~ubuntu-branches/ubuntu/oneiric/tuxguitar/oneiric

package org.herac.tuxguitar.gui.help.doc;

 

import java.io.File;

import java.io.IOException;

import java.util.List;

 

import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.parsers.ParserConfigurationException;

 

import org.w3c.dom.Document;

import org.w3c.dom.NamedNodeMap;

import org.w3c.dom.Node;

import org.w3c.dom.NodeList;

import org.xml.sax.SAXException;

 

public class DocItemReader {

        private static final String ITEM_TAG = "item";

        private static final String ATTRIBUTE_NAME = "name";

        private static final String ATTRIBUTE_URL = "url";

        

        public void loadHelpItems(List items,File file){

                if (file != null && file.exists()){

                        try {

                                Document doc = getDocument(file);

                                loadHelpItems(items,doc.getFirstChild());

                        } catch (Throwable throwable) {

                                throwable.printStackTrace();

                        }

                }

        }

        

        private void loadHelpItems(List items,Node node){

                NodeList listNode = node.getChildNodes();

                for (int i = 0; i < listNode.getLength(); i++) {

                        Node child = listNode.item(i);

                        String nameNode = child.getNodeName();

                        if (nameNode.equals(ITEM_TAG)) {

                                NamedNodeMap attributes = child.getAttributes();

                                DocItem item = new DocItem(getAttribute(ATTRIBUTE_NAME,attributes),getAttribute(ATTRIBUTE_URL,attributes));

                                loadHelpItems(item.getChildren(),child);

                                items.add(item);

                        }

                }

        }

        

        private String getAttribute(String attribute,NamedNodeMap map){

                Node node = map.getNamedItem(attribute);

                if(node != null){

                        return node.getNodeValue();

                }

                return null;

        }

        

        private Document getDocument(File file) throws ParserConfigurationException, SAXException, IOException {

                Document document = null;

                DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

                DocumentBuilder builder = factory.newDocumentBuilder();

                document = builder.parse(file);

                return document;

        }

}