/*
* Copyright 2003 Federal Chancellery Austria
* MOA-SPSS has been developed in a cooperation between BRZ, the Federal
* Chancellery Austria - ICT staff unit, and Graz University of Technology.
*
* Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
* the European Commission - subsequent versions of the EUPL (the "Licence");
* You may not use this work except in compliance with the Licence.
* You may obtain a copy of the Licence at:
* http://www.osor.eu/eupl/
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the Licence is distributed on an "AS IS" basis,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the Licence for the specific language governing permissions and
* limitations under the Licence.
*
* This product combines work with different licenses. See the "NOTICE" text
* file for details on the various modules and licenses.
* The "NOTICE" text file is part of the distribution. Any derivative works
* that you distribute must include a readable copy of the "NOTICE" text file.
*/
package at.gv.egovernment.moa.spss.api;
import at.gv.egovernment.moa.spss.MOAException;
import at.gv.egovernment.moa.spss.api.xmlsign.CreateXMLSignatureRequest;
import at.gv.egovernment.moa.spss.api.xmlsign.CreateXMLSignatureResponse;
import at.gv.egovernment.moa.spss.server.invoke.SignatureCreationServiceImpl;
/**
* Interface providing functions for signature creation.
*
* @author Patrick Peck
* @version $Id$
*/
public abstract class SignatureCreationService {
/** The default implementation class. */
private static final String DEFAULT_IMPLEMENTATION =
"at.gv.egovernment.moa.spss.server.invoke.SignatureCreationServiceImpl";
/** The single instance of this class. */
private static SignatureCreationService instance = null;
/**
* Get an instance of the SignatureCreationService
.
*
* @return A concrete instance of the SignatureCreationService
.
*/
public static synchronized SignatureCreationService getInstance() {
if (instance == null) {
try {
/*
DiscoverClass discover = new DiscoverClass();
instance =
(SignatureCreationService) discover.newInstance(
SignatureCreationService.class,
DEFAULT_IMPLEMENTATION);*/
instance = new SignatureCreationServiceImpl();
} catch (Exception e) {
// this can not happen since we provide a valid default
// implementation
}
}
return instance;
}
/**
* Create an XML signature.
*
* @param request Information on how to create the signature.
* @return A CreateXMLSignatureResponse
containing the
* signature.
* @throws MOAException Error in server side MOA module.
*/
public abstract CreateXMLSignatureResponse createXMLSignature(CreateXMLSignatureRequest request)
throws MOAException;
}