/*
* 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 gobblin.data.management.conversion.hive.watermarker;
import java.util.List;
import org.apache.hadoop.hive.ql.metadata.Partition;
import org.apache.hadoop.hive.ql.metadata.Table;
import org.mockito.Mockito;
import org.testng.Assert;
import org.testng.annotations.Test;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import gobblin.configuration.ConfigurationKeys;
import gobblin.configuration.SourceState;
import gobblin.configuration.State;
import gobblin.configuration.WorkUnitState;
import gobblin.source.extractor.extract.LongWatermark;
@Test(groups = { "gobblin.data.management.conversion" })
public class TableLevelWatermarkerTest {
@Test
public void testPreviousState() throws Exception {
WorkUnitState previousWus = new WorkUnitState();
previousWus.setProp(ConfigurationKeys.DATASET_URN_KEY, "test_table");
previousWus.setActualHighWatermark(new LongWatermark(100l));
// Watermark will be lowest of 100l and 101l
WorkUnitState previousWus1 = new WorkUnitState();
previousWus1.setProp(ConfigurationKeys.DATASET_URN_KEY, "test_table");
previousWus1.setActualHighWatermark(new LongWatermark(101l));
SourceState state = new SourceState(new State(), Lists.newArrayList(previousWus));
TableLevelWatermarker watermarker = new TableLevelWatermarker(state);
Assert.assertEquals(watermarker.getPreviousHighWatermark(mockTable("test_table")), new LongWatermark(100l));
}
@Test
public void testPreviousStateWithPartitionWatermark() throws Exception {
WorkUnitState previousWus = new WorkUnitState();
previousWus.setProp(ConfigurationKeys.DATASET_URN_KEY, "test_table");
previousWus.setActualHighWatermark(new LongWatermark(100l));
// Watermark workunits created by PartitionLevelWatermarker need to be ignored.
WorkUnitState previousWus1 = new WorkUnitState();
previousWus1.setProp(ConfigurationKeys.DATASET_URN_KEY, "test_table");
previousWus1.setProp(PartitionLevelWatermarker.IS_WATERMARK_WORKUNIT_KEY, true);
previousWus1.setActualHighWatermark(new MultiKeyValueLongWatermark(ImmutableMap.of("part1", 200l)));
SourceState state = new SourceState(new State(), Lists.newArrayList(previousWus));
TableLevelWatermarker watermarker = new TableLevelWatermarker(state);
Assert.assertEquals(watermarker.getPreviousHighWatermark(mockTable("test_table")), new LongWatermark(100l));
}
/**
* Make sure that all partitions get the same previous high watermark (table's watermark)
*/
@Test
public void testPartitionWatermarks() throws Exception {
WorkUnitState previousWus = new WorkUnitState();
previousWus.setProp(ConfigurationKeys.DATASET_URN_KEY, "test_table");
previousWus.setActualHighWatermark(new LongWatermark(100l));
SourceState state = new SourceState(new State(), Lists.newArrayList(previousWus));
TableLevelWatermarker watermarker = new TableLevelWatermarker(state);
Table mockTable = mockTable("test_table");
Assert.assertEquals(watermarker.getPreviousHighWatermark(mockTable), new LongWatermark(100l));
Assert.assertEquals(watermarker.getPreviousHighWatermark(mockPartition(mockTable, ImmutableList.of("2015"))),
new LongWatermark(100l));
Assert.assertEquals(watermarker.getPreviousHighWatermark(mockPartition(mockTable, ImmutableList.of("2016"))),
new LongWatermark(100l));
}
private static Table mockTable(String name) {
Table table = Mockito.mock(Table.class, Mockito.RETURNS_SMART_NULLS);
Mockito.when(table.getCompleteName()).thenReturn(name);
return table;
}
private static Partition mockPartition(Table table, List<String> values) {
Partition partition = Mockito.mock(Partition.class, Mockito.RETURNS_SMART_NULLS);
Mockito.when(partition.getTable()).thenReturn(table);
Mockito.when(partition.getValues()).thenReturn(values);
return partition;
}
}