IOService: fire event when data is opened or saved

Author: ctrueden

src/main/java/org/scijava/io/DefaultIOService.java

@@ -34,6 +34,8 @@
 import java.io.IOException;
 
 import org.scijava.event.EventService;
+import org.scijava.io.event.DataOpenedEvent;
+import org.scijava.io.event.DataSavedEvent;
 import org.scijava.log.LogService;
 import org.scijava.plugin.AbstractHandlerService;
 import org.scijava.plugin.Parameter;
@@ -80,14 +82,17 @@ public <D> IOPlugin<D> getSaver(final D data, final String destination) {
 
 	@Override
 	public Object open(final String source) throws IOException {
-		return getOpener(source).open(source);
+		final Object data = getOpener(source).open(source);
+		eventService.publish(new DataOpenedEvent(source, data));
+		return data;
 	}
 
 	@Override
 	public void save(final Object data, final String destination)
 		throws IOException
 	{
 		getSaver(data, destination).save(data, destination);
+		eventService.publish(new DataSavedEvent(destination, data));
 	}
 
 	// -- HandlerService methods --