| /* |
| * 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.common.block; |
| |
| import org.apache.iotdb.tsfile.common.conf.TSFileConfig; |
| import org.apache.iotdb.tsfile.read.common.block.column.BinaryColumn; |
| import org.apache.iotdb.tsfile.read.common.block.column.BooleanColumn; |
| import org.apache.iotdb.tsfile.read.common.block.column.Column; |
| import org.apache.iotdb.tsfile.read.common.block.column.ColumnEncoder; |
| import org.apache.iotdb.tsfile.read.common.block.column.ColumnEncoderFactory; |
| import org.apache.iotdb.tsfile.read.common.block.column.ColumnEncoding; |
| import org.apache.iotdb.tsfile.read.common.block.column.DoubleColumn; |
| import org.apache.iotdb.tsfile.read.common.block.column.FloatColumn; |
| import org.apache.iotdb.tsfile.read.common.block.column.IntColumn; |
| import org.apache.iotdb.tsfile.read.common.block.column.LongColumn; |
| import org.apache.iotdb.tsfile.read.common.block.column.RunLengthEncodedColumn; |
| import org.apache.iotdb.tsfile.utils.Binary; |
| |
| 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.Optional; |
| |
| public class RunLengthColumnEncoderTest { |
| |
| private void testInternal(Column column) { |
| final int positionCount = 10; |
| |
| Column input = new RunLengthEncodedColumn(column, positionCount); |
| long expectedRetainedSize = input.getRetainedSizeInBytes(); |
| ColumnEncoder encoder = ColumnEncoderFactory.get(ColumnEncoding.RLE); |
| |
| ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); |
| DataOutputStream dos = new DataOutputStream(byteArrayOutputStream); |
| try { |
| encoder.writeColumn(dos, input); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| Assert.fail(); |
| } |
| |
| ByteBuffer buffer = ByteBuffer.wrap(byteArrayOutputStream.toByteArray()); |
| Column output = encoder.readColumn(buffer, input.getDataType(), positionCount); |
| Assert.assertEquals(positionCount, output.getPositionCount()); |
| Assert.assertFalse(output.mayHaveNull()); |
| Assert.assertEquals(expectedRetainedSize, output.getRetainedSizeInBytes()); |
| for (int i = 0; i < positionCount; i++) { |
| Assert.assertEquals(column.getObject(0), output.getObject(i)); |
| } |
| } |
| |
| @Test |
| public void testBooleanColumn() { |
| testInternal(new BooleanColumn(1, Optional.empty(), new boolean[] {true})); |
| } |
| |
| @Test |
| public void testIntColumn() { |
| testInternal(new IntColumn(1, Optional.empty(), new int[] {0})); |
| } |
| |
| @Test |
| public void testLongColumn() { |
| testInternal(new LongColumn(1, Optional.empty(), new long[] {0L})); |
| } |
| |
| @Test |
| public void testFloatColumn() { |
| testInternal(new FloatColumn(1, Optional.empty(), new float[] {0.0F})); |
| } |
| |
| @Test |
| public void testDoubleColumn() { |
| testInternal(new DoubleColumn(1, Optional.empty(), new double[] {0.0D})); |
| } |
| |
| @Test |
| public void testTextColumn() { |
| testInternal( |
| new BinaryColumn( |
| 1, Optional.empty(), new Binary[] {new Binary("foo", TSFileConfig.STRING_CHARSET)})); |
| } |
| } |