org.hobbit.spatiotemporalbenchmark.transformations.value.AddressFromNominatim.java Source code

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Here is the source code for org.hobbit.spatiotemporalbenchmark.transformations.value.AddressFromNominatim.java

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package org.hobbit.spatiotemporalbenchmark.transformations.value;

import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.commons.io.FileUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import static org.hobbit.spatiotemporalbenchmark.transformations.PointsAddressesCache.f;
import static org.hobbit.spatiotemporalbenchmark.transformations.PointsAddressesCache.pointAddressMap;
import org.json.JSONObject;

/**
 *
 * @author jsaveta
 */
public class AddressFromNominatim {

    public static String getAddress(double latitude, double longitude) {
        String strAddress = "";
        String point = latitude + "," + longitude;

        String url = "http://nominatim.openstreetmap.org/reverse?format=json&lat=" + latitude + "&lon=" + longitude
                + "&addressdetails=1&accept-language=en";

        HttpPost httppost = new HttpPost(url);
        HttpClient httpclient = new DefaultHttpClient();
        String result = "";
        try {
            HttpResponse response = httpclient.execute(httppost);
            HttpEntity resEntityGet = response.getEntity();
            if (resEntityGet != null) {
                result = EntityUtils.toString(resEntityGet);
            }
        } catch (Exception e) {
            System.out.println("Exception:" + e);
        }
        try {
            if (result != null) {
                JSONObject json = new JSONObject(result);
                strAddress = json.get("display_name").toString();
            }
        } catch (Exception e) {
        }
        try {
            if (!strAddress.equals("")) {
                pointAddressMap.put(point, strAddress);
                FileUtils.writeStringToFile(f, point + "=" + strAddress + "\n", true);
            }
        } catch (IOException ex) {
            Logger.getLogger(CoordinatesToAddress.class.getName()).log(Level.SEVERE, null, ex);
        }
        return strAddress;
    }
}