| /* |
| * Copyright 2010 The Apache Software Foundation |
| * |
| * 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 junit.framework.TestCase; |
| import org.apache.hadoop.hbase.KeyValue; |
| import org.apache.hadoop.hbase.KeyValueTestUtil; |
| import org.apache.hadoop.hbase.client.Scan; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.mockito.Mockito; |
| import org.mockito.stubbing.OngoingStubbing; |
| |
| import com.google.common.collect.Lists; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.NavigableSet; |
| import java.util.TreeSet; |
| import static org.apache.hadoop.hbase.regionserver.KeyValueScanFixture.scanFixture; |
| |
| public class TestStoreScanner extends TestCase { |
| private static final String CF_STR = "cf"; |
| final byte [] CF = Bytes.toBytes(CF_STR); |
| |
| /* |
| * Test utility for building a NavigableSet for scanners. |
| * @param strCols |
| * @return |
| */ |
| NavigableSet<byte[]> getCols(String ...strCols) { |
| NavigableSet<byte[]> cols = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR); |
| for (String col : strCols) { |
| byte[] bytes = Bytes.toBytes(col); |
| cols.add(bytes); |
| } |
| return cols; |
| } |
| |
| public void testScanTimeRange() throws IOException { |
| String r1 = "R1"; |
| // returns only 1 of these 2 even though same timestamp |
| KeyValue [] kvs = new KeyValue[] { |
| KeyValueTestUtil.create(r1, CF_STR, "a", 1, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create(r1, CF_STR, "a", 2, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create(r1, CF_STR, "a", 3, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create(r1, CF_STR, "a", 4, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create(r1, CF_STR, "a", 5, KeyValue.Type.Put, "dont-care"), |
| }; |
| List<KeyValueScanner> scanners = Arrays.<KeyValueScanner>asList( |
| new KeyValueScanner[] { |
| new KeyValueScanFixture(KeyValue.COMPARATOR, kvs) |
| }); |
| Scan scanSpec = new Scan(Bytes.toBytes(r1)); |
| scanSpec.setTimeRange(0, 6); |
| scanSpec.setMaxVersions(); |
| StoreScanner scan = |
| new StoreScanner(scanSpec, CF, Long.MAX_VALUE, |
| KeyValue.COMPARATOR, getCols("a"), scanners); |
| List<KeyValue> results = new ArrayList<KeyValue>(); |
| assertEquals(true, scan.next(results)); |
| assertEquals(5, results.size()); |
| assertEquals(kvs[kvs.length - 1], results.get(0)); |
| // Scan limited TimeRange |
| scanSpec = new Scan(Bytes.toBytes(r1)); |
| scanSpec.setTimeRange(1, 3); |
| scanSpec.setMaxVersions(); |
| scan = new StoreScanner(scanSpec, CF, Long.MAX_VALUE, |
| KeyValue.COMPARATOR, getCols("a"), scanners); |
| results = new ArrayList<KeyValue>(); |
| assertEquals(true, scan.next(results)); |
| assertEquals(2, results.size()); |
| // Another range. |
| scanSpec = new Scan(Bytes.toBytes(r1)); |
| scanSpec.setTimeRange(5, 10); |
| scanSpec.setMaxVersions(); |
| scan = new StoreScanner(scanSpec, CF, Long.MAX_VALUE, |
| KeyValue.COMPARATOR, getCols("a"), scanners); |
| results = new ArrayList<KeyValue>(); |
| assertEquals(true, scan.next(results)); |
| assertEquals(1, results.size()); |
| // See how TimeRange and Versions interact. |
| // Another range. |
| scanSpec = new Scan(Bytes.toBytes(r1)); |
| scanSpec.setTimeRange(0, 10); |
| scanSpec.setMaxVersions(3); |
| scan = new StoreScanner(scanSpec, CF, Long.MAX_VALUE, |
| KeyValue.COMPARATOR, getCols("a"), scanners); |
| results = new ArrayList<KeyValue>(); |
| assertEquals(true, scan.next(results)); |
| assertEquals(3, results.size()); |
| } |
| |
| public void testScanSameTimestamp() throws IOException { |
| // returns only 1 of these 2 even though same timestamp |
| KeyValue [] kvs = new KeyValue[] { |
| KeyValueTestUtil.create("R1", "cf", "a", 1, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "a", 1, KeyValue.Type.Put, "dont-care"), |
| }; |
| List<KeyValueScanner> scanners = Arrays.asList( |
| new KeyValueScanner[] { |
| new KeyValueScanFixture(KeyValue.COMPARATOR, kvs) |
| }); |
| |
| Scan scanSpec = new Scan(Bytes.toBytes("R1")); |
| // this only uses maxVersions (default=1) and TimeRange (default=all) |
| StoreScanner scan = |
| new StoreScanner(scanSpec, CF, Long.MAX_VALUE, |
| KeyValue.COMPARATOR, getCols("a"), |
| scanners); |
| |
| List<KeyValue> results = new ArrayList<KeyValue>(); |
| assertEquals(true, scan.next(results)); |
| assertEquals(1, results.size()); |
| assertEquals(kvs[0], results.get(0)); |
| } |
| |
| /* |
| * Test test shows exactly how the matcher's return codes confuses the StoreScanner |
| * and prevent it from doing the right thing. Seeking once, then nexting twice |
| * should return R1, then R2, but in this case it doesnt. |
| * TODO this comment makes no sense above. Appears to do the right thing. |
| * @throws IOException |
| */ |
| public void testWontNextToNext() throws IOException { |
| // build the scan file: |
| KeyValue [] kvs = new KeyValue[] { |
| KeyValueTestUtil.create("R1", "cf", "a", 2, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "a", 1, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R2", "cf", "a", 1, KeyValue.Type.Put, "dont-care") |
| }; |
| List<KeyValueScanner> scanners = scanFixture(kvs); |
| |
| Scan scanSpec = new Scan(Bytes.toBytes("R1")); |
| // this only uses maxVersions (default=1) and TimeRange (default=all) |
| StoreScanner scan = |
| new StoreScanner(scanSpec, CF, Long.MAX_VALUE, |
| KeyValue.COMPARATOR, getCols("a"), |
| scanners); |
| |
| List<KeyValue> results = new ArrayList<KeyValue>(); |
| scan.next(results); |
| assertEquals(1, results.size()); |
| assertEquals(kvs[0], results.get(0)); |
| // should be ok... |
| // now scan _next_ again. |
| results.clear(); |
| scan.next(results); |
| assertEquals(1, results.size()); |
| assertEquals(kvs[2], results.get(0)); |
| |
| results.clear(); |
| scan.next(results); |
| assertEquals(0, results.size()); |
| |
| } |
| |
| |
| public void testDeleteVersionSameTimestamp() throws IOException { |
| KeyValue [] kvs = new KeyValue [] { |
| KeyValueTestUtil.create("R1", "cf", "a", 1, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "a", 1, KeyValue.Type.Delete, "dont-care"), |
| }; |
| List<KeyValueScanner> scanners = scanFixture(kvs); |
| Scan scanSpec = new Scan(Bytes.toBytes("R1")); |
| StoreScanner scan = |
| new StoreScanner(scanSpec, CF, Long.MAX_VALUE, KeyValue.COMPARATOR, |
| getCols("a"), scanners); |
| |
| List<KeyValue> results = new ArrayList<KeyValue>(); |
| assertFalse(scan.next(results)); |
| assertEquals(0, results.size()); |
| } |
| |
| /* |
| * Test the case where there is a delete row 'in front of' the next row, the scanner |
| * will move to the next row. |
| */ |
| public void testDeletedRowThenGoodRow() throws IOException { |
| KeyValue [] kvs = new KeyValue [] { |
| KeyValueTestUtil.create("R1", "cf", "a", 1, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "a", 1, KeyValue.Type.Delete, "dont-care"), |
| KeyValueTestUtil.create("R2", "cf", "a", 20, KeyValue.Type.Put, "dont-care") |
| }; |
| List<KeyValueScanner> scanners = scanFixture(kvs); |
| Scan scanSpec = new Scan(Bytes.toBytes("R1")); |
| StoreScanner scan = |
| new StoreScanner(scanSpec, CF, Long.MAX_VALUE, KeyValue.COMPARATOR, |
| getCols("a"), scanners); |
| |
| List<KeyValue> results = new ArrayList<KeyValue>(); |
| assertEquals(true, scan.next(results)); |
| assertEquals(0, results.size()); |
| |
| assertEquals(true, scan.next(results)); |
| assertEquals(1, results.size()); |
| assertEquals(kvs[2], results.get(0)); |
| |
| assertEquals(false, scan.next(results)); |
| } |
| |
| public void testDeleteVersionMaskingMultiplePuts() throws IOException { |
| long now = System.currentTimeMillis(); |
| KeyValue [] kvs1 = new KeyValue[] { |
| KeyValueTestUtil.create("R1", "cf", "a", now, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "a", now, KeyValue.Type.Delete, "dont-care") |
| }; |
| KeyValue [] kvs2 = new KeyValue[] { |
| KeyValueTestUtil.create("R1", "cf", "a", now-500, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "a", now-100, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "a", now, KeyValue.Type.Put, "dont-care") |
| }; |
| List<KeyValueScanner> scanners = scanFixture(kvs1, kvs2); |
| |
| StoreScanner scan = |
| new StoreScanner(new Scan(Bytes.toBytes("R1")), CF, Long.MAX_VALUE, KeyValue.COMPARATOR, |
| getCols("a"), scanners); |
| List<KeyValue> results = new ArrayList<KeyValue>(); |
| // the two put at ts=now will be masked by the 1 delete, and |
| // since the scan default returns 1 version we'll return the newest |
| // key, which is kvs[2], now-100. |
| assertEquals(true, scan.next(results)); |
| assertEquals(1, results.size()); |
| assertEquals(kvs2[1], results.get(0)); |
| } |
| public void testDeleteVersionsMixedAndMultipleVersionReturn() throws IOException { |
| long now = System.currentTimeMillis(); |
| KeyValue [] kvs1 = new KeyValue[] { |
| KeyValueTestUtil.create("R1", "cf", "a", now, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "a", now, KeyValue.Type.Delete, "dont-care") |
| }; |
| KeyValue [] kvs2 = new KeyValue[] { |
| KeyValueTestUtil.create("R1", "cf", "a", now-500, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "a", now+500, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "a", now, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R2", "cf", "z", now, KeyValue.Type.Put, "dont-care") |
| }; |
| List<KeyValueScanner> scanners = scanFixture(kvs1, kvs2); |
| |
| Scan scanSpec = new Scan(Bytes.toBytes("R1")).setMaxVersions(2); |
| StoreScanner scan = |
| new StoreScanner(scanSpec, CF, Long.MAX_VALUE, KeyValue.COMPARATOR, |
| getCols("a"), scanners); |
| List<KeyValue> results = new ArrayList<KeyValue>(); |
| assertEquals(true, scan.next(results)); |
| assertEquals(2, results.size()); |
| assertEquals(kvs2[1], results.get(0)); |
| assertEquals(kvs2[0], results.get(1)); |
| } |
| |
| public void testWildCardOneVersionScan() throws IOException { |
| KeyValue [] kvs = new KeyValue [] { |
| KeyValueTestUtil.create("R1", "cf", "a", 2, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "b", 1, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "a", 1, KeyValue.Type.DeleteColumn, "dont-care"), |
| }; |
| List<KeyValueScanner> scanners = scanFixture(kvs); |
| StoreScanner scan = |
| new StoreScanner(new Scan(Bytes.toBytes("R1")), CF, Long.MAX_VALUE, KeyValue.COMPARATOR, |
| null, scanners); |
| List<KeyValue> results = new ArrayList<KeyValue>(); |
| assertEquals(true, scan.next(results)); |
| assertEquals(2, results.size()); |
| assertEquals(kvs[0], results.get(0)); |
| assertEquals(kvs[1], results.get(1)); |
| } |
| |
| public void testWildCardScannerUnderDeletes() throws IOException { |
| KeyValue [] kvs = new KeyValue [] { |
| KeyValueTestUtil.create("R1", "cf", "a", 2, KeyValue.Type.Put, "dont-care"), // inc |
| // orphaned delete column. |
| KeyValueTestUtil.create("R1", "cf", "a", 1, KeyValue.Type.DeleteColumn, "dont-care"), |
| // column b |
| KeyValueTestUtil.create("R1", "cf", "b", 2, KeyValue.Type.Put, "dont-care"), // inc |
| KeyValueTestUtil.create("R1", "cf", "b", 1, KeyValue.Type.Put, "dont-care"), // inc |
| // column c |
| KeyValueTestUtil.create("R1", "cf", "c", 10, KeyValue.Type.Delete, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "c", 10, KeyValue.Type.Put, "dont-care"), // no |
| KeyValueTestUtil.create("R1", "cf", "c", 9, KeyValue.Type.Put, "dont-care"), // inc |
| // column d |
| KeyValueTestUtil.create("R1", "cf", "d", 11, KeyValue.Type.Put, "dont-care"), // inc |
| KeyValueTestUtil.create("R1", "cf", "d", 10, KeyValue.Type.DeleteColumn, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "d", 9, KeyValue.Type.Put, "dont-care"), // no |
| KeyValueTestUtil.create("R1", "cf", "d", 8, KeyValue.Type.Put, "dont-care"), // no |
| |
| }; |
| List<KeyValueScanner> scanners = scanFixture(kvs); |
| StoreScanner scan = |
| new StoreScanner(new Scan().setMaxVersions(2), CF, Long.MAX_VALUE, KeyValue.COMPARATOR, |
| null, scanners); |
| List<KeyValue> results = new ArrayList<KeyValue>(); |
| assertEquals(true, scan.next(results)); |
| assertEquals(5, results.size()); |
| assertEquals(kvs[0], results.get(0)); |
| assertEquals(kvs[2], results.get(1)); |
| assertEquals(kvs[3], results.get(2)); |
| assertEquals(kvs[6], results.get(3)); |
| assertEquals(kvs[7], results.get(4)); |
| } |
| |
| public void testDeleteFamily() throws IOException { |
| KeyValue [] kvs = new KeyValue[] { |
| KeyValueTestUtil.create("R1", "cf", "a", 100, KeyValue.Type.DeleteFamily, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "b", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "c", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "d", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "e", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "e", 11, KeyValue.Type.DeleteColumn, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "f", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "g", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "g", 11, KeyValue.Type.Delete, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "h", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "i", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R2", "cf", "a", 11, KeyValue.Type.Put, "dont-care"), |
| }; |
| List<KeyValueScanner> scanners = scanFixture(kvs); |
| StoreScanner scan = |
| new StoreScanner(new Scan().setMaxVersions(Integer.MAX_VALUE), CF, Long.MAX_VALUE, KeyValue.COMPARATOR, |
| null, scanners); |
| List<KeyValue> results = new ArrayList<KeyValue>(); |
| assertEquals(true, scan.next(results)); |
| assertEquals(0, results.size()); |
| assertEquals(true, scan.next(results)); |
| assertEquals(1, results.size()); |
| assertEquals(kvs[kvs.length-1], results.get(0)); |
| |
| assertEquals(false, scan.next(results)); |
| } |
| |
| public void testDeleteColumn() throws IOException { |
| KeyValue [] kvs = new KeyValue[] { |
| KeyValueTestUtil.create("R1", "cf", "a", 10, KeyValue.Type.DeleteColumn, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "a", 9, KeyValue.Type.Delete, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "a", 8, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "b", 5, KeyValue.Type.Put, "dont-care") |
| }; |
| List<KeyValueScanner> scanners = scanFixture(kvs); |
| StoreScanner scan = |
| new StoreScanner(new Scan(), CF, Long.MAX_VALUE, KeyValue.COMPARATOR, |
| null, scanners); |
| List<KeyValue> results = new ArrayList<KeyValue>(); |
| assertEquals(true, scan.next(results)); |
| assertEquals(1, results.size()); |
| assertEquals(kvs[3], results.get(0)); |
| } |
| |
| private static final KeyValue [] kvs = new KeyValue[] { |
| KeyValueTestUtil.create("R1", "cf", "a", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "b", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "c", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "d", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "e", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "f", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "g", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "h", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "i", 11, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R2", "cf", "a", 11, KeyValue.Type.Put, "dont-care"), |
| }; |
| |
| public void testSkipColumn() throws IOException { |
| List<KeyValueScanner> scanners = scanFixture(kvs); |
| StoreScanner scan = |
| new StoreScanner(new Scan(), CF, Long.MAX_VALUE, KeyValue.COMPARATOR, |
| getCols("a", "d"), scanners); |
| |
| List<KeyValue> results = new ArrayList<KeyValue>(); |
| assertEquals(true, scan.next(results)); |
| assertEquals(2, results.size()); |
| assertEquals(kvs[0], results.get(0)); |
| assertEquals(kvs[3], results.get(1)); |
| results.clear(); |
| |
| assertEquals(true, scan.next(results)); |
| assertEquals(1, results.size()); |
| assertEquals(kvs[kvs.length-1], results.get(0)); |
| |
| results.clear(); |
| assertEquals(false, scan.next(results)); |
| } |
| |
| /* |
| * Test expiration of KeyValues in combination with a configured TTL for |
| * a column family (as should be triggered in a major compaction). |
| */ |
| public void testWildCardTtlScan() throws IOException { |
| long now = System.currentTimeMillis(); |
| KeyValue [] kvs = new KeyValue[] { |
| KeyValueTestUtil.create("R1", "cf", "a", now-1000, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "b", now-10, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "c", now-200, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "d", now-10000, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R2", "cf", "a", now, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R2", "cf", "b", now-10, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R2", "cf", "c", now-200, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R2", "cf", "c", now-1000, KeyValue.Type.Put, "dont-care") |
| }; |
| List<KeyValueScanner> scanners = scanFixture(kvs); |
| Scan scan = new Scan(); |
| scan.setMaxVersions(1); |
| StoreScanner scanner = |
| new StoreScanner(scan, CF, 500, KeyValue.COMPARATOR, |
| null, scanners); |
| |
| List<KeyValue> results = new ArrayList<KeyValue>(); |
| assertEquals(true, scanner.next(results)); |
| assertEquals(2, results.size()); |
| assertEquals(kvs[1], results.get(0)); |
| assertEquals(kvs[2], results.get(1)); |
| results.clear(); |
| |
| assertEquals(true, scanner.next(results)); |
| assertEquals(3, results.size()); |
| assertEquals(kvs[4], results.get(0)); |
| assertEquals(kvs[5], results.get(1)); |
| assertEquals(kvs[6], results.get(2)); |
| results.clear(); |
| |
| assertEquals(false, scanner.next(results)); |
| } |
| |
| public void testScannerReseekDoesntNPE() throws Exception { |
| List<KeyValueScanner> scanners = scanFixture(kvs); |
| StoreScanner scan = |
| new StoreScanner(new Scan(), CF, Long.MAX_VALUE, KeyValue.COMPARATOR, |
| getCols("a", "d"), scanners); |
| |
| |
| // Previously a updateReaders twice in a row would cause an NPE. In test this would also |
| // normally cause an NPE because scan.store is null. So as long as we get through these |
| // two calls we are good and the bug was quashed. |
| |
| scan.updateReaders(); |
| |
| scan.updateReaders(); |
| |
| scan.peek(); |
| } |
| |
| |
| /** |
| * TODO this fails, since we don't handle deletions, etc, in peek |
| */ |
| public void SKIP_testPeek() throws Exception { |
| KeyValue [] kvs = new KeyValue [] { |
| KeyValueTestUtil.create("R1", "cf", "a", 1, KeyValue.Type.Put, "dont-care"), |
| KeyValueTestUtil.create("R1", "cf", "a", 1, KeyValue.Type.Delete, "dont-care"), |
| }; |
| List<KeyValueScanner> scanners = scanFixture(kvs); |
| Scan scanSpec = new Scan(Bytes.toBytes("R1")); |
| StoreScanner scan = |
| new StoreScanner(scanSpec, CF, Long.MAX_VALUE, KeyValue.COMPARATOR, |
| getCols("a"), scanners); |
| assertNull(scan.peek()); |
| } |
| } |