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Commit bfeda0b

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test path & PrintStream
1 parent bdf0528 commit bfeda0b

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3 files changed

+137
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3 files changed

+137
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‎javademo/pom.xml

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<version>5.3.0.201903130848-r</version>
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</dependency>
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<!-- https://mvnrepository.com/artifact/com.jayway.awaitility/awaitility -->
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<dependency>
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<groupId>com.jayway.awaitility</groupId>
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<artifactId>awaitility</artifactId>
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<version>1.7.0</version>
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<scope>test</scope>
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</dependency>
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<!-- https://mvnrepository.com/artifact/org.mockito/mockito-core -->
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<dependency>
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<groupId>org.mockito</groupId>
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package io;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.PrintStream;
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import java.util.UUID;
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import lombok.AllArgsConstructor;
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import org.junit.Test;
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/**
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* @GitHub : https://github.com/zacscoding
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*/
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public class PrintstreamTest {
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@Test
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public void compare() throws Exception {
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//PrintType printType = PrintType.PRINTLN_APPEND;
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PrintType printType = PrintType.PRINTLN_BUILDER_INIT_CAPACITY;
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// PrintType printType = PrintType.PRINTF;
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int repeat = 10000;
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int threadCount = 5;
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File targetFile = new File("src/test/resources/io.txt");
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if (targetFile.exists()) {
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targetFile.delete();
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}
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PrintStream ps = new PrintStream(new FileOutputStream(targetFile));
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String[] messages = new String[repeat];
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for (int i = 0; i < repeat; i++) {
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messages[i] = UUID.randomUUID().toString() + UUID.randomUUID().toString() + UUID.randomUUID().toString();
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}
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Task[] tasks = new Task[threadCount];
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for (int i = 0; i < threadCount; i++) {
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tasks[i] = new Task(messages, ps, printType);
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}
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long start = System.currentTimeMillis();
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for (int i = 0; i < threadCount; i++) {
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tasks[i].start();
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}
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for (int i = 0; i < threadCount; i++) {
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tasks[i].join();
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}
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long elapsed = System.currentTimeMillis() - start;
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System.out.printf("## print type : %s >> %d [MS]\n", printType, elapsed);
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// Output
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// ## print type : PRINTLN_APPEND >> 336 [MS]
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// ## print type : PRINTLN_BUILDER >> 378 [MS]
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// ## print type : PRINTF >> 459 [MS]
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}
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@AllArgsConstructor
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public static class Task extends Thread {
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private String[] message;
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private PrintStream ps;
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private PrintType printType;
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@Override
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public void run() {
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int repeat = message.length - 1;
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for (int i = 0; i < repeat; i++) {
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switch (printType) {
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case PRINTLN_APPEND:
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ps.println(message[i] + message[i + 1]);
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break;
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case PRINTLN_BUILDER_INIT_CAPACITY:
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ps.println(
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new StringBuilder(message[i].length() + message[i + 1].length() + 50)
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.append(message[i])
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.append(message[i + 1])
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.toString()
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);
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break;
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case PRINTF:
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ps.printf("%s%s\n", message[i], message[i + 1]);
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}
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}
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}
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}
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private enum PrintType {
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PRINTLN_APPEND,
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PRINTLN_BUILDER_INIT_CAPACITY,
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PRINTF;
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}
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}
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package paths;
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import static org.junit.Assert.assertTrue;
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import java.io.File;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import org.junit.Test;
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/**
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* @GitHub : https://github.com/zacscoding
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*/
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public class WindowPathTest {
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@Test
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public void testPathsWithSlash() throws Exception {
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File configDir = new File("src/test/resources/config");
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String absolutePath = configDir.getAbsolutePath();
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System.out.println("AbsolutePath :: " + absolutePath);
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Path configDirPath = Paths.get(absolutePath);
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System.out.println("Path :: " + configDirPath.toString());
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assertTrue(configDirPath.toFile().exists());
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String configurerPathValue = absolutePath + "/configurer.json";
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Path configurerPath = Paths.get(configurerPathValue);
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System.out.println("Configurer path :: " + configurerPath);
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assertTrue(configurerPath.toFile().exists());
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}
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}

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