org.apache.hadoop.tools.rumen.anonymization
Class WordListAnonymizerUtility

java.lang.Object
  org.apache.hadoop.tools.rumen.anonymization.WordListAnonymizerUtility

public class WordListAnonymizerUtility
extends Object

Utility class to handle commonly performed tasks in a DefaultAnonymizableDataType using a WordList for anonymization. //TODO There is no caching for saving memory.

Field Summary

static String[]

KNOWN_WORDS

Constructor Summary

WordListAnonymizerUtility()

Method Summary

static String[]	extractSuffix(String data, String[] suffixes) Extracts a known suffix from the given data.
static boolean	hasSuffix(String data, String[] suffixes) Checks if the given data has a known suffix.
static boolean	isKnownData(String data) Checks if the given data is known.
static boolean	isKnownData(String data, String[] knownWords) Checks if the given data is known.
static boolean	needsAnonymization(String data) Checks if the data needs anonymization.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

KNOWN_WORDS

public static final String[] KNOWN_WORDS

Constructor Detail

WordListAnonymizerUtility

public WordListAnonymizerUtility()

Method Detail

needsAnonymization

public static boolean needsAnonymization(String data)

Checks if the data needs anonymization. Typically, data types which are numeric in nature doesn't need anonymization.

hasSuffix

public static boolean hasSuffix(String data,
                                String[] suffixes)

Checks if the given data has a known suffix.

extractSuffix

public static String[] extractSuffix(String data,
                                     String[] suffixes)

Extracts a known suffix from the given data.

Throws:

RuntimeException - if the data doesn't have a suffix. Use hasSuffix(String, String[]) to make sure that the given data has a suffix.

isKnownData

public static boolean isKnownData(String data)

Checks if the given data is known. This API uses KNOWN_WORDS to detect if the given data is a commonly used (so called 'known') word.

isKnownData

public static boolean isKnownData(String data,
                                  String[] knownWords)

Checks if the given data is known.