| /* |
| * 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.tsfile.write; |
| |
| import org.apache.iotdb.tsfile.common.conf.TSFileDescriptor; |
| import org.apache.iotdb.tsfile.exception.write.WriteProcessException; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSEncoding; |
| import org.apache.iotdb.tsfile.read.TsFileReader; |
| import org.apache.iotdb.tsfile.read.TsFileSequenceReader; |
| import org.apache.iotdb.tsfile.read.common.Field; |
| import org.apache.iotdb.tsfile.read.common.Path; |
| import org.apache.iotdb.tsfile.read.common.RowRecord; |
| import org.apache.iotdb.tsfile.read.expression.QueryExpression; |
| import org.apache.iotdb.tsfile.read.query.dataset.QueryDataSet; |
| import org.apache.iotdb.tsfile.utils.TsFileGeneratorForTest; |
| import org.apache.iotdb.tsfile.write.record.TSRecord; |
| import org.apache.iotdb.tsfile.write.record.datapoint.DataPoint; |
| import org.apache.iotdb.tsfile.write.record.datapoint.DoubleDataPoint; |
| import org.apache.iotdb.tsfile.write.record.datapoint.FloatDataPoint; |
| import org.apache.iotdb.tsfile.write.record.datapoint.IntDataPoint; |
| import org.apache.iotdb.tsfile.write.record.datapoint.LongDataPoint; |
| import org.apache.iotdb.tsfile.write.schema.MeasurementSchema; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| public class TsFileReadWriteTest { |
| |
| private final double delta = 0.0000001; |
| private final String path = TsFileGeneratorForTest.getTestTsFilePath("root.sg1", 0, 0, 1); |
| private File f; |
| |
| @Before |
| public void setUp() { |
| f = new File(path); |
| if (f.exists()) { |
| assertTrue(f.delete()); |
| } |
| if (!f.getParentFile().exists()) { |
| assertTrue(f.getParentFile().mkdirs()); |
| } |
| } |
| |
| @After |
| public void tearDown() { |
| f = new File(path); |
| if (f.exists()) { |
| assertTrue(f.delete()); |
| } |
| } |
| |
| @Test |
| public void intTest() throws IOException, WriteProcessException { |
| List<TSEncoding> encodings = |
| Arrays.asList( |
| TSEncoding.PLAIN, |
| TSEncoding.RLE, |
| TSEncoding.TS_2DIFF, |
| TSEncoding.REGULAR, |
| TSEncoding.GORILLA, |
| TSEncoding.ZIGZAG); |
| for (TSEncoding encoding : encodings) { |
| intTest(encoding); |
| } |
| } |
| |
| private void intTest(TSEncoding encoding) throws IOException, WriteProcessException { |
| writeDataByTSRecord(TSDataType.INT32, (i) -> new IntDataPoint("sensor_1", (int) i), encoding); |
| readData((i, field, delta) -> assertEquals(i, field.getIntV())); |
| } |
| |
| @Test |
| public void longTest() throws IOException, WriteProcessException { |
| List<TSEncoding> encodings = |
| Arrays.asList( |
| TSEncoding.PLAIN, |
| TSEncoding.RLE, |
| TSEncoding.TS_2DIFF, |
| TSEncoding.REGULAR, |
| TSEncoding.GORILLA); |
| for (TSEncoding encoding : encodings) { |
| longTest(encoding); |
| } |
| } |
| |
| public void longTest(TSEncoding encoding) throws IOException, WriteProcessException { |
| writeDataByTSRecord(TSDataType.INT64, (i) -> new LongDataPoint("sensor_1", i), encoding); |
| readData((i, field, delta) -> assertEquals(i, field.getLongV())); |
| } |
| |
| @Test |
| public void floatTest() throws IOException, WriteProcessException { |
| List<TSEncoding> encodings = |
| Arrays.asList( |
| TSEncoding.PLAIN, |
| TSEncoding.RLE, |
| TSEncoding.TS_2DIFF, |
| TSEncoding.GORILLA_V1, |
| TSEncoding.GORILLA); |
| for (TSEncoding encoding : encodings) { |
| floatTest(encoding); |
| } |
| } |
| |
| public void floatTest(TSEncoding encoding) throws IOException, WriteProcessException { |
| writeDataByTSRecord( |
| TSDataType.FLOAT, (i) -> new FloatDataPoint("sensor_1", (float) i), encoding); |
| readData((i, field, delta) -> assertEquals(i, field.getFloatV(), delta)); |
| } |
| |
| @Test |
| public void doubleTest() throws IOException, WriteProcessException { |
| List<TSEncoding> encodings = |
| Arrays.asList( |
| TSEncoding.PLAIN, |
| TSEncoding.RLE, |
| TSEncoding.TS_2DIFF, |
| TSEncoding.GORILLA_V1, |
| TSEncoding.GORILLA); |
| for (TSEncoding encoding : encodings) { |
| doubleTest(encoding); |
| } |
| } |
| |
| public void doubleTest(TSEncoding encoding) throws IOException, WriteProcessException { |
| writeDataByTSRecord( |
| TSDataType.DOUBLE, (i) -> new DoubleDataPoint("sensor_1", (double) i), encoding); |
| readData((i, field, delta) -> assertEquals(i, field.getDoubleV(), delta)); |
| } |
| |
| // If no dataPoint in "device_1.sensor_2", it will throws a nomeasurement |
| // exception, |
| // cause no schema in tsfilemetadata anymore. |
| @Test |
| public void readEmptyMeasurementTest() throws IOException, WriteProcessException { |
| try (TsFileWriter tsFileWriter = new TsFileWriter(f)) { |
| // add measurements into file schema |
| tsFileWriter.registerTimeseries( |
| new Path("device_1"), |
| new MeasurementSchema("sensor_1", TSDataType.FLOAT, TSEncoding.RLE)); |
| tsFileWriter.registerTimeseries( |
| new Path("device_1"), |
| new MeasurementSchema("sensor_2", TSDataType.INT32, TSEncoding.TS_2DIFF)); |
| // construct TSRecord |
| TSRecord tsRecord = new TSRecord(1, "device_1"); |
| DataPoint dPoint1 = new FloatDataPoint("sensor_1", 1.2f); |
| tsRecord.addTuple(dPoint1); |
| // write a TSRecord to TsFile |
| tsFileWriter.write(tsRecord); |
| } |
| |
| // read example : no filter |
| TsFileSequenceReader reader = new TsFileSequenceReader(path); |
| TsFileReader readTsFile = new TsFileReader(reader); |
| ArrayList<Path> paths = new ArrayList<>(); |
| paths.add(new Path("device_1", "sensor_2", true)); |
| QueryExpression queryExpression = QueryExpression.create(paths, null); |
| try { |
| QueryDataSet queryDataSet = readTsFile.query(queryExpression); |
| } catch (IOException e) { |
| // Assert.fail(); |
| } finally { |
| reader.close(); |
| } |
| |
| assertTrue(f.delete()); |
| } |
| |
| @Test |
| public void readMeasurementWithRegularEncodingTest() throws IOException, WriteProcessException { |
| TSFileDescriptor.getInstance().getConfig().setTimeEncoder("REGULAR"); |
| writeDataByTSRecord( |
| TSDataType.INT64, (i) -> new LongDataPoint("sensor_1", i), TSEncoding.REGULAR); |
| readData((i, field, delta) -> assertEquals(i, field.getLongV())); |
| TSFileDescriptor.getInstance().getConfig().setTimeEncoder("TS_2DIFF"); |
| } |
| |
| private void writeDataByTSRecord( |
| TSDataType dataType, DataPointProxy proxy, TSEncoding encodingType) |
| throws IOException, WriteProcessException { |
| int floatCount = 1024 * 1024 * 13 + 1023; |
| // add measurements into file schema |
| try (TsFileWriter tsFileWriter = new TsFileWriter(f)) { |
| tsFileWriter.registerTimeseries( |
| new Path("device_1"), new MeasurementSchema("sensor_1", dataType, encodingType)); |
| for (long i = 1; i < floatCount; i++) { |
| // construct TSRecord |
| TSRecord tsRecord = new TSRecord(i, "device_1"); |
| DataPoint dPoint1 = proxy.generateOne(i); |
| tsRecord.addTuple(dPoint1); |
| // write a TSRecord to TsFile |
| tsFileWriter.write(tsRecord); |
| } |
| } |
| } |
| |
| private void readData(ReadDataPointProxy proxy) throws IOException { |
| TsFileSequenceReader reader = new TsFileSequenceReader(path); |
| TsFileReader readTsFile = new TsFileReader(reader); |
| ArrayList<Path> paths = new ArrayList<>(); |
| paths.add(new Path("device_1", "sensor_1", true)); |
| QueryExpression queryExpression = QueryExpression.create(paths, null); |
| |
| QueryDataSet queryDataSet = readTsFile.query(queryExpression); |
| for (int j = 0; j < paths.size(); j++) { |
| assertEquals(paths.get(j), queryDataSet.getPaths().get(j)); |
| } |
| int i = 1; |
| while (queryDataSet.hasNext()) { |
| RowRecord r = queryDataSet.next(); |
| assertEquals(i, r.getTimestamp()); |
| proxy.assertEqualProxy(i, r.getFields().get(0), delta); |
| i++; |
| } |
| reader.close(); |
| } |
| |
| private interface DataPointProxy { |
| |
| DataPoint generateOne(long value); |
| } |
| |
| private interface ReadDataPointProxy { |
| |
| void assertEqualProxy(long i, Field field, double delta); |
| } |
| } |