Added Android code

[wl-app.git] / Android / app / src / main / java / com / moiseum / wolnelektury / connection / RestClientCallback.java

diff --git a/Android/app/src/main/java/com/moiseum/wolnelektury/connection/RestClientCallback.java b/Android/app/src/main/java/com/moiseum/wolnelektury/connection/RestClientCallback.java
new file mode 100644 (file)
index 0000000..41a1ad5
--- /dev/null
+++ b/Android/app/src/main/java/com/moiseum/wolnelektury/connection/RestClientCallback.java
@@ -0,0 +1,44 @@
+package com.moiseum.wolnelektury.connection;
+
+import android.util.Log;
+
+import retrofit2.Call;
+import retrofit2.Response;
+
+public abstract class RestClientCallback<T, S> implements retrofit2.Callback<T> {
+
+       private static final String TAG = RestClientCallback.class.getSimpleName();
+
+       @Override
+       public void onResponse(Call<T> call, Response<T> response) {
+               if (response.isSuccessful()) {
+                       onSuccess(response.body());
+               } else {
+                       try {
+                               ErrorHandler<T> errorHandler = new ErrorHandler<>(response);
+                               errorHandler.handle();
+                       } catch (Exception e) {
+                               onFailure(e);
+                       }
+               }
+       }
+
+       @Override
+       public void onFailure(Call<T> call, Throwable t) {
+               Log.e(TAG, t.getMessage(), t);
+               if (!call.isCanceled()) {
+                       onFailure(new Exception(t));
+               } else {
+                       onCancel();
+               }
+       }
+
+
+       public abstract void onSuccess(T data);
+
+       public abstract void onFailure(Exception e);
+
+       public abstract void onCancel();
+
+       public abstract Call<T> execute(S service);
+}