| /* |
| * Copyright 2018-present Open Networking Foundation |
| * |
| * 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.openstacktelemetry.impl; |
| |
| import org.onosproject.openstacktelemetry.api.TelemetryConfigAdminService; |
| import org.onosproject.openstacktelemetry.api.TelemetryConfigProvider; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Deactivate; |
| import org.osgi.service.component.annotations.Reference; |
| import org.osgi.service.component.annotations.ReferenceCardinality; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Abstract bootstrapper for loading and registering telemetry configurations |
| * that are independent from the default telemetry configurations. |
| */ |
| public abstract class AbstractTelemetryConfigLoader { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private TelemetryConfigProvider provider; |
| private final String path; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected TelemetryConfigAdminService configAdminService; |
| |
| /** |
| * Creates a new loader for resource with the specified path. |
| * |
| * @param path configurations definition XML resource path |
| */ |
| protected AbstractTelemetryConfigLoader(String path) { |
| this.path = path; |
| } |
| |
| @Activate |
| protected void activate() { |
| try { |
| provider = new XmlTelemetryConfigLoader().loadTelemetryConfigs( |
| getClass().getResourceAsStream(path)); |
| configAdminService.registerProvider(provider); |
| } catch (Exception e) { |
| log.error("Unable to load {} telemetry configuration definitions", path, e); |
| } |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| configAdminService.unregisterProvider(provider); |
| log.info("Stopped"); |
| } |
| } |