} that returns the hex-string representation of the 
 * input's SHA-256 hash./*from www  .j  a v a2s  . co  m*/
 * 
 * The hash is only computed once and cached for further requests.
 * 
 * @param string the input.
 * @param charset   the charset of the input.
 * @return the hexadecimal string  representation of the {@code input}s hash code.
 */
protected Supplier<String> getSha256DigestSupplier(final String string, final Charset charset) {

    return Suppliers.memoize(new Supplier<String>() {

        @Override
        public String get() {
            if (string == null || string.isEmpty()) {
                return string;
            }
            HashFunction hf = Hashing.sha256();
            HashCode hc = hf.newHasher(string.length()).putString(string, charset).hash();
            return hc.toString();
        }
    });
}

---

From source file:org.fim.model.State.java

public String hashState() {
    HashFunction hashFunction = Hashing.sha512();
    Hasher hasher = hashFunction.newHasher(Constants._10_MB);
    hashObject(hasher);//from   ww  w  .j av a 2 s  .c  o  m
    HashCode hash = hasher.hash();
    return hash.toString();
}

---