Android Open Source - WhatsUp Annotation Create

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Back to project page WhatsUp.

License

The source code is released under:

GNU General Public License

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Java Source Code

package nu.placebo.whatsup.network;
/*w  w w.  j  a va 2 s .c  o m*/
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import nu.placebo.whatsup.constants.Constants;
import nu.placebo.whatsup.model.Annotation;
import nu.placebo.whatsup.model.GeoLocation;
import nu.placebo.whatsup.model.SessionInfo;
import nu.placebo.whatsup.util.GeoPointUtil;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.ResponseHandler;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONException;
import org.json.JSONObject;

import com.google.android.maps.GeoPoint;

/**
 * 
 * Retrieves an Annotation from the server.
 * 
 */

public class AnnotationCreate extends AbstractNetworkOperation<Annotation> {

  private String title, body, author;
  private SessionInfo sessionInfo;
  private double latitude;
  private double longitude;
  private boolean hasErrors;

  /**
   * 
   * Sends an request to create an annotation to the server. Requires a valid
   * SessionInfo.
   * 
   */
  public AnnotationCreate(String title, String body, String author,
      GeoPoint pos, SessionInfo sessionInfo) {
    this.title = title;
    this.body = body;
    double[] p = GeoPointUtil.convertGeoPointToDoubles(pos);
    this.latitude = p[0];
    this.longitude = p[1];
    this.sessionInfo = sessionInfo;
    this.author = author;
  }

  public OperationResult<Annotation> execute() {
    Annotation annotation = null;
    HttpResponse response = null;
    this.hasErrors = true;
    try {
      List<NameValuePair> body = new ArrayList<NameValuePair>(2);
      body.add(new BasicNameValuePair("node[title]", this.title));
      body.add(new BasicNameValuePair("node[type]", "annotation"));
      body.add(new BasicNameValuePair("node[body][und][0][value]",
          this.body));
      body.add(new BasicNameValuePair("node[locations][0][country]", "se"));
      body.add(new BasicNameValuePair(
          "node[locations][0][locpick][user_latitude]", this.latitude
              + ""));
      body.add(new BasicNameValuePair(
          "node[locations][0][locpick][user_longitude]",
          this.longitude + ""));
      response = NetworkCalls.performPostRequest(Constants.API_URL
          + "node.json", body, this.sessionInfo);
      ResponseHandler<String> handler = new BasicResponseHandler();
      annotation = this.parseResult(handler.handleResponse(response));
      hasErrors = false;
    } catch (ClientProtocolException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }
    return new OperationResult<Annotation>(hasErrors,
        response.getStatusLine().getStatusCode(), response
            .getStatusLine().getReasonPhrase(), annotation);
  }

  private Annotation parseResult(String result) {
    try {
      JSONObject json = new JSONObject(result);
      int nid = json.getInt("nid");
      this.hasErrors = false;
      return new Annotation(new GeoLocation(nid,
          this.latitude, this.longitude, this.title), this.body,
          this.author, null);
    } catch (JSONException e) {
      e.printStackTrace();
    }
    return null;
  }
}

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