| /* |
| * 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.writer; |
| |
| import org.apache.iotdb.tsfile.encoding.encoder.Encoder; |
| import org.apache.iotdb.tsfile.encoding.encoder.PlainEncoder; |
| import org.apache.iotdb.tsfile.file.MetaMarker; |
| import org.apache.iotdb.tsfile.file.metadata.enums.CompressionType; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSEncoding; |
| import org.apache.iotdb.tsfile.utils.PublicBAOS; |
| import org.apache.iotdb.tsfile.utils.ReadWriteForEncodingUtils; |
| import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils; |
| import org.apache.iotdb.tsfile.write.chunk.ValueChunkWriter; |
| |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.fail; |
| |
| public class ValueChunkWriterTest { |
| |
| @Test |
| public void testWrite1() { |
| Encoder valueEncoder = new PlainEncoder(TSDataType.FLOAT, 0); |
| ValueChunkWriter chunkWriter = |
| new ValueChunkWriter( |
| "s1", CompressionType.UNCOMPRESSED, TSDataType.FLOAT, TSEncoding.PLAIN, valueEncoder); |
| for (int time = 1; time <= 20; time++) { |
| chunkWriter.write(time, (float) time, time % 4 == 0); |
| } |
| chunkWriter.sealCurrentPage(); |
| // page without statistics size: 69 + chunk header size: 8 |
| assertEquals(77L, chunkWriter.getCurrentChunkSize()); |
| |
| try { |
| TestTsFileOutput testTsFileOutput = new TestTsFileOutput(); |
| TsFileIOWriter writer = new TsFileIOWriter(testTsFileOutput, true); |
| chunkWriter.writeAllPagesOfChunkToTsFile(writer); |
| PublicBAOS publicBAOS = testTsFileOutput.publicBAOS; |
| ByteBuffer buffer = ByteBuffer.wrap(publicBAOS.getBuf(), 0, publicBAOS.size()); |
| assertEquals(MetaMarker.ONLY_ONE_PAGE_VALUE_CHUNK_HEADER, ReadWriteIOUtils.readByte(buffer)); |
| assertEquals("s1", ReadWriteIOUtils.readVarIntString(buffer)); |
| assertEquals(69, ReadWriteForEncodingUtils.readUnsignedVarInt(buffer)); |
| assertEquals(TSDataType.FLOAT.serialize(), ReadWriteIOUtils.readByte(buffer)); |
| assertEquals(CompressionType.UNCOMPRESSED.serialize(), ReadWriteIOUtils.readByte(buffer)); |
| assertEquals(TSEncoding.PLAIN.serialize(), ReadWriteIOUtils.readByte(buffer)); |
| assertEquals(69, buffer.remaining()); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| fail(); |
| } |
| } |
| |
| @Test |
| public void testWrite2() { |
| Encoder valueEncoder = new PlainEncoder(TSDataType.FLOAT, 0); |
| ValueChunkWriter chunkWriter = |
| new ValueChunkWriter( |
| "s1", CompressionType.UNCOMPRESSED, TSDataType.FLOAT, TSEncoding.PLAIN, valueEncoder); |
| for (int time = 1; time <= 20; time++) { |
| chunkWriter.write(time, (float) time, time % 4 == 0); |
| } |
| chunkWriter.sealCurrentPage(); |
| for (int time = 20; time <= 40; time++) { |
| chunkWriter.write(time, (float) time, time % 4 == 0); |
| } |
| chunkWriter.sealCurrentPage(); |
| // two pages with statistics size: (69 + 41) * 2 + chunk header size: 9 |
| assertEquals(229L, chunkWriter.getCurrentChunkSize()); |
| |
| TestTsFileOutput testTsFileOutput = new TestTsFileOutput(); |
| TsFileIOWriter writer = new TsFileIOWriter(testTsFileOutput, true); |
| try { |
| chunkWriter.writeAllPagesOfChunkToTsFile(writer); |
| PublicBAOS publicBAOS = testTsFileOutput.publicBAOS; |
| ByteBuffer buffer = ByteBuffer.wrap(publicBAOS.getBuf(), 0, publicBAOS.size()); |
| assertEquals(MetaMarker.VALUE_CHUNK_HEADER, ReadWriteIOUtils.readByte(buffer)); |
| assertEquals("s1", ReadWriteIOUtils.readVarIntString(buffer)); |
| assertEquals(220, ReadWriteForEncodingUtils.readUnsignedVarInt(buffer)); |
| assertEquals(TSDataType.FLOAT.serialize(), ReadWriteIOUtils.readByte(buffer)); |
| assertEquals(CompressionType.UNCOMPRESSED.serialize(), ReadWriteIOUtils.readByte(buffer)); |
| assertEquals(TSEncoding.PLAIN.serialize(), ReadWriteIOUtils.readByte(buffer)); |
| assertEquals(220, buffer.remaining()); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| fail(); |
| } |
| } |
| } |