/* * * 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 * * 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 org.apache.hadoop.hbase.security.visibility; import java.io.IOException; import java.util.Optional; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.hbase.CoprocessorEnvironment; import org.apache.hadoop.hbase.coprocessor.ObserverContext; import org.apache.hadoop.hbase.coprocessor.RegionServerCoprocessor; import org.apache.hadoop.hbase.coprocessor.RegionServerCoprocessorEnvironment; import org.apache.hadoop.hbase.coprocessor.RegionServerObserver; import org.apache.hadoop.hbase.replication.ReplicationEndpoint; import org.apache.yetus.audience.InterfaceAudience; /** * A RegionServerObserver impl that provides the custom * VisibilityReplicationEndpoint. This class should be configured as the * 'hbase.coprocessor.regionserver.classes' for the visibility tags to be * replicated as string. The value for the configuration should be * 'org.apache.hadoop.hbase.security.visibility.VisibilityController$VisibilityReplication'. */ @InterfaceAudience.Private public class VisibilityReplication implements RegionServerCoprocessor, RegionServerObserver { private Configuration conf; private VisibilityLabelService visibilityLabelService; @Override public void start(CoprocessorEnvironment env) throws IOException { this.conf = env.getConfiguration(); visibilityLabelService = VisibilityLabelServiceManager.getInstance() .getVisibilityLabelService(this.conf); } @Override public void stop(CoprocessorEnvironment env) throws IOException { } @Override public Optional<RegionServerObserver> getRegionServerObserver() { return Optional.of(this); } @Override public ReplicationEndpoint postCreateReplicationEndPoint( ObserverContext<RegionServerCoprocessorEnvironment> ctx, ReplicationEndpoint endpoint) { return new VisibilityReplicationEndpoint(endpoint, visibilityLabelService); } }