@@ -0,0 +1,2907 @@
+/*%0A * Licensed to the Apache Software Foundation (ASF) under one%0A * or more contributor license agreements.  See the NOTICE file%0A * distributed with this work for additional information%0A * regarding copyright ownership.  The ASF licenses this file%0A * to you under the Apache License, Version 2.0 (the%0A * %22License%22); you may not use this file except in compliance%0A * with the License.  You may obtain a copy of the License at%0A *%0A *     http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A */%0A%0Apackage org.apache.flink.runtime.resourcemanager.active;%0A%0Aimport org.apache.flink.configuration.Configuration;%0Aimport org.apache.flink.runtime.clusterframework.types.ResourceIDRetrievable;%0Aimport org.apache.flink.runtime.concurrent.ScheduledExecutor;%0Aimport org.apache.flink.util.Preconditions;%0A%0Aimport org.slf4j.Logger;%0Aimport org.slf4j.LoggerFactory;%0A%0A/**%0A * Abstract common base class for implementations of %7B@link ResourceManagerDriver%7D.%0A */%0Apublic abstract class AbstractResourceManagerDriver%3CWorkerType extends ResourceIDRetrievable%3E%0A%09implements ResourceManagerDriver%3CWorkerType%3E %7B%0A%0A%09protected final Logger log = LoggerFactory.getLogger(getClass());%0A%0A%09protected final Configuration flinkConfig;%0A%09protected final Configuration flinkClientConfig;%0A%0A%09private ResourceEventHandler%3CWorkerType%3E resourceEventHandler = null;%0A%09private ScheduledExecutor mainThreadExecutor = null;%0A%0A%09public AbstractResourceManagerDriver(%0A%09%09%09final Configuration flinkConfig,%0A%09%09%09final Configuration flinkClientConfig) %7B%0A%09%09this.flinkConfig = Preconditions.checkNotNull(flinkConfig);%0A%09%09this.flinkClientConfig = Preconditions.checkNotNull(flinkClientConfig);%0A%09%7D%0A%0A%09protected final ResourceEventHandler%3CWorkerType%3E getResourceEventHandler() %7B%0A%09%09Preconditions.checkState(resourceEventHandler != null,%0A%09%09%09%09%22Cannot get resource event handler. Resource manager driver is not initialized.%22);%0A%09%09return resourceEventHandler;%0A%09%7D%0A%0A%09protected final ScheduledExecutor getMainThreadExecutor() %7B%0A%09%09Preconditions.checkState(mainThreadExecutor != null,%0A%09%09%09%09%22Cannot get main thread executor. Resource manager driver is not initialized.%22);%0A%09%09return mainThreadExecutor;%0A%09%7D%0A%0A%09@Override%0A%09public final void initialize(%0A%09%09%09ResourceEventHandler%3CWorkerType%3E resourceEventHandler,%0A%09%09%09ScheduledExecutor mainThreadExecutor) throws Exception %7B%0A%09%09this.resourceEventHandler = Preconditions.checkNotNull(resourceEventHandler);%0A%09%09this.mainThreadExecutor = Preconditions.checkNotNull(mainThreadExecutor);%0A%0A%09%09initializeInternal();%0A%09%7D%0A%0A%09/**%0A%09 * Initialize the deployment specific components.%0A%09 */%0A%09protected abstract void initializeInternal() throws Exception;%0A%7D%0A

Introduce AbstractResourceManagerDriver as common base class of resource manager drivers.