GoogleNearby.java

package de.lmu.ifi.dbs.sysdev.google;

import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.WebResource;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import javax.ws.rs.core.MediaType;

public class GoogleNearby {

    private static final String GOOGLE_NEARBY = "https://maps.googleapis.com/maps/api/place/nearbysearch/json?";
    private static final String GOOGLE_KEY = "key=AIzaSyBQgqaRK8JI6_2c9IbaWF8VjrgFnD65mYw";

    public static void nearbySearchInternal(double lat, double lon, int rad, String t) {
        String response = "";
        try {
            URL url = new URL(buildNearbyQueryString(lat, lon, rad, t));
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("GET");
            conn.setRequestProperty("Accept", "application/json");
            if (conn.getResponseCode() != 200) {
                throw new RuntimeException("Failed: HTTP error code: " + conn.getResponseCode());
            }
            BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));
            String nextLine;
            while ((nextLine = br.readLine()) != null) {
                response += nextLine;
            }
            System.out.println(response);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void nearbySearchJersey(double lat, double lon, int rad, String t) {
        Client client = Client.create();
        WebResource webResource = client.resource(buildNearbyQueryString(lat, lon, rad, t));
        ClientResponse response = webResource.accept(MediaType.APPLICATION_JSON).get(ClientResponse.class);
        if (response.getStatus() != 200) {
            throw new RuntimeException("Failed: HTTP error code: " + response.getStatus());
        }
        String responseString = response.getEntity(String.class);
        System.out.println(responseString);
    }

    public static String buildNearbyQueryString(double lat, double lon, int rad, String t){
        String location = "location=" + lat + "," + lon;
        String radius = "radius=" + rad;
        String type = "type=" + t;
        return GOOGLE_NEARBY + location + "&" + radius + "&" + type + "&" + GOOGLE_KEY;
    }
}