org.opensaml.xml.signature

Class Signer

java.lang.Object

org.opensaml.xml.signature.Signer

public class Signer
extends Object

This class is responsible for creating the digital signatures for the given signable XMLObjects. This must be done as a seperate step because in order to support the following cases:

• Multiple signable objects appear in the DOM tree, in which case the order that the objects should be signed in is not known (e.g. object 1 could appear first in the tree, but contain a reference to signable object 2)
• The DOM tree resulting from marshalling of the XMLObject tree is grafted onto another DOM tree which may cause element ID conflicts that would invalidate the signature

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Signer() Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
private static Logger	getLogger() Get an SLF4J Logger.
static void	signObject(Signature signature) Signs a single XMLObject.
static void	signObjects(List<Signature> xmlObjects) Signs the given XMLObject in the order provided.

Methods inherited from class java.lang.Object

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

Constructor Detail

Signer

protected Signer()

Constructor.

Method Detail

signObjects

public static void signObjects(List<Signature> xmlObjects)
                        throws SignatureException

Signs the given XMLObject in the order provided.

Parameters:

xmlObjects - an orderded list of XMLObject to be signed

Throws:

SignatureException - thrown if there is an error computing the signature

signObject

public static void signObject(Signature signature)
                       throws SignatureException

Signs a single XMLObject.

Parameters:

signature - the signature to computer the signature on

Throws:

SignatureException - thrown if there is an error computing the signature

getLogger

private static Logger getLogger()

Get an SLF4J Logger.

Returns:

a Logger instance