Examples with Result com.google.android.agera.Result used on opensource projects

Example 1 with Result

use of com.google.android.agera.Result in project agera by google.

the class NotesFragment method onCreate.

@Override
public void onCreate(@Nullable final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setRetainInstance(true);
    notesStore = notesStore(getContext().getApplicationContext());
    pool = new RecycledViewPool();
    final RowHandler<NoteGroup> rowHandler = rowBinder(pool, (r) -> new LinearLayoutManager(getContext(), HORIZONTAL, false), NoteGroup::getId, (r) -> dataBindingRepositoryPresenterOf(Note.class).layout(R.layout.text_layout).itemId(BR.note).handler(BR.click, (Receiver<Note>) (note) -> {
        final EditText editText = new EditText(getContext());
        editText.setId(R.id.edit);
        editText.setText(note.getNote());
        new AlertDialog.Builder(getContext()).setTitle(R.string.edit_note).setView(editText).setPositiveButton(R.string.edit, (d, i) -> notesStore.updateNote(note, editText.getText().toString())).create().show();
    }).handler(BR.longClick, (Receiver<Note>) notesStore::deleteNote).stableIdForItem(Note::getId).collectionId(BR.noteGroup).forCollection(NoteGroup::getNotes));
    adapter = repositoryAdapter().addLayout(layout(R.layout.header)).add(notesStore.getNotesRepository(), repositoryPresenterOf(NoteGroup.class).layout(R.layout.note_group_layout).stableIdForItem(NoteGroup::getId).bindWith(rowHandler).recycleWith(rowHandler).forList()).addItem(getInstance().format(new Date()), dataBindingRepositoryPresenterOf(String.class).layout(R.layout.footer).itemId(BR.string).forItem()).build();
    adapter.setHasStableIds(true);
    final DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
    backgroundRepository = repositoryWithInitialValue(Result.<Bitmap>absent()).observe().onUpdatesPerLoop().goTo(networkExecutor).getFrom(() -> "http://www.gravatar.com/avatar/4df6f4fe5976df17deeea19443d4429d?s=" + Math.max(displayMetrics.heightPixels, displayMetrics.widthPixels)).transform(url -> httpGetRequest(url).compile()).attemptTransform(httpFunction()).orEnd(Result::failure).goTo(calculationExecutor).thenTransform(input -> {
        final byte[] body = input.getBody();
        return absentIfNull(decodeByteArray(body, 0, body.length));
    }).onDeactivation(SEND_INTERRUPT).compile();
}

Example 2 with Result

use of com.google.android.agera.Result in project agera by google.

the class NotesStore method notesStore.

@NonNull
static synchronized NotesStore notesStore(@NonNull final Context applicationContext) {
    // Create a database supplier that initializes the database. This is also used to supply the
    // database in all database operations.
    final NotesSqlDatabaseSupplier databaseSupplier = databaseSupplier(applicationContext);
    // Create a function that processes database write operations.
    final Function<SqlInsertRequest, Result<Long>> insertNoteFunction = databaseInsertFunction(databaseSupplier);
    final Function<SqlUpdateRequest, Result<Integer>> updateNoteFunction = databaseUpdateFunction(databaseSupplier);
    final Function<SqlDeleteRequest, Result<Integer>> deleteNoteFunction = databaseDeleteFunction(databaseSupplier);
    final UpdateDispatcher updateDispatcher = updateDispatcher();
    final Receiver<SqlDeleteRequest> delete = value -> STORE_EXECUTOR.execute(() -> {
        deleteNoteFunction.apply(value);
        updateDispatcher.update();
    });
    final Receiver<SqlUpdateRequest> update = value -> STORE_EXECUTOR.execute(() -> {
        updateNoteFunction.apply(value);
        updateDispatcher.update();
    });
    final Receiver<SqlInsertRequest> insert = value -> STORE_EXECUTOR.execute(() -> {
        insertNoteFunction.apply(value);
        updateDispatcher.update();
    });
    // Create the wired up notes store
    return new NotesStore(repositoryWithInitialValue(INITIAL_VALUE).observe(updateDispatcher).onUpdatesPerLoop().goTo(STORE_EXECUTOR).getFrom(() -> sqlRequest().sql(GET_NOTES_FROM_TABLE).compile()).attemptTransform(databaseQueryFunction(databaseSupplier, cursor -> note(cursor.getInt(ID_COLUMN_INDEX), cursor.getString(NOTE_COLUMN_INDEX)))).orEnd(staticFunction(INITIAL_VALUE)).thenTransform(notes -> {
        final Map<Character, List<Note>> notesGroupsData = new TreeMap<>();
        for (final Note note : notes) {
            final String noteText = note.getNote();
            final char groupId = isEmpty(noteText) ? 0 : noteText.charAt(0);
            List<Note> notesGroupData = notesGroupsData.get(groupId);
            if (notesGroupData == null) {
                notesGroupData = new ArrayList<>();
                notesGroupsData.put(groupId, notesGroupData);
            }
            notesGroupData.add(note);
        }
        final List<NoteGroup> notesGroups = new ArrayList<>();
        for (final Map.Entry<Character, List<Note>> groupData : notesGroupsData.entrySet()) {
            notesGroups.add(noteGroup(String.valueOf(groupData.getKey()), groupData.getKey(), groupData.getValue()));
        }
        return notesGroups;
    }).onConcurrentUpdate(SEND_INTERRUPT).onDeactivation(SEND_INTERRUPT).compile(), insert, update, delete, databaseSupplier);
}