public boolean process()

in components/camel-directvm/src/main/java/org/apache/camel/karaf/component/directvm/DirectVmProducer.java [42:101]
45 lines of code
12 McCabe index (conditional complexity)

    public boolean process(Exchange exchange, AsyncCallback callback) {
        // send to consumer
        DirectVmConsumer consumer = endpoint.getComponent().getConsumer(endpoint);

        if (consumer == null) {
            if (endpoint.isFailIfNoConsumers()) {
                exchange.setException(new DirectVmConsumerNotAvailableException("No consumers available on endpoint: " + endpoint, exchange));
            } else {
                LOG.debug("message ignored, no consumers available on endpoint: {}", endpoint);
            }
            callback.done(true);
            return true;
        }

        try {
            final HeaderFilterStrategy headerFilterStrategy = endpoint.getHeaderFilterStrategy();

            // only clone the Exchange if we actually need to filter out properties or headers
            final Exchange submitted = (!endpoint.isPropagateProperties() || headerFilterStrategy != null) ? exchange.copy() : exchange;

            // clear properties in the copy if we are not propagating them
            if (!endpoint.isPropagateProperties()) {
                submitted.getProperties().clear();
            }

            // filter headers by Header Filter Strategy if there is one set
            if (headerFilterStrategy != null) {
                submitted.getIn().getHeaders().entrySet().removeIf(e -> headerFilterStrategy.applyFilterToCamelHeaders(e.getKey(), e.getValue(), submitted));
            }

            return consumer.getAsyncProcessor().process(submitted, done -> {
                try {
                    Message msg = submitted.getMessage();

                    if (headerFilterStrategy != null) {
                        msg.getHeaders().entrySet().removeIf(e -> headerFilterStrategy.applyFilterToExternalHeaders(e.getKey(), e.getValue(), submitted));
                    }

                    if (exchange != submitted) {
                        // only need to copy back if they are different
                        exchange.setException(submitted.getException());
                        exchange.getOut().copyFrom(msg);
                    }

                    if (endpoint.isPropagateProperties()) {
                        exchange.getProperties().putAll(submitted.getProperties());
                    }
                } catch (Exception e) {
                    exchange.setException(e);
                } finally {
                    callback.done(true);
                }
            });
        } catch (Exception e) {
            exchange.setException(e);
        }

        callback.done(true);
        return true;
    }