Android Open Source - spotastop Loader Request

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Back to project page spotastop.
License

The source code is released under:
MIT License
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Java Source Code

package requests;
//  w w w  .j ava2 s. c om
import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Date;

import resources.Resource;
import resources.ResourcesCache;
import responses.AsyncCallback;
import responses.beContentResponse;
import rest.RestApi;

import com.google.gson.Gson;
import com.nicfix.gsoncompatibility.GsonConfigurator;

public class LoaderRequest extends beContentRequest {

  public LoaderRequest(Criteria c, ArrayList<Resource> data,
      ArrayList<Link> rels) {
    super(c, data, rels);
  }

  @Override
  public beContentResponse doSync() {
    String responseString = "";
    String urlString = buildRequest();
    System.out.println("REQUEST " + urlString);
    HttpURLConnection urlConnection = null;
    URL url = null;

    try {
      url = new URL(urlString.toString());

      urlConnection = (HttpURLConnection) url.openConnection();
      urlConnection.setRequestMethod("GET");
      urlConnection.setDoOutput(true);
      urlConnection.setDoInput(true);

      urlConnection.connect();

      InputStream inStream = urlConnection.getInputStream();

      // ///PERFORMANCE CRITICAL
      BufferedInputStream bis = new BufferedInputStream(inStream);
      ByteArrayOutputStream buf = new ByteArrayOutputStream();
      int result = bis.read();
      while (result != -1) {
        byte b = (byte) result;
        buf.write(b);
        result = bis.read();
      }
      responseString = buf.toString();
      // ///PERFORMANCE CRITICAL
      
      inStream.close();
      urlConnection.disconnect();
      System.out.println("RESPONSE   " + responseString);
      Gson parser =GsonConfigurator.getInstance().build();
      this.responseHandler = parser.fromJson(responseString,
          beContentResponse.class);

    } catch (MalformedURLException e) {
    } catch (ProtocolException e) {
    } catch (IOException e) {
    }
    return this.responseHandler;
  }

  @Override
  public void doAsync(AsyncCallback callback) {
    String responseString = "";
    String urlString = buildRequest();

    HttpURLConnection urlConnection = null;
    URL url = null;

    try {
      url = new URL(urlString.toString());

      urlConnection = (HttpURLConnection) url.openConnection();
      urlConnection.setRequestMethod("GET");
      urlConnection.setDoOutput(true);
      urlConnection.setDoInput(true);

      urlConnection.connect();

      InputStream inStream = urlConnection.getInputStream();

      // ///PERFORMANCE CRITICAL
      BufferedInputStream bis = new BufferedInputStream(inStream);
      ByteArrayOutputStream buf = new ByteArrayOutputStream();
      int result = bis.read();
      while (result != -1) {
        byte b = (byte) result;
        buf.write(b);
        result = bis.read();
      }
      responseString = buf.toString();
      // ///PERFORMANCE CRITICAL

      inStream.close();
      urlConnection.disconnect();

      System.out.println("RESPONSE   " + responseString);
      Gson parser =GsonConfigurator.getInstance().build();
      this.responseHandler = parser.fromJson(responseString,
          beContentResponse.class);

    } catch (MalformedURLException e) {
    } catch (ProtocolException e) {
    } catch (IOException e) {
    }

    callback.callback(responseHandler);

  }

  @Override
  public String buildRequest() {

    String url = RestApi.getServerUrl() + "/loader.php?";

    Gson parser =GsonConfigurator.getInstance().build();

    /**
     * Sending data to load resources
     */
    url += "data=" + parser.toJson(this.criteria.getConstraints());

    /**
     * Sending the lastUpdateTime for the requested resClass
     */
    if (ResourcesCache.getInstance().getLastUpdateTimes()
        .get(this.criteria.getConstraints().get("resClass")) == null) {
      ResourcesCache
          .getInstance()
          .getLastUpdateTimes()
          .put(this.criteria.getConstraints().get("resClass"),
              new Date(0));
    }

    url += "&lastUpdateTime="
        + ResourcesCache.getInstance().getLastUpdateTimes()
            .get(this.criteria.getConstraints().get("resClass"))
            .getTime();

    return url;

  }

}
Java Source Code List
