--- /dev/null
+/*
+ * Copyright 2015-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.atomix.utils.event;
+
+/**
+ * Basis for components which need to export listener mechanism.
+ */
+public abstract class AbstractListenerManager<E extends Event, L extends EventListener<E>> implements ListenerService<E, L> {
+
+ protected final ListenerRegistry<E, L> listenerRegistry = new ListenerRegistry<>();
+
+ @Override
+ public void addListener(L listener) {
+ listenerRegistry.addListener(listener);
+ }
+
+ @Override
+ public void removeListener(L listener) {
+ listenerRegistry.removeListener(listener);
+ }
+
+ /**
+ * Posts the specified event to the local event dispatcher.
+ *
+ * @param event event to be posted; may be null
+ */
+ protected void post(E event) {
+ listenerRegistry.process(event);
+ }
+
+}