public IDynamicController getStatusController() {
if (statusController == null) {
if (SicsUtils.getDescendantComponent(getComponent(), NODE_STATUS) == null) {
// Feedback status node does not exist
return null;
}
statusController = (IDynamicController) getChildController(NODE_STATUS);
statusController.addComponentListener(
new DynamicControllerListenerAdapter() {
public void valueChanged(IDynamicController controller, IComponentData newValue) {
// Mark status changed
statusChanged = true;
// Update controller status
try {
CommandStatus commandStatus = getCommandStatus();
if (commandStatus.equals(CommandStatus.BUSY)) {
CommandController.this.setStatus(ControllerStatus.RUNNING);
} else {
CommandController.this.setStatus(ControllerStatus.OK);
}
} catch (SicsIOException e) {
logger.error("Failed to obtain status for command " + getPath(), e);
}
}
});
}
return statusController;
}
public void activate() {
// Listen to the status controller if it is available
if (SicsUtils.getDescendantComponent(getComponent(), NODE_STATUS) != null) {
getStatusController();
}
}
public CommandController(Component component) {
super(component);
SicsUtils.getDescendantComponent(component, "NODE_STATUS");
}