Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.File;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import android.util.Log;

public class Main {
    public static List<Map<String, String>> ReadFolderItemsFromFile(String path, String filename, String folderID) {

        List<Map<String, String>> results = new ArrayList<Map<String, String>>();

        try {
            File fXmlFile = new File(path, filename);
            DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
            Document doc = dBuilder.parse(fXmlFile);
            doc.getDocumentElement().normalize();

            NodeList nList = null;

            if (folderID == null) {
                // get all the children of the root
                nList = doc.getChildNodes().item(0).getChildNodes();
            } else {
                //Log.d("ReadItemsFromFile", "Current FolderID: " + folderID);

                NodeList folderList = doc.getElementsByTagName("folder");

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

                    Node curNode = folderList.item(i);
                    if (curNode.getNodeType() == Node.ELEMENT_NODE) {
                        String curNodeId = ((Element) curNode).getElementsByTagName("id").item(0).getTextContent();
                        //Log.d("ReadItemsFromFile", "Number of items: " + curNodeId);

                        if (curNodeId.equals(folderID)) {
                            //Log.d("ReadItemsFromFile", "Found the folder");
                            NodeList folderChildren = curNode.getChildNodes();
                            for (int j = 0; j < folderChildren.getLength(); j++) {
                                //Log.d("ReadItemsFromFile", "node name: " + folderChildren.item(j).getNodeName());

                                if (folderChildren.item(j).getNodeName().equals("contents")) {
                                    //Log.d("ReadItemsFromFile", "found the contents child");
                                    nList = folderChildren.item(j).getChildNodes();
                                    break;
                                }
                            }
                            break;
                        }
                    }
                }
            }

            if (nList != null) {
                Log.d("ReadItemsFromFile", "-----------------------");
                Log.d("ReadItemsFromFile", "Number of items: " + nList.getLength());

                for (int temp = 0; temp < nList.getLength(); temp++) {

                    Node nNode = nList.item(temp);
                    //Log.d("ReadItemsFromFile", temp + ". node type: " + nNode.getNodeType());
                    if (nNode.getNodeType() == Node.ELEMENT_NODE) {
                        Element eElement = (Element) nNode;

                        Node elementNameNode = eElement.getElementsByTagName("name").item(0);
                        String elementNameString = elementNameNode.getTextContent();
                        //Log.d("ReadItemsFromFile", "Name: " + elementNameString);
                        HashMap<String, String> mapElement = new HashMap<String, String>();
                        mapElement.put("name", elementNameString);
                        mapElement.put("id", eElement.getElementsByTagName("id").item(0).getTextContent());
                        mapElement.put("type", nNode.getNodeName());
                        results.add(mapElement);
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        return results;

    }
}