| /** |
| * 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.filter; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import org.apache.hadoop.hbase.Cell; |
| import org.apache.hadoop.hbase.CellComparator; |
| import org.apache.hadoop.hbase.CompareOperator; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.HConstants; |
| 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.Scan; |
| import org.apache.hadoop.hbase.client.TableDescriptor; |
| import org.apache.hadoop.hbase.client.TableDescriptorBuilder; |
| import org.apache.hadoop.hbase.regionserver.HRegion; |
| import org.apache.hadoop.hbase.regionserver.InternalScanner; |
| import org.apache.hadoop.hbase.testclassification.FilterTests; |
| 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.Rule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| import org.junit.rules.TestName; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Test qualifierFilter with empty qualifier column |
| */ |
| @Category({FilterTests.class, SmallTests.class}) |
| public class TestQualifierFilterWithEmptyQualifier { |
| |
| private final static Logger LOG |
| = LoggerFactory.getLogger(TestQualifierFilterWithEmptyQualifier.class); |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestQualifierFilterWithEmptyQualifier.class); |
| private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility(); |
| private HRegion region; |
| |
| @Rule |
| public TestName name = new TestName(); |
| |
| private static final byte[][] ROWS = |
| { Bytes.toBytes("testRowOne-0"), Bytes.toBytes("testRowOne-1"), |
| Bytes.toBytes("testRowOne-2"), Bytes.toBytes("testRowOne-3") }; |
| private static final byte[] FAMILY = Bytes.toBytes("testFamily"); |
| private static final byte[][] QUALIFIERS = {HConstants.EMPTY_BYTE_ARRAY, |
| Bytes.toBytes("testQualifier")}; |
| private static final byte[] VALUE = Bytes.toBytes("testValueOne"); |
| private long numRows = (long) ROWS.length; |
| |
| @Before |
| public void setUp() throws Exception { |
| TableDescriptor htd = TableDescriptorBuilder |
| .newBuilder(TableName.valueOf("TestQualifierFilter")) |
| .setColumnFamily(ColumnFamilyDescriptorBuilder.newBuilder(FAMILY).build()).build(); |
| RegionInfo info = RegionInfoBuilder.newBuilder(htd.getTableName()).build(); |
| this.region = HBaseTestingUtility |
| .createRegionAndWAL(info, TEST_UTIL.getDataTestDir(), TEST_UTIL.getConfiguration(), htd); |
| |
| // Insert data |
| for (byte[] ROW : ROWS) { |
| Put p = new Put(ROW); |
| p.setDurability(Durability.SKIP_WAL); |
| for (byte[] QUALIFIER : QUALIFIERS) { |
| p.addColumn(FAMILY, QUALIFIER, VALUE); |
| } |
| this.region.put(p); |
| } |
| |
| // Flush |
| this.region.flush(true); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| HBaseTestingUtility.closeRegionAndWAL(region); |
| } |
| |
| @Test |
| public void testQualifierFilterWithEmptyColumn() throws IOException { |
| long colsPerRow = 2; |
| long expectedKeys = colsPerRow / 2; |
| Filter f = new QualifierFilter(CompareOperator.EQUAL, |
| new BinaryComparator(QUALIFIERS[0])); |
| Scan s = new Scan(); |
| s.setFilter(f); |
| verifyScanNoEarlyOut(s, this.numRows, expectedKeys); |
| |
| expectedKeys = colsPerRow / 2; |
| f = new QualifierFilter(CompareOperator.EQUAL, |
| new BinaryComparator(QUALIFIERS[1])); |
| s = new Scan(); |
| s.setFilter(f); |
| verifyScanNoEarlyOut(s, this.numRows, expectedKeys); |
| |
| expectedKeys = colsPerRow / 2; |
| f = new QualifierFilter(CompareOperator.GREATER, |
| new BinaryComparator(QUALIFIERS[0])); |
| s = new Scan(); |
| s.setFilter(f); |
| verifyScanNoEarlyOut(s, this.numRows, expectedKeys); |
| |
| expectedKeys = colsPerRow; |
| f = new QualifierFilter(CompareOperator.GREATER_OR_EQUAL, |
| new BinaryComparator(QUALIFIERS[0])); |
| s = new Scan(); |
| s.setFilter(f); |
| verifyScanNoEarlyOut(s, this.numRows, expectedKeys); |
| } |
| |
| private void verifyScanNoEarlyOut(Scan s, long expectedRows, |
| long expectedKeys) |
| throws IOException { |
| InternalScanner scanner = this.region.getScanner(s); |
| List<Cell> results = new ArrayList<>(); |
| int i = 0; |
| for (boolean done = true; done; i++) { |
| done = scanner.next(results); |
| Arrays.sort(results.toArray(new Cell[results.size()]), |
| CellComparator.getInstance()); |
| LOG.info("counter=" + i + ", " + results); |
| if(results.isEmpty()) { |
| break; |
| } |
| assertTrue("Scanned too many rows! Only expected " + expectedRows + |
| " total but already scanned " + (i+1), expectedRows > i); |
| assertEquals("Expected " + expectedKeys + " keys per row but " + |
| "returned " + results.size(), expectedKeys, results.size()); |
| results.clear(); |
| } |
| assertEquals("Expected " + expectedRows + " rows but scanned " + i + |
| " rows", expectedRows, i); |
| } |
| } |