/*******************************************************************************
 *******************************************************************************/
package at.gv.egiz.eaaf.modules.pvp2.impl.metadata;

import java.util.ArrayList;
import java.util.List;

import org.opensaml.saml2.metadata.provider.FilterException;
import org.opensaml.saml2.metadata.provider.MetadataFilter;
import org.opensaml.xml.XMLObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/**
 * @author tlenz
 *
 */
public class MetadataFilterChain implements MetadataFilter {
	private static final Logger log = LoggerFactory.getLogger(MetadataFilterChain.class);
		
	
	private List<MetadataFilter> filters = new ArrayList<MetadataFilter>();
		
	/**
	 * Return all actually used Metadata filters
	 * 
	 * @return List of Metadata filters
	 */
	public List<MetadataFilter> getFilters() {
		return filters;
	}
	
	/**
	 * Add a new Metadata filter to filterchain
	 * 
	 * @param filter 
	 */
	public void addFilter(MetadataFilter filter) {
		filters.add(filter);
	}
	
	
	/* (non-Javadoc)
	 * @see org.opensaml.saml2.metadata.provider.MetadataFilter#doFilter(org.opensaml.xml.XMLObject)
	 */
	@Override
	public void doFilter(XMLObject arg0) throws FilterException {
		for (MetadataFilter filter : filters) {
			log.trace("Use EAAFMetadataFilter " + filter.getClass().getName());
			filter.doFilter(arg0);
		}

	}

}