/*******************************************************************************
 * Copyright (c) 2001, 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Jens Lukowski/Innoopract - initial renaming/restructuring
 *     
 *******************************************************************************/
package org.eclipse.wst.xml.core.internal.modelquery;

import org.eclipse.wst.common.uriresolver.internal.provisional.URIResolverPlugin;
import org.eclipse.wst.sse.core.internal.util.URIResolver;


// TODO cs : remove this class and utilize the common URIResolver directly
// We need to update some of the ModelQuery related code to pass the 'baseLocation' thru
// and then there'll be node need for this class. 
// 
public class XMLCatalogIdResolver implements org.eclipse.wst.common.uriresolver.internal.provisional.URIResolver {
	protected String resourceLocation;

	protected URIResolver uriresolver;

	private XMLCatalogIdResolver() {
		super();
	}
	private XMLCatalogIdResolver(String resourceLocation) {
		this.resourceLocation = resourceLocation;
	}

	public XMLCatalogIdResolver(String resourceLocation, URIResolver uriresolver) {
		this(resourceLocation);
		this.uriresolver = uriresolver;
	}


	/**
	 * Gets the resourceLocation.
	 * 
	 * @return Returns a String
	 */
	private String getResourceLocation() {
		String location = resourceLocation;
		if (location == null) {
			if (uriresolver != null)
				location = uriresolver.getFileBaseLocation();
		}
		return location;
	}


	public String resolve(String base, String publicId, String systemId) {

		String result = systemId;
		
		if (base == null) {
			base = getResourceLocation();
		}
		
		result = URIResolverPlugin.createResolver().resolve(base, publicId, systemId);	
		return result;
	}
    
    public String resolvePhysicalLocation(String baseLocation, String publicId, String logicalLocation) {
      return URIResolverPlugin.createResolver().resolvePhysicalLocation(baseLocation, publicId, logicalLocation);
    }
}