Datameer Event Bus

Datameer's event bus pushes events that take place within workbooks and for permissions. Developers can create a plug-in to subscribe and listen to all or specific events that are being sent on the bus. These events can then be used to record or automate other processes. For example, sending an email out after a workbook has successfully completed.

Accessing Datameer's Event Bus

Build a plug-in that subscribes to workbook events following the directions on Using the Plug-in SDK with the DatameerEventBus extension.

This example is of a logging subscriber that listens to a specific event. The following is subscribed to all events that are published.

package datameer.das.plugin.prototypes.eventbus.extension;

import org.apache.log4j.Logger;
import datameer.com.google.common.eventbus.Subscribe;
import datameer.dap.sdk.event.DatameerEventBusSubscriber;

public final class SimpleLoggingEventSubscriber extends DatameerEventBusSubscriber {

    private final Logger _logger = Logger.getLogger(SimpleLoggingEventSubscriber.class);

    @Override
    public String getName() {
        return "Records every published event via Log4j";
    }

    @Subscribe
    public void handle(final Object input) {
        _logger.info(input);
    }
}

The plug-in can listen to multiple events simultaneously by adding in additional subscriptions as seen below:

@Subscribe
public void handle(final FileEvent input) {
    _logger.info(input);
}

Default property