Examples with ResourceListener org.apache.geode.internal.cache.control.ResourceListener used on opensource projects

Example 1 with ResourceListener

use of org.apache.geode.internal.cache.control.ResourceListener in project geode by apache.

the class ResourceManagerDUnitTest method testResourceManagerBasics.

/**
   * Creates a cache in the controller and exercises all methods on the ResourceManager without
   * having any partitioned regions defined.
   */
@Test
public void testResourceManagerBasics() {
    Cache cache = getCache();
    // verify that getResourceManager works
    ResourceManager manager = cache.getResourceManager();
    assertNotNull(manager);
    // verify that getPartitionedRegionDetails returns empty set
    Set<PartitionRegionInfo> detailsSet = PartitionRegionHelper.getPartitionRegionInfo(cache);
    assertNotNull(detailsSet);
    assertEquals(Collections.emptySet(), detailsSet);
    ResourceListener listener = new ResourceListener() {

        public void onEvent(ResourceEvent event) {
        }
    };
    InternalResourceManager internalManager = (InternalResourceManager) manager;
    // verify that addResourceListener works
    internalManager.addResourceListener(listener);
    Set<ResourceListener> listeners = internalManager.getResourceListeners(ResourceType.HEAP_MEMORY);
    assertNotNull(listeners);
    assertEquals(1 + SYSTEM_LISTENERS, listeners.size());
    assertTrue(listeners.contains(listener));
    // verify that repeat adds result in only one entry of the listener
    internalManager.addResourceListener(ResourceType.HEAP_MEMORY, listener);
    listeners = internalManager.getResourceListeners(ResourceType.HEAP_MEMORY);
    assertEquals(1 + SYSTEM_LISTENERS, listeners.size());
    // verify that removeResourceListener works
    internalManager.removeResourceListener(listener);
    listeners = internalManager.getResourceListeners(ResourceType.HEAP_MEMORY);
    assertEquals(listeners.size(), SYSTEM_LISTENERS);
}