gnip classic sauce

public Set<OutboundTask> add(LinkedHashSet<T> itemsToFilter) {
    LinkedHashMultimap<Stream<T>, T> filteredItems = Multimaps.newLinkedHashMultimap();
    Set<OutboundTask> outboundTasks = Sets.newHashSet();

    for (T filterable : itemsToFilter) {
        filterAction(filteredItems, filterable);
        filterActor(filteredItems, filterable);
        filterTag(filteredItems, filterable);
        filterTo(filteredItems, filterable);
        filterRegarding(filteredItems, filterable);
        filterSource(filteredItems, filterable);
        filterKeyword(filteredItems, filterable);
        //filterGeo(filteredItems, filterable);
    }

    for (Stream<T> stream : filteredItems.keySet()) {
        final LinkedHashSet<T> items = new LinkedHashSet<T>(filteredItems.get(stream));
        stream.add(items);
        if (stream.hasOutboundTask()) {
            final OutboundTask task = stream.createOutboundTask(items);
            outboundTasks.add(task);
        }
    }

    return outboundTasks;
}