| /** |
| * 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.client; |
| |
| import static junit.framework.TestCase.assertTrue; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.Optional; |
| import org.apache.hadoop.hbase.Cell; |
| import org.apache.hadoop.hbase.CellBuilderType; |
| import org.apache.hadoop.hbase.CellUtil; |
| import org.apache.hadoop.hbase.CoprocessorEnvironment; |
| import org.apache.hadoop.hbase.ExtendedCellBuilderFactory; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.KeyValue; |
| import org.apache.hadoop.hbase.TableName; |
| 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.testclassification.ClientTests; |
| import org.apache.hadoop.hbase.testclassification.MediumTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| @Category({MediumTests.class, ClientTests.class}) |
| public class TestResultFromCoprocessor { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestResultFromCoprocessor.class); |
| |
| private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility(); |
| private static final byte[] ROW = Bytes.toBytes("normal_row"); |
| private static final byte[] FAMILY = Bytes.toBytes("fm"); |
| private static final byte[] QUAL = Bytes.toBytes("qual"); |
| private static final byte[] VALUE = Bytes.toBytes(100L); |
| private static final byte[] FIXED_VALUE = Bytes.toBytes("fixed_value"); |
| private static final Cell FIXED_CELL = ExtendedCellBuilderFactory |
| .create(CellBuilderType.DEEP_COPY) |
| .setRow(ROW).setFamily(FAMILY) |
| .setQualifier(QUAL).setTimestamp(0) |
| .setType(KeyValue.Type.Put.getCode()) |
| .setValue(FIXED_VALUE) |
| .build(); |
| private static final Result FIXED_RESULT = Result.create(Arrays.asList(FIXED_CELL)); |
| private static final TableName TABLE_NAME = TableName.valueOf("TestResultFromCoprocessor"); |
| @BeforeClass |
| public static void setUpBeforeClass() throws Exception { |
| TEST_UTIL.startMiniCluster(3); |
| TableDescriptor desc = TableDescriptorBuilder.newBuilder(TABLE_NAME) |
| .setCoprocessor(MyObserver.class.getName()) |
| .setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAMILY)) |
| .build(); |
| TEST_UTIL.getAdmin().createTable(desc); |
| } |
| |
| @AfterClass |
| public static void tearDownAfterClass() throws Exception { |
| TEST_UTIL.shutdownMiniCluster(); |
| } |
| |
| @Test |
| public void testAppend() throws IOException { |
| try (Table t = TEST_UTIL.getConnection().getTable(TABLE_NAME)) { |
| Put put = new Put(ROW); |
| put.addColumn(FAMILY, QUAL, VALUE); |
| t.put(put); |
| assertRowAndValue(t.get(new Get(ROW)), ROW, VALUE); |
| Append append = new Append(ROW); |
| append.addColumn(FAMILY, QUAL, FIXED_VALUE); |
| assertRowAndValue(t.append(append), ROW, FIXED_VALUE); |
| assertRowAndValue(t.get(new Get(ROW)), ROW, Bytes.add(VALUE, FIXED_VALUE)); |
| } |
| } |
| |
| @Test |
| public void testIncrement() throws IOException { |
| try (Table t = TEST_UTIL.getConnection().getTable(TABLE_NAME)) { |
| Put put = new Put(ROW); |
| put.addColumn(FAMILY, QUAL, VALUE); |
| t.put(put); |
| assertRowAndValue(t.get(new Get(ROW)), ROW, VALUE); |
| Increment inc = new Increment(ROW); |
| inc.addColumn(FAMILY, QUAL, 99); |
| assertRowAndValue(t.increment(inc), ROW, FIXED_VALUE); |
| assertRowAndValue(t.get(new Get(ROW)), ROW, Bytes.toBytes(199L)); |
| } |
| } |
| |
| private static void assertRowAndValue(Result r, byte[] row, byte[] value) { |
| for (Cell c : r.rawCells()) { |
| assertTrue(Bytes.equals(CellUtil.cloneRow(c), row)); |
| assertTrue(Bytes.equals(CellUtil.cloneValue(c), value)); |
| } |
| } |
| |
| public static class MyObserver implements RegionCoprocessor, RegionObserver { |
| @Override |
| public Optional<RegionObserver> getRegionObserver() { |
| return Optional.of(this); |
| } |
| |
| @Override |
| public Result postAppend(final ObserverContext<RegionCoprocessorEnvironment> c, |
| final Append append, final Result result) { |
| return FIXED_RESULT; |
| } |
| |
| @Override |
| public Result postIncrement(final ObserverContext<RegionCoprocessorEnvironment> c, |
| final Increment increment, final Result result) { |
| return FIXED_RESULT; |
| } |
| |
| @Override |
| public void start(CoprocessorEnvironment env) throws IOException { |
| } |
| |
| @Override |
| public void stop(CoprocessorEnvironment env) throws IOException { |
| } |
| } |
| |
| } |