org.apache.hadoop.contrib.failmon
Class Anonymizer

java.lang.Object
  org.apache.hadoop.contrib.failmon.Anonymizer

public class Anonymizer
extends Object

This class provides anonymization to SerializedRecord objects. It anonymizes all hostnames, ip addresses and file names/paths that appear in EventRecords gathered from the logs and other system utilities. Such values are hashed using a cryptographically safe one-way-hash algorithm (MD5).

Constructor Summary

Anonymizer()

Method Summary

static SerializedRecord	anonymize(EventRecord er) Anonymize hostnames, ip addresses and file names/paths that appear in fields of an EventRecord, after it gets serialized into a SerializedRecord.
static SerializedRecord	anonymize(SerializedRecord sr) Anonymize hostnames, ip addresses and file names/paths that appear in fields of a SerializedRecord.
static String	getMD5Hash(String text) Create the MD5 digest of an input text.

Methods inherited from class java.lang.Object

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

Constructor Detail

Anonymizer

public Anonymizer()

Method Detail

anonymize

public static SerializedRecord anonymize(SerializedRecord sr)
                                  throws Exception

Anonymize hostnames, ip addresses and file names/paths that appear in fields of a SerializedRecord.

Parameters:

sr - the input SerializedRecord

Returns:

the anonymized SerializedRecord

Throws:

Exception

anonymize

public static SerializedRecord anonymize(EventRecord er)
                                  throws Exception

Anonymize hostnames, ip addresses and file names/paths that appear in fields of an EventRecord, after it gets serialized into a SerializedRecord.

Parameters:

er - the input EventRecord

Returns:

the anonymized SerializedRecord

Throws:

Exception

getMD5Hash

public static String getMD5Hash(String text)

Create the MD5 digest of an input text.

Parameters:

text - the input text

Returns:

the hexadecimal representation of the MD5 digest