hadoop-hdds/container-service/src/test/java/org/apache/hadoop/ozone/container/keyvalue/TestBlockManagerImpl.java

/*
 * 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.ozone.container.keyvalue;

import org.apache.hadoop.conf.StorageUnit;
import org.apache.hadoop.hdds.client.BlockID;
import org.apache.hadoop.hdds.conf.OzoneConfiguration;
import org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos;
import org.apache.hadoop.hdds.scm.container.common.helpers.StorageContainerException;
import org.apache.hadoop.ozone.container.common.helpers.BlockData;
import org.apache.hadoop.ozone.container.common.helpers.ChunkInfo;
import org.apache.hadoop.ozone.container.common.volume.HddsVolume;
import org.apache.hadoop.ozone.container.common.volume.RoundRobinVolumeChoosingPolicy;
import org.apache.hadoop.ozone.container.common.volume.VolumeSet;
import org.apache.hadoop.ozone.container.keyvalue.impl.BlockManagerImpl;
import org.apache.hadoop.test.GenericTestUtils;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import org.mockito.Mockito;

import java.util.ArrayList;
import java.util.List;
import java.util.UUID;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import static org.mockito.ArgumentMatchers.anyList;
import static org.mockito.ArgumentMatchers.anyLong;
import static org.mockito.Mockito.mock;

/**
 * This class is used to test key related operations on the container.
 */
public class TestBlockManagerImpl {

  @Rule
  public TemporaryFolder folder = new TemporaryFolder();
  private OzoneConfiguration config;
  private String scmId = UUID.randomUUID().toString();
  private VolumeSet volumeSet;
  private RoundRobinVolumeChoosingPolicy volumeChoosingPolicy;
  private KeyValueContainerData keyValueContainerData;
  private KeyValueContainer keyValueContainer;
  private BlockData blockData;
  private BlockManagerImpl blockManager;
  private BlockID blockID;

  @Before
  public void setUp() throws Exception {
    config = new OzoneConfiguration();
    UUID datanodeId = UUID.randomUUID();
    HddsVolume hddsVolume = new HddsVolume.Builder(folder.getRoot()
        .getAbsolutePath()).conf(config).datanodeUuid(datanodeId
        .toString()).build();

    volumeSet = mock(VolumeSet.class);

    volumeChoosingPolicy = mock(RoundRobinVolumeChoosingPolicy.class);
    Mockito.when(volumeChoosingPolicy.chooseVolume(anyList(), anyLong()))
        .thenReturn(hddsVolume);

    keyValueContainerData = new KeyValueContainerData(1L,
        (long) StorageUnit.GB.toBytes(5), UUID.randomUUID().toString(),
        datanodeId.toString());

    keyValueContainer = new KeyValueContainer(
        keyValueContainerData, config);

    keyValueContainer.create(volumeSet, volumeChoosingPolicy, scmId);

    // Creating BlockData
    blockID = new BlockID(1L, 1L);
    blockData = new BlockData(blockID);
    blockData.addMetadata("VOLUME", "ozone");
    blockData.addMetadata("OWNER", "hdfs");
    List<ContainerProtos.ChunkInfo> chunkList = new ArrayList<>();
    ChunkInfo info = new ChunkInfo(String.format("%d.data.%d", blockID
        .getLocalID(), 0), 0, 1024);
    chunkList.add(info.getProtoBufMessage());
    blockData.setChunks(chunkList);

    // Create KeyValueContainerManager
    blockManager = new BlockManagerImpl(config);

  }

  @Test
  public void testPutAndGetBlock() throws Exception {
    assertEquals(0, keyValueContainer.getContainerData().getKeyCount());
    //Put Block
    blockManager.putBlock(keyValueContainer, blockData);

    assertEquals(1, keyValueContainer.getContainerData().getKeyCount());
    //Get Block
    BlockData fromGetBlockData = blockManager.getBlock(keyValueContainer,
        blockData.getBlockID());

    assertEquals(blockData.getContainerID(), fromGetBlockData.getContainerID());
    assertEquals(blockData.getLocalID(), fromGetBlockData.getLocalID());
    assertEquals(blockData.getChunks().size(),
        fromGetBlockData.getChunks().size());
    assertEquals(blockData.getMetadata().size(), fromGetBlockData.getMetadata()
        .size());

  }

  @Test
  public void testDeleteBlock() throws Exception {
    assertEquals(0,
        keyValueContainer.getContainerData().getKeyCount());
    //Put Block
    blockManager.putBlock(keyValueContainer, blockData);
    assertEquals(1,
        keyValueContainer.getContainerData().getKeyCount());
    //Delete Block
    blockManager.deleteBlock(keyValueContainer, blockID);
    assertEquals(0,
        keyValueContainer.getContainerData().getKeyCount());
    try {
      blockManager.getBlock(keyValueContainer, blockID);
      fail("testDeleteBlock");
    } catch (StorageContainerException ex) {
      GenericTestUtils.assertExceptionContains(
          "Unable to find the block", ex);
    }
  }

  @Test
  public void testListBlock() throws Exception {
    blockManager.putBlock(keyValueContainer, blockData);
    List<BlockData> listBlockData = blockManager.listBlock(
        keyValueContainer, 1, 10);
    assertNotNull(listBlockData);
    assertTrue(listBlockData.size() == 1);

    for (long i = 2; i <= 10; i++) {
      blockID = new BlockID(1L, i);
      blockData = new BlockData(blockID);
      blockData.addMetadata("VOLUME", "ozone");
      blockData.addMetadata("OWNER", "hdfs");
      List<ContainerProtos.ChunkInfo> chunkList = new ArrayList<>();
      ChunkInfo info = new ChunkInfo(String.format("%d.data.%d", blockID
          .getLocalID(), 0), 0, 1024);
      chunkList.add(info.getProtoBufMessage());
      blockData.setChunks(chunkList);
      blockManager.putBlock(keyValueContainer, blockData);
    }

    listBlockData = blockManager.listBlock(
        keyValueContainer, 1, 10);
    assertNotNull(listBlockData);
    assertTrue(listBlockData.size() == 10);
  }

  @Test
  public void testGetNoSuchBlock() throws Exception {
    assertEquals(0,
        keyValueContainer.getContainerData().getKeyCount());
    //Put Block
    blockManager.putBlock(keyValueContainer, blockData);
    assertEquals(1,
        keyValueContainer.getContainerData().getKeyCount());
    //Delete Block
    blockManager.deleteBlock(keyValueContainer, blockID);
    assertEquals(0,
        keyValueContainer.getContainerData().getKeyCount());
    try {
      //Since the block has been deleted, we should not be able to find it
      blockManager.getBlock(keyValueContainer, blockID);
      fail("testGetNoSuchBlock failed");
    } catch (StorageContainerException ex) {
      GenericTestUtils.assertExceptionContains(
          "Unable to find the block", ex);
      assertEquals(ContainerProtos.Result.NO_SUCH_BLOCK, ex.getResult());
    }
  }
}