import org.opendaylight.controller.config.yang.store.api.YangStoreException;
import org.opendaylight.controller.config.yang.store.api.YangStoreService;
import org.opendaylight.controller.config.yang.store.api.YangStoreSnapshot;
+import org.opendaylight.controller.config.yangjmxgenerator.ModuleMXBeanEntry;
+import org.opendaylight.yangtools.yang.model.api.Module;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleEvent;
import java.util.Collections;
import java.util.Enumeration;
import java.util.List;
+import java.util.Map;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
proposedNewState.putAll(bundle, addedURLs);
Preconditions.checkArgument(addedURLs.size() > 0, "No change can occur when no URLs are changed");
- boolean success;
- String failureReason = null;
+
try(YangStoreSnapshotImpl snapshot = createSnapshot(mbeParser, proposedNewState)) {
- updateCache(snapshot);
- success = true;
+ onSnapshotSuccess(proposedNewState, snapshot);
} catch(YangStoreException e) {
- failureReason = e.toString();
- success = false;
- }
- if (success){
- // consistent state
- // merge into
- consistentBundlesToYangURLs.clear();
- consistentBundlesToYangURLs.putAll(proposedNewState);
- inconsistentBundlesToYangURLs.clear();
-
- logger.info("Yang store updated to new consistent state containing {} yang files", consistentBundlesToYangURLs.size());
- logger.trace("Yang store updated to new consistent state containing {}", consistentBundlesToYangURLs);
- } else {
- // inconsistent state
- logger.debug("Yang store is falling back on last consistent state containing {}, inconsistent yang files {}, reason {}",
- consistentBundlesToYangURLs, inconsistentBundlesToYangURLs, failureReason);
- logger.warn("Yang store is falling back on last consistent state containing {} files, inconsistent yang files size is {}, reason {}",
- consistentBundlesToYangURLs.size(), inconsistentBundlesToYangURLs.size(), failureReason);
- inconsistentBundlesToYangURLs.putAll(bundle, addedURLs);
+ onSnapshotFailure(bundle, addedURLs, e);
}
}
}
return bundle;
}
- private void updateCache(YangStoreSnapshotImpl snapshot) {
+ private synchronized void onSnapshotFailure(Bundle bundle, List<URL> addedURLs, Exception failureReason) {
+ // inconsistent state
+ inconsistentBundlesToYangURLs.putAll(bundle, addedURLs);
+
+ logger.debug("Yang store is falling back on last consistent state containing {}, inconsistent yang files {}",
+ consistentBundlesToYangURLs, inconsistentBundlesToYangURLs, failureReason);
+ logger.warn("Yang store is falling back on last consistent state containing {} files, inconsistent yang files size is {}, reason {}",
+ consistentBundlesToYangURLs.size(), inconsistentBundlesToYangURLs.size(), failureReason.toString());
+ cache.setInconsistentURLsForReporting(inconsistentBundlesToYangURLs.values());
+ }
+
+ private synchronized void onSnapshotSuccess(Multimap<Bundle, URL> proposedNewState, YangStoreSnapshotImpl snapshot) {
+ // consistent state
+ // merge into
+ consistentBundlesToYangURLs.clear();
+ consistentBundlesToYangURLs.putAll(proposedNewState);
+ inconsistentBundlesToYangURLs.clear();
+
+ updateCache(snapshot);
+ cache.setInconsistentURLsForReporting(Collections.<URL> emptySet());
+ logger.info("Yang store updated to new consistent state containing {} yang files", consistentBundlesToYangURLs.size());
+ logger.debug("Yang store updated to new consistent state containing {}", consistentBundlesToYangURLs);
+ }
+
+ private synchronized void updateCache(YangStoreSnapshotImpl snapshot) {
cache.cacheYangStore(consistentBundlesToYangURLs, snapshot);
}
*/
@Override
public synchronized void removedBundle(Bundle bundle, BundleEvent event, Object object) {
+ logger.debug("Removed bundle {} {} {}", bundle, event, object);
inconsistentBundlesToYangURLs.removeAll(bundle);
consistentBundlesToYangURLs.removeAll(bundle);
}
throws YangStoreException {
Optional<YangStoreSnapshot> yangStoreOpt = cache.getSnapshotIfPossible(consistentBundlesToYangURLs);
if (yangStoreOpt.isPresent()) {
- logger.trace("Returning cached yang store {}", yangStoreOpt.get());
+ logger.debug("Returning cached yang store {}", yangStoreOpt.get());
return yangStoreOpt.get();
}
+
YangStoreSnapshotImpl snapshot = createSnapshot(mbeParser, consistentBundlesToYangURLs);
updateCache(snapshot);
return snapshot;
}
class YangStoreCache {
+ private static final Logger logger = LoggerFactory.getLogger(YangStoreCache.class);
+
+ @GuardedBy("this")
+ private Set<URL> cachedUrls = null;
@GuardedBy("this")
- private Set<URL> cachedUrls = Collections.emptySet();
+ private Optional<YangStoreSnapshot> cachedYangStoreSnapshot = getInitialSnapshot();
@GuardedBy("this")
- private Optional<YangStoreSnapshotImpl> cachedYangStoreSnapshot = Optional.absent();
+ private Collection<URL> inconsistentURLsForReporting = Collections.emptySet();
synchronized Optional<YangStoreSnapshot> getSnapshotIfPossible(Multimap<Bundle, URL> bundlesToYangURLs) {
Set<URL> urls = setFromMultimapValues(bundlesToYangURLs);
- if (cachedUrls != null && cachedUrls.equals(urls)) {
+
+ if (cachedUrls==null || cachedUrls.equals(urls)) {
Preconditions.checkState(cachedYangStoreSnapshot.isPresent());
YangStoreSnapshot freshSnapshot = new YangStoreSnapshotImpl(cachedYangStoreSnapshot.get());
+ if (inconsistentURLsForReporting.size() > 0){
+ logger.warn("Some yang URLs are ignored: {}", inconsistentURLsForReporting);
+ }
return Optional.of(freshSnapshot);
}
+
return Optional.absent();
}
}
synchronized void cacheYangStore(Multimap<Bundle, URL> urls,
- YangStoreSnapshotImpl yangStoreSnapshot) {
+ YangStoreSnapshot yangStoreSnapshot) {
this.cachedUrls = setFromMultimapValues(urls);
this.cachedYangStoreSnapshot = Optional.of(yangStoreSnapshot);
}
cachedYangStoreSnapshot = Optional.absent();
}
}
+
+ public synchronized void setInconsistentURLsForReporting(Collection<URL> urls){
+ inconsistentURLsForReporting = urls;
+ }
+
+ private Optional<YangStoreSnapshot> getInitialSnapshot() {
+ YangStoreSnapshot initialSnapshot = new YangStoreSnapshot() {
+ @Override
+ public Map<String, Map<String, ModuleMXBeanEntry>> getModuleMXBeanEntryMap() {
+ return Collections.emptyMap();
+ }
+
+ @Override
+ public Map<String, Map.Entry<Module, String>> getModuleMap() {
+ return Collections.emptyMap();
+ }
+
+ @Override
+ public int countModuleMXBeanEntries() {
+ return 0;
+ }
+
+ @Override
+ public void close() {
+ }
+ };
+ return Optional.of(initialSnapshot);
+ }
}