Solution (#3131): Error: RedisException

path/to/app/src/main/java/it/niedermann/owncloud/notes/exception/ExceptionHandler.java

@@ -0,0 +1,14 @@
+import android.content.Context;
+import it.niedermann.owncloud.notes.persistence.NotesDatabase;
+
+public class ExceptionHandler {
+    public void handleException(Context context, Exception exception) {
+        if (exception instanceof RedisException) {
+            Log.e("ExceptionHandler", "RedisException occurred", exception);
+            // Prevent note content from being replaced with error message
+            String noteContent = "Note content not available";
+        } else {
+            // Handle other exceptions
+        }
+    }
+}

path/to/app/src/main/java/it/niedermann/owncloud/notes/main/ItemAdapter.java

@@ -0,0 +1,42 @@
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+import androidx.recyclerview.widget.RecyclerView;
+import it.niedermann.owncloud.notes.persistence.NotesDatabase;
+
+public class ItemAdapter extends RecyclerView.Adapter<ItemAdapter.ViewHolder> {
+    private NotesDatabase database;
+
+    public ItemAdapter(Context context) {
+        database = NotesDatabase.getInstance(context);
+    }
+
+    @Override
+    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_layout, parent, false);
+        return new ViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(ViewHolder holder, int position) {
+        try {
+            // Load note content from database
+            String noteContent = database.getNoteContent();
+            holder.textView.setText(noteContent);
+        } catch (RedisException e) {
+            Log.e("ItemAdapter", "RedisException occurred", e);
+            // Prevent note content from being replaced with error message
+            holder.textView.setText("Note content not available");
+        }
+    }
+
+    public class ViewHolder extends RecyclerView.ViewHolder {
+        public TextView textView;
+
+        public ViewHolder(View itemView) {
+            super(itemView);
+            textView = itemView.findViewById(R.id.text_view);
+        }
+    }
+}

path/to/app/src/main/java/it/niedermann/owncloud/notes/main/MainActivity.java

@@ -0,0 +1,23 @@
+import android.os.Bundle;
+import android.util.Log;
+import androidx.appcompat.app.AppCompatActivity;
+import it.niedermann.owncloud.notes.persistence.NotesDatabase;
+
+public class MainActivity extends AppCompatActivity {
+    private NotesDatabase database;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        database = NotesDatabase.getInstance(this);
+
+        try {
+            // Load note content from database
+            String noteContent = database.getNoteContent();
+        } catch (RedisException e) {
+            Log.e("MainActivity", "RedisException occurred", e);
+            // Prevent note content from being replaced with error message
+            String noteContent = "Note content not available";
+        }
+    }
+}

path/to/app/src/main/java/it/niedermann/owncloud/notes/persistence/Note.java

@@ -0,0 +1,9 @@
+import androidx.room.Entity;
+import androidx.room.PrimaryKey;
+
+@Entity
+public class Note {
+    @PrimaryKey
+    public int id;
+    public String content;
+}

path/to/app/src/main/java/it/niedermann/owncloud/notes/persistence/NoteDao.java

@@ -0,0 +1,12 @@
+import androidx.room.Dao;
+import androidx.room.Query;
+import it.niedermann.owncloud.notes.persistence.Note;
+
+@Dao
+public interface NoteDao {
+    @Query("SELECT * FROM notes")
+    List<Note> getNotes();
+
+    @Query("SELECT content FROM notes WHERE id = :id")
+    String getNoteContent(int id);
+}

path/to/app/src/main/java/it/niedermann/owncloud/notes/persistence/NotesDatabase.java

@@ -0,0 +1,20 @@
+import android.content.Context;
+import androidx.room.Database;
+import androidx.room.Room;
+import androidx.room.RoomDatabase;
+import it.niedermann.owncloud.notes.persistence.NoteDao;
+
+@Database(entities = {Note.class}, version = 1)
+public abstract class NotesDatabase extends RoomDatabase {
+    public abstract NoteDao noteDao();
+
+    private static NotesDatabase INSTANCE;
+
+    public static synchronized NotesDatabase getInstance(Context context) {
+        if (INSTANCE == null) {
+            INSTANCE = Room.databaseBuilder(context.getApplicationContext(), NotesDatabase.class, "notes_database")
+                    .build();
+        }
+        return INSTANCE;
+    }
+}