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

Introduction

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

Prototype

HashCode hashString(CharSequence input, Charset charset);

Source Link

Document

Shortcut for newHasher().putString(input, charset).hash() .

Usage

From source file:com.qwazr.utils.HashUtils.java

public static final int getMurmur3Mod(final String hashString, Charset charset, final int mod) {
    HashFunction m3 = Hashing.murmur3_128();
    if (charset == null)
        charset = Charset.defaultCharset();
    return (Math.abs(m3.hashString(hashString, charset).asInt()) % mod);
}

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From source file:com.android.build.gradle.tasks.JackPreDexTransform.java

/**
 * Returns a unique file name for the converted library, even if there are 2 libraries with the
 * same file names (but different paths)
 *
 * @param inputFile the library/*ww  w.j  av  a2s .  c o  m*/
 */
@NonNull
public static String getJackFileName(@NonNull File inputFile) {
    // get the filename
    String name = inputFile.getName();
    // remove the extension
    int pos = name.lastIndexOf('.');
    if (pos != -1) {
        name = name.substring(0, pos);
    }

    // add a hash of the original file path.
    String input = inputFile.getAbsolutePath();
    HashFunction hashFunction = Hashing.sha1();
    HashCode hashCode = hashFunction.hashString(input, Charsets.UTF_16LE);

    return name + "-" + hashCode.toString();
}

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From source file:com.qubole.rubix.spi.CacheConfig.java

public static String getLocalDirFor(String remotePath, Configuration conf) {
    int numDisks = numDisks(conf);
    int numBuckets = 100 * numDisks;
    HashFunction hf = Hashing.murmur3_32();
    HashCode hc = hf.hashString(remotePath, Charsets.UTF_8);
    int bucket = Math.abs(hc.asInt()) % numBuckets;
    int dirNum = (bucket / numDisks) % numDisks;

    String dirname = getDirPath(conf, dirNum) + CacheConfig.fileCacheDirSuffixConf;
    return dirname;
}

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From source file:com.android.build.gradle.tasks.PreDex.java

/**
 * Returns a unique File for the pre-dexed library, even
 * if there are 2 libraries with the same file names (but different
 * paths)// w ww  . j av  a  2  s. c  o  m
 *
 * If multidex is enabled the return File is actually a folder.
 *
 * @param outFolder the output folder.
 * @param inputFile the library.
 */
@NonNull
static File getDexFileName(@NonNull File outFolder, @NonNull File inputFile) {
    // get the filename
    String name = inputFile.getName();
    // remove the extension
    int pos = name.lastIndexOf('.');
    if (pos != -1) {
        name = name.substring(0, pos);
    }

    // add a hash of the original file path.
    String input = inputFile.getAbsolutePath();
    HashFunction hashFunction = Hashing.sha1();
    HashCode hashCode = hashFunction.hashString(input, Charsets.UTF_16LE);

    return new File(outFolder, name + "-" + hashCode.toString() + SdkConstants.DOT_JAR);
}

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From source file:com.android.build.gradle.tasks.JillTask.java

/**
 * Returns a unique File for the converted library, even if there are 2 libraries with the same
 * file names (but different paths)/*w  w  w  .j  a v  a 2 s .c  o m*/
 *
 * @param outFolder the output folder.
 * @param inputFile the library
 */
@NonNull
public static File getJackFileName(@NonNull File outFolder, @NonNull File inputFile) {
    // get the filename
    String name = inputFile.getName();
    // remove the extension
    int pos = name.lastIndexOf('.');
    if (pos != -1) {
        name = name.substring(0, pos);
    }

    // add a hash of the original file path.
    String input = inputFile.getAbsolutePath();
    HashFunction hashFunction = Hashing.sha1();
    HashCode hashCode = hashFunction.hashString(input, Charsets.UTF_16LE);

    return new File(outFolder, name + "-" + hashCode.toString() + SdkConstants.DOT_JAR);
}

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From source file:dodola.anole.lib.FileUtils.java

/**
 * Chooses a directory name, based on a JAR file name, considering exploded-aar and classes.jar.
 *///  ww  w  .j  a va 2  s . co  m

public static String getDirectoryNameForJar(File inputFile) {
    // add a hash of the original file path.
    HashFunction hashFunction = Hashing.sha1();
    HashCode hashCode = hashFunction.hashString(inputFile.getAbsolutePath(), Charsets.UTF_16LE);

    String name = Files.getNameWithoutExtension(inputFile.getName());
    if (name.equals("classes") && inputFile.getAbsolutePath().contains("exploded-aar")) {
        // This naming scheme is coming from DependencyManager#computeArtifactPath.
        File versionDir = inputFile.getParentFile().getParentFile();
        File artifactDir = versionDir.getParentFile();
        File groupDir = artifactDir.getParentFile();

        name = Joiner.on('-').join(groupDir.getName(), artifactDir.getName(), versionDir.getName());
    }
    name = name + "_" + hashCode.toString();
    return name;
}

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From source file:com.android.utils.FileUtils.java

/**
 * Chooses a directory name, based on a JAR file name, considering exploded-aar and classes.jar.
 *///  w  ww  . j a  v  a  2  s.c  om
@NonNull
public static String getDirectoryNameForJar(@NonNull File inputFile) {
    // add a hash of the original file path.
    HashFunction hashFunction = Hashing.sha1();
    HashCode hashCode = hashFunction.hashString(inputFile.getAbsolutePath(), Charsets.UTF_16LE);

    String name = Files.getNameWithoutExtension(inputFile.getName());
    if (name.equals("classes") && inputFile.getAbsolutePath().contains("exploded-aar")) {
        // This naming scheme is coming from DependencyManager#computeArtifactPath.
        File versionDir = inputFile.getParentFile().getParentFile();
        File artifactDir = versionDir.getParentFile();
        File groupDir = artifactDir.getParentFile();

        name = Joiner.on('-').join(groupDir.getName(), artifactDir.getName(), versionDir.getName());
    }
    name = name + "_" + hashCode.toString();
    return name;
}

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From source file:com.taobao.android.builder.tasks.app.databinding.AwbDataBindingMergeArtifactsTask.java

/**
 * Files exported from jars are exported into a certain folder so that we can rebuild them
 * when the related jar file changes./*from ww  w . j a v  a  2s. c om*/
 */
@NonNull
private static String getJarFilePrefix(@NonNull File inputFile) {
    // get the filename
    String name = inputFile.getName();
    // remove the extension
    int pos = name.lastIndexOf('.');
    if (pos != -1) {
        name = name.substring(0, pos);
    }

    // add a hash of the original file path.
    String input = inputFile.getAbsolutePath();
    HashFunction hashFunction = Hashing.sha1();
    HashCode hashCode = hashFunction.hashString(input, Charsets.UTF_16LE);

    return name + "-" + hashCode.toString();
}

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From source file:net.jamcraft.chowtime.remote.RemoteMain.java

public static void HashCTD() {
    try {/*from   ww w  .  j  a  va 2  s.  c  o m*/
        HashFunction hasher = Hashing.md5();

        FileReader fis = new FileReader(ModConstants.DYN_LOC + "/local.ctd");
        BufferedReader br = new BufferedReader(fis);

        String line = br.readLine();
        String file = "";
        while (line != null) {
            file += line;
            line = br.readLine();
        }

        HashCode hash = hasher.hashString(file, Charset.defaultCharset());

        ChowTime.logger.info("Local.ctd hash digest(in hex format):: " + hash.toString());
        localHash = hash.toString();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:com.android.build.gradle.internal.transforms.DexTransform.java

/**
 * Returns the hash of a file./* www  .  java 2 s  .c  o  m*/
 *
 * If the file is a folder, it's a hash of its path. If the file is a file, then
 * it's a hash of the file itself.
 *
 * @param file the file to hash
 */
@NonNull
private static String getFileHash(@NonNull File file) throws IOException {
    HashCode hashCode;
    HashFunction hashFunction = Hashing.sha1();
    if (file.isDirectory()) {
        hashCode = hashFunction.hashString(file.getPath(), Charsets.UTF_16LE);
    } else {
        hashCode = Files.hash(file, hashFunction);
    }

    return hashCode.toString();
}

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