+++ /dev/null
-
-/*
- * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-
-package org.opendaylight.controller.configuration.internal;
-
-import java.io.File;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.EnumSet;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-import java.util.concurrent.ConcurrentMap;
-
-import org.opendaylight.controller.clustering.services.CacheConfigException;
-import org.opendaylight.controller.clustering.services.CacheExistException;
-import org.opendaylight.controller.clustering.services.ICacheUpdateAware;
-import org.opendaylight.controller.clustering.services.IClusterGlobalServices;
-import org.opendaylight.controller.clustering.services.IClusterServices;
-import org.opendaylight.controller.configuration.ConfigurationEvent;
-import org.opendaylight.controller.configuration.ConfigurationObject;
-import org.opendaylight.controller.configuration.IConfigurationAware;
-import org.opendaylight.controller.configuration.IConfigurationContainerService;
-import org.opendaylight.controller.configuration.IConfigurationService;
-import org.opendaylight.controller.sal.utils.GlobalConstants;
-import org.opendaylight.controller.sal.utils.IObjectReader;
-import org.opendaylight.controller.sal.utils.ObjectReader;
-import org.opendaylight.controller.sal.utils.ObjectWriter;
-import org.opendaylight.controller.sal.utils.Status;
-import org.opendaylight.controller.sal.utils.StatusCode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * @file ConfigurationImpl.java
- *
- * @brief Backend functionality for all ConfigurationService related tasks.
- *
- */
-
-public class ConfigurationService implements IConfigurationService, ICacheUpdateAware<String, String> {
- private static final Logger logger = LoggerFactory
- .getLogger(ConfigurationService.class);
- public static final String SAVE_EVENT_CACHE = "config.event.save";
- private static final String ROOT = GlobalConstants.STARTUPHOME.toString();
- private IClusterGlobalServices clusterServices;
- private ConcurrentMap<String, String> configEvent;
- private Set<IConfigurationAware> configurationAwareList = Collections
- .synchronizedSet(new HashSet<IConfigurationAware>());
- private ObjectReader objReader;
- private ObjectWriter objWriter;
-
-
- public int getConfigurationAwareListSize() {
- return this.configurationAwareList.size();
- }
-
- public void addConfigurationAware(IConfigurationAware configurationAware) {
- if (!this.configurationAwareList.contains(configurationAware)) {
- this.configurationAwareList.add(configurationAware);
- }
- }
-
- public void removeConfigurationAware(IConfigurationAware configurationAware) {
- this.configurationAwareList.remove(configurationAware);
- }
-
- public void setClusterServices(IClusterGlobalServices i) {
- this.clusterServices = i;
- logger.debug("IClusterServices set");
- }
-
- public void unsetClusterServices(IClusterGlobalServices i) {
- if (this.clusterServices == i) {
- this.clusterServices = null;
- logger.debug("IClusterServices Unset");
- }
- }
-
- public void init() {
- logger.info("ConfigurationService Manager init");
-
- // Create the default startup directory, so that container unaware apps can initiate save
- createContainerDirectory(ROOT + GlobalConstants.DEFAULT.toString());
- }
-
- public void start() {
- allocateCache();
- retrieveCache();
- objReader = new ObjectReader();
- objWriter = new ObjectWriter();
- }
-
- public void destroy() {
- // Clear local states
- this.configurationAwareList.clear();
- }
-
- @Override
- public Status saveConfigurations() {
- if (configEvent != null) {
- configEvent.put(ConfigurationEvent.SAVE.toString(), "");
- }
- return saveConfigurationsInternal();
- }
-
-
- private List<String> getContainerDirectoryList() {
- List<String> containerList = new ArrayList<String>();
- for (IConfigurationAware configurationAware : this.configurationAwareList) {
- if (configurationAware instanceof IConfigurationContainerService) {
- String containerFilePath = ((IConfigurationContainerService)configurationAware).getConfigurationRoot();
- containerList.add(containerFilePath);
- }
- }
- return containerList;
- }
-
- private void createContainerDirectory(IConfigurationAware configurationAware) {
- String containerFilePath = ((IConfigurationContainerService) configurationAware).getConfigurationRoot();
- createContainerDirectory(containerFilePath);
- }
-
- private void createContainerDirectory(String containerFilePath) {
-
- try {
- if (!new File(containerFilePath).exists()) {
- boolean created = new File(containerFilePath).mkdir();
- if (!created) {
- logger.error("Failed to create config directory: {}", containerFilePath);
- }
- }
- } catch (Exception e) {
- logger.error("Failed to create config directory: {} ({})", containerFilePath, e.getMessage());
- }
- }
-
- private void clearStaleContainerDirectories() {
- List<String> activeContainers = getContainerDirectoryList();
- for (File file : new File(ROOT).listFiles()) {
- if (file.isDirectory() && !activeContainers.contains(file.toPath() + File.separator)) {
- logger.trace("Removing directory for container {}", file.getName());
- for (File innerFile : file.listFiles()) {
- innerFile.delete();
- }
- boolean removed = file.delete();
- if (!removed) {
- logger.warn("Failed to remove stale directory: {}", file.getName());
- }
- }
- }
- }
-
-
- private Status saveConfigurationsInternal() {
- boolean success = true;
- for (IConfigurationAware configurationAware : configurationAwareList) {
- if (configurationAware instanceof IConfigurationContainerService) {
- // Create directory for new containers
- createContainerDirectory(configurationAware);
- }
- Status status = configurationAware.saveConfiguration();
- if (!status.isSuccess()) {
- success = false;
- logger.warn("Failed to save config for {}", configurationAware.getClass().getName());
- }
- }
- // Remove startup directories of containers that were removed from
- // the configuration but not saved
- clearStaleContainerDirectories();
-
- if (success) {
- return new Status(StatusCode.SUCCESS);
- } else {
- return new Status(StatusCode.INTERNALERROR, "Failed to Save All Configurations");
- }
- }
-
- @Override
- public void entryCreated(String key, String cacheName,
- boolean originLocal) {
- if (originLocal) {
- return;
- }
- }
-
- @Override
- public void entryUpdated(String key, String new_value,
- String cacheName, boolean originLocal) {
- if (originLocal) {
- return;
- }
- if (key.equals(ConfigurationEvent.SAVE.toString())) {
- saveConfigurationsInternal();
- }
- }
-
- @Override
- public void entryDeleted(String key, String cacheName,
- boolean originLocal) {
- if (originLocal) {
- return;
- }
- }
-
- private void allocateCache() {
- if (this.clusterServices == null) {
- logger.error("uninitialized clusterServices, can't create cache");
- return;
- }
- try {
- this.clusterServices.createCache(SAVE_EVENT_CACHE,
- EnumSet.of(IClusterServices.cacheMode.TRANSACTIONAL));
- } catch (CacheConfigException cce) {
- logger.debug("Error creating ConfigurationService cache ", cce);
- } catch (CacheExistException cce) {
- logger.debug("ConfigurationService Cache already exists, destroy and recreate ", cce);
- }
- }
-
- @SuppressWarnings({ "unchecked" })
- private void retrieveCache() {
- if (this.clusterServices == null) {
- logger.error("uninitialized clusterServices, can't retrieve cache");
- return;
- }
- configEvent = (ConcurrentMap<String, String>) this.clusterServices.getCache(SAVE_EVENT_CACHE);
- if (configEvent == null) {
- logger.error("Failed to retrieve configuration Cache");
- }
- }
-
- @Override
- public Status persistConfiguration(List<ConfigurationObject> config, String fileName) {
- String destination = String.format("%s%s", ROOT, fileName);
- return objWriter.write(config, destination);
- }
-
- @Override
- public List<ConfigurationObject> retrieveConfiguration(IObjectReader reader, String fileName) {
- if (!clusterServices.amICoordinator()) {
- return Collections.emptyList();
- }
- String source = String.format("%s%s", ROOT, fileName);
- Object obj = objReader.read(reader, source);
- if (obj == null) {
- return Collections.<ConfigurationObject> emptyList();
- }
- if (obj instanceof ConcurrentMap) {
- return new ArrayList<ConfigurationObject>(((ConcurrentMap)obj).values());
- }
- return (List<ConfigurationObject>) obj;
- }
-}
Code Review / controller.git / blobdiff