| /** |
| * 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 org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.List; |
| import java.util.concurrent.ExecutionException; |
| import java.util.stream.Collectors; |
| import java.util.stream.IntStream; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.TableName; |
| 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; |
| |
| /** |
| * With filter we may stop at a middle of row and think that we still have more cells for the |
| * current row but actually all the remaining cells will be filtered out by the filter. So it will |
| * lead to a Result that mayHaveMoreCellsInRow is true but actually there are no cells for the same |
| * row. Here we want to test if our limited scan still works. |
| */ |
| @Category({ MediumTests.class, ClientTests.class }) |
| public class TestRawAsyncTableLimitedScanWithFilter { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestRawAsyncTableLimitedScanWithFilter.class); |
| |
| private static final HBaseTestingUtility UTIL = new HBaseTestingUtility(); |
| |
| private static final TableName TABLE_NAME = TableName.valueOf("TestRegionScanner"); |
| |
| private static final byte[] FAMILY = Bytes.toBytes("cf"); |
| |
| private static final byte[][] CQS = |
| { Bytes.toBytes("cq1"), Bytes.toBytes("cq2"), Bytes.toBytes("cq3"), Bytes.toBytes("cq4") }; |
| |
| private static int ROW_COUNT = 10; |
| |
| private static AsyncConnection CONN; |
| |
| private static AsyncTable<?> TABLE; |
| |
| @BeforeClass |
| public static void setUp() throws Exception { |
| UTIL.startMiniCluster(1); |
| UTIL.createTable(TABLE_NAME, FAMILY); |
| CONN = ConnectionFactory.createAsyncConnection(UTIL.getConfiguration()).get(); |
| TABLE = CONN.getTable(TABLE_NAME); |
| TABLE.putAll(IntStream.range(0, ROW_COUNT).mapToObj(i -> { |
| Put put = new Put(Bytes.toBytes(i)); |
| IntStream.range(0, CQS.length) |
| .forEach(j -> put.addColumn(FAMILY, CQS[j], Bytes.toBytes((j + 1) * i))); |
| return put; |
| }).collect(Collectors.toList())).get(); |
| } |
| |
| @AfterClass |
| public static void tearDown() throws Exception { |
| if (CONN != null) { |
| CONN.close(); |
| } |
| UTIL.shutdownMiniCluster(); |
| } |
| |
| @Test |
| public void testCompleteResult() throws InterruptedException, ExecutionException { |
| int limit = 5; |
| Scan scan = |
| new Scan().setFilter(new ColumnCountOnRowFilter(2)).setMaxResultSize(1).setLimit(limit); |
| List<Result> results = TABLE.scanAll(scan).get(); |
| assertEquals(limit, results.size()); |
| IntStream.range(0, limit).forEach(i -> { |
| Result result = results.get(i); |
| assertEquals(i, Bytes.toInt(result.getRow())); |
| assertEquals(2, result.size()); |
| assertFalse(result.mayHaveMoreCellsInRow()); |
| assertEquals(i, Bytes.toInt(result.getValue(FAMILY, CQS[0]))); |
| assertEquals(2 * i, Bytes.toInt(result.getValue(FAMILY, CQS[1]))); |
| }); |
| } |
| |
| @Test |
| public void testAllowPartial() throws InterruptedException, ExecutionException { |
| int limit = 5; |
| Scan scan = new Scan().setFilter(new ColumnCountOnRowFilter(2)).setMaxResultSize(1) |
| .setAllowPartialResults(true).setLimit(limit); |
| List<Result> results = TABLE.scanAll(scan).get(); |
| assertEquals(2 * limit, results.size()); |
| IntStream.range(0, 2 * limit).forEach(i -> { |
| int key = i / 2; |
| Result result = results.get(i); |
| assertEquals(key, Bytes.toInt(result.getRow())); |
| assertEquals(1, result.size()); |
| assertTrue(result.mayHaveMoreCellsInRow()); |
| int cqIndex = i % 2; |
| assertEquals(key * (cqIndex + 1), Bytes.toInt(result.getValue(FAMILY, CQS[cqIndex]))); |
| }); |
| } |
| |
| @Test |
| public void testBatchAllowPartial() throws InterruptedException, ExecutionException { |
| int limit = 5; |
| Scan scan = new Scan().setFilter(new ColumnCountOnRowFilter(3)).setBatch(2).setMaxResultSize(1) |
| .setAllowPartialResults(true).setLimit(limit); |
| List<Result> results = TABLE.scanAll(scan).get(); |
| assertEquals(3 * limit, results.size()); |
| IntStream.range(0, 3 * limit).forEach(i -> { |
| int key = i / 3; |
| Result result = results.get(i); |
| assertEquals(key, Bytes.toInt(result.getRow())); |
| assertEquals(1, result.size()); |
| assertTrue(result.mayHaveMoreCellsInRow()); |
| int cqIndex = i % 3; |
| assertEquals(key * (cqIndex + 1), Bytes.toInt(result.getValue(FAMILY, CQS[cqIndex]))); |
| }); |
| } |
| |
| @Test |
| public void testBatch() throws InterruptedException, ExecutionException { |
| int limit = 5; |
| Scan scan = new Scan().setFilter(new ColumnCountOnRowFilter(2)).setBatch(2).setMaxResultSize(1) |
| .setLimit(limit); |
| List<Result> results = TABLE.scanAll(scan).get(); |
| assertEquals(limit, results.size()); |
| IntStream.range(0, limit).forEach(i -> { |
| Result result = results.get(i); |
| assertEquals(i, Bytes.toInt(result.getRow())); |
| assertEquals(2, result.size()); |
| assertTrue(result.mayHaveMoreCellsInRow()); |
| assertEquals(i, Bytes.toInt(result.getValue(FAMILY, CQS[0]))); |
| assertEquals(2 * i, Bytes.toInt(result.getValue(FAMILY, CQS[1]))); |
| }); |
| } |
| |
| @Test |
| public void testBatchAndFilterDiffer() throws InterruptedException, ExecutionException { |
| int limit = 5; |
| Scan scan = new Scan().setFilter(new ColumnCountOnRowFilter(3)).setBatch(2).setMaxResultSize(1) |
| .setLimit(limit); |
| List<Result> results = TABLE.scanAll(scan).get(); |
| assertEquals(2 * limit, results.size()); |
| IntStream.range(0, limit).forEach(i -> { |
| Result result = results.get(2 * i); |
| assertEquals(i, Bytes.toInt(result.getRow())); |
| assertEquals(2, result.size()); |
| assertTrue(result.mayHaveMoreCellsInRow()); |
| assertEquals(i, Bytes.toInt(result.getValue(FAMILY, CQS[0]))); |
| assertEquals(2 * i, Bytes.toInt(result.getValue(FAMILY, CQS[1]))); |
| result = results.get(2 * i + 1); |
| assertEquals(i, Bytes.toInt(result.getRow())); |
| assertEquals(1, result.size()); |
| assertFalse(result.mayHaveMoreCellsInRow()); |
| assertEquals(3 * i, Bytes.toInt(result.getValue(FAMILY, CQS[2]))); |
| }); |
| } |
| } |