/* This file is part of VoltDB.
* Copyright (C) 2008-2017 VoltDB Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
package log4jsocketimporter;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Random;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
/**
* Starts multiple threads logging to log4j.
* The log statements are of the form "<timetakenMillis>" to make it easy to use this in a demo app.
* Also starts a input reader loop that calculates some operation time statistics based on user input.
*/
public class LogTestClient
{
public static void main(String[] args) throws IOException
{
// start 10 threads that log
int numThreads = 10;
System.out.println("Starting " + numThreads + " threads logging messages");
ExecutorService executor = Executors.newFixedThreadPool(numThreads);
for (int i=0; i<numThreads; i++) {
executor.submit(new LoggingRunnable(i));
}
LogAnalyzer analyzer = new LogAnalyzer(args.length==0 ? "localhost" : args[0]);
// Read user input and get statistics on operations
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
while(true) {
System.out.print("Enter operation to analyze or Exit/Quit to quit: ");
String input = reader.readLine();
if (input.equalsIgnoreCase("exit") || input.equalsIgnoreCase("quit")) {
break;
}
analyzer.analyzeOperation(input);
}
System.exit(0);
}
/**
* Runnable that generates logs in different categories and with different messages.
*/
private static class LoggingRunnable implements Runnable
{
private static final Level[] levels =
{ Level.DEBUG, Level.ERROR, Level.FATAL, Level.INFO, Level.TRACE, Level.WARN };
private static final OperationInfo[] s_operations = {
new OperationInfo(Logger.getLogger("xs"), 25, 10),
new OperationInfo(Logger.getLogger("small"), 100, 40),
new OperationInfo(Logger.getLogger("medium"), 500, 100),
new OperationInfo(Logger.getLogger("large"), 1000, 300)
};
@SuppressWarnings("unused")
private final int m_id;
public LoggingRunnable(int id)
{
m_id = id;
}
@Override
public void run()
{
Random random = new Random();
int count = 0;
while (true) {
/*
String msg = String.format("From logger %d - Count %d", m_id, count++);
if (count%5==0) {
logger.log(levels[random.nextInt(levels.length)], msg, new Exception("test exception from " + m_id));
} else {
*/
// About 20% of the time, generate times that go over the threshold
boolean exceedThreshold = random.nextInt(5)==0;
OperationInfo op = s_operations[count%s_operations.length];
int opTimeTaken = exceedThreshold ? (op.thresholdTime + random.nextInt(op.timeDelta)) : random.nextInt(op.thresholdTime);
op.logger.log(levels[random.nextInt(levels.length)], opTimeTaken);
//}
count++;
}
}
}
private static class OperationInfo
{
final Logger logger;
final int thresholdTime;
final int timeDelta;
public OperationInfo(Logger logger, int thresholdTime, int timeDelta)
{
this.logger = logger;
this.thresholdTime = thresholdTime;
this.timeDelta = timeDelta;
}
}
}