| /* |
| * 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.hbase.reporter; |
| |
| import static org.apache.hadoop.hbase.shaded.junit.framework.TestCase.assertEquals; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.hadoop.hbase.Cell; |
| import org.apache.hadoop.hbase.CellBuilderFactory; |
| import org.apache.hadoop.hbase.CellBuilderType; |
| import org.apache.hadoop.hbase.client.Result; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.junit.Test; |
| |
| public class TestTableReporter { |
| private static final byte [] CF = Bytes.toBytes("cf"); |
| private static final byte [] Q = Bytes.toBytes("q"); |
| |
| private List<Cell> makeCells(byte [] row, int columns, int versions) { |
| List<Cell> cells = new ArrayList<Cell>(columns); |
| for (int j = 0; j < columns; j++) { |
| for (int k = versions; k > 0; k--) { |
| Cell cell = CellBuilderFactory.create(CellBuilderType.DEEP_COPY). |
| setRow(row).setFamily(CF). |
| setQualifier(Bytes.toBytes(j)). |
| setType(Cell.Type.Put). |
| setTimestamp(k). |
| setValue(row).build(); |
| cells.add(cell); |
| } |
| } |
| return cells; |
| } |
| |
| @Test |
| public void testSimpleSketching() { |
| TableReporter.Sketches sketches = new TableReporter.Sketches(); |
| final int rows = 10; |
| final int columns = 3; |
| final int versions = 2; |
| for (int i = 0; i < rows; i++) { |
| TableReporter.processRowResult(Result.create(makeCells(Bytes.toBytes(i), |
| columns, versions)), sketches); |
| } |
| sketches.print(); |
| // Just check the column counts. Should be 2. |
| double [] columnCounts = sketches.columnCountSketch.getQuantiles(new double [] {1}); |
| assertEquals(columnCounts.length, 1); |
| assertEquals((int)columnCounts[0], columns * versions); |
| } |
| |
| @Test |
| public void testAddSketches() { |
| TableReporter.Sketches sketches = new TableReporter.Sketches(); |
| final int rows = 10; |
| final int columns = 3; |
| final int versions = 2; |
| for (int i = 0; i < rows; i++) { |
| TableReporter.processRowResult(Result.create(makeCells(Bytes.toBytes(i), |
| columns, versions)), sketches); |
| } |
| sketches.print(); |
| TableReporter.Sketches sketches2 = new TableReporter.Sketches(); |
| for (int i = 0; i < rows; i++) { |
| TableReporter.processRowResult(Result.create(makeCells(Bytes.toBytes(i), |
| columns, versions)), sketches2); |
| } |
| sketches2.print(); |
| TableReporter.AccumlatingSketch accumlator = new TableReporter.AccumlatingSketch(); |
| accumlator.add(sketches); |
| accumlator.add(sketches2); |
| TableReporter.Sketches sum = accumlator.get(); |
| |
| // Just check the column counts. Should be 2. |
| double [] columnCounts = sum.columnCountSketch.getQuantiles(new double [] {1}); |
| assertEquals(columnCounts.length, 1); |
| assertEquals((int)columnCounts[0], columns * versions); |
| sum.print(); |
| } |
| } |