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* 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
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*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing,
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package org.apache.iotdb.db.queryengine.plan.planner.node.process;
import org.apache.iotdb.common.rpc.thrift.TAggregationType;
import org.apache.iotdb.commons.exception.IllegalPathException;
import org.apache.iotdb.commons.path.MeasurementPath;
import org.apache.iotdb.commons.path.PartialPath;
import org.apache.iotdb.db.queryengine.plan.expression.leaf.TimeSeriesOperand;
import org.apache.iotdb.db.queryengine.plan.expression.multi.FunctionExpression;
import org.apache.iotdb.db.queryengine.plan.planner.node.PlanNodeDeserializeHelper;
import org.apache.iotdb.db.queryengine.plan.planner.plan.node.PlanNodeId;
import org.apache.iotdb.db.queryengine.plan.planner.plan.node.process.GroupByTagNode;
import org.apache.iotdb.db.queryengine.plan.planner.plan.node.source.SeriesAggregationScanNode;
import org.apache.iotdb.db.queryengine.plan.planner.plan.parameter.AggregationDescriptor;
import org.apache.iotdb.db.queryengine.plan.planner.plan.parameter.AggregationStep;
import org.apache.iotdb.db.queryengine.plan.planner.plan.parameter.CrossSeriesAggregationDescriptor;
import org.apache.iotdb.db.queryengine.plan.planner.plan.parameter.GroupByTimeParameter;
import org.apache.iotdb.db.queryengine.plan.statement.component.Ordering;
import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType;
import org.apache.iotdb.tsfile.utils.TimeDuration;
import org.junit.Assert;
import org.junit.Test;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import static org.apache.iotdb.db.queryengine.plan.expression.ExpressionFactory.gt;
import static org.apache.iotdb.db.queryengine.plan.expression.ExpressionFactory.longValue;
import static org.apache.iotdb.db.queryengine.plan.expression.ExpressionFactory.time;
public class GroupByTagNodeSerdeTest {
@Test
public void testSerializeAndDeserialize() throws IllegalPathException, IOException {
GroupByTimeParameter groupByTimeParameter =
new GroupByTimeParameter(1, 100, new TimeDuration(1, 0), new TimeDuration(1, 0), true);
CrossSeriesAggregationDescriptor s1MaxTime =
new CrossSeriesAggregationDescriptor(
TAggregationType.MAX_TIME.name().toLowerCase(),
AggregationStep.FINAL,
Collections.singletonList(new TimeSeriesOperand(new PartialPath("root.sg.d1.s1"))),
1,
Collections.emptyMap(),
Collections.singletonList(
new FunctionExpression(
"max_time",
new LinkedHashMap<>(),
Collections.singletonList(
new TimeSeriesOperand(new PartialPath("root.sg.d1.s1"))))));
CrossSeriesAggregationDescriptor s1Avg =
new CrossSeriesAggregationDescriptor(
TAggregationType.AVG.name().toLowerCase(),
AggregationStep.FINAL,
Collections.singletonList(new TimeSeriesOperand(new PartialPath("root.sg.d1.s1"))),
1,
Collections.emptyMap(),
Collections.singletonList(
new FunctionExpression(
"avg",
new LinkedHashMap<>(),
Collections.singletonList(
new TimeSeriesOperand(new PartialPath("root.sg.d1.s1"))))));
AggregationDescriptor s1MaxTimePartial =
new AggregationDescriptor(
TAggregationType.MAX_TIME.name().toLowerCase(),
AggregationStep.PARTIAL,
Collections.singletonList(new TimeSeriesOperand(new PartialPath("root.sg.d1.s1"))));
AggregationDescriptor s1AvgTimePartial =
new AggregationDescriptor(
TAggregationType.AVG.name().toLowerCase(),
AggregationStep.PARTIAL,
Collections.singletonList(new TimeSeriesOperand(new PartialPath("root.sg.d1.s1"))));
Map<List<String>, List<CrossSeriesAggregationDescriptor>> tagValuesToAggregationDescriptors =
new HashMap<>();
tagValuesToAggregationDescriptors.put(
Arrays.asList("v1", "v2"), Arrays.asList(s1MaxTime, null, s1Avg));
GroupByTagNode expectedNode =
new GroupByTagNode(
new PlanNodeId("TestGroupByTagNode"),
Collections.singletonList(
new SeriesAggregationScanNode(
new PlanNodeId("TestSeriesAggregateScanNode1"),
new MeasurementPath("root.sg.d1.s1", TSDataType.INT32),
Arrays.asList(s1MaxTimePartial, s1AvgTimePartial),
Ordering.ASC,
gt(time(), longValue(100)),
groupByTimeParameter,
null)),
groupByTimeParameter,
Ordering.ASC,
Collections.singletonList("k1"),
tagValuesToAggregationDescriptors,
Arrays.asList("MAX_TIME(root.sg.d1.s1)", "AVG(root.sg.d1.s1)"));
ByteBuffer byteBuffer = ByteBuffer.allocate(4096);
expectedNode.serialize(byteBuffer);
byteBuffer.flip();
Assert.assertEquals(expectedNode, PlanNodeDeserializeHelper.deserialize(byteBuffer));
ByteArrayOutputStream baos = new ByteArrayOutputStream();
DataOutputStream dataOutputStream = new DataOutputStream(baos);
expectedNode.serialize(dataOutputStream);
byte[] byteArray = baos.toByteArray();
ByteBuffer buffer = ByteBuffer.wrap(byteArray);
Assert.assertEquals(expectedNode, PlanNodeDeserializeHelper.deserialize(buffer));
}
}