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Original file line number Diff line number Diff line change
@@ -0,0 +1,174 @@
/*
* 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.iotdb.db.queryengine.plan.analyze.load;

import org.apache.tsfile.enums.TSDataType;
import org.apache.tsfile.file.metadata.IDeviceID;
import org.apache.tsfile.file.metadata.TimeseriesMetadata;
import org.apache.tsfile.read.TsFileSequenceReader;
import org.apache.tsfile.read.TsFileSequenceReaderTimeseriesMetadataIterator;
import org.apache.tsfile.read.common.Path;
import org.apache.tsfile.write.TsFileWriter;
import org.apache.tsfile.write.record.Tablet;
import org.apache.tsfile.write.schema.MeasurementSchema;
import org.junit.Assert;
import org.junit.Test;

import java.io.File;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

public class TimeseriesMetadataIteratorTest {

private static final int DEVICE_COUNT = 1000;

private static final int COLUMN_COUNT = 3;

private static final long FIXED_TIMESTAMP = 1L;

@Test
public void testTimeseriesMetadataIterator() throws Exception {
String outputPath = "testTsFile.tsfile";
File file = createTsFile(outputPath);

IDeviceID iDeviceID = null;
Set<IDeviceID> set = new HashSet<>();
try (TsFileSequenceReader reader = new TsFileSequenceReader(file.getAbsolutePath())) {
TsFileSequenceReaderTimeseriesMetadataIterator iterator =
new TsFileSequenceReaderTimeseriesMetadataIterator(reader, true, 2);
while (iterator.hasNext()) {
Map<IDeviceID, List<TimeseriesMetadata>> map = iterator.next();
for (Map.Entry<IDeviceID, List<TimeseriesMetadata>> entry : map.entrySet()) {
if (iDeviceID != null) {
if (!iDeviceID.equals(entry.getKey())) {
if (set.contains(iDeviceID)) {
Assert.fail("time series metadata iterator needs to be ordered by device id");
}
set.add(iDeviceID);
}
}
iDeviceID = entry.getKey();
}
}
} finally {
if (file.exists()) {
file.delete();
}
}
}

public static File createTsFile(String outputPath) throws Exception {
File file = new File(outputPath);
if (file.exists()) {
file.delete();
}

try (TsFileWriter tsFileWriter = new TsFileWriter(file)) {
createSchema(tsFileWriter);
for (int deviceIndex = 0; deviceIndex < DEVICE_COUNT; deviceIndex++) {
String deviceId = "root.d." + "device" + deviceIndex;
Tablet tablet = createTablet(deviceId);

tsFileWriter.writeAligned(tablet);
tsFileWriter.flushAllChunkGroups();
}
}

return file;
}

private static void createSchema(TsFileWriter tsFileWriter) throws Exception {
List<MeasurementSchema> schemaList = new ArrayList<>();
for (int colIndex = 0; colIndex < COLUMN_COUNT; colIndex++) {
String measurementName = "s" + colIndex;
TSDataType dataType = getDataType(colIndex);
schemaList.add(new MeasurementSchema(measurementName, dataType));
}
for (int deviceIndex = 0; deviceIndex < DEVICE_COUNT; deviceIndex++) {
tsFileWriter.registerAlignedTimeseries(
new Path("root.d." + "device" + deviceIndex), schemaList);
}
}

private static TSDataType getDataType(int colIndex) {
TSDataType[] types = {
TSDataType.INT32,
TSDataType.INT64,
TSDataType.FLOAT,
TSDataType.DOUBLE,
TSDataType.BOOLEAN,
TSDataType.TEXT
};
return types[colIndex % types.length];
}

private static Tablet createTablet(String deviceId) {
List<MeasurementSchema> schemaList = new ArrayList<>();

for (int colIndex = 0; colIndex < COLUMN_COUNT; colIndex++) {
String measurementName = "s" + colIndex;
TSDataType dataType = getDataType(colIndex);

schemaList.add(new MeasurementSchema(measurementName, dataType));
}

Tablet tablet = new Tablet(deviceId, schemaList, 1);

tablet.initBitMaps();

tablet.addTimestamp(0, FIXED_TIMESTAMP);

for (int colIndex = 0; colIndex < COLUMN_COUNT; colIndex++) {
String measurementName = "s" + colIndex;
TSDataType dataType = getDataType(colIndex);

Object value = generateValue(dataType, colIndex);
tablet.addValue(measurementName, 0, value);
}

tablet.rowSize = 1;

return tablet;
}

private static Object generateValue(TSDataType dataType, int colIndex) {
switch (dataType) {
case INT32:
return colIndex % 1000;
case INT64:
return (long) (colIndex * 1000);
case FLOAT:
return (float) (colIndex * 0.1);
case DOUBLE:
return (double) (colIndex * 0.01);
case BOOLEAN:
return colIndex % 2 == 0;
case TEXT:
return new org.apache.tsfile.utils.Binary(
("value_" + colIndex).getBytes(StandardCharsets.UTF_8));
default:
return colIndex;
}
}
}
2 changes: 1 addition & 1 deletion pom.xml
Original file line number Diff line number Diff line change
Expand Up @@ -175,7 +175,7 @@
<thrift.version>0.14.1</thrift.version>
<xz.version>1.9</xz.version>
<zstd-jni.version>1.5.6-3</zstd-jni.version>
<tsfile.version>1.1.2-250814-SNAPSHOT</tsfile.version>
<tsfile.version>1.1.3-250928-SNAPSHOT</tsfile.version>
</properties>
<!--
if we claim dependencies in dependencyManagement, then we do not claim
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