Example usage for com.google.common.hash Hashing md5

Introduction

In this page you can find the example usage for com.google.common.hash Hashing md5.

Prototype

public static HashFunction md5()

Source Link

Document

Returns a hash function implementing the MD5 hash algorithm (128 hash bits) by delegating to the MD5 MessageDigest .

Usage

From source file:com.dangdang.ddframe.job.internal.reg.RegistryCenterFactory.java

/**
 * .//from  w  w  w.  jav  a2s .  c  o m
 *
 * @param connectString 
 * @param namespace ??
 * @param digest ?
 * @return 
 */
public static CoordinatorRegistryCenter createCoordinatorRegistryCenter(final String connectString,
        final String namespace, final Optional<String> digest) {
    Hasher hasher = Hashing.md5().newHasher().putString(connectString, Charsets.UTF_8).putString(namespace,
            Charsets.UTF_8);
    if (digest.isPresent()) {
        hasher.putString(digest.get(), Charsets.UTF_8);
    }
    HashCode hashCode = hasher.hash();
    if (registryCenterMap.containsKey(hashCode)) {
        return registryCenterMap.get(hashCode);
    }
    ZookeeperConfiguration zkConfig = new ZookeeperConfiguration(connectString, namespace);
    if (digest.isPresent()) {
        zkConfig.setDigest(digest.get());
    }
    CoordinatorRegistryCenter result = new ZookeeperRegistryCenter(zkConfig);
    result.init();
    registryCenterMap.putIfAbsent(hashCode, result);
    return result;
}

From source file:com.streamsets.pipeline.lib.hashing.HashingUtil.java

public static HashFunction getHasher(String hashAlgorithm) {
    switch (hashAlgorithm) {
    case "murmur3_128":
        return Hashing.murmur3_128();
    case "MD5":
        return Hashing.md5();
    case "SHA-1":
        return Hashing.sha1();
    case "SHA-256":
        return Hashing.sha256();
    default:// w  w  w.  java2 s. c  o m
        throw new IllegalArgumentException(Utils.format("Unsupported Hashing Algorithm: {}", hashAlgorithm));
    }
}

From source file:com.mac.abstractrepository.db.common.IdGenerator.java

public default void generateId(Field idField, String... values)
        throws IllegalArgumentException, IllegalAccessException {
    if (Objects.nonNull(idField) && Objects.nonNull(values) && values.length > 0) {
        Class<?> type = idField.getType();
        if (type == String.class) {
            HashFunction hf = Hashing.md5();
            Hasher hasher = hf.newHasher();
            for (String str : values) {
                if (Objects.isNull(str) || str.isEmpty()) {
                    return;
                }//  www.j  ava  2s.c  o  m
                hasher.putString(str, Charsets.UTF_8);
            }
            HashCode hc = hasher.hash();
            String hash = hc.toString();
            if (Objects.isNull(hash)) {
                return;
            }
            idField.setAccessible(true);
            idField.set(this, hash);
            idField.setAccessible(false);
        }
    }
}

From source file:com.dangdang.ddframe.job.lite.lifecycle.internal.reg.RegistryCenterFactory.java

/**
 * .//from  w w  w .  j av a  2  s. c o m
 *
 * @param connectString 
 * @param namespace ??
 * @param digest ?
 * @return 
 */
public static CoordinatorRegistryCenter createCoordinatorRegistryCenter(final String connectString,
        final String namespace, final Optional<String> digest) {
    Hasher hasher = Hashing.md5().newHasher().putString(connectString, Charsets.UTF_8).putString(namespace,
            Charsets.UTF_8);
    if (digest.isPresent()) {
        hasher.putString(digest.get(), Charsets.UTF_8);
    }
    HashCode hashCode = hasher.hash();
    CoordinatorRegistryCenter result = REG_CENTER_REGISTRY.get(hashCode);
    if (null != result) {
        return result;
    }
    ZookeeperConfiguration zkConfig = new ZookeeperConfiguration(connectString, namespace);
    if (digest.isPresent()) {
        zkConfig.setDigest(digest.get());
    }
    result = new ZookeeperRegistryCenter(zkConfig);
    result.init();
    REG_CENTER_REGISTRY.put(hashCode, result);
    return result;
}

From source file:lumbermill.Fingerprint.java

/**
 * Creates an MD5 hash based on the configured source string and stores it as
 * metadata under the field name 'fingerprint' (using same name as logstash).
 *
 * It is up to the user to create the source string to be used as fingerprint.
 * Best practice to separate each 'word' with a char, like a pipe (|) char to prevent
 * any unexpected behaviour. Read more at https://github.com/google/guava/wiki/HashingExplained.
 *
 * <pre>/*from w w w .  j  av a  2s  . c  o  m*/
 *
 * Groovy usage that creates a hash from two fields:
 *  {@code
 * fingerprint.md5 ('{message}|{@timestamp}')
 * }
 * </pre>
 */
public static <E extends Event> Func1<E, Observable<E>> md5(String sourcePattern) {
    StringTemplate template = StringTemplate.compile(sourcePattern);

    return e -> {
        String sourceValue = template.format(e).get();
        String hashAsHex = Hashing.md5().hashString(sourceValue, Charsets.UTF_8).toString();
        if (LOGGER.isTraceEnabled()) {
            LOGGER.trace("Fingerprint of {} => {}", sourceValue, hashAsHex);
        }
        // as Metadata
        return e.put("fingerprint", hashAsHex).toObservable();
    };
}

From source file:org.gradle.api.internal.hash.DefaultFileHasher.java

private static Hasher createFileHasher() {
    Hasher hasher = Hashing.md5().newHasher();
    hasher.putBytes(SIGNATURE);
    return hasher;
}

From source file:org.gradle.internal.hash.DefaultFileContentHasherFactory.java

@Override
public Hasher create() {
    Hasher hasher = Hashing.md5().newHasher();
    hasher.putBytes(SIGNATURE);
    return hasher;
}

From source file:documents.Document.java

public int hashCode() {
    Hasher hf = Hashing.md5().newHasher();
    metadata.forEach((k, v) -> hf.putString(v, Charset.defaultCharset()));
    return hf.hash().asInt();
}

From source file:co.cask.tigon.internal.app.runtime.flow.FlowUtils.java

/**
 * Generates a queue consumer groupId for the given flowlet in the given program id.
 *//*from  w w w .j a  v  a 2 s. c  o m*/
public static long generateConsumerGroupId(String flowId, String flowletId) {
    return Hashing.md5().newHasher().putString(flowId).putString(flowletId).hash().asLong();
}

From source file:ome.util.checksum.MD5ChecksumProviderImpl.java

public MD5ChecksumProviderImpl() {
    super(Hashing.md5());
}