Examples with RootInfo dev.dworks.apps.anexplorer.model.RootInfo used on opensource projects

Example 26 with RootInfo

use of dev.dworks.apps.anexplorer.model.RootInfo in project AnExplorer by 1hakr.

the class RecentLoader method loadInBackground.

@Override
public DirectoryResult loadInBackground() {
    if (mFirstPassLatch == null) {
        // First time through we kick off all the recent tasks, and wait
        // around to see if everyone finishes quickly.
        final Collection<RootInfo> roots = mRoots.getMatchingRootsBlocking(mState);
        for (RootInfo root : roots) {
            if ((root.flags & Root.FLAG_SUPPORTS_RECENTS) != 0) {
                final RecentTask task = new RecentTask(new Runnable() {

                    @Override
                    public void run() {
                    }
                }, root.authority, root.rootId);
                mTasks.put(root, task);
            }
        }
        mFirstPassLatch = new CountDownLatch(mTasks.size());
        for (RecentTask task : mTasks.values()) {
            ProviderExecutor.forAuthority(task.authority).execute(task);
        }
        try {
            mFirstPassLatch.await(MAX_FIRST_PASS_WAIT_MILLIS, TimeUnit.MILLISECONDS);
            mFirstPassDone = true;
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
    }
    final long rejectBefore = System.currentTimeMillis() - REJECT_OLDER_THAN;
    // Collect all finished tasks
    boolean allDone = true;
    List<Cursor> cursors = new ArrayList<>();
    for (RecentTask task : mTasks.values()) {
        if (task.isDone()) {
            try {
                final Cursor cursor = task.get();
                if (cursor == null)
                    continue;
                final FilteringCursorWrapper filtered = new FilteringCursorWrapper(cursor, mState.acceptMimes, RECENT_REJECT_MIMES, rejectBefore) {

                    @Override
                    public void close() {
                    // Ignored, since we manage cursor lifecycle internally
                    }
                };
                cursors.add(filtered);
            } catch (InterruptedException e) {
                throw new RuntimeException(e);
            } catch (ExecutionException e) {
            // We already logged on other side
            }
        } else {
            allDone = false;
        }
    }
    if (LOGD) {
        Log.d(TAG, "Found " + cursors.size() + " of " + mTasks.size() + " recent queries done");
    }
    final DirectoryResult result = new DirectoryResult();
    result.sortOrder = SORT_ORDER_LAST_MODIFIED;
    // Hint to UI if we're still loading
    final Bundle extras = new Bundle();
    if (!allDone) {
        extras.putBoolean(DocumentsContract.EXTRA_LOADING, true);
    }
    final Cursor merged;
    if (cursors.size() > 0) {
        merged = new MergeCursor(cursors.toArray(new Cursor[cursors.size()]));
    } else {
        // Return something when nobody is ready
        merged = new MatrixCursor(new String[0]);
    }
    final SortingCursorWrapper sorted = new SortingCursorWrapper(merged, result.sortOrder) {

        @Override
        public Bundle getExtras() {
            return extras;
        }
    };
    result.cursor = sorted;
    return result;
}