001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.codec;
019
020import static org.junit.jupiter.api.Assertions.assertEquals;
021import static org.junit.jupiter.api.Assertions.assertFalse;
022import static org.junit.jupiter.api.Assertions.assertTrue;
023
024import java.io.ByteArrayInputStream;
025import java.io.ByteArrayOutputStream;
026import java.io.DataInputStream;
027import java.io.DataOutputStream;
028import java.io.IOException;
029import org.apache.hadoop.hbase.ExtendedCell;
030import org.apache.hadoop.hbase.KeyValue;
031import org.apache.hadoop.hbase.PrivateCellUtil;
032import org.apache.hadoop.hbase.testclassification.MiscTests;
033import org.apache.hadoop.hbase.testclassification.SmallTests;
034import org.apache.hadoop.hbase.util.Bytes;
035import org.junit.jupiter.api.Tag;
036import org.junit.jupiter.api.Test;
037
038import org.apache.hbase.thirdparty.com.google.common.io.CountingInputStream;
039import org.apache.hbase.thirdparty.com.google.common.io.CountingOutputStream;
040
041@Tag(MiscTests.TAG)
042@Tag(SmallTests.TAG)
043public class TestCellCodec {
044
045  @Test
046  public void testEmptyWorks() throws IOException {
047    ByteArrayOutputStream baos = new ByteArrayOutputStream();
048    CountingOutputStream cos = new CountingOutputStream(baos);
049    DataOutputStream dos = new DataOutputStream(cos);
050    Codec codec = new CellCodec();
051    Codec.Encoder encoder = codec.getEncoder(dos);
052    encoder.flush();
053    dos.close();
054    long offset = cos.getCount();
055    assertEquals(0, offset);
056    CountingInputStream cis = new CountingInputStream(new ByteArrayInputStream(baos.toByteArray()));
057    DataInputStream dis = new DataInputStream(cis);
058    Codec.Decoder decoder = codec.getDecoder(dis);
059    assertFalse(decoder.advance());
060    dis.close();
061    assertEquals(0, cis.getCount());
062  }
063
064  @Test
065  public void testOne() throws IOException {
066    ByteArrayOutputStream baos = new ByteArrayOutputStream();
067    CountingOutputStream cos = new CountingOutputStream(baos);
068    DataOutputStream dos = new DataOutputStream(cos);
069    Codec codec = new CellCodec();
070    Codec.Encoder encoder = codec.getEncoder(dos);
071    final KeyValue kv =
072      new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("q"), Bytes.toBytes("v"));
073    kv.setSequenceId(Long.MAX_VALUE);
074    encoder.write(kv);
075    encoder.flush();
076    dos.close();
077    long offset = cos.getCount();
078    CountingInputStream cis = new CountingInputStream(new ByteArrayInputStream(baos.toByteArray()));
079    DataInputStream dis = new DataInputStream(cis);
080    Codec.Decoder decoder = codec.getDecoder(dis);
081    assertTrue(decoder.advance()); // First read should pull in the KV
082    // Second read should trip over the end-of-stream marker and return false
083    assertFalse(decoder.advance());
084    dis.close();
085    assertEquals(offset, cis.getCount());
086  }
087
088  @Test
089  public void testThree() throws IOException {
090    ByteArrayOutputStream baos = new ByteArrayOutputStream();
091    CountingOutputStream cos = new CountingOutputStream(baos);
092    DataOutputStream dos = new DataOutputStream(cos);
093    Codec codec = new CellCodec();
094    Codec.Encoder encoder = codec.getEncoder(dos);
095    final KeyValue kv1 =
096      new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("1"), Bytes.toBytes("1"));
097    final KeyValue kv2 =
098      new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("2"), Bytes.toBytes("2"));
099    final KeyValue kv3 =
100      new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("3"), Bytes.toBytes("3"));
101    encoder.write(kv1);
102    encoder.write(kv2);
103    encoder.write(kv3);
104    encoder.flush();
105    dos.close();
106    long offset = cos.getCount();
107    CountingInputStream cis = new CountingInputStream(new ByteArrayInputStream(baos.toByteArray()));
108    DataInputStream dis = new DataInputStream(cis);
109    Codec.Decoder decoder = codec.getDecoder(dis);
110    assertTrue(decoder.advance());
111    ExtendedCell c = decoder.current();
112    assertTrue(PrivateCellUtil.equals(c, kv1));
113    assertTrue(decoder.advance());
114    c = decoder.current();
115    assertTrue(PrivateCellUtil.equals(c, kv2));
116    assertTrue(decoder.advance());
117    c = decoder.current();
118    assertTrue(PrivateCellUtil.equals(c, kv3));
119    assertFalse(decoder.advance());
120    dis.close();
121    assertEquals(offset, cis.getCount());
122  }
123}