BaseXAdESTimeStampDataStructureVerifier.java

/*
 * 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 java.util.List;
import xades4j.utils.ObjectUtils;

/**
 *
 * @author Luís
 */
class BaseXAdESTimeStampDataStructureVerifier implements PropertyDataObjectStructureVerifier
{

    private final String propName;

    public BaseXAdESTimeStampDataStructureVerifier(String propName)
    {
        this.propName = propName;
    }

    @Override
    public void verifyStructure(PropertyDataObject propData) throws PropertyDataStructureException
    {
        BaseXAdESTimeStampData tsData = (BaseXAdESTimeStampData) propData;

        if (null == tsData.getCanonicalizationAlgorithm())
        {
            throw new PropertyDataStructureException("canonicalization algorithm not specified", propName);
        }

        List<byte[]> tsTokens = tsData.getTimeStampTokens();
        if (tsTokens.isEmpty())
        {
            throw new PropertyDataStructureException("no time stamp tokens", propName);
        }

        if (ObjectUtils.anyNull(tsTokens))
        {
            throw new PropertyDataStructureException("null time stamp token", propName);
        }
    }
}