2 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.controller.config.manager.impl.osgi;
10 import org.opendaylight.controller.config.api.ConflictingVersionException;
11 import org.opendaylight.controller.config.api.jmx.CommitStatus;
12 import org.opendaylight.controller.config.manager.impl.ConfigRegistryImpl;
13 import org.opendaylight.controller.config.spi.ModuleFactory;
14 import org.osgi.framework.ServiceReference;
15 import org.osgi.util.tracker.ServiceTrackerCustomizer;
16 import org.slf4j.Logger;
17 import org.slf4j.LoggerFactory;
19 import javax.management.ObjectName;
22 * Every time factory is added or removed, blank transaction is triggered to handle
23 * {@link org.opendaylight.controller.config.spi.ModuleFactory#getDefaultModules(org.opendaylight.controller.config.api.DependencyResolverFactory, org.osgi.framework.BundleContext)}
26 public class BlankTransactionServiceTracker implements ServiceTrackerCustomizer<ModuleFactory, Object> {
27 private static final Logger logger = LoggerFactory.getLogger(BlankTransactionServiceTracker.class);
29 private final ConfigRegistryImpl configRegistry;
31 public BlankTransactionServiceTracker(ConfigRegistryImpl configRegistry) {
32 this.configRegistry = configRegistry;
36 public Object addingService(ServiceReference<ModuleFactory> moduleFactoryServiceReference) {
41 private synchronized void blankTransaction() {
42 // race condition check: config-persister might push new configuration while server is starting up.
43 ConflictingVersionException lastException = null;
44 for (int i = 0; i < 10; i++) {
47 ObjectName tx = configRegistry.beginConfig();
48 CommitStatus commitStatus = configRegistry.commitConfig(tx);
49 logger.debug("Committed blank transaction with status {}", commitStatus);
51 } catch (ConflictingVersionException e) {
55 } catch (InterruptedException interruptedException) {
56 Thread.currentThread().interrupt();
57 throw new IllegalStateException(interruptedException);
65 public void modifiedService(ServiceReference <ModuleFactory> moduleFactoryServiceReference, Object o) {
70 public void removedService(ServiceReference<ModuleFactory> moduleFactoryServiceReference, Object o) {