/*
 * $Id: XmpArray.java 3373 2008-05-12 16:21:24Z xlv $
 *
 * Copyright 2005 by Bruno Lowagie.
 *
 * The contents of this file are subject to the Mozilla Public License Version 1.1
 * (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the License.
 *
 * The Original Code is 'iText, a free JAVA-PDF library'.
 *
 * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
 * the Initial Developer are Copyright (C) 1999-2005 by Bruno Lowagie.
 * All Rights Reserved.
 * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
 * are Copyright (C) 2000-2005 by Paulo Soares. All Rights Reserved.
 *
 * Contributor(s): all the names of the contributors are added in the source code
 * where applicable.
 *
 * Alternatively, the contents of this file may be used under the terms of the
 * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
 * provisions of LGPL are applicable instead of those above.  If you wish to
 * allow use of your version of this file only under the terms of the LGPL
 * License and not to allow others to use your version of this file under
 * the MPL, indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by the LGPL.
 * If you do not delete the provisions above, a recipient may use your version
 * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE 
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the MPL as stated above or under the terms of the GNU
 * Library General Public License as published by the Free Software Foundation;
 * either version 2 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU LIBRARY GENERAL PUBLIC LICENSE for more
 * details.
 *
 * If you didn't download this code from the following link, you should check if
 * you aren't using an obsolete version:
 * http://www.lowagie.com/iText/
 */

package com.lowagie.text.xml.xmp;

import java.util.ArrayList;
import java.util.Iterator;

/**
 * StringBuffer to construct an XMP array.
 */
public class XmpArray extends ArrayList {

	private static final long serialVersionUID = 5722854116328732742L;
	/** An array that is unordered. */
	public static final String UNORDERED = "rdf:Bag";
	/** An array that is ordered. */
	public static final String ORDERED = "rdf:Seq";
	/** An array with alternatives. */
	public static final String ALTERNATIVE = "rdf:Alt";
	
	/** the type of array. */
	protected String type;
	
	/**
	 * Creates an XmpArray.
	 * @param type the type of array: UNORDERED, ORDERED or ALTERNATIVE.
	 */
	public XmpArray(String type) {
		this.type = type;
	}
	
	/**
	 * Returns the String representation of the XmpArray.
	 * @return a String representation
	 */
	public String toString() {
		StringBuffer buf = new StringBuffer("<");
		buf.append(type);
		buf.append('>');
		String s;
		for (Iterator i = iterator(); i.hasNext(); ) {
			s = (String) i.next();
			buf.append("<rdf:li>");
			buf.append(XmpSchema.escape(s));
			buf.append("</rdf:li>");
		}
		buf.append("</");
		buf.append(type);
		buf.append('>');
		return buf.toString();
	}
}