| /* |
| * 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.read.query.timegenerator; |
| |
| 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.Path; |
| import org.apache.iotdb.tsfile.read.expression.IExpression; |
| import org.apache.iotdb.tsfile.read.expression.QueryExpression; |
| import org.apache.iotdb.tsfile.read.expression.impl.BinaryExpression; |
| import org.apache.iotdb.tsfile.read.expression.impl.GlobalTimeExpression; |
| import org.apache.iotdb.tsfile.read.expression.impl.SingleSeriesExpression; |
| import org.apache.iotdb.tsfile.read.filter.basic.Filter; |
| import org.apache.iotdb.tsfile.read.filter.factory.FilterFactory; |
| import org.apache.iotdb.tsfile.read.filter.factory.TimeFilterApi; |
| import org.apache.iotdb.tsfile.read.filter.factory.ValueFilterApi; |
| import org.apache.iotdb.tsfile.read.query.dataset.QueryDataSet; |
| import org.apache.iotdb.tsfile.utils.TsFileGeneratorForTest; |
| import org.apache.iotdb.tsfile.write.TsFileWriter; |
| 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.FloatDataPoint; |
| import org.apache.iotdb.tsfile.write.record.datapoint.IntDataPoint; |
| import org.apache.iotdb.tsfile.write.schema.MeasurementSchema; |
| import org.apache.iotdb.tsfile.write.schema.Schema; |
| |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| public class TimeGeneratorReadWriteTest { |
| |
| private final String TEMPLATE_NAME = "template"; |
| private final String tsfilePath = TsFileGeneratorForTest.getTestTsFilePath("root.sg1", 0, 0, 1); |
| |
| @Before |
| public void before() throws IOException, WriteProcessException { |
| writeTsFile(tsfilePath); |
| } |
| |
| @After |
| public void after() { |
| File file = new File(tsfilePath); |
| if (file.exists()) { |
| file.delete(); |
| } |
| } |
| |
| @Test |
| public void testFilterAnd() throws IOException { |
| Filter timeFilter = FilterFactory.and(TimeFilterApi.gtEq(1L), TimeFilterApi.ltEq(8L)); |
| IExpression timeExpression = new GlobalTimeExpression(timeFilter); |
| |
| IExpression valueExpression = |
| BinaryExpression.and( |
| new SingleSeriesExpression(new Path("d1", "s1", true), ValueFilterApi.gt(1.0f)), |
| new SingleSeriesExpression(new Path("d1", "s2", true), ValueFilterApi.lt(22))); |
| |
| IExpression finalExpression = BinaryExpression.and(valueExpression, timeExpression); |
| |
| QueryExpression queryExpression = |
| QueryExpression.create() |
| .addSelectedPath(new Path("d1", "s1", true)) |
| .addSelectedPath(new Path("d1", "s2", true)) |
| .setExpression(finalExpression); |
| |
| try (TsFileSequenceReader fileReader = new TsFileSequenceReader(tsfilePath)) { |
| TsFileReader tsFileReader = new TsFileReader(fileReader); |
| QueryDataSet dataSet = tsFileReader.query(queryExpression); |
| int i = 0; |
| String[] expected = new String[] {"2\t1.2\t20", "3\t1.2\t20", "4\t1.2\t20", "5\t1.2\t20"}; |
| while (dataSet.hasNext()) { |
| Assert.assertEquals(expected[i], dataSet.next().toString()); |
| i++; |
| } |
| Assert.assertEquals(4, i); |
| } |
| } |
| |
| /** s1 -> 1, 2, 3, 4, 5 s2 -> 2, 3, 4, 5, 6 */ |
| private void writeTsFile(String tsfilePath) throws IOException, WriteProcessException { |
| File f = new File(tsfilePath); |
| if (f.exists()) { |
| f.delete(); |
| } |
| if (!f.getParentFile().exists()) { |
| Assert.assertTrue(f.getParentFile().mkdirs()); |
| } |
| |
| Schema schema = new Schema(); |
| schema.extendTemplate( |
| TEMPLATE_NAME, new MeasurementSchema("s1", TSDataType.FLOAT, TSEncoding.RLE)); |
| schema.extendTemplate( |
| TEMPLATE_NAME, new MeasurementSchema("s2", TSDataType.INT32, TSEncoding.TS_2DIFF)); |
| |
| TsFileWriter tsFileWriter = new TsFileWriter(new File(tsfilePath), schema); |
| |
| // s1 -> 1, 2, 3 |
| TSRecord tsRecord = new TSRecord(1, "d1"); |
| DataPoint dPoint1 = new FloatDataPoint("s1", 1.2f); |
| tsRecord.addTuple(dPoint1); |
| tsFileWriter.write(tsRecord); |
| |
| tsRecord = new TSRecord(2, "d1"); |
| dPoint1 = new FloatDataPoint("s1", 1.2f); |
| tsRecord.addTuple(dPoint1); |
| tsFileWriter.write(tsRecord); |
| |
| tsRecord = new TSRecord(3, "d1"); |
| dPoint1 = new FloatDataPoint("s1", 1.2f); |
| tsRecord.addTuple(dPoint1); |
| tsFileWriter.write(tsRecord); |
| |
| tsFileWriter.flushAllChunkGroups(); |
| |
| // s2 -> 2, 3, 4 |
| tsRecord = new TSRecord(2, "d1"); |
| DataPoint dPoint2 = new IntDataPoint("s2", 20); |
| tsRecord.addTuple(dPoint2); |
| tsFileWriter.write(tsRecord); |
| |
| tsRecord = new TSRecord(3, "d1"); |
| dPoint2 = new IntDataPoint("s2", 20); |
| tsRecord.addTuple(dPoint2); |
| tsFileWriter.write(tsRecord); |
| |
| tsRecord = new TSRecord(4, "d1"); |
| dPoint2 = new IntDataPoint("s2", 20); |
| tsRecord.addTuple(dPoint2); |
| tsFileWriter.write(tsRecord); |
| |
| tsFileWriter.flushAllChunkGroups(); |
| |
| // s1 -> 4, 5 |
| tsRecord = new TSRecord(4, "d1"); |
| dPoint1 = new FloatDataPoint("s1", 1.2f); |
| tsRecord.addTuple(dPoint1); |
| tsFileWriter.write(tsRecord); |
| |
| tsRecord = new TSRecord(5, "d1"); |
| dPoint1 = new FloatDataPoint("s1", 1.2f); |
| tsRecord.addTuple(dPoint1); |
| tsFileWriter.write(tsRecord); |
| |
| tsFileWriter.flushAllChunkGroups(); |
| |
| // s2 -> 5, 6 |
| tsRecord = new TSRecord(5, "d1"); |
| dPoint2 = new IntDataPoint("s2", 20); |
| tsRecord.addTuple(dPoint2); |
| tsFileWriter.write(tsRecord); |
| |
| tsRecord = new TSRecord(6, "d1"); |
| dPoint2 = new IntDataPoint("s2", 20); |
| tsRecord.addTuple(dPoint2); |
| tsFileWriter.write(tsRecord); |
| |
| // close TsFile |
| tsFileWriter.close(); |
| } |
| } |