| /* |
| * 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.coprocessor; |
| |
| import java.io.IOException; |
| import java.util.Optional; |
| import junit.framework.TestCase; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hbase.Coprocessor; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder; |
| import org.apache.hadoop.hbase.client.Durability; |
| import org.apache.hadoop.hbase.client.Put; |
| import org.apache.hadoop.hbase.client.RegionInfo; |
| import org.apache.hadoop.hbase.client.RegionInfoBuilder; |
| import org.apache.hadoop.hbase.client.TableDescriptor; |
| import org.apache.hadoop.hbase.client.TableDescriptorBuilder; |
| import org.apache.hadoop.hbase.regionserver.ChunkCreator; |
| import org.apache.hadoop.hbase.regionserver.HRegion; |
| import org.apache.hadoop.hbase.regionserver.MemStoreLAB; |
| import org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost; |
| import org.apache.hadoop.hbase.regionserver.RegionServerServices; |
| import org.apache.hadoop.hbase.testclassification.CoprocessorTests; |
| import org.apache.hadoop.hbase.testclassification.SmallTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.hadoop.hbase.wal.WALEdit; |
| import org.junit.ClassRule; |
| import org.junit.experimental.categories.Category; |
| import org.mockito.Mockito; |
| |
| @Category({CoprocessorTests.class, SmallTests.class}) |
| public class TestRegionObserverStacking extends TestCase { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestRegionObserverStacking.class); |
| |
| private static HBaseTestingUtility TEST_UTIL |
| = new HBaseTestingUtility(); |
| static final Path DIR = TEST_UTIL.getDataTestDir(); |
| |
| public static class ObserverA implements RegionCoprocessor, RegionObserver { |
| long id; |
| |
| @Override |
| public Optional<RegionObserver> getRegionObserver() { |
| return Optional.of(this); |
| } |
| |
| @Override |
| public void postPut(final ObserverContext<RegionCoprocessorEnvironment> c, |
| final Put put, final WALEdit edit, |
| final Durability durability) |
| throws IOException { |
| id = System.currentTimeMillis(); |
| try { |
| Thread.sleep(10); |
| } catch (InterruptedException ex) { |
| } |
| } |
| } |
| |
| public static class ObserverB implements RegionCoprocessor, RegionObserver { |
| long id; |
| |
| @Override |
| public Optional<RegionObserver> getRegionObserver() { |
| return Optional.of(this); |
| } |
| |
| @Override |
| public void postPut(final ObserverContext<RegionCoprocessorEnvironment> c, |
| final Put put, final WALEdit edit, |
| final Durability durability) |
| throws IOException { |
| id = System.currentTimeMillis(); |
| try { |
| Thread.sleep(10); |
| } catch (InterruptedException ex) { |
| } |
| } |
| } |
| |
| public static class ObserverC implements RegionCoprocessor, RegionObserver { |
| long id; |
| |
| @Override |
| public Optional<RegionObserver> getRegionObserver() { |
| return Optional.of(this); |
| } |
| |
| @Override |
| public void postPut(final ObserverContext<RegionCoprocessorEnvironment> c, |
| final Put put, final WALEdit edit, |
| final Durability durability) |
| throws IOException { |
| id = System.currentTimeMillis(); |
| try { |
| Thread.sleep(10); |
| } catch (InterruptedException ex) { |
| } |
| } |
| } |
| |
| HRegion initHRegion(byte[] tableName, String callingMethod, Configuration conf, |
| byte[]... families) throws IOException { |
| TableDescriptorBuilder builder = |
| TableDescriptorBuilder.newBuilder(TableName.valueOf(tableName)); |
| for (byte[] family : families) { |
| builder.setColumnFamily(ColumnFamilyDescriptorBuilder.of(family)); |
| } |
| TableDescriptor tableDescriptor = builder.build(); |
| ChunkCreator.initialize(MemStoreLAB.CHUNK_SIZE_DEFAULT, false, 0, 0, |
| 0, null, MemStoreLAB.INDEX_CHUNK_SIZE_PERCENTAGE_DEFAULT); |
| RegionInfo info = RegionInfoBuilder.newBuilder(tableDescriptor.getTableName()).build(); |
| Path path = new Path(DIR + callingMethod); |
| HRegion r = HBaseTestingUtility.createRegionAndWAL(info, path, conf, tableDescriptor); |
| // this following piece is a hack. currently a coprocessorHost |
| // is secretly loaded at OpenRegionHandler. we don't really |
| // start a region server here, so just manually create cphost |
| // and set it to region. |
| RegionCoprocessorHost host = new RegionCoprocessorHost(r, |
| Mockito.mock(RegionServerServices.class), conf); |
| r.setCoprocessorHost(host); |
| return r; |
| } |
| |
| public void testRegionObserverStacking() throws Exception { |
| byte[] ROW = Bytes.toBytes("testRow"); |
| byte[] TABLE = Bytes.toBytes(this.getClass().getSimpleName()); |
| byte[] A = Bytes.toBytes("A"); |
| byte[][] FAMILIES = new byte[][] { A } ; |
| |
| Configuration conf = TEST_UTIL.getConfiguration(); |
| HRegion region = initHRegion(TABLE, getClass().getName(), |
| conf, FAMILIES); |
| RegionCoprocessorHost h = region.getCoprocessorHost(); |
| h.load(ObserverA.class, Coprocessor.PRIORITY_HIGHEST, conf); |
| h.load(ObserverB.class, Coprocessor.PRIORITY_USER, conf); |
| h.load(ObserverC.class, Coprocessor.PRIORITY_LOWEST, conf); |
| |
| Put put = new Put(ROW); |
| put.addColumn(A, A, A); |
| region.put(put); |
| |
| Coprocessor c = h.findCoprocessor(ObserverA.class.getName()); |
| long idA = ((ObserverA)c).id; |
| c = h.findCoprocessor(ObserverB.class.getName()); |
| long idB = ((ObserverB)c).id; |
| c = h.findCoprocessor(ObserverC.class.getName()); |
| long idC = ((ObserverC)c).id; |
| |
| assertTrue(idA < idB); |
| assertTrue(idB < idC); |
| HBaseTestingUtility.closeRegionAndWAL(region); |
| } |
| } |