weatherRoute.MapHandler.java Source code

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Here is the source code for weatherRoute.MapHandler.java

Source

/*
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package weatherRoute;

import java.util.ArrayList;
import java.net.URL;

import java.net.HttpURLConnection;

import com.google.gson.JsonParser;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonArray;

import java.io.InputStreamReader;
import java.io.InputStream;

import java.net.MalformedURLException;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.Map;

/**
 *
 * @author andrew
 */
public class MapHandler {

    //TODO actually hit GOOGLE API and parse for a list of cities
    public ArrayList<Location> getCities(String origin, String destination) {
        ArrayList<Location> cities = new ArrayList<Location>();

        origin = origin.replace(" ", "");
        destination = destination.replace(" ", "");

        String apiQuery = "https://maps.googleapis.com/maps/api/directions/json?origin=" + origin + "&destination="
                + destination + "&key=AIzaSyDbWBUUbN6UHlG9auqFVGmN6WJY9HSe8YI";

        try {
            URL url = new URL(apiQuery);
            HttpURLConnection request = (HttpURLConnection) url.openConnection();
            request.connect();

            JsonParser jp = new JsonParser();
            JsonElement root = jp.parse(new InputStreamReader((InputStream) request.getContent()));

            //You have to step through the ugly, JSON within array within JSON stuff.
            JsonArray stepsArray = root.getAsJsonObject().getAsJsonArray("routes").get(0).getAsJsonObject()
                    .getAsJsonArray("legs").get(0).getAsJsonObject().getAsJsonArray("steps");

            //loop through steps to get city locations
            for (JsonElement element : stepsArray) {
                //this gets a string value of the distance in miles
                String distance = element.getAsJsonObject().get("distance").getAsJsonObject().get("text")
                        .toString();

                if (distance.contains("mi")) {
                    //parse return value and cast to a Double to be able to compare
                    distance = distance.replace(" mi", "");
                    distance = distance.replace("\"", "");
                    Double test = Double.parseDouble(distance);

                    //this limits out all the short .5 mile steps
                    //should mostly get different cities now
                    if (Double.compare(test, 10.0) > 0) {
                        System.out.println("TEST DISTANCE: " + distance + ", " + test);

                        JsonObject location = element.getAsJsonObject().get("end_location").getAsJsonObject();
                        String latitude = location.get("lat").toString();
                        String longitude = location.get("lng").toString();

                        Location tempLocation = new Location(Double.parseDouble(latitude),
                                Double.parseDouble(longitude));

                        cities.add(tempLocation);
                        //now I need to hit a different API and get CITY names from lat long
                        //http://stackoverflow.com/questions/6548504/how-can-i-get-city-name-from-a-latitude-and-longitude-point
                        //fortunately it shows me how here ^

                        //System.out.println("TEST LOCATION LAT: " + latitude + " LONG: " + longitude);
                    }
                }
            }
        } catch (Exception e) {
            System.out.println("Error: " + e);
        }

        //testing();

        return cities;
    }

    public void testing() {
        //replace these with input values
        String origin = "Boise";
        String destination = "Rexburg";

        String apiQuery = "https://maps.googleapis.com/maps/api/directions/json?origin=" + origin + "&destination="
                + destination + "&key=AIzaSyDbWBUUbN6UHlG9auqFVGmN6WJY9HSe8YI";

        try {
            URL url = new URL(apiQuery);
            HttpURLConnection request = (HttpURLConnection) url.openConnection();
            request.connect();

            JsonParser jp = new JsonParser();
            JsonElement root = jp.parse(new InputStreamReader((InputStream) request.getContent()));

            //You have to step through the ugly, JSON within array within JSON stuff.
            JsonArray stepsArray = root.getAsJsonObject().getAsJsonArray("routes").get(0).getAsJsonObject()
                    .getAsJsonArray("legs").get(0).getAsJsonObject().getAsJsonArray("steps");

            //loop through steps to get city locations
            for (JsonElement element : stepsArray) {
                //this gets a string value of the distance in miles
                String distance = element.getAsJsonObject().get("distance").getAsJsonObject().get("text")
                        .toString();

                //parse return value and cast to a Double to be able to compare
                distance = distance.replace(" mi", "");
                distance = distance.replace("\"", "");
                Double test = Double.parseDouble(distance);

                //this limits out all the short .5 mile steps
                //should mostly get different cities now
                if (Double.compare(test, 10.0) > 0) {
                    System.out.println("TEST DISTANCE: " + distance + ", " + test);

                    JsonObject location = element.getAsJsonObject().get("end_location").getAsJsonObject();
                    String latitude = location.get("lat").toString();
                    String longitude = location.get("lng").toString();

                    //now I need to hit a different API and get CITY names from lat long
                    //http://stackoverflow.com/questions/6548504/how-can-i-get-city-name-from-a-latitude-and-longitude-point
                    //fortunately it shows me how here ^

                    System.out.println("TEST LOCATION LAT: " + latitude + " LONG: " + longitude);
                }
            }

        } catch (Exception e) {
            System.out.println("Error: " + e);
        }
    }
}