com.google.enterprise.connector.util

Class Base64ChecksumGenerator

java.lang.Object

com.google.enterprise.connector.util.BasicChecksumGenerator

com.google.enterprise.connector.util.Base64ChecksumGenerator

All Implemented Interfaces:

ChecksumGenerator

public class Base64ChecksumGenerator
extends BasicChecksumGenerator

An implementation of ChecksumGenerator that return Base64-encoded checksums using algorithms from java.security.MessageDigest.

Since:

2.8

See Also:

MessageDigest

Field Summary

Fields inherited from class com.google.enterprise.connector.util.BasicChecksumGenerator

MD2, MD5, SHA1, SHA256, SHA384, SHA512

Constructor Summary

Constructors

Constructor and Description
Base64ChecksumGenerator(java.lang.String algorithm) Constructs a Base64ChecksumGenerator that uses the specified message digest algorithm.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getChecksum(java.io.InputStream in) Returns a Base64 encoded representation of the message digest checksum of the input stream.

Methods inherited from class com.google.enterprise.connector.util.BasicChecksumGenerator

getChecksum

Methods inherited from class java.lang.Object

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

Constructor Detail

Base64ChecksumGenerator

public Base64ChecksumGenerator(java.lang.String algorithm)

Constructs a Base64ChecksumGenerator that uses the specified message digest algorithm. The supported algorithms are: "MD2", "MD5", "SHA-1", "SHA-256", "SHA-384", and "SHA-512"

Parameters:

algorithm - message digest algorithm

Method Detail

getChecksum

public java.lang.String getChecksum(java.io.InputStream in)
                             throws java.io.IOException

Returns a Base64 encoded representation of the message digest checksum of the input stream.

Specified by:

getChecksum in interface ChecksumGenerator

Overrides:

getChecksum in class BasicChecksumGenerator

Parameters:

in - input stream to create a checksum for

Returns:

a checksum for the bytes of in

Throws:

java.io.IOException - if there is an error reading the input stream