/*
 * XAdES4j - A Java library for generation and verification of XAdES signatures.
 * Copyright (C) 2010 Luis Goncalves.
 *
 * XAdES4j is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 3 of the License, or any later version.
 *
 * XAdES4j is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with XAdES4j. If not, see <http://www.gnu.org/licenses/>.
 */
package xades4j.properties.data;

import xades4j.properties.ObjectIdentifier;
import xades4j.properties.SignaturePolicyIdentifierProperty;
import xades4j.utils.ObjectUtils;

/**
 *
 * @author Luís
 */
class SignaturePolicyDataStructureVerifier implements PropertyDataObjectStructureVerifier
{
    @Override
    public void verifyStructure(PropertyDataObject propData) throws PropertyDataStructureException
    {
        SignaturePolicyData sigPolicyData = (SignaturePolicyData)propData;

        String alg = sigPolicyData.getDigestAlgorithm();
        byte[] dig = sigPolicyData.getDigestValue();
        ObjectIdentifier id = sigPolicyData.getIdentifier();

        if (!ObjectUtils.allNull(alg, dig, id) && ObjectUtils.anyNull(alg, dig, id))
            throw new PropertyDataStructureException("all the properties must be specified", SignaturePolicyIdentifierProperty.PROP_NAME);
    }
}