| /* |
| * Copyright 2021 The gRPC Authors |
| * |
| * 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 io.grpc.services; |
| |
| import io.grpc.BindableService; |
| import io.grpc.ExperimentalApi; |
| import io.grpc.ServerServiceDefinition; |
| import io.grpc.protobuf.services.ChannelzService; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| import javax.annotation.concurrent.ThreadSafe; |
| |
| /** |
| * Admin Interface provides a class of services for exposing the overall state of gRPC |
| * activity in a given binary. It aims to be a convenient API that provides available admin |
| * services. |
| */ |
| @ExperimentalApi("https://github.com/grpc/grpc-java/issues/7929") |
| @ThreadSafe |
| public final class AdminInterface { |
| private static final int DEFAULT_CHANNELZ_MAX_PAGE_SIZE = 100; |
| private static final Logger logger = Logger.getLogger(AdminInterface.class.getName()); |
| |
| // Do not instantiate. |
| private AdminInterface() {} |
| |
| /** |
| * Returns a list of gRPC's built-in admin services. |
| * |
| * @return list of standard admin services |
| */ |
| public static List<ServerServiceDefinition> getStandardServices() { |
| List<ServerServiceDefinition> services = new ArrayList<>(); |
| services.add(ChannelzService.newInstance(DEFAULT_CHANNELZ_MAX_PAGE_SIZE).bindService()); |
| BindableService csds = null; |
| try { |
| Class<?> clazz = Class.forName("io.grpc.xds.CsdsService"); |
| Method m = clazz.getMethod("newInstance"); |
| csds = (BindableService) m.invoke(null); |
| } catch (ClassNotFoundException e) { |
| logger.log(Level.FINE, "Unable to find CSDS service", e); |
| } catch (NoSuchMethodException e) { |
| logger.log(Level.FINE, "Unable to load CSDS service", e); |
| } catch (IllegalAccessException e) { |
| logger.log(Level.FINE, "Unable to load CSDS service", e); |
| } catch (InvocationTargetException e) { |
| logger.log(Level.FINE, "Unable to load CSDS service", e); |
| } |
| if (csds != null) { |
| services.add(csds.bindService()); |
| } |
| return Collections.unmodifiableList(services); |
| } |
| } |