Examples with ARBindingsResults it.unibo.arces.wot.sepa.commons.sparql.ARBindingsResults used on opensource projects

Example 1 with ARBindingsResults

use of it.unibo.arces.wot.sepa.commons.sparql.ARBindingsResults in project SEPA by arces-wot.

the class SPUNaive method processInternal.

@Override
public Response processInternal(UpdateResponse update, int timeout) {
    logger.debug("* PROCESSING *" + request);
    Response ret;
    try {
        // Query the SPARQL processing service
        ret = queryProcessor.process(request, timeout);
        if (ret.getClass().equals(ErrorResponse.class)) {
            logger.error(ret);
            return ret;
        }
        // Current and previous bindings
        BindingsResults results = ((QueryResponse) ret).getBindingsResults();
        BindingsResults currentBindings = new BindingsResults(results);
        // Initialize the results with the current bindings
        BindingsResults added = new BindingsResults(results.getVariables(), null);
        BindingsResults removed = new BindingsResults(results.getVariables(), null);
        // Create empty bindings if null
        if (lastBindings == null)
            lastBindings = new BindingsResults(null, null);
        logger.debug("Current bindings: " + currentBindings);
        logger.debug("Last bindings: " + lastBindings);
        // Find removed bindings
        long start = System.nanoTime();
        for (Bindings solution : lastBindings.getBindings()) {
            if (!results.contains(solution) && !solution.isEmpty())
                removed.add(solution);
            else
                results.remove(solution);
        }
        long stop = System.nanoTime();
        logger.debug("Removed bindings: " + removed + " found in " + (stop - start) + " ns");
        // Find added bindings
        start = System.nanoTime();
        for (Bindings solution : results.getBindings()) {
            if (!lastBindings.contains(solution) && !solution.isEmpty())
                added.add(solution);
        }
        stop = System.nanoTime();
        logger.debug("Added bindings: " + added + " found in " + (stop - start) + " ns");
        // Update the last bindings with the current ones
        lastBindings = currentBindings;
        // Send notification (or end processing indication)
        if (!added.isEmpty() || !removed.isEmpty())
            ret = new Notification(getUUID(), new ARBindingsResults(added, removed), sequence++);
    } catch (Exception e) {
        ret = new ErrorResponse(500, e.getMessage());
    }
    return ret;
}

Example 2 with ARBindingsResults

use of it.unibo.arces.wot.sepa.commons.sparql.ARBindingsResults in project SEPA by arces-wot.

the class Consumer method onSemanticEvent.

@Override
public final void onSemanticEvent(Notification notify) {
    ARBindingsResults results = notify.getARBindingsResults();
    BindingsResults added = results.getAddedBindings();
    BindingsResults removed = results.getRemovedBindings();
    // Dispatch different notifications based on notify content
    if (!added.isEmpty())
        onAddedResults(added);
    if (!removed.isEmpty())
        onRemovedResults(removed);
    onResults(results);
}