Android/app/src/main/java/com/moiseum/wolnelektury/connection/RestClientCallback.java

   1 package com.moiseum.wolnelektury.connection;
   2
   3 import android.util.Log;
   4
   5 import retrofit2.Call;
   6 import retrofit2.Response;
   7
   8 public abstract class RestClientCallback<T, S> implements retrofit2.Callback<T> {
   9
  10         private static final String TAG = RestClientCallback.class.getSimpleName();
  11
  12         @Override
  13         public void onResponse(Call<T> call, Response<T> response) {
  14                 if (response.isSuccessful()) {
  15                         onSuccess(response.body());
  16                 } else {
  17                         try {
  18                                 ErrorHandler<T> errorHandler = new ErrorHandler<>(response);
  19                                 errorHandler.handle();
  20                         } catch (Exception e) {
  21                                 onFailure(e);
  22                         }
  23                 }
  24         }
  25
  26         @Override
  27         public void onFailure(Call<T> call, Throwable t) {
  28                 Log.e(TAG, t.getMessage(), t);
  29                 if (!call.isCanceled()) {
  30                         onFailure(new Exception(t));
  31                 } else {
  32                         onCancel();
  33                 }
  34         }
  35
  36
  37         public abstract void onSuccess(T data);
  38
  39         public abstract void onFailure(Exception e);
  40
  41         public abstract void onCancel();
  42
  43         public abstract Call<T> execute(S service);
  44 }