/*******************************************************************************
 * Copyright 2014 Federal Chancellery Austria
 * MOA-ID 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.id.protocols.oauth20.attributes;

import at.gv.egiz.eaaf.core.api.idp.IAttributeBuilder;
import at.gv.egiz.eaaf.core.api.idp.IAttributeGenerator;
import at.gv.egiz.eaaf.core.api.idp.IAuthData;
import at.gv.egiz.eaaf.core.api.idp.ISPConfiguration;
import at.gv.egiz.eaaf.core.exceptions.AttributeBuilderException;
import at.gv.egovernment.moa.id.protocols.oauth20.protocol.OAuth20AuthRequest;
import at.gv.egovernment.moa.util.MiscUtil;

public class OpenIdNonceAttribute implements IAttributeBuilder {
	
	public String getName() { 
		return "nonce";
	}
	
	public <ATT> ATT build(ISPConfiguration oaParam, IAuthData authData,
			IAttributeGenerator<ATT> g) throws AttributeBuilderException { 
		return g.buildStringAttribute(this.getName(), "", null);
	}
	
	public <ATT> ATT build(ISPConfiguration oaParam, IAuthData authData, OAuth20AuthRequest oAuthRequest,
			IAttributeGenerator<ATT> g) throws AttributeBuilderException { 
		if (MiscUtil.isNotEmpty(oAuthRequest.getNonce()))
			return g.buildStringAttribute(this.getName(), "", oAuthRequest.getNonce());
		else
			return null;
	}
	
	public <ATT> ATT buildEmpty(IAttributeGenerator<ATT> g) {
		return g.buildEmptyAttribute(this.getName(), "");
	}
	
}