se.swedenconnect.opensaml.xmlsec.signature.support.provider

Class ExtendedSignerProviderInitializer

java.lang.Object

se.swedenconnect.opensaml.xmlsec.signature.support.provider.ExtendedSignerProviderInitializer

All Implemented Interfaces:

Initializer

public class ExtendedSignerProviderInitializer
extends Object
implements Initializer

OpenSAML uses the Java service loader to load the SignerProvider that should be used. Any number of providers may be on the classpath and if we want to have a particular one loaded (and cached) by the Signer class we have to make sure that this one is before any other provider on the classpath. So, not an ideal case, but not a problem since the only provider used in a default setup is ApacheSantuarioSignerProviderImpl. But since we extend this class with workraounds for RSAPSS, we want to make sure that our ExtendedSignerProvider is loaded before the default provider, no matter how the classpath looks.

Author:

Martin Lindström (martin@idsec.se), Stefan Santesson (stefan@idsec.se)

Constructor Summary

Constructors

Constructor and Description
ExtendedSignerProviderInitializer()

Method Summary

Modifier and Type	Method and Description
void	init() The Signer class has a static signer provider cached.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtendedSignerProviderInitializer

public ExtendedSignerProviderInitializer()

Method Detail

init

public void init()
          throws InitializationException

The Signer class has a static signer provider cached. This provider is set the first time the Signer.signObject(org.opensaml.xmlsec.signature.Signature) method is called. So what we want to do is to modify the classpath so that the resource that holds our extended signer provider is always found first. Once, that is done, we invoke the signObject method which will set the cached provider to our implementation.

Specified by:

init in interface Initializer

Throws:

InitializationException