Android Open Source - TAQueue School Request

From Project

Back to project page TAQueue.
License

The source code is released under:
MIT License
If you think the Android project TAQueue listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package com.familybiz.greg.taqueue.network;
//from   w ww.  j  a v  a  2 s .c  o m
import com.familybiz.greg.taqueue.MainActivity;
import com.familybiz.greg.taqueue.model.Instructor;
import com.familybiz.greg.taqueue.model.School;
import com.familybiz.greg.taqueue.model.StudentQueue;

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

import java.util.ArrayList;

/**
 * Used to make the network call to the server, parse the response, and populate the necessary data
 * entries.
 *
 * Created by Greg Anderson
 */
public class SchoolRequest implements NetworkRequest.OnJsonArrayReceivedListener {

  public SchoolRequest() {
    MainActivity.NETWORK_REQUEST.addOnJsonArrayReceivedListener(this);
  }

  public void clearNetworkListener() {
    MainActivity.NETWORK_REQUEST.removeOnJsonArrayReceivedListener(this);
  }

  public void populateSchoolData() {
    MainActivity.NETWORK_REQUEST.executeGetRequest("");
  }

  /**
   * Parses the json response into an array of Schools then triggers the listener if there is one.
   */
  @Override
  public void onJsonArrayReceived(String response) {
    if (mOnSchoolsReceivedListener == null)
      return;

    ArrayList<School> schools = new ArrayList<School>();

    try {
      JSONArray jsonArray = new JSONArray(response);

      // Get Schools
      for (int schoolIndex = 0; schoolIndex < jsonArray.length(); schoolIndex++) {
        JSONObject schoolJson = jsonArray.getJSONObject(schoolIndex);

        // Parse school json
        String schoolAbbreviation = schoolJson.getString("abbreviation");
        String schoolName = schoolJson.getString("name");

        School school = new School(schoolName, schoolAbbreviation);

        // Get instructors
        JSONArray instructors = schoolJson.getJSONArray("instructors");
        for (int instructorIndex = 0; instructorIndex < instructors.length(); instructorIndex++) {
          JSONObject instructorJson = instructors.getJSONObject(instructorIndex);

          // Parse instructor json
          String instructorName = instructorJson.getString("name");
          String instructorUsername = instructorJson.getString("username");

          Instructor instructor = new Instructor(instructorName, instructorUsername);

          // Get queues
          JSONArray queues = instructorJson.getJSONArray("queues");
          for (int queueIndex = 0; queueIndex < queues.length(); queueIndex++) {
            JSONObject queueJson = queues.getJSONObject(queueIndex);

            // Parse queue json
            boolean active = queueJson.getBoolean("active");
            String classNumber = queueJson.getString("class_number");
            boolean frozen = queueJson.getBoolean("frozen");
            String id = queueJson.getString("id");
            String title = queueJson.getString("title");

            StudentQueue queue = new StudentQueue(active, frozen, classNumber, title, id);

            instructor.addQueue(queue);
          }

          school.addInstructor(instructor);
        }

        schools.add(school);
      }
    }
    catch (JSONException e) {
      // Error in json, may have been an array for something else
      return;
    }

    // Trigger listener
    mOnSchoolsReceivedListener.onSchoolsReceived(schools.toArray(new School[schools.size()]));
  }


  /***************************** LISTENERS *****************************/


  // Received school information

  public interface OnSchoolsReceivedListener {
    public void onSchoolsReceived(School[] schools);
  }

  private OnSchoolsReceivedListener mOnSchoolsReceivedListener;

  public void setOnSchoolsReceivedListener(OnSchoolsReceivedListener onSchoolsReceivedListener) {
    mOnSchoolsReceivedListener = onSchoolsReceivedListener;
  }
}
Java Source Code List
