- private boolean isInstalled(Feature feature) {
- List<Feature> installedFeatures = Arrays.asList(featuresService.listInstalledFeatures());
- return installedFeatures.contains(feature);
+ private boolean isInstalled(final Feature feature) {
+ for (int retries = 0; retries < MAX_RETRIES; retries++) {
+ try {
+ List<Feature> installedFeatures = Arrays.asList(featuresService.listInstalledFeatures());
+ if(installedFeatures.contains(feature)) {
+ return true;
+ } else {
+ LOG.warn("Karaf featuresService.listInstalledFeatures() has not yet finished installing feature (retry {}) {} {}",retries,feature.getName(),feature.getVersion());
+ }
+ } catch (Exception e) {
+ LOG.warn("Karaf featuresService.listInstalledFeatures() has thrown an exception, retry {}", retries, e);
+ }
+ try {
+ Thread.sleep(RETRY_PAUSE_MILLIS);
+ } catch (InterruptedException e1) {
+ throw new IllegalStateException(e1);
+ }
+ }
+ LOG.error("Giving up (after {} retries) on Karaf featuresService.listInstalledFeatures() which has not yet finished installing feature {} {}",MAX_RETRIES,feature.getName(),feature.getVersion());
+ return false;