| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.jackrabbit.oak.run.osgi; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import com.google.common.base.Charsets; |
| import com.google.common.base.Splitter; |
| import com.google.common.collect.Maps; |
| import com.google.common.collect.Sets; |
| import com.google.common.io.Files; |
| import org.json.simple.JSONObject; |
| import org.json.simple.JSONValue; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.service.cm.ConfigurationAdmin; |
| import org.osgi.util.tracker.ServiceTracker; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Installs config obtained from JSON Config file or passed as part of |
| * startup |
| */ |
| class ConfigTracker extends ServiceTracker<ConfigurationAdmin, ConfigurationAdmin> { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| private final Map config; |
| private final BundleContext bundleContext; |
| |
| public ConfigTracker(Map config, BundleContext bundleContext) { |
| super(bundleContext, ConfigurationAdmin.class.getName(), null); |
| this.config = config; |
| this.bundleContext = bundleContext; |
| open(); |
| } |
| |
| @Override |
| public ConfigurationAdmin addingService(ServiceReference<ConfigurationAdmin> reference) { |
| ConfigurationAdmin cm = super.addingService(reference); |
| try { |
| synchronizeConfigs(new ConfigInstaller(cm, bundleContext)); |
| } catch (Exception e) { |
| log.error("Error occurred while installing configs", e); |
| throw new RuntimeException(e); |
| } |
| return cm; |
| } |
| |
| /** |
| * Synchronizes the configs. All config added by this class is also kept in sync with re runs |
| * i.e. if a config was added in first run and say later removed then that would also be removed |
| * from the ConfigurationAdmin |
| */ |
| private void synchronizeConfigs(ConfigInstaller configInstaller) throws Exception { |
| Set<String> existingPids = configInstaller.determineExistingConfigs(); |
| |
| Map<String, Map<String, Object>> configs = Maps.newHashMap(); |
| |
| Map<String, Map<String, Object>> configFromFile = |
| parseJSONConfig((String) config.get(OakOSGiRepositoryFactory.REPOSITORY_CONFIG_FILE)); |
| configs.putAll(configFromFile); |
| |
| @SuppressWarnings("unchecked") |
| Map<String, Map<String, Object>> runtimeConfig = |
| (Map<String, Map<String, Object>>) config.get(OakOSGiRepositoryFactory.REPOSITORY_CONFIG); |
| if (runtimeConfig != null) { |
| configs.putAll(runtimeConfig); |
| } |
| |
| configInstaller.installConfigs(configs); |
| //Find out the config *installed by ConfigInstaller* and are not present in |
| //current config files. Such configs must be remove. Note it does not lead to |
| //removal of configs added by using ConfigAdmin directly, say using WebConsole |
| //ui |
| Set<String> pidsToBeRemoved = Sets.difference(existingPids, configs.keySet()); |
| configInstaller.removeConfigs(pidsToBeRemoved); |
| } |
| |
| @SuppressWarnings("unchecked") |
| private Map<String, Map<String, Object>> parseJSONConfig(String jsonFilePath) throws IOException { |
| Map<String, Map<String, Object>> configs = Maps.newHashMap(); |
| if (jsonFilePath == null) { |
| return configs; |
| } |
| |
| List<String> files = Splitter.on(',').trimResults().omitEmptyStrings().splitToList(jsonFilePath); |
| for (String filePath : files) { |
| File jsonFile = new File(filePath); |
| if (!jsonFile.exists()) { |
| log.warn("No file found at path {}. Ignoring the file entry", jsonFile.getAbsolutePath()); |
| continue; |
| } |
| |
| String content = Files.toString(jsonFile, Charsets.UTF_8); |
| JSONObject json = (JSONObject) JSONValue.parse(content); |
| configs.putAll(json); |
| } |
| |
| return configs; |
| } |
| } |