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BAEL-8684: Comparison with HSSFWorkbook, XSSFWorkbook, and SXSSFWorkbook in Apache POI (#17812)
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‎apache-poi-3/pom.xml‎

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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-core</artifactId>
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<version>${logback-core.version}</version>
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</dependency>
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</dependency>
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<dependency>
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<groupId>org.openjdk.jmh</groupId>
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<artifactId>jmh-core</artifactId>
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<version>${jmh.version}</version>
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</dependency>
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<dependency>
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<groupId>org.openjdk.jmh</groupId>
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<artifactId>jmh-generator-annprocess</artifactId>
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<version>${jmh.version}</version>
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</dependency>
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</dependencies>
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<properties>
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<jxl.version>2.6.12</jxl.version>
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<poitl.version>1.12.2</poitl.version>
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<logback-classic.version>1.5.6</logback-classic.version>
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<logback-core.version>1.5.6</logback-core.version>
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<logback-core.version>1.5.6</logback-core.version>
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<jmh.version>1.37</jmh.version>
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</properties>
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</project>

‎apache-poi-3/src/main/java/com/baeldung/poi/benchmark/WorkbookBenchmark.java‎

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package com.baeldung.poi.benchmark;
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import java.io.IOException;
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import java.util.concurrent.TimeUnit;
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import org.apache.poi.hssf.usermodel.HSSFWorkbook;
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import org.apache.poi.ss.usermodel.Cell;
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import org.apache.poi.ss.usermodel.Row;
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import org.apache.poi.ss.usermodel.Sheet;
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import org.apache.poi.ss.usermodel.Workbook;
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import org.apache.poi.xssf.streaming.SXSSFWorkbook;
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import org.apache.poi.xssf.usermodel.XSSFWorkbook;
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import org.openjdk.jmh.annotations.*;
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import org.openjdk.jmh.infra.Blackhole;
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import org.openjdk.jmh.profile.MemPoolProfiler;
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import org.openjdk.jmh.runner.Runner;
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import org.openjdk.jmh.runner.options.Options;
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import org.openjdk.jmh.runner.options.OptionsBuilder;
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@State(Scope.Benchmark)
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@BenchmarkMode(Mode.AverageTime)
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@Warmup(iterations = 1, time = 2)
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@Measurement(iterations = 3, time = 1)
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@OutputTimeUnit(TimeUnit.MILLISECONDS)
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@Fork(value = 1)
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public class WorkbookBenchmark
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{
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@Benchmark
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public static void write2500RowsToHSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(new HSSFWorkbook(), 2500, blackhole);
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}
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@Benchmark
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public static void write5000RowsToHSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(new HSSFWorkbook(), 5000, blackhole);
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}
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@Benchmark
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public static void write10000RowsToHSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(new HSSFWorkbook(), 10000, blackhole);
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}
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@Benchmark
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public static void write20000RowsToHSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(new HSSFWorkbook(), 20000, blackhole);
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}
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@Benchmark
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public static void write40000RowsToHSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(new HSSFWorkbook(), 40000, blackhole);
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}
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@Benchmark
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public static void write2500RowsToXSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(new XSSFWorkbook(), 2500, blackhole);
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}
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@Benchmark
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public static void write5000RowsToXSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(new XSSFWorkbook(), 5000, blackhole);
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}
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@Benchmark
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public static void write10000RowsToXSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(new XSSFWorkbook(), 10000, blackhole);
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}
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@Benchmark
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public static void write20000RowsToXSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(new XSSFWorkbook(), 20000, blackhole);
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}
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@Benchmark
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public static void write40000RowsToXSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(new XSSFWorkbook(), 40000, blackhole);
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}
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@Benchmark
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public static void write2500RowsToSXSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(new SXSSFWorkbook(), 2500, blackhole);
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}
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@Benchmark
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public static void write5000RowsToSXSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(new SXSSFWorkbook(), 5000, blackhole);
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}
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@Benchmark
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public static void write10000RowsToSXSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(getSXSSFWorkbook(), 10000, blackhole);
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}
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@Benchmark
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public static void write20000RowsToSXSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(getSXSSFWorkbook(), 20000, blackhole);
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}
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@Benchmark
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public static void write40000RowsToSXSSFWorkbook(Blackhole blackhole) throws IOException {
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writeRowsToWorkbook(getSXSSFWorkbook(), 40000, blackhole);
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}
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private static SXSSFWorkbook getSXSSFWorkbook() {
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SXSSFWorkbook workbook = new SXSSFWorkbook();
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workbook.setCompressTempFiles(true);
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return workbook;
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}
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public static void writeRowsToWorkbook(Workbook workbook, int iterations, Blackhole blackhole) throws IOException {
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Sheet sheet = workbook.createSheet();
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for (int n=0;n<iterations;n++) {
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Row row = sheet.createRow(sheet.getLastRowNum()+1);
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for (int c=0;c<256;c++) {
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Cell cell = row.createCell(c);
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cell.setCellValue("abcdefghijklmnopqrstuvwxyz");
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}
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}
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workbook.close();
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blackhole.consume(workbook);
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}
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public static void main(String[] args) throws Exception {
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Options options = new OptionsBuilder()
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.include(WorkbookBenchmark.class.getSimpleName()).threads(1)
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.shouldFailOnError(true)
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.shouldDoGC(true)
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.addProfiler(MemPoolProfiler.class)
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.jvmArgs("-server").build();
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new Runner(options).run();
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}
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}

‎apache-poi-3/src/test/java/com/baeldung/poi/benchmark/SXSSFWorkbookFunctionTest.java‎

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package com.baeldung.poi.benchmark;
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import org.apache.poi.ss.usermodel.Cell;
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import org.apache.poi.ss.usermodel.FormulaEvaluator;
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import org.apache.poi.ss.usermodel.Row;
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import org.apache.poi.ss.usermodel.Sheet;
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import org.apache.poi.ss.usermodel.Workbook;
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import org.apache.poi.xssf.streaming.SXSSFFormulaEvaluator;
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import org.apache.poi.xssf.streaming.SXSSFWorkbook;
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import org.junit.jupiter.api.AfterEach;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Test;
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import java.io.*;
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import static org.assertj.core.api.Assertions.assertThat;
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import static org.junit.jupiter.api.Assertions.*;
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class SXSSFWorkbookFunctionTest {
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private Workbook workbook;
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private Sheet sheet;
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@BeforeEach
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void setup() {
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workbook = new SXSSFWorkbook(1);
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sheet = workbook.createSheet("Test Sheet");
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sheet.createRow(0).createCell(0).setCellValue(5);
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sheet.createRow(1).createCell(0).setCellValue(15);
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}
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@Test
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void whenAutoSizeColumnOnSXSSFWorkbook_thenThrowsIllegalStateException() {
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assertThrows(IllegalStateException.class, () -> sheet.autoSizeColumn(0));
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}
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@Test
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void whenCloneSheetOnSXSSFWorkbook_thenThrowsIllegalStateException() {
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assertThrows(IllegalStateException.class, () -> workbook.cloneSheet(0));
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}
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@Test
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void whenEvaluateFormulaCellOnSXSSFWorkbook_thenThrowsIllegalStateException() {
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Cell formulaCell = sheet.createRow(sheet.getLastRowNum()).createCell(0);
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formulaCell.setCellFormula("SUM(A1:B1)");
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FormulaEvaluator evaluator = workbook.getCreationHelper().createFormulaEvaluator();
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assertThrows(SXSSFFormulaEvaluator.RowFlushedException.class, () -> evaluator.evaluateFormulaCell(formulaCell));
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}
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@Test
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void whenGetRowOnSXSSFWorkbook_thenReturnNull() {
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Row row = sheet.getRow(0);
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assertThat(row).isNull();
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}
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@Test
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void whenShiftColumnsOnSXSSFWorkbook_thenThrowsUnsupportedOperationException() {
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assertThrows(UnsupportedOperationException.class, () -> sheet.shiftColumns(0, 2, 1));
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}
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@AfterEach
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void cleanUp() throws IOException {
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workbook.close();
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}
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}

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