3 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
5 * This program and the accompanying materials are made available under the
6 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
7 * and is available at http://www.eclipse.org/legal/epl-v10.html
10 package org.opendaylight.controller.configuration.internal;
12 import java.util.Collections;
13 import java.util.EnumSet;
14 import java.util.HashSet;
16 import java.util.concurrent.ConcurrentMap;
18 import org.opendaylight.controller.clustering.services.CacheConfigException;
19 import org.opendaylight.controller.clustering.services.CacheExistException;
20 import org.opendaylight.controller.clustering.services.ICacheUpdateAware;
21 import org.opendaylight.controller.clustering.services.IClusterGlobalServices;
22 import org.opendaylight.controller.clustering.services.IClusterServices;
23 import org.opendaylight.controller.configuration.ConfigurationEvent;
24 import org.opendaylight.controller.configuration.IConfigurationAware;
25 import org.opendaylight.controller.configuration.IConfigurationService;
26 import org.opendaylight.controller.sal.utils.StatusCode;
27 import org.opendaylight.controller.sal.utils.Status;
28 import org.slf4j.Logger;
29 import org.slf4j.LoggerFactory;
32 * @file ConfigurationImpl.java
34 * @brief Backend functionality for all ConfigurationService related tasks.
38 public class ConfigurationService implements IConfigurationService, ICacheUpdateAware<ConfigurationEvent, String> {
39 private static final Logger logger = LoggerFactory
40 .getLogger(ConfigurationService.class);
41 public static final String SAVE_EVENT_CACHE = "config.event.save";
42 private IClusterGlobalServices clusterServices;
43 private ConcurrentMap <ConfigurationEvent, String> configEvent;
44 private Set<IConfigurationAware> configurationAwareList = Collections
45 .synchronizedSet(new HashSet<IConfigurationAware>());
48 public int getConfigurationAwareListSize() {
49 return this.configurationAwareList.size();
52 public void addConfigurationAware(IConfigurationAware configurationAware) {
53 if (!this.configurationAwareList.contains(configurationAware)) {
54 this.configurationAwareList.add(configurationAware);
58 public void removeConfigurationAware(IConfigurationAware configurationAware) {
59 this.configurationAwareList.remove(configurationAware);
62 public void setClusterServices(IClusterGlobalServices i) {
63 this.clusterServices = i;
64 logger.debug("IClusterServices set");
67 public void unsetClusterServices(IClusterGlobalServices i) {
68 if (this.clusterServices == i) {
69 this.clusterServices = null;
70 logger.debug("IClusterServices Unset");
75 logger.info("ConfigurationService Manager init");
83 public void destroy() {
85 this.configurationAwareList.clear();
89 public Status saveConfigurations() {
90 if (configEvent != null) {
91 configEvent.put(ConfigurationEvent.SAVE, "");
93 return saveConfigurationsInternal();
96 private Status saveConfigurationsInternal() {
97 boolean success = true;
98 for (IConfigurationAware configurationAware : configurationAwareList) {
99 Status status = configurationAware.saveConfiguration();
100 if (!status.isSuccess()) {
102 logger.warn("Failed to save config for {}",
103 configurationAware.getClass().getName());
107 return new Status(StatusCode.SUCCESS);
109 return new Status(StatusCode.INTERNALERROR,
110 "Failed to Save All Configurations");
115 public void entryCreated(ConfigurationEvent key, String cacheName,
116 boolean originLocal) {
123 public void entryUpdated(ConfigurationEvent key, String new_value,
124 String cacheName, boolean originLocal) {
128 if (key == ConfigurationEvent.SAVE) {
129 saveConfigurationsInternal();
134 public void entryDeleted(ConfigurationEvent key, String cacheName,
135 boolean originLocal) {
141 private void allocateCache() {
142 if (this.clusterServices == null) {
143 logger.error("uninitialized clusterServices, can't create cache");
147 this.clusterServices.createCache(SAVE_EVENT_CACHE,
148 EnumSet.of(IClusterServices.cacheMode.TRANSACTIONAL));
149 } catch (CacheConfigException cce) {
150 logger.debug("Error creating ConfigurationService cache ", cce);
151 } catch (CacheExistException cce) {
152 logger.debug("ConfigurationService Cache already exists, destroy and recreate ", cce);
156 @SuppressWarnings({ "unchecked" })
157 private void retrieveCache() {
158 if (this.clusterServices == null) {
159 logger.error("uninitialized clusterServices, can't retrieve cache");
162 configEvent = (ConcurrentMap<ConfigurationEvent, String>) this.clusterServices.getCache(SAVE_EVENT_CACHE);
163 if (configEvent == null) {
164 logger.error("Failed to retrieve configuration Cache");