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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.logging;
import com.yahoo.io.IOUtils;
import org.junit.Test;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.logging.Formatter;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import java.util.logging.SimpleFormatter;
import java.util.zip.GZIPInputStream;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* @author <a href="mailto:travisb@yahoo-inc.com">Bob Travis</a>
*/
// TODO: Make these tests wait until the right things happen rather than waiting for a predetermined time
// These tests take too long, and are not cleaning up properly. See how this should be done in YApacheLogTestCase
public class LogFileHandlerTestCase {
/**
* The scenario
*/
@Test
public void testIt() {
LogFileHandler h = new LogFileHandler();
h.setFilePattern("./logfilehandlertest.%Y%m%d%H%M%S");
h.setFormatter(new Formatter() {
public String format(LogRecord r) {
DateFormat df = new SimpleDateFormat("yyyy.MM.dd:HH:mm:ss.SSS");
String timeStamp = df.format(new Date(r.getMillis()));
return ("["+timeStamp+"]" + " " + formatMessage(r) + "\n");
}
} );
long now = System.currentTimeMillis();
long millisPerDay = 60*60*24*1000;
long tomorrowDays = (now / millisPerDay) +1;
long tomorrowMillis = tomorrowDays * millisPerDay;
assertEquals (tomorrowMillis, h.getNextRotationTime(now));
long[] rTimes = {1000, 2000, 10000};
h.setRotationTimes(rTimes);
assertEquals (tomorrowMillis+1000, h.getNextRotationTime(tomorrowMillis));
assertEquals (tomorrowMillis+10000, h.getNextRotationTime(tomorrowMillis+3000));
boolean okToWrite = false; // don't want regular unit tests to create tiles....
if (okToWrite) {
LogRecord lr = new LogRecord(Level.INFO, "test");
h.publish(lr);
h.publish(new LogRecord(Level.INFO, "another test"));
h.rotateNow();
h.publish(lr);
h.flush();
}
}
private boolean delete(String fileOrDir) {
File file = new File(fileOrDir);
return file.delete();
}
private void deleteOnExit(String fileOrDir) {
new File(fileOrDir).deleteOnExit();
}
private static void deleteRecursive(String directory) {
IOUtils.recursiveDeleteDir(new File(directory));
}
@Test
public void testSimpleLogging() {
String logFilePattern = "./testLogFileG1.txt";
//create logfilehandler
LogFileHandler h = new LogFileHandler();
h.setFilePattern(logFilePattern);
h.setFormatter(new SimpleFormatter());
h.setRotationTimes("0 5 ...");
//write log
LogRecord lr = new LogRecord(Level.INFO, "testDeleteFileFirst1");
h.publish(lr);
h.flush();
new File(logFilePattern).deleteOnExit();
}
@Test
public void testDeleteFileDuringLogging() {
String logFilePattern = "./testLogFileG2.txt";
//create logfilehandler
LogFileHandler h = new LogFileHandler();
h.setFilePattern(logFilePattern);
h.setFormatter(new SimpleFormatter());
h.setRotationTimes("0 5 ...");
//write log
LogRecord lr = new LogRecord(Level.INFO, "testDeleteFileDuringLogging1");
h.publish(lr);
h.flush();
//delete log file
delete(logFilePattern);
//write log again
lr = new LogRecord(Level.INFO, "testDeleteFileDuringLogging2");
h.publish(lr);
h.flush();
new File(logFilePattern).deleteOnExit();
}
@Test
public void testSymlink() {
LogFileHandler h = new LogFileHandler();
h.setFilePattern("./testlogforsymlinkchecking/logfilehandlertest.%Y%m%d%H%M%S%s");
h.setFormatter(new Formatter() {
public String format(LogRecord r) {
DateFormat df = new SimpleDateFormat("yyyy.MM.dd:HH:mm:ss.SSS");
String timeStamp = df.format(new Date(r.getMillis()));
return ("["+timeStamp+"]" + " " + formatMessage(r) + "\n");
}
} );
h.setSymlinkName("symlink");
LogRecord lr = new LogRecord(Level.INFO, "test");
h.publish(lr);
String f1 = h.getFileName();
String f2 = null;
try {
while (f1 == null) {
Thread.sleep(1);
f1 = h.getFileName();
}
h.rotateNow();
Thread.sleep(1);
f2 = h.getFileName();
while (f1.equals(f2)) {
Thread.sleep(1);
f2 = h.getFileName();
}
lr = new LogRecord(Level.INFO, "string which is way longer than the word test");
h.publish(lr);
Thread.sleep(1000);
File f = new File(f1);
long first = f.length();
f = new File(f2);
long second = f.length();
final long secondLength = 72;
for (int n = 0; n < 20 && second != secondLength; ++n) {
Thread.sleep(1000);
second = f.length();
}
f = new File("./testlogforsymlinkchecking", "symlink");
long link = f.length();
assertEquals(secondLength, link);
assertEquals(31, first);
assertEquals(secondLength, second);
} catch (InterruptedException e) {
// just let the test pass
}
deleteOnExit("./testlogforsymlinkchecking");
deleteOnExit("./testlogforsymlinkchecking/symlink");
deleteOnExit(f1);
if (f2 != null)
deleteOnExit(f2);
}
@Test
public void testcompression() throws InterruptedException, IOException {
IOUtils.recursiveDeleteDir(new File("./testcompression"));
LogFileHandler h = new LogFileHandler(true);
h.setFilePattern("./testcompression/logfilehandlertest.%Y%m%d%H%M%S%s");
h.setFormatter(new Formatter() {
public String format(LogRecord r) {
DateFormat df = new SimpleDateFormat("yyyy.MM.dd:HH:mm:ss.SSS");
String timeStamp = df.format(new Date(r.getMillis()));
return ("["+timeStamp+"]" + " " + formatMessage(r) + "\n");
}
} );
for (int i=0; i < 10000; i++) {
LogRecord lr = new LogRecord(Level.INFO, "test");
h.publish(lr);
}
String f1 = h.getFileName();
assertTrue(f1.startsWith("./testcompression/logfilehandlertest."));
File uncompressed = new File(f1);
File compressed = new File(f1 + ".gz");
h.waitDrained();
assertTrue(uncompressed.exists());
assertFalse(compressed.exists());
String content = IOUtils.readFile(uncompressed);
assertEquals(310000, content.length());
h.rotateNow();
while (uncompressed.exists()) {
Thread.sleep(10);
}
assertTrue(compressed.exists());
String unzipped = IOUtils.readAll(new InputStreamReader(new GZIPInputStream(new FileInputStream(compressed))));
assertEquals(content, unzipped);
IOUtils.recursiveDeleteDir(new File("./testcompression"));
}
}
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