| /** |
| * 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.regionserver; |
| |
| import java.io.IOException; |
| import java.util.Optional; |
| |
| import org.apache.hadoop.hbase.client.TestFromClientSideWithCoprocessor; |
| import org.apache.hadoop.hbase.coprocessor.ObserverContext; |
| import org.apache.hadoop.hbase.coprocessor.RegionCoprocessor; |
| import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment; |
| import org.apache.hadoop.hbase.coprocessor.RegionObserver; |
| import org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker; |
| import org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest; |
| |
| /** |
| * RegionObserver that just reimplements the default behavior, in order to validate that all the |
| * necessary APIs for this are public This observer is also used in |
| * {@link TestFromClientSideWithCoprocessor} and {@link TestCompactionWithCoprocessor} to make sure |
| * that a wide range of functionality still behaves as expected. |
| */ |
| public class NoOpScanPolicyObserver implements RegionCoprocessor, RegionObserver { |
| |
| @Override |
| public Optional<RegionObserver> getRegionObserver() { |
| return Optional.of(this); |
| } |
| |
| @Override |
| public InternalScanner preFlush(ObserverContext<RegionCoprocessorEnvironment> c, Store store, |
| InternalScanner scanner, FlushLifeCycleTracker tracker) throws IOException { |
| return new DelegatingInternalScanner(scanner); |
| } |
| |
| @Override |
| public InternalScanner preCompact(ObserverContext<RegionCoprocessorEnvironment> c, Store store, |
| InternalScanner scanner, ScanType scanType, CompactionLifeCycleTracker tracker, |
| CompactionRequest request) throws IOException { |
| return new DelegatingInternalScanner(scanner); |
| } |
| |
| // TODO add for postScannerOpen |
| } |