Examples with SynchronousEventListener org.apache.jackrabbit.core.observation.SynchronousEventListener used on opensource projects

Example 1 with SynchronousEventListener

use of org.apache.jackrabbit.core.observation.SynchronousEventListener in project jackrabbit by apache.

the class ShareableNodeTest method testObservation.

//------------------------------------------------------ specification tests
/**
     * Verify that observation events are sent only once (6.13.15).
     */
public void testObservation() throws Exception {
    // setup parent nodes and first child
    Node a1 = testRootNode.addNode("a1");
    Node a2 = testRootNode.addNode("a2");
    Node b1 = a1.addNode("b1");
    testRootNode.save();
    // add mixin
    b1.addMixin("mix:shareable");
    b1.save();
    // clone
    Workspace workspace = b1.getSession().getWorkspace();
    workspace.clone(workspace.getName(), b1.getPath(), a2.getPath() + "/b2", false);
    // event listener that counts events received
    class EventCounter implements SynchronousEventListener {

        private int count;

        public void onEvent(EventIterator events) {
            while (events.hasNext()) {
                events.nextEvent();
                count++;
            }
        }

        public int getEventCount() {
            return count;
        }

        public void resetCount() {
            count = 0;
        }
    }
    EventCounter el = new EventCounter();
    ObservationManager om = superuser.getWorkspace().getObservationManager();
    // add node underneath shared set: verify it generates one event only
    om.addEventListener(el, Event.NODE_ADDED, testRootNode.getPath(), true, null, null, false);
    b1.addNode("c");
    b1.save();
    superuser.getWorkspace().getObservationManager().removeEventListener(el);
    assertEquals(1, el.getEventCount());
    // remove node underneath shared set: verify it generates one event only
    el.resetCount();
    om.addEventListener(el, Event.NODE_REMOVED, testRootNode.getPath(), true, null, null, false);
    b1.getNode("c").remove();
    b1.save();
    superuser.getWorkspace().getObservationManager().removeEventListener(el);
    assertEquals(1, el.getEventCount());
    // add property underneath shared set: verify it generates one event only
    el.resetCount();
    om.addEventListener(el, Event.PROPERTY_ADDED, testRootNode.getPath(), true, null, null, false);
    b1.setProperty("c", "1");
    b1.save();
    superuser.getWorkspace().getObservationManager().removeEventListener(el);
    assertEquals(1, el.getEventCount());
    // modify property underneath shared set: verify it generates one event only
    el.resetCount();
    om.addEventListener(el, Event.PROPERTY_CHANGED, testRootNode.getPath(), true, null, null, false);
    b1.setProperty("c", "2");
    b1.save();
    superuser.getWorkspace().getObservationManager().removeEventListener(el);
    assertEquals(1, el.getEventCount());
    // remove property underneath shared set: verify it generates one event only
    el.resetCount();
    om.addEventListener(el, Event.PROPERTY_REMOVED, testRootNode.getPath(), true, null, null, false);
    b1.getProperty("c").remove();
    b1.save();
    superuser.getWorkspace().getObservationManager().removeEventListener(el);
    assertEquals(1, el.getEventCount());
}