org.nees.metadata.util
Class Base64IdFactory

java.lang.Object
  org.nees.metadata.util.IdFactory
      org.nees.metadata.util.EncodedIdFactory
          org.nees.metadata.util.Base64IdFactory

Direct Known Subclasses:

LogicalNameIdFactory, X509IdFactory

public class Base64IdFactory

extends EncodedIdFactory

Generates ID's whose local parts are base64-encoded. This is to facilitate using arbitrary octet strings as local parts even if they do not conform to the subset of XML nmtoken supported by NMDS. Also provides the optional convenience of encoding a character string into an octet string. Base64 encoding is made to conform to Nmtoken by converting + to _ and / to .

For instance this code:

 HexIdFactory hif = new HexIdFactory();
 hif.setPrefix("x");
 Identifier id = hif.newId("/C=US/O=National Computational Science Alliance/CN=Joseph M. Futrelle");");
 System.out.println(id.getLocalPart());
 

Will produce the following output:

x... FIXME












Field Summary

 
Fields inherited from class org.nees.metadata.util.EncodedIdFactory
DEFAULT_STRING_ENCODING
 



Constructor Summary
Base64IdFactory()



           
Base64IdFactory(java.lang.String namespaceURI)



          Creates a factory that produces Identifiers in a given
 namespace.
Base64IdFactory(java.lang.String namespaceURI,
                java.lang.String prefix)



           
 



Method Summary




 byte[]
decode(java.lang.String s)



          Base64 decodes the string.



 java.lang.String
encode(byte[] octets)



          Base64 encodes the data.



 java.lang.String
getDefaultPrefix()



           


 
Methods inherited from class org.nees.metadata.util.EncodedIdFactory
decodeToOctets, decodeToString, decodeToString, getPrefix, getStringEncoding, newId, newId, newId, newId, setPrefix, setStringEncoding
 
Methods inherited from class org.nees.metadata.util.IdFactory
getFactory, getFactory, getNamespaceURI, newId, newIdPromise, setNamespaceURI
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 








Constructor Detail



Base64IdFactory
public Base64IdFactory()





Base64IdFactory
public Base64IdFactory(java.lang.String namespaceURI)

Creates a factory that produces Identifiers in a given
 namespace.

Parameters:
namespaceURI - the namespace URI



Base64IdFactory
public Base64IdFactory(java.lang.String namespaceURI,
                       java.lang.String prefix)

Parameters:
namespaceURI - the namespace URI
prefix - the prefix to append to the local part




Method Detail



getDefaultPrefix
public java.lang.String getDefaultPrefix()


Overrides:
getDefaultPrefix in class EncodedIdFactory








encode
public java.lang.String encode(byte[] octets)

Base64 encodes the data. Also changes "+" to "_" and "/" to "." and "=" to "-".


Specified by:
encode in class EncodedIdFactory


Parameters:
octets - the binary data to encode
Returns:
the String encoding of it





decode
public byte[] decode(java.lang.String s)

Base64 decodes the string. Also changes "+" to "_" and "/" to "."


Specified by:
decode in class EncodedIdFactory