com.oneteam.framework.android.location.gplaces.PlacesService.java Source code

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Here is the source code for com.oneteam.framework.android.location.gplaces.PlacesService.java

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/*
 * Copyright (C) 2013 OneTeam (IslamSamak : islamsamak01@gmail.com)
 * Karn Shah (10/3/2013)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.oneteam.framework.android.location.gplaces;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;

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

import android.util.Log;

/**
 * Create request for Places API.
 * 
 * @author Karn Shah
 * @Date 10/3/2013
 * 
 */
public class PlacesService {

    private String API_KEY;

    public PlacesService(String apikey) {
        this.API_KEY = apikey;
    }

    public void setApiKey(String apikey) {
        this.API_KEY = apikey;
    }

    public ArrayList<Place> findPlaces(double latitude, double longitude, String placeSpacification)
            throws IllegalStateException {

        String urlString = makeUrl(latitude, longitude, placeSpacification);

        try {
            String json = getJSON(urlString);

            System.out.println(json);

            JSONObject object = new JSONObject(json);

            String status = object.getString("status");

            if (!"ok".equalsIgnoreCase(status)) {
                throw new IllegalStateException(status);
            }

            JSONArray array = object.getJSONArray("results");

            ArrayList<Place> arrayList = new ArrayList<Place>(array.length());
            for (int i = 0; i < array.length(); i++) {
                try {
                    Place place = Place.jsonToPontoReferencia((JSONObject) array.get(i));
                    Log.v("Places Services ", "" + place);
                    arrayList.add(place);
                } catch (Exception e) {
                }
            }
            return arrayList;
        } catch (JSONException ex) {
            Logger.getLogger(PlacesService.class.getName()).log(Level.SEVERE, null, ex);
        }
        return null;
    }

    // https://maps.googleapis.com/maps/api/place/search/json?location=28.632808,77.218276&radius=500&types=atm&sensor=false&key=apikey
    // https://maps.googleapis.com/maps/api/place/search/json?keyword=%22city%22&name=%22city%22&location=30.044541,31.235115&radius=5000&sensor=false&key=apikey
    private String makeUrl(double latitude, double longitude, String place) {

        StringBuilder urlString = new StringBuilder("https://maps.googleapis.com/maps/api/place/search/json?");

        urlString.append("&location=");
        urlString.append(Double.toString(latitude));
        urlString.append(",");
        urlString.append(Double.toString(longitude));
        urlString.append("&radius=5000");
        urlString.append("&keyword=" + place);
        urlString.append("&name=" + place);
        urlString.append("&sensor=false&key=" + API_KEY);

        return urlString.toString();
    }

    protected String getJSON(String url) {
        return getUrlContents(url);
    }

    private String getUrlContents(String theUrl) {
        StringBuilder content = new StringBuilder();

        try {
            URL url = new URL(theUrl);
            URLConnection urlConnection = url.openConnection();
            BufferedReader bufferedReader = new BufferedReader(
                    new InputStreamReader(urlConnection.getInputStream()), 8);
            String line;
            while ((line = bufferedReader.readLine()) != null) {
                content.append(line + "\n");
            }
            bufferedReader.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return content.toString();
    }
}