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Framework for writing connectors based on message processing

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package com.bytex.snamp.connector.dataStream;

import com.bytex.snamp.connector.attributes.AttributeDescriptor;
import com.bytex.snamp.connector.metrics.ArrivalsRecorder;
import com.bytex.snamp.instrumentation.measurements.jmx.TimeMeasurementNotification;
import org.osgi.framework.InvalidSyntaxException;

import javax.management.openmbean.CompositeData;
import javax.management.openmbean.CompositeType;
import java.time.Duration;

import static com.bytex.snamp.jmx.MetricsConverter.ARRIVALS_TYPE;
import static com.bytex.snamp.jmx.MetricsConverter.fromArrivals;

/**
 * Holds {@link com.bytex.snamp.connector.metrics.Arrivals} as attribute.
 * @since 2.0
 * @version 2.0
 */
final class ArrivalsAttribute extends MetricHolderAttribute {
    static final CompositeType TYPE = ARRIVALS_TYPE;
    static final String NAME = "arrivals";
    private static final long serialVersionUID = -5234028741040752357L;

    ArrivalsAttribute(final String name, final AttributeDescriptor descriptor) throws InvalidSyntaxException {
        super(TimeMeasurementNotification.class, name, TYPE, descriptor, metricName -> {
            final ArrivalsRecorder recorder = new ArrivalsRecorder(metricName);
            recorder.setChannels(DataStreamConnectorConfigurationDescriptionProvider.parseChannels(descriptor));
            return recorder;
        });
    }

    @Override
    CompositeData getValue(final ArrivalsRecorder metric) {
        return fromArrivals(metric);
    }

    @Override
    void updateMetric(final ArrivalsRecorder metric, final TimeMeasurementNotification notification) {
        metric.accept(notification.getMeasurement().convertTo(Duration.class));
    }

    @Override
    protected boolean isNotificationEnabled(final TimeMeasurementNotification notification) {
        return representsMeasurement(notification);
    }
}