void openServices() {
BundleContext context = JobActivator.getContext();
if (context == null) {
if (JobManager.DEBUG)
JobMessages.message("JobsOSGiUtils called before plugin started"); // $NON-NLS-1$
return;
}
debugTracker = new ServiceTracker(context, DebugOptions.class.getName(), null);
debugTracker.open();
bundleTracker = new ServiceTracker(context, PackageAdmin.class.getName(), null);
bundleTracker.open();
}
/**
* Calculates whether the job plugin should set worker threads to be daemon threads. When workers
* are daemon threads, the job plugin does not need to be explicitly shut down because the VM can
* exit while workers are still alive.
*
* @return <code>true</code> if all worker threads should be daemon threads, and <code>false
* </code> otherwise.
*/
boolean useDaemonThreads() {
BundleContext context = JobActivator.getContext();
if (context == null) {
// we are running stand-alone, so consult global system property
String value = System.getProperty(IJobManager.PROP_USE_DAEMON_THREADS);
// default to use daemon threads if property is absent
if (value == null) return true;
return "true".equalsIgnoreCase(value); // $NON-NLS-1$
}
// only use daemon threads if the property is defined
final String value = context.getProperty(IJobManager.PROP_USE_DAEMON_THREADS);
// if value is absent, don't use daemon threads to maintain legacy behaviour
if (value == null) return false;
return "true".equalsIgnoreCase(value); // $NON-NLS-1$
}