aerogear_pipe.java

PipeManager.config("alerts", RestfulPipeConfiguration.class)
           .withUrl(new URL("http://livingontheedge.hawkular.org/"))
           .forClass(Developer.class);

LoaderPipe<Developer> pipe = PipeManager.get("alerts", activityInstance);
pipe.reset();
pipe.read(new ReadDevelopersActivityCallback());

public static class ReadDevelopersActivityCallback
        extends AbstractActivityCallback<List<Developer>> {
    @Override
    public void onSuccess(List<Developer> devs) {
        // Here you have a list of alerts active which can be sorted according to 
           Time including hours, months, year etc.
    }

    @Override
    public void onFailure(Exception e) {
        // Oops! Something is wrong. Probably your internet is down :P
    }
}