| /** |
| * 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.io.hfile; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.apache.hadoop.fs.FSDataOutputStream; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hbase.ArrayBackedTag; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.HConstants; |
| import org.apache.hadoop.hbase.KeyValue; |
| import org.apache.hadoop.hbase.Tag; |
| import org.apache.hadoop.hbase.testclassification.IOTests; |
| import org.apache.hadoop.hbase.testclassification.SmallTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| /** |
| * Test {@link HFileScanner#reseekTo(org.apache.hadoop.hbase.Cell)} |
| */ |
| @Category({IOTests.class, SmallTests.class}) |
| public class TestReseekTo { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestReseekTo.class); |
| |
| private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility(); |
| |
| @Test |
| public void testReseekTo() throws Exception { |
| testReseekToInternals(TagUsage.NO_TAG); |
| testReseekToInternals(TagUsage.ONLY_TAG); |
| testReseekToInternals(TagUsage.PARTIAL_TAG); |
| } |
| |
| private void testReseekToInternals(TagUsage tagUsage) throws IOException { |
| Path ncTFile = new Path(TEST_UTIL.getDataTestDir(), "basic.hfile"); |
| FSDataOutputStream fout = TEST_UTIL.getTestFileSystem().create(ncTFile); |
| if(tagUsage != TagUsage.NO_TAG){ |
| TEST_UTIL.getConfiguration().setInt("hfile.format.version", 3); |
| } |
| CacheConfig cacheConf = new CacheConfig(TEST_UTIL.getConfiguration()); |
| HFileContext context = new HFileContextBuilder().withBlockSize(4000).build(); |
| HFile.Writer writer = HFile.getWriterFactory( |
| TEST_UTIL.getConfiguration(), cacheConf) |
| .withOutputStream(fout) |
| .withFileContext(context) |
| .create(); |
| int numberOfKeys = 1000; |
| |
| String valueString = "Value"; |
| |
| List<Integer> keyList = new ArrayList<>(); |
| List<String> valueList = new ArrayList<>(); |
| |
| for (int key = 0; key < numberOfKeys; key++) { |
| String value = valueString + key; |
| KeyValue kv; |
| keyList.add(key); |
| valueList.add(value); |
| if(tagUsage == TagUsage.NO_TAG){ |
| kv = new KeyValue(Bytes.toBytes(key), Bytes.toBytes("family"), Bytes.toBytes("qual"), |
| Bytes.toBytes(value)); |
| writer.append(kv); |
| } else if (tagUsage == TagUsage.ONLY_TAG) { |
| Tag t = new ArrayBackedTag((byte) 1, "myTag1"); |
| Tag[] tags = new Tag[1]; |
| tags[0] = t; |
| kv = new KeyValue(Bytes.toBytes(key), Bytes.toBytes("family"), Bytes.toBytes("qual"), |
| HConstants.LATEST_TIMESTAMP, Bytes.toBytes(value), tags); |
| writer.append(kv); |
| } else { |
| if (key % 4 == 0) { |
| Tag t = new ArrayBackedTag((byte) 1, "myTag1"); |
| Tag[] tags = new Tag[1]; |
| tags[0] = t; |
| kv = new KeyValue(Bytes.toBytes(key), Bytes.toBytes("family"), Bytes.toBytes("qual"), |
| HConstants.LATEST_TIMESTAMP, Bytes.toBytes(value), tags); |
| writer.append(kv); |
| } else { |
| kv = new KeyValue(Bytes.toBytes(key), Bytes.toBytes("family"), Bytes.toBytes("qual"), |
| HConstants.LATEST_TIMESTAMP, Bytes.toBytes(value)); |
| writer.append(kv); |
| } |
| } |
| } |
| writer.close(); |
| fout.close(); |
| |
| HFile.Reader reader = HFile.createReader(TEST_UTIL.getTestFileSystem(), ncTFile, cacheConf, |
| true, TEST_UTIL.getConfiguration()); |
| HFileScanner scanner = reader.getScanner(false, true); |
| |
| scanner.seekTo(); |
| for (int i = 0; i < keyList.size(); i++) { |
| Integer key = keyList.get(i); |
| String value = valueList.get(i); |
| long start = System.nanoTime(); |
| scanner.seekTo(new KeyValue(Bytes.toBytes(key), Bytes.toBytes("family"), Bytes |
| .toBytes("qual"), Bytes.toBytes(value))); |
| assertEquals(value, scanner.getValueString()); |
| } |
| |
| scanner.seekTo(); |
| for (int i = 0; i < keyList.size(); i += 10) { |
| Integer key = keyList.get(i); |
| String value = valueList.get(i); |
| long start = System.nanoTime(); |
| scanner.reseekTo(new KeyValue(Bytes.toBytes(key), Bytes.toBytes("family"), Bytes |
| .toBytes("qual"), Bytes.toBytes(value))); |
| assertEquals("i is " + i, value, scanner.getValueString()); |
| } |
| |
| reader.close(); |
| } |
| |
| |
| } |
| |