Example usage for org.apache.hadoop.io MD5Hash digest

Introduction

In this page you can find the example usage for org.apache.hadoop.io MD5Hash digest.

Prototype

null digest

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Usage

From source file:org.freeeed.services.Util.java

License:Apache License

public static MD5Hash createKeyHash(File file, Metadata metadata) throws IOException {
    String extension = Util.getExtension(file.getName());

    if ("eml".equalsIgnoreCase(extension)) {
        assert (metadata != null);
        String hashNames = EmailProperties.getInstance().getProperty(EmailProperties.EMAIL_HASH_NAMES);
        String[] hashNamesArr = hashNames.split(",");

        StringBuilder data = new StringBuilder();

        for (String hashName : hashNamesArr) {
            String value = metadata.get(hashName);
            if (value != null) {
                data.append(value);// ww  w  .  j ava  2 s . c  o  m
                data.append(" ");
            }
        }
        return MD5Hash.digest(data.toString());
    } else {
        MD5Hash key;
        try ( //use MD5 of the input file as Hadoop key
                FileInputStream fileInputStream = new FileInputStream(file)) {
            key = MD5Hash.digest(fileInputStream);
        }
        return key;
    }
}