| /* |
| * Copyright 2015-present Open Networking Laboratory |
| * |
| * Licensed 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.onosproject.cfg.impl; |
| |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.onosproject.cfg.ComponentConfigService; |
| import org.slf4j.Logger; |
| |
| import java.io.File; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Component responsible for automatically loading configuration file from |
| * configuration directory. |
| */ |
| @Component(immediate = true) |
| public class ComponentConfigLoader { |
| |
| private static final String CFG_JSON = "../config/component-cfg.json"; |
| static File cfgFile = new File(CFG_JSON); |
| |
| private final Logger log = getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected ComponentConfigService configService; |
| |
| private ObjectNode root; |
| |
| @Activate |
| protected void activate() { |
| this.loadConfigs(); |
| log.info("Started"); |
| } |
| |
| // Loads the configurations for each component from the file in |
| // ../config/component-cfg.json, using the preSetProperty method. |
| private void loadConfigs() { |
| try { |
| if (cfgFile.exists()) { |
| root = (ObjectNode) new ObjectMapper().readTree(cfgFile); |
| root.fieldNames(). |
| forEachRemaining(component -> root.path(component).fieldNames() |
| .forEachRemaining(k -> configService |
| .preSetProperty(component, k, |
| root.path(component).path(k) |
| .asText()))); |
| log.info("Loaded initial component configuration from {}", cfgFile); |
| } |
| } catch (Exception e) { |
| log.warn("Unable to load initial component configuration from {}", |
| cfgFile, e); |
| } |
| } |
| } |