/*
 * Copyright (c) 2003-onwards Shaven Puppy Ltd
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * * Neither the name of 'Shaven Puppy' nor the names of its contributors
 *   may be used to endorse or promote products derived from this software
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.shavenpuppy.jglib.resources;

import java.io.IOException;
import java.util.List;

import org.w3c.dom.Element;

import com.shavenpuppy.jglib.Resource;
import com.shavenpuppy.jglib.XMLResourceWriter;
import com.shavenpuppy.jglib.util.XMLUtil;

/**
 * An array of strings. Each string held between <item> tags.
 * @author foo
 */
public class StringArray extends Resource {

	private static final long serialVersionUID = 1L;

	/** The strings */
	private String[] string;

	/**
	 * C'tor
	 */
	public StringArray() {
		super();
	}

	/**
	 * @param name
	 */
	public StringArray(String name) {
		super(name);
	}

	/* (non-Javadoc)
	 * @see com.shavenpuppy.jglib.Resource#load(org.w3c.dom.Element, com.shavenpuppy.jglib.Resource.Loader)
	 */
	@Override
	public void load(Element element, Loader loader) throws Exception {
		List<Element> children = XMLUtil.getChildren(element, "item");
		string = new String[children.size()];
		for (int i = 0; i < children.size(); i ++) {
			Element child = children.get(i);
			string[i] = child.getTextContent().trim();
		}
	}

	/**
	 * Get the resource at the specified index
	 * @param idx
	 * @return
	 */
	public String getString(int idx) {
		return string[idx];
	}

	/**
	 * @return the number of resources
	 */
	public int getNumStrings() {
		return string.length;
	}

	/* (non-Javadoc)
	 * @see com.shavenpuppy.jglib.Resource#doToXML(com.shavenpuppy.jglib.XMLResourceWriter)
	 */
	@Override
	protected void doToXML(XMLResourceWriter writer) throws IOException {
		for (int i = 0; i < string.length; i ++) {
			writer.writeTag("item");
			writer.writeText(string[i]);
			writer.closeTag();
		}
	}
}