package at.gv.egovernment.moa.util; import java.io.IOException; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.xml.sax.EntityResolver; import org.xml.sax.InputSource; import org.xml.sax.SAXException; /** * Implementation of the <code>org.xml.sax.EntityResolver</code>, * for use by a <code>org.apache.xerces.parsers.DOMParser</code>. * * @author Patrick Peck * @version $Id$ */ public class EntityResolverChain implements EntityResolver { /** The <code>EntityResolver</code>s in the chain. */ private List resolvers = new ArrayList(); /** * @see org.xml.sax.EntityResolver#resolveEntity(java.lang.String, java.lang.String) */ public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException { Iterator iter; for (iter = resolvers.iterator(); iter.hasNext(); ) { EntityResolver resolver = (EntityResolver) iter.next(); InputSource is = resolver.resolveEntity(publicId, systemId); if (is != null) { return is; } } return null; } /** * Add an <code>EntityResolver</code> to the chain. * * @param entityResolver The <code>EntityResolver</code> to add. */ public void addEntityResolver(EntityResolver entityResolver) { resolvers.add(entityResolver); } }