public void run() {
String threadName = Thread.currentThread().getName();
Thread.currentThread().setName("SCM polling for " + job);
try {
startTime = System.currentTimeMillis();
if (runPolling()) {
AbstractProject p = job.asProject();
String name = " #" + p.getNextBuildNumber();
SCMTriggerCause cause;
try {
cause = new SCMTriggerCause(getLogFile());
} catch (IOException e) {
LOGGER.log(WARNING, "Failed to parse the polling log", e);
cause = new SCMTriggerCause();
}
if (p.scheduleBuild(p.getQuietPeriod(), cause, additionalActions)) {
LOGGER.info("SCM changes detected in " + job.getName() + ". Triggering " + name);
} else {
LOGGER.info(
"SCM changes detected in " + job.getName() + ". Job is already in the queue");
}
}
} finally {
Thread.currentThread().setName(threadName);
}
}
private boolean runPolling() {
try {
// to make sure that the log file contains up-to-date text,
// don't do buffering.
StreamTaskListener listener = new StreamTaskListener(getLogFile());
try {
PrintStream logger = listener.getLogger();
long start = System.currentTimeMillis();
logger.println("Started on " + DateFormat.getDateTimeInstance().format(new Date()));
boolean result = job.poll(listener).hasChanges();
logger.println(
"Done. Took " + Util.getTimeSpanString(System.currentTimeMillis() - start));
if (result) {
logger.println("Changes found");
} else {
logger.println("No changes");
}
return result;
} catch (Error e) {
e.printStackTrace(listener.error("Failed to record SCM polling"));
LOGGER.log(Level.SEVERE, "Failed to record SCM polling", e);
throw e;
} catch (RuntimeException e) {
e.printStackTrace(listener.error("Failed to record SCM polling"));
LOGGER.log(Level.SEVERE, "Failed to record SCM polling", e);
throw e;
} finally {
listener.close();
}
} catch (IOException e) {
LOGGER.log(Level.SEVERE, "Failed to record SCM polling", e);
return false;
}
}
public void save() throws IOException {
if (BulkChange.contains(this)) return;
try {
getConfigFile().write(this);
SaveableListener.fireOnChange(this, getConfigFile());
} catch (IOException e) {
LOGGER.log(Level.WARNING, "Failed to save " + getConfigFile(), e);
}
}
public void load() {
XmlFile file = getConfigFile();
if (file.exists()) {
try {
file.unmarshal(this);
} catch (IOException e) {
LOGGER.log(Level.WARNING, "Failed to load " + file, e);
}
}
properties.setOwner(this);
updateTransientActions();
}
/**
* Run the SCM trigger with additional build actions. Used by SubversionRepositoryStatus to
* trigger a build at a specific revisionn number.
*
* @param additionalActions
* @since 1.375
*/
public void run(Action[] additionalActions) {
if (Hudson.getInstance().isQuietingDown()) {
return; // noop
}
DescriptorImpl d = getDescriptor();
LOGGER.fine("Scheduling a polling for " + job);
if (d.synchronousPolling) {
LOGGER.fine(
"Running the trigger directly without threading, "
+ "as it's already taken care of by Trigger.Cron");
new Runner(additionalActions).run();
} else {
// schedule the polling.
// even if we end up submitting this too many times, that's OK.
// the real exclusion control happens inside Runner.
LOGGER.fine("scheduling the trigger to (asynchronously) run");
d.queue.execute(new Runner(additionalActions));
d.clogCheck();
}
}