Filter logging on background

app/src/main/java/eu/faircode/email/AdapterLog.java

@@ -20,6 +20,7 @@ package eu.faircode.email;
 */
 
 import android.content.Context;
+import android.os.Bundle;
 import android.text.SpannableStringBuilder;
 import android.text.style.ForegroundColorSpan;
 import android.view.LayoutInflater;
@@ -41,6 +42,7 @@ import androidx.recyclerview.widget.RecyclerView;
 import java.text.DateFormat;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.ExecutorService;
 
 public class AdapterLog extends RecyclerView.Adapter<AdapterLog.ViewHolder> {
     private Fragment parentFragment;
@@ -67,6 +69,9 @@ public class AdapterLog extends RecyclerView.Adapter<AdapterLog.ViewHolder> {
 
     private DateFormat TF;
 
+    private static final ExecutorService executor =
+            Helper.getBackgroundExecutor(1, "contacts");
+
     public class ViewHolder extends RecyclerView.ViewHolder {
         private TextView tvTime;
         private TextView tvData;
@@ -154,8 +159,11 @@ public class AdapterLog extends RecyclerView.Adapter<AdapterLog.ViewHolder> {
         this.message = message;
         this.types = types;
 
+        new SimpleTask<List<EntityLog>>() {
+            @Override
+            protected List<EntityLog> onExecute(Context context, Bundle args) throws Throwable {
                 List<EntityLog> items = new ArrayList<>();
-        for (EntityLog log : all)
+                for (EntityLog log : logs)
                     if (account == null && folder == null && message == null) {
                         if (types.contains(log.type))
                             items.add(log);
@@ -165,10 +173,14 @@ public class AdapterLog extends RecyclerView.Adapter<AdapterLog.ViewHolder> {
                                 (message == null || message.equals(log.message)))
                             items.add(log);
                     }
+                return items;
+            }
 
+            @Override
+            protected void onExecuted(Bundle args, List<EntityLog> items) {
                 DiffUtil.DiffResult diff = DiffUtil.calculateDiff(new DiffCallback(selected, items), false);
 
-        this.selected = items;
+                selected = items;
 
                 diff.dispatchUpdatesTo(new ListUpdateCallback() {
                     @Override
@@ -191,7 +203,14 @@ public class AdapterLog extends RecyclerView.Adapter<AdapterLog.ViewHolder> {
                         Log.d("Changed @" + position + " #" + count);
                     }
                 });
-        diff.dispatchUpdatesTo(this);
+                diff.dispatchUpdatesTo(AdapterLog.this);
+            }
+
+            @Override
+            protected void onException(Bundle args, Throwable ex) {
+                Log.unexpectedError(parentFragment.getParentFragmentManager(), ex);
+            }
+        }.setExecutor(executor).execute(context, owner, new Bundle(), "logs:filter");
     }
 
     public void setTypes(@NonNull List<EntityLog.Type> types) {