// http://jira.codehaus.org/browse/PERFFORJ-21
public void testAppendersTimesliceOver() throws Exception {
// need to do immediateflush on the fileappender since close will not be called
DOMConfigurator.configure(getClass().getResource("log4j-timeslicebug.xml"));
AsyncCoalescingStatisticsAppender appender =
(AsyncCoalescingStatisticsAppender)
Logger.getLogger(StopWatch.DEFAULT_LOGGER_NAME).getAppender("coalescingStatistics");
// log from a bunch of threads
TestLoggingThread[] testThreads = new TestLoggingThread[10];
for (int i = 0; i < testThreads.length; i++) {
testThreads[i] = new TestLoggingThread();
testThreads[i].start();
}
for (TestLoggingThread testThread : testThreads) {
testThread.join();
}
// we should see all the logging after waiting this long
Thread.sleep(2 * appender.getTimeSlice());
// simple verification ensures that the total number of logged messages is correct.
// tagName avg min max std dev count, which is group 1
String regex = "tag\\d+\\s*\\d+\\.\\d\\s*\\d+\\s*\\d+\\s*\\d+\\.\\d\\s*(\\d+)";
Pattern statLinePattern = Pattern.compile(regex);
Scanner scanner = new Scanner(new File("target/statisticsLog-timeslicebug.log"));
int totalCount = 0;
while (scanner.findWithinHorizon(statLinePattern, 0) != null) {
totalCount += Integer.parseInt(scanner.match().group(1));
}
assertEquals(testThreads.length * TestLoggingThread.STOP_WATCH_COUNT, totalCount);
}
public void testAppenders() throws Exception {
DOMConfigurator.configure(getClass().getResource("log4j.xml"));
AsyncCoalescingStatisticsAppender appender =
(AsyncCoalescingStatisticsAppender)
Logger.getLogger(StopWatch.DEFAULT_LOGGER_NAME).getAppender("coalescingStatistics");
// log from a bunch of threads
TestLoggingThread[] testThreads = new TestLoggingThread[10];
for (int i = 0; i < testThreads.length; i++) {
testThreads[i] = new TestLoggingThread();
testThreads[i].start();
}
for (TestLoggingThread testThread : testThreads) {
testThread.join();
}
// close the output appender, which prevents us from returning until this method completes.
appender.close();
// simple verification ensures that the total number of logged messages is correct.
// tagName avg min max std dev count, which is group 1
String regex = "tag\\d\\s*\\d+\\.\\d\\s*\\d+\\s*\\d+\\s*\\d+\\.\\d\\s*(\\d+)";
Pattern statLinePattern = Pattern.compile(regex);
Scanner scanner = new Scanner(new File("target/statisticsLog.log"));
int totalCount = 0;
while (scanner.findWithinHorizon(statLinePattern, 0) != null) {
totalCount += Integer.parseInt(scanner.match().group(1));
}
assertEquals(testThreads.length * TestLoggingThread.STOP_WATCH_COUNT, totalCount);
}