com.goodway.nominatimparser.Request.java Source code

Introduction

Here is the source code for com.goodway.nominatimparser.Request.java

Source

package com.goodway.nominatimparser;

import android.os.AsyncTask;
import android.util.Log;

import com.example.alexis.navitia_android.Address;
import com.example.alexis.navitia_android.AddressType;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;

/**
 * @author Antoine Sauray
 * @version 0.5
 * Licensed under the Apache2 license
 */

public class Request {

    public static void getPlaces(Action a, ArrayList<Pair>... parameters) {
        try {
            new GetPlaces(a, parameters).execute();
            Log.d("getPlaces", "getPlaces");
        } catch (IllegalStateException e) {
            Log.e(e.getMessage(), "exception");
        }

    }

    private static class GetPlaces extends AsyncTask<Pair, Address, Void> {

        /*
            wiki : http://wiki.openstreetmap.org/wiki/Nominatim
            
            street=<housenumber> <streetname>
            city=<city>
            county=<county>
            state=<state>
            country=<country>
            postalcode=<postalcode>
            
            use q= if you don't know whether the user type an address, a city a county or whatever
        */

        private final String QUERY = "http://nominatim.openstreetmap.org/search?";
        private Action action;
        private ArrayList<Pair>[] parameters;

        /**
         *
         * @param action The method to apply on each Place which is returned by nominatim
         * @param parameters A set of keys and values to provide to the request. Each map will be triggered in a different request
         * @see Action
         */
        public GetPlaces(Action action, ArrayList<Pair>... parameters) {
            this.action = action;
            this.parameters = parameters;
        }

        @Override
        protected Void doInBackground(Pair... params) {
            StringBuilder jsonResult = new StringBuilder();
            StringBuilder sb = new StringBuilder(QUERY);
            sb.append("format=json&polygon=0&addressdetails=0&");
            for (ArrayList<Pair> pairs : parameters) {
                Log.d("size=" + pairs.size(), "arraylist found");
                for (Pair p : pairs) {
                    sb.append(p.first + "=" + p.second + "&");
                    Log.d("p.first=" + p.first + " & o.second" + p.second, "pairs");
                }
                try {
                    URL url = new URL(sb.toString());
                    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                    InputStreamReader in = new InputStreamReader(conn.getInputStream());

                    BufferedReader jsonReader = new BufferedReader(in);
                    String lineIn;
                    while ((lineIn = jsonReader.readLine()) != null) {
                        jsonResult.append(lineIn);
                    }

                    JSONObject jsonObj;
                    try {
                        JSONArray jsonArray = new JSONArray(jsonResult.toString());
                        int length = jsonArray.length();
                        for (int i = 0; i < length; i++) {
                            JSONObject jsonObject = jsonArray.getJSONObject(i);
                            long place_id = jsonObject.optLong("place_id");
                            String license = jsonObject.optString("license");
                            String osm_type = jsonObject.optString("osm_type");
                            long osm_id = jsonObject.optLong("osm_id");
                            JSONArray boundingArray = jsonObject.getJSONArray("boundingbox");
                            BoundingBox boundingBox = new BoundingBox();
                            for (int j = 0; i < boundingArray.length(); i++) {
                                boundingBox.setBound(i, boundingArray.optDouble(i));
                            }
                            double lat = jsonObject.optDouble("lat");
                            double lon = jsonObject.optDouble("lon");
                            String display_name = jsonObject.optString("display_name");
                            String entityClass = jsonObject.optString("class");
                            String type = jsonObject.optString("type");
                            float importance = (float) jsonObject.optDouble("importance");

                            String[] split = display_name.split(",");
                            publishProgress(new Address(split[0] + "," + split[1], R.mipmap.ic_place_black_36dp,
                                    lat, lon, AddressType.PLACE));
                        }

                    } catch (JSONException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }

            }

            return null;
        }

        @Override
        protected void onProgressUpdate(Address... progress) {
            action.action(progress[0]);
            Log.d(progress[0].toString(), "entity");
        }

    }
}