/*   
 *  Copyright 1999-2004 The Apache Software Foundation
 *
 *  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 sessions;

import java.io.Serializable;
import java.util.Vector;

import javax.servlet.http.HttpServletRequest;

public class DummyCart implements  Serializable{
    Vector v = new Vector();
    String submit = null;
    String item = null;
    
    private void addItem(String name) {
	v.addElement(name);
    }

    private void removeItem(String name) {
	v.removeElement(name);
    }

    public void setItem(String name) {
	item = name;
    }
    
    public void setSubmit(String s) {
	submit = s;
    }

    public String[] getItems() {
	String[] s = new String[v.size()];
	v.copyInto(s);
	return s;
    }
    
    public void processRequest(HttpServletRequest request) {
	// null value for submit - user hit enter instead of clicking on 
	// "add" or "remove"
	if (submit == null) 
	    addItem(item);

	if (submit.equals("add"))
	    addItem(item);
	else if (submit.equals("remove")) 
	    removeItem(item);
	
	// reset at the end of the request
	reset();
    }

    // reset
    private void reset() {
	submit = null;
	item = null;
    }
}