| /* |
| * Copyright 2020 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.xds; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import io.grpc.ExperimentalApi; |
| import io.grpc.ServerCredentials; |
| import io.grpc.netty.InternalNettyServerCredentials; |
| import io.grpc.netty.InternalProtocolNegotiator; |
| import io.grpc.xds.internal.security.SecurityProtocolNegotiators; |
| |
| @ExperimentalApi("https://github.com/grpc/grpc-java/issues/7514") |
| public class XdsServerCredentials { |
| private XdsServerCredentials() {} // prevent instantiation |
| |
| /** |
| * Creates credentials to be configured by xDS, falling back to other credentials if no |
| * TLS configuration is provided by xDS. |
| * |
| * @param fallback Credentials to fall back to. |
| * |
| * @throws IllegalArgumentException if fallback is unable to be used |
| */ |
| public static ServerCredentials create(ServerCredentials fallback) { |
| InternalProtocolNegotiator.ServerFactory fallbackNegotiator = |
| InternalNettyServerCredentials.toNegotiator(checkNotNull(fallback, "fallback")); |
| return InternalNettyServerCredentials.create( |
| SecurityProtocolNegotiators.serverProtocolNegotiatorFactory(fallbackNegotiator)); |
| } |
| } |