/**
* Keep track, collect and update the stats of all the <tt>MediaStreamStats</tt> this
* <tt>HammerStats</tt> handles.
*
* <p>Also write the results in the stats files.
*/
public void run() {
PrintWriter writer = null;
StringBuilder allBldr = new StringBuilder();
String delim;
String delim_ = "";
synchronized (this) {
threadStop = false;
}
logger.info("Running the main loop");
System.out.println("Inside HammerStats run method.\n");
while (!threadStop) {
synchronized (this) {
if (overallStatsLogging || allStatsLogging || summaryStatsLogging) {
if (allStatsLogging || summaryStatsLogging) {
if (writer == null) {
try {
writer = new PrintWriter(allStatsFile, "UTF-8");
writer.print("[\n");
} catch (FileNotFoundException e) {
logger.fatal("HammerStats stopping due to FileNotFound", e);
stop();
} catch (UnsupportedEncodingException e) {
logger.fatal("HammerStats stopping due to " + "UnsupportedEncoding", e);
}
}
// Clear the StringBuilder
allBldr.setLength(0);
writer.print(delim_ + '\n');
delim_ = ",";
writer.print("{\n");
writer.print(" \"timestamp\":" + System.currentTimeMillis() + ",\n");
}
delim = "";
logger.info("Updating the MediaStreamStats");
for (FakeUserStats stats : fakeUserStatsList) {
// We update the stats before using/reading them.
stats.updateStats();
}
for (FakeUserStats stats : fakeUserStatsList) {
if (allStatsLogging) {
allBldr.append(delim + stats.getStatsJSON(2) + '\n');
delim = ",";
}
if (summaryStatsLogging || overallStatsLogging) {
logger.info(
"Adding stats values from the"
+ " MediaStreamStats to their"
+ " HammerSummaryStats objects");
audioSummaryStats.add(stats.getMediaStreamStats(MediaType.AUDIO));
videoSummaryStats.add(stats.getMediaStreamStats(MediaType.VIDEO));
}
}
if (allStatsLogging) {
logger.info("Writing all stats to file");
writer.print(" \"users\":\n");
writer.print(" [\n");
writer.print(allBldr.toString());
writer.print(" ]");
if (summaryStatsLogging) writer.print(',');
writer.print('\n');
}
if (summaryStatsLogging) {
logger.info("Writing summary stats to file");
writer.print(" \"summary\":\n");
writer.print(" {\n");
writer.print(" \"max\":\n");
writer.print(" {\n");
writer.print(" \"audio\":");
writer.print(audioSummaryStats.getMaxJSON() + ",\n");
writer.print(" \"video\":");
writer.print(videoSummaryStats.getMaxJSON() + '\n');
writer.print(" },\n");
writer.print(" \"mean\":\n");
writer.print(" {\n");
writer.print(" \"audio\":");
writer.print(audioSummaryStats.getMeanJSON() + ",\n");
writer.print(" \"video\":");
writer.print(videoSummaryStats.getMeanJSON() + '\n');
writer.print(" },\n");
writer.print(" \"min\":\n");
writer.print(" {\n");
writer.print(" \"audio\":");
writer.print(audioSummaryStats.getMinJSON() + ",\n");
writer.print(" \"video\":");
writer.print(videoSummaryStats.getMinJSON() + '\n');
writer.print(" },\n");
writer.print(" \"standard_deviation\":\n");
writer.print(" {\n");
writer.print(" \"audio\":");
writer.print(audioSummaryStats.getStandardDeviationJSON() + ",\n");
writer.print(" \"video\":");
writer.print(videoSummaryStats.getStandardDeviationJSON() + '\n');
writer.print(" }\n");
writer.print(" }\n");
}
if (allStatsLogging || summaryStatsLogging) {
writer.append("}");
writer.flush();
}
}
if (summaryStatsLogging || overallStatsLogging) {
logger.info(
"Clearing the HammerSummaryStats by creating new"
+ " SummaryStats objects for each watched stats");
audioSummaryStats.clear();
videoSummaryStats.clear();
}
}
try {
Thread.sleep(timeBetweenUpdate * 1000);
} catch (InterruptedException e) {
logger.fatal("Error during sleep in main loop : " + e);
stop();
}
}
logger.info("Exiting the main loop");
if (writer != null) {
writer.print("]\n");
writer.close();
}
if (overallStatsLogging) writeOverallStats();
}
/**
* Create and return the String that contains the overall stats (in JSON).
*
* @return the String that contains the overall stats.
*/
protected String getOverallStatsJSON() {
StringBuilder bldr = new StringBuilder();
bldr.append("{\n");
bldr.append(" \"max\":\n");
bldr.append(" {\n");
bldr.append(" \"audio\":");
bldr.append(audioSummaryStats.getAggregateMaxJSON() + ",\n");
bldr.append(" \"video\":");
bldr.append(videoSummaryStats.getAggregateMaxJSON() + '\n');
bldr.append(" },\n");
bldr.append(" \"mean\":\n");
bldr.append(" {\n");
bldr.append(" \"audio\":");
bldr.append(audioSummaryStats.getAggregateMeanJSON() + ",\n");
bldr.append(" \"video\":");
bldr.append(videoSummaryStats.getAggregateMeanJSON() + '\n');
bldr.append(" },\n");
bldr.append(" \"min\":\n");
bldr.append(" {\n");
bldr.append(" \"audio\":");
bldr.append(audioSummaryStats.getAggregateMinJSON() + ",\n");
bldr.append(" \"video\":");
bldr.append(videoSummaryStats.getAggregateMinJSON() + '\n');
bldr.append(" },\n");
bldr.append(" \"standard_deviation\":\n");
bldr.append(" {\n");
bldr.append(" \"audio\":");
bldr.append(audioSummaryStats.getAggregateStandardDeviationJSON() + ",\n");
bldr.append(" \"video\":");
bldr.append(videoSummaryStats.getAggregateStandardDeviationJSON() + '\n');
bldr.append(" },\n");
bldr.append(" \"sum\":\n");
bldr.append(" {\n");
bldr.append(" \"audio\":");
bldr.append(audioSummaryStats.getAggregateSumJSON() + ",\n");
bldr.append(" \"video\":");
bldr.append(videoSummaryStats.getAggregateSumJSON() + '\n');
bldr.append(" }\n");
bldr.append("}\n");
return bldr.toString();
}