| /** |
| * 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.assertSame; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import org.apache.hadoop.hbase.Cell; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.KeyValue; |
| import org.apache.hadoop.hbase.testclassification.ClientTests; |
| import org.apache.hadoop.hbase.testclassification.SmallTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| @Category({ SmallTests.class, ClientTests.class }) |
| public class TestBatchScanResultCache { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestBatchScanResultCache.class); |
| |
| private static byte[] CF = Bytes.toBytes("cf"); |
| |
| private BatchScanResultCache resultCache; |
| |
| @Before |
| public void setUp() { |
| resultCache = new BatchScanResultCache(4); |
| } |
| |
| @After |
| public void tearDown() { |
| resultCache.clear(); |
| resultCache = null; |
| } |
| |
| static Cell createCell(byte[] cf, int key, int cq) { |
| return new KeyValue(Bytes.toBytes(key), cf, Bytes.toBytes("cq" + cq), Bytes.toBytes(key)); |
| } |
| |
| static Cell[] createCells(byte[] cf, int key, int numCqs) { |
| Cell[] cells = new Cell[numCqs]; |
| for (int i = 0; i < numCqs; i++) { |
| cells[i] = createCell(cf, key, i); |
| } |
| return cells; |
| } |
| |
| private void assertResultEquals(Result result, int key, int start, int to) { |
| assertEquals(to - start, result.size()); |
| for (int i = start; i < to; i++) { |
| assertEquals(key, Bytes.toInt(result.getValue(CF, Bytes.toBytes("cq" + i)))); |
| } |
| assertEquals(to - start == 4, result.mayHaveMoreCellsInRow()); |
| } |
| |
| @Test |
| public void test() throws IOException { |
| assertSame(ScanResultCache.EMPTY_RESULT_ARRAY, |
| resultCache.addAndGet(ScanResultCache.EMPTY_RESULT_ARRAY, false)); |
| assertSame(ScanResultCache.EMPTY_RESULT_ARRAY, |
| resultCache.addAndGet(ScanResultCache.EMPTY_RESULT_ARRAY, true)); |
| |
| Cell[] cells1 = createCells(CF, 1, 10); |
| Cell[] cells2 = createCells(CF, 2, 10); |
| Cell[] cells3 = createCells(CF, 3, 10); |
| assertEquals(0, resultCache.addAndGet( |
| new Result[] { Result.create(Arrays.copyOf(cells1, 3), null, false, true) }, false).length); |
| Result[] results = resultCache.addAndGet( |
| new Result[] { Result.create(Arrays.copyOfRange(cells1, 3, 7), null, false, true), |
| Result.create(Arrays.copyOfRange(cells1, 7, 10), null, false, true) }, |
| false); |
| assertEquals(2, results.length); |
| assertResultEquals(results[0], 1, 0, 4); |
| assertResultEquals(results[1], 1, 4, 8); |
| results = resultCache.addAndGet(ScanResultCache.EMPTY_RESULT_ARRAY, false); |
| assertEquals(1, results.length); |
| assertResultEquals(results[0], 1, 8, 10); |
| |
| results = resultCache.addAndGet( |
| new Result[] { Result.create(Arrays.copyOfRange(cells2, 0, 4), null, false, true), |
| Result.create(Arrays.copyOfRange(cells2, 4, 8), null, false, true), |
| Result.create(Arrays.copyOfRange(cells2, 8, 10), null, false, true), |
| Result.create(Arrays.copyOfRange(cells3, 0, 4), null, false, true), |
| Result.create(Arrays.copyOfRange(cells3, 4, 8), null, false, true), |
| Result.create(Arrays.copyOfRange(cells3, 8, 10), null, false, false) }, |
| false); |
| assertEquals(6, results.length); |
| assertResultEquals(results[0], 2, 0, 4); |
| assertResultEquals(results[1], 2, 4, 8); |
| assertResultEquals(results[2], 2, 8, 10); |
| assertResultEquals(results[3], 3, 0, 4); |
| assertResultEquals(results[4], 3, 4, 8); |
| assertResultEquals(results[5], 3, 8, 10); |
| } |
| } |