xades4j.utils
Class TimeStampDigestInput

java.lang.Object
  xades4j.utils.TimeStampDigestInput

public class TimeStampDigestInput
extends Object

Helper class to build inputs for time-stamps. The digests for time-stamps are usually calculated over a concatenations of byte-streams, resulting from nodes and/or processed References, with the proper canonicalization if needed. This class provides methods to build a sequential input by adding DOM Nodes or References.

Author:

Luís

Constructor Summary

TimeStampDigestInput(String canonMethodUri)

Method Summary

void	addNode(Node n) Adds a Node to the input.
void	addReference(org.apache.xml.security.signature.Reference r) Adds a Reference to the input.
byte[]	getBytes() Gets the octet-stream corresponding to the actual state of the input.

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeStampDigestInput

public TimeStampDigestInput(String canonMethodUri)

Parameters:

canonMethodUri - the canonicalization method to be used, if needed

Throws:

NullPointerException - if canonMethodUri is null

Method Detail

addReference

public void addReference(org.apache.xml.security.signature.Reference r)
                  throws CannotAddDataToDigestInputException

Adds a Reference to the input. It is processed and the result is canonicalized if it is a node-set.

Parameters:

r - the reference to be added

Throws:

CannotAddDataToDigestInputException - if there is an error adding the reference

NullPointerException - if r is null

addNode

public void addNode(Node n)
             throws CannotAddDataToDigestInputException

Adds a Node to the input. The node is canonicalized.

Parameters:

n - the node to be added

Throws:

CannotAddDataToDigestInputException - if there is an error adding the node

NullPointerException - if n is null

getBytes

public byte[] getBytes()

Gets the octet-stream corresponding to the actual state of the input.

Returns:

the octet-stream (always a new instance)