| /* |
| * 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 com.google.common.collect.Maps; |
| import io.grpc.ManagedChannel; |
| import io.grpc.ManagedChannelBuilder; |
| import org.onosproject.openstacktelemetry.api.GrpcTelemetryAdminService; |
| import org.onosproject.openstacktelemetry.api.OpenstackTelemetryService; |
| import org.onosproject.openstacktelemetry.api.TelemetryConfigService; |
| import org.onosproject.openstacktelemetry.api.config.GrpcTelemetryConfig; |
| import org.onosproject.openstacktelemetry.api.config.TelemetryConfig; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| 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; |
| |
| import java.util.Map; |
| |
| import static org.onosproject.openstacktelemetry.api.Constants.GRPC_SCHEME; |
| import static org.onosproject.openstacktelemetry.api.config.TelemetryConfig.ConfigType.GRPC; |
| import static org.onosproject.openstacktelemetry.api.config.TelemetryConfig.Status.ENABLED; |
| import static org.onosproject.openstacktelemetry.config.DefaultGrpcTelemetryConfig.fromTelemetryConfig; |
| import static org.onosproject.openstacktelemetry.util.OpenstackTelemetryUtil.testConnectivity; |
| |
| /** |
| * gRPC telemetry manager. |
| */ |
| @Component(immediate = true, service = GrpcTelemetryAdminService.class) |
| public class GrpcTelemetryManager implements GrpcTelemetryAdminService { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected OpenstackTelemetryService openstackTelemetryService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected TelemetryConfigService telemetryConfigService; |
| |
| private Map<String, ManagedChannel> channels = Maps.newConcurrentMap(); |
| |
| @Activate |
| protected void activate() { |
| |
| openstackTelemetryService.addTelemetryService(this); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| stopAll(); |
| |
| openstackTelemetryService.removeTelemetryService(this); |
| |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public boolean start(String name) { |
| boolean success = false; |
| TelemetryConfig config = telemetryConfigService.getConfig(name); |
| GrpcTelemetryConfig grpcConfig = fromTelemetryConfig(config); |
| |
| if (grpcConfig != null && !config.name().equals(GRPC_SCHEME) && |
| config.status() == ENABLED) { |
| ManagedChannel channel = ManagedChannelBuilder |
| .forAddress(grpcConfig.address(), grpcConfig.port()) |
| .maxInboundMessageSize(grpcConfig.maxInboundMsgSize()) |
| .usePlaintext(grpcConfig.usePlaintext()) |
| .build(); |
| |
| if (testConnectivity(grpcConfig.address(), grpcConfig.port())) { |
| channels.put(name, channel); |
| success = true; |
| } else { |
| log.warn("Unable to connect to {}:{}, " + |
| "please check the connectivity manually", |
| grpcConfig.address(), grpcConfig.port()); |
| } |
| } |
| return success; |
| } |
| |
| @Override |
| public void stop(String name) { |
| ManagedChannel channel = channels.get(name); |
| |
| if (channel != null) { |
| channel.shutdown(); |
| channels.remove(name); |
| } |
| } |
| |
| @Override |
| public boolean restart(String name) { |
| stop(name); |
| return start(name); |
| } |
| |
| @Override |
| public void startAll() { |
| telemetryConfigService.getConfigsByType(GRPC).forEach(c -> start(c.name())); |
| log.info("gRPC producer has Started"); |
| } |
| |
| @Override |
| public void stopAll() { |
| channels.values().forEach(ManagedChannel::shutdown); |
| log.info("gRPC producer has Stopped"); |
| } |
| |
| @Override |
| public void restartAll() { |
| stopAll(); |
| startAll(); |
| } |
| |
| @Override |
| public Object publish(Object record) { |
| // TODO: need to find a way to invoke gRPC endpoint using channel |
| |
| if (channels.isEmpty()) { |
| log.debug("gRPC telemetry service has not been enabled!"); |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public boolean isRunning() { |
| return !channels.isEmpty(); |
| } |
| } |