Created
January 25, 2016 01:06
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Generate log4j records or configurable size
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import com.google.common.base.Stopwatch; | |
import org.apache.log4j.Level; | |
import org.apache.log4j.Logger; | |
import java.util.Random; | |
import java.util.concurrent.TimeUnit; | |
public class Log4jRecordGenerator { | |
public static void main(String[] args) { | |
Logger logger = Logger.getLogger("Log4jRecordGenerator"); | |
MessageGenerator generator = new MessageGenerator(); | |
int count = 100000; | |
int recordSize = 2; //kb | |
Stopwatch stopwatch = Stopwatch.createStarted(); | |
for (int i = 0; i < count; i++) { | |
String msg = generator.buildMessage(i, recordSize * 1024); | |
logger.log(Level.toLevel(i % 5 * 10000), msg); | |
} | |
logger.debug("----------------- DONE HERE -----------------------"); | |
long time = stopwatch.elapsed(TimeUnit.MILLISECONDS); | |
System.out.println("Time to generate " | |
+ count | |
+ " records: " | |
+ time | |
+ " milli sec with rate: " | |
+ Math.round(count / time)); | |
} | |
static public class MessageGenerator { | |
Random random = new Random(); | |
public String buildMessage(long sequence, int length) { | |
StringBuilder builder = new StringBuilder(length); | |
builder.append('<').append(sequence).append(">\u001F"); | |
for (int i = 0; i < length; i++) { | |
builder.append((char) (random.nextInt(86) + 40)); | |
} | |
return builder.toString(); | |
} | |
} | |
} | |
# Simple configuration | |
#log4j.rootLogger = DEBUG, toFile1 | |
#log4j.appender.toFile1=org.apache.log4j.RollingFileAppender | |
#log4j.appender.toFile1.File=logs/example.log | |
#log4j.appender.toFile1.MaxFileSize=1Gb | |
#log4j.appender.toFile1.MaxBackupIndex=10 | |
#log4j.appender.toFile1.Append=false | |
#log4j.appender.toFile1.layout=org.apache.log4j.PatternLayout | |
#log4j.appender.toFile1.layout.ConversionPattern=%d{yyyy-MM-dd'T'HH:mm:ss.SSSXXX}\u001F%p\u001F%m%n |
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