/*
* 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.logging.log4j.core.appender;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.core.Layout;
import org.apache.logging.log4j.core.impl.Log4jLogEvent;
import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.layout.PatternLayout;
import org.apache.logging.log4j.message.SimpleMessage;
import org.junit.After;
import org.junit.Test;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
*
*/
public class FileAppenderTest {
private static final String FILENAME = "target/fileAppenderTest.log";
private static final int THREADS = 2;
@BeforeClass
public static void setupClass() {
deleteFile();
}
@AfterClass
public static void cleanupClass() {
deleteFile();
assertTrue("Manager for " + FILENAME + " not removed", !OutputStreamManager.hasManager(FILENAME));
}
@After
public void teardown() {
deleteFile();
}
@Test
public void testAppender() throws Exception {
writer(false, 1, "test");
verifyFile(1);
}
@Test
public void testLockingAppender() throws Exception {
writer(true, 1, "test");
verifyFile(1);
}
@Test
public void testMultipleAppenders() throws Exception {
ExecutorService pool = Executors.newFixedThreadPool(THREADS);
int count = 10;
Runnable runnable = new FileWriterRunnable(false, count);
for (int i=0; i < THREADS; ++i) {
pool.execute(runnable);
}
pool.shutdown();
pool.awaitTermination(10, TimeUnit.SECONDS);
verifyFile(THREADS * count);
}
@Test
public void testMultipleLockedAppenders() throws Exception {
ExecutorService pool = Executors.newFixedThreadPool(THREADS);
int count = 10;
Runnable runnable = new FileWriterRunnable(true, count);
for (int i=0; i < THREADS; ++i) {
pool.execute(runnable);
}
pool.shutdown();
pool.awaitTermination(10, TimeUnit.SECONDS);
verifyFile(THREADS * count);
}
//@Test
public void testMultipleVMs() throws Exception {
String classPath = System.getProperty("java.class.path");
Integer count = 10;
int processes = 3;
Process[] process = new Process[processes];
ProcessBuilder[] builders = new ProcessBuilder[processes];
for (int index=0; index < processes; ++index) {
builders[index] = new ProcessBuilder("java","-cp", classPath, ProcessTest.class.getName(),
"Process " + index, count.toString(), "true");
}
for (int index=0; index < processes; ++index) {
process[index] = builders[index].start();
}
for (int index=0; index < processes; ++index) {
Process p = process[index];
//System.out.println("Process " + index + " exited with " + p.waitFor());
InputStream is = p.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String line;
while ((line = br.readLine()) != null) {
System.out.println(line);
}
is.close();
p.destroy();
}
verifyFile(count * processes);
}
private static void writer(boolean lock, int count, String name) throws Exception {
Layout layout = PatternLayout.createLayout(PatternLayout.SIMPLE_CONVERSION_PATTERN, null, null, null);
FileAppender app = FileAppender.createAppender(FILENAME, "true", Boolean.toString(lock), "test", "false",
"false", "false", layout, null);
Thread t = Thread.currentThread();
app.start();
assertTrue("Appender did not start", app.isStarted());
for (int i=0; i < count; ++i) {
LogEvent event = new Log4jLogEvent("TestLogger", null, FileAppenderTest.class.getName(), Level.INFO,
new SimpleMessage("Test"), null, null, null, name, null, System.currentTimeMillis());
try {
app.append(event);
t.sleep(25); // Give up control long enough for another thread/process to occasionally do something.
} catch (Exception ex) {
throw ex;
}
}
app.stop();
assertFalse("Appender did not stop", app.isStarted());
}
private void verifyFile(int count) throws Exception {
//String expected = "[\\w]* \\[\\s*\\] INFO TestLogger - Test$";
String expected = "^\\d{4}-\\d{2}-\\d{2} \\d{2}:\\d{2}:\\d{2},\\d{3} \\[[^\\]]*\\] INFO TestLogger - Test";
Pattern pattern = Pattern.compile(expected);
FileInputStream fis = new FileInputStream(FILENAME);
DataInputStream is = new DataInputStream(new BufferedInputStream(fis));
int counter = 0;
String str = "";
while (is.available() != 0) {
str = is.readLine();
//System.out.println(str);
++counter;
Matcher matcher = pattern.matcher(str);
assertTrue("Bad data: " + str, matcher.matches());
}
fis.close();
assertTrue("Incorrect count: was " + counter + " should be " + count, count == counter);
fis.close();
}
private static void deleteFile() {
File file = new File(FILENAME);
if (file.exists()) {
assertTrue(file.delete());
}
}
public class FileWriterRunnable implements Runnable {
private final boolean lock;
private final int count;
public FileWriterRunnable(boolean lock, int count) {
this.lock = lock;
this.count = count;
}
public void run() {
Thread thread = Thread.currentThread();
try {
writer(lock, count, thread.getName());
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
}
public static class ProcessTest {
public static void main(String[] args) {
if (args.length != 3) {
System.out.println("Required arguments 'id', 'count' and 'lock' not provided");
System.exit(-1);
}
String id = args[0];
int count = Integer.parseInt(args[1]);
if (count <= 0) {
System.out.println("Invalid count value: " + args[1]);
System.exit(-1);
}
boolean lock = Boolean.parseBoolean(args[2]);
//System.out.println("Got arguments " + id + ", " + count + ", " + lock);
try {
writer(lock, count, id);
//thread.sleep(50);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
}
}