ProcessJSONResponseArrayTask.java

package dk.slott.super_volley.tasks;

import java.lang.reflect.Constructor;
import java.util.ArrayList;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import dk.slott.super_volley.managers.ResultListenerNG;
import dk.slott.super_volley.models.JSonModel;
import android.os.AsyncTask;
import android.util.Log;

	public class ProcessJSONResponseArrayTask<T> extends  AsyncTask<JSONArray, Void, ArrayList<T>> {
		private static final String TAG = ProcessJSONResponseTask.class.getSimpleName();

		private ResultListenerNG<ArrayList<T>> resultListener;
		private Class<? extends JSonModel> theClassInArrayList;
		
		public ProcessJSONResponseArrayTask(final ResultListenerNG<ArrayList<T>> resultListener, final Class<? extends JSonModel> theClassInArrayList) {
			this.resultListener = resultListener;
			this.theClassInArrayList = theClassInArrayList;
		}
		
		@Override
		protected ArrayList<T> doInBackground(JSONArray... params) {
			Log.d(TAG, "onPostExecute");
			final ArrayList<T> items = new ArrayList<T>();
				final Constructor<?> c;	

			try {

				// MSH: The array denoted by the provided name ie. movies or tvseries.
				final JSONArray jsonArray = params[0];
			
				c = this.theClassInArrayList.getConstructor(new Class[] { JSONObject.class });	
				
				// MSH: Each item is instantiated as the approiate object and added to the result array.
				for(int n=0; n < jsonArray.length(); n++) {
					@SuppressWarnings("unchecked")
					final T a = (T) c.newInstance(new Object[] { jsonArray.getJSONObject(n) });
					items.add(a);
				}
			} catch (JSONException e) {
				Log.e(TAG, "JSONException: " + e);
			} catch (Exception e) {
				Log.e(TAG, "Exception: " + e);
			}

			return items;

		}
		
		@Override
		protected void onPostExecute(ArrayList<T> result) {
			super.onPostExecute(result);
			Log.d(TAG, "onPostExecute");
			resultListener.onSuccess(result);
			
		}

	}