/*
 * Copyright 2010 University Corporation for Advanced Internet Development, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package edu.internet2.middleware.shibboleth.wayf.idpdisco;

import org.opensaml.common.impl.AbstractSAMLObjectUnmarshaller;
import org.opensaml.common.xml.SAMLConstants;
import org.opensaml.saml2.metadata.LocalizedString;
import org.opensaml.xml.LangBearing;
import org.opensaml.xml.XMLObject;
import org.opensaml.xml.io.UnmarshallingException;
import org.w3c.dom.Attr;

/**
 * A thread-safe Unmarshaller for {@link org.opensaml.saml2.metadata.Logo} objects.
 */
public class LogoUnmarshaller extends AbstractSAMLObjectUnmarshaller {

    
    /** {@inheritDoc} */
    protected void processElementContent(XMLObject samlObject, String elementContent) {
        Logo logo = (Logo) samlObject;

        LocalizedString url = logo.getURL();
        if (url == null) {
            url = new LocalizedString();
        }

        url.setLocalizedString(elementContent);
        logo.setURL(url);
    }
    
    /**  {@inheritDoc} */
    protected void processAttribute(XMLObject samlObject, Attr attribute) throws UnmarshallingException {
        Logo logo = (Logo) samlObject;

        if (attribute.getLocalName().equals(LangBearing.XML_LANG_ATTR_LOCAL_NAME)
                && SAMLConstants.XML_NS.equals(attribute.getNamespaceURI())) {

            LocalizedString url = logo.getURL();
            if (url == null) {
                url = new LocalizedString();
            }

            url.setLanguage(attribute.getValue());
            logo.setURL(url);
        } else if (attribute.getLocalName().equals(Logo.HEIGHT_ATTR_NAME)) {
            logo.setHeight(Integer.valueOf(attribute.getValue()));
        } else if (attribute.getLocalName().equals(Logo.WIDTH_ATTR_NAME)) {
            logo.setWidth(Integer.valueOf(attribute.getValue()));
        }
    }

}