edu.pdx.konstan2.PortlandLive.responseParserFactory.java Source code

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Here is the source code for edu.pdx.konstan2.PortlandLive.responseParserFactory.java

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/*
 * Copyright (c) 2015. Konstantin Macarenco
 *
 * [This program is licensed under the GPL version 3 or later.]
 *
 * Please see the file COPYING in the source
 * distribution of this software for license terms.
 *
 */

package edu.pdx.konstan2.PortlandLive;

/**
 * Created by kmacarenco on 7/7/15.
 *
 * Takes trimet respond as input, and creates required class.
 * TODO reduce to two method: 1. That parses XML, 2. That parses JSON
 */

import android.util.Log;

import com.google.android.gms.maps.model.LatLng;

import java.io.StringReader;
import java.util.HashMap;
import java.util.Iterator;

import org.json.simple.*;
import org.json.simple.parser.JSONParser;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

/**
 * Each method is pretty self explanatory:
 *  Just in case:
 *  1. Parse string into XML or JSON object.
 *  2. Parse XML or JSON into more structured representation.
 */
public class responseParserFactory {
    public void parseVehiclesLocationJSON(String response, HashMap<LatLng, Vehicle> vMap) {
        try {
            JSONParser parser = new JSONParser();
            JSONObject jobj = (JSONObject) parser.parse(response.toString());
            JSONObject v = (JSONObject) jobj.get("resultSet");
            JSONArray arr = (JSONArray) v.get("vehicle");
            Iterator<JSONObject> iter = arr.iterator();
            while (iter.hasNext()) {
                Vehicle t = new Vehicle(iter.next());
                vMap.put(new LatLng(t.latitude, t.longitude), t);
            }
        } catch (Exception e) {
        }
    }

    public void parseStopsJSON(String response, HashMap<LatLng, Stop> sMap) {
        try {
            JSONParser parser = new JSONParser();
            JSONObject jobj = (JSONObject) parser.parse(response.toString());
            JSONObject v = (JSONObject) jobj.get("resultSet");
            JSONArray arr = (JSONArray) v.get("location");
            Iterator<JSONObject> iter = arr.iterator();
            while (iter.hasNext()) {
                Stop t = new Stop(iter.next());
                sMap.put(new LatLng(t.latitude, t.longitude), t);
            }
        } catch (Exception e) {
        }
    }

    public void parseStopsXML(String response, HashMap<LatLng, Stop> sMap) {
        try {
            DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();

            InputSource is = new InputSource(new StringReader(response));

            Document doc = dBuilder.parse(is);
            doc.getDocumentElement().normalize();
            NodeList nList = doc.getElementsByTagName("location");
            for (int temp = 0; temp < nList.getLength(); temp++) {
                Node nNode = nList.item(temp);
                if (nNode.getNodeType() == Node.ELEMENT_NODE) {
                    Element eElement = (Element) nNode;
                    Stop t = new Stop(eElement);
                    sMap.put(new LatLng(t.latitude, t.longitude), t);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    public void parseArrivals(String response, HashMap<String, Arrival> sMap) {
        try {
            JSONParser parser = new JSONParser();
            JSONObject jobj = (JSONObject) parser.parse(response.toString());
            JSONObject v = (JSONObject) jobj.get("resultSet");
            JSONArray arr = (JSONArray) v.get("arrival");
            Iterator<JSONObject> iter = arr.iterator();
            while (iter.hasNext()) {
                Arrival t = new Arrival(iter.next());
                sMap.put(t.id, t);
                iter.remove();
            }
        } catch (Exception e) {
            Log.d("exception", e.toString());
        }
    }

    public void parseArrivalsXML(String response, HashMap<String, Arrival> sMap) {
        try {
            JSONParser parser = new JSONParser();
            JSONObject jobj = (JSONObject) parser.parse(response.toString());
            JSONObject v = (JSONObject) jobj.get("resultSet");
            JSONArray arr = (JSONArray) v.get("arrival");
            Iterator<JSONObject> iter = arr.iterator();
            while (iter.hasNext()) {
                Arrival t = new Arrival(iter.next());
                sMap.put(t.id, t);
            }
        } catch (Exception e) {
            Log.d("exception", e.toString());
        }
    }

    public void parseRoutesXML(String response, HashMap<Long, Route> routesMap, Boolean includeStops) {
        try {
            DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();

            InputSource is = new InputSource(new StringReader(response));

            Document doc = dBuilder.parse(is);
            doc.getDocumentElement().normalize();
            NodeList nList = doc.getElementsByTagName("route");
            for (int temp = 0; temp < nList.getLength(); temp++) {
                Node nNode = nList.item(temp);
                if (nNode.getNodeType() == Node.ELEMENT_NODE) {
                    Element eElement = (Element) nNode;
                    Route r = new Route(eElement, includeStops);
                    routesMap.put(r.route, r);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}