amaliujia commented on a change in pull request #1784: URL: https://github.com/apache/ozone/pull/1784#discussion_r565524588
########## File path: hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/ha/SCMServiceManager.java ########## @@ -0,0 +1,67 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with this + * work for additional information regarding copyright ownership. The ASF + * licenses this file to you 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 + * <p> + * http://www.apache.org/licenses/LICENSE-2.0 + * <p> + * 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 org.apache.hadoop.hdds.scm.ha; + +import com.google.common.base.Preconditions; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import org.apache.hadoop.hdds.scm.ha.SCMService.*; + +import java.util.ArrayList; +import java.util.List; + +/** + * Manipulate background services in SCM, including ReplicationManager, + * SCMBlockDeletingService and BackgroundPipelineCreator. + */ +public final class SCMServiceManager { + private static final Logger LOG = + LoggerFactory.getLogger(SCMServiceManager.class); + + private final List<SCMService> services = new ArrayList<>(); + + /** + * Register a SCMService to SCMServiceManager. + */ + public synchronized void register(SCMService service) { + Preconditions.checkNotNull(service); + LOG.info("register Service {}.", service.getServiceName()); + services.add(service); + } + + /** + * Notify raft or safe mode related status changed. + */ + public synchronized void notifyStatusChanged() { Review comment: SG! ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@ozone.apache.org For additional commands, e-mail: issues-h...@ozone.apache.org
