Examples with SchemaSourceProvider org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceProvider used on opensource projects

Example 1 with SchemaSourceProvider

use of org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceProvider in project controller by opendaylight.

the class YangStoreActivator method start.

@Override
@SuppressWarnings("checkstyle:hiddenField")
public void start(final BundleContext context) throws Exception {
    LOG.debug("ConfigPersister starting");
    this.context = context;
    final ServiceTrackerCustomizer<SchemaContextProvider, YangStoreService> schemaServiceTrackerCustomizer = new ServiceTrackerCustomizer<SchemaContextProvider, YangStoreService>() {

        private final AtomicBoolean alreadyStarted = new AtomicBoolean(false);

        @Override
        public YangStoreService addingService(final ServiceReference<SchemaContextProvider> reference) {
            LOG.debug("Got addingService(SchemaContextProvider) event");
            if (reference.getProperty(SchemaSourceProvider.class.getName()) == null && reference.getProperty(BindingRuntimeContext.class.getName()) == null) {
                LOG.debug("SchemaContextProvider not from config-manager. Ignoring");
                return null;
            }
            // Yang store service should not be registered multiple times
            if (!this.alreadyStarted.compareAndSet(false, true)) {
                LOG.warn("Starting yang store service multiple times. Received new service {}", reference);
                throw new RuntimeException("Starting yang store service multiple times");
            }
            final SchemaContextProvider schemaContextProvider = reference.getBundle().getBundleContext().getService(reference);
            final Object sourceProvider = Preconditions.checkNotNull(reference.getProperty(SchemaSourceProvider.class.getName()), "Source provider not found");
            Preconditions.checkArgument(sourceProvider instanceof SchemaSourceProvider);
            // TODO avoid cast
            final YangStoreService yangStoreService = new YangStoreService(schemaContextProvider, (SchemaSourceProvider<YangTextSchemaSource>) sourceProvider);
            final BindingRuntimeContext runtimeContext = (BindingRuntimeContext) reference.getProperty(BindingRuntimeContext.class.getName());
            LOG.debug("BindingRuntimeContext retrieved as {}", runtimeContext);
            if (runtimeContext != null) {
                yangStoreService.refresh(runtimeContext);
            }
            YangStoreActivator.this.yangStoreServiceServiceRegistration = context.registerService(YangStoreService.class, yangStoreService, new Hashtable<>());
            YangStoreActivator.this.configRegistryLookup = new ConfigRegistryLookupThread(yangStoreService);
            YangStoreActivator.this.configRegistryLookup.start();
            return yangStoreService;
        }

        @Override
        public void modifiedService(final ServiceReference<SchemaContextProvider> reference, final YangStoreService service) {
            if (service == null) {
                return;
            }
            LOG.debug("Got modifiedService(SchemaContextProvider) event");
            final BindingRuntimeContext runtimeContext = (BindingRuntimeContext) reference.getProperty(BindingRuntimeContext.class.getName());
            LOG.debug("BindingRuntimeContext retrieved as {}", runtimeContext);
            service.refresh(runtimeContext);
        }

        @Override
        public void removedService(final ServiceReference<SchemaContextProvider> reference, final YangStoreService service) {
            if (service == null) {
                return;
            }
            LOG.debug("Got removedService(SchemaContextProvider) event");
            this.alreadyStarted.set(false);
            YangStoreActivator.this.configRegistryLookup.interrupt();
            YangStoreActivator.this.yangStoreServiceServiceRegistration.unregister();
            YangStoreActivator.this.yangStoreServiceServiceRegistration = null;
        }
    };
    final ServiceTracker<SchemaContextProvider, YangStoreService> schemaContextProviderServiceTracker = new ServiceTracker<>(context, SchemaContextProvider.class, schemaServiceTrackerCustomizer);
    schemaContextProviderServiceTracker.open();
}