forked from grpc/grpc-java
/
XdsServerCredentials.java
45 lines (40 loc) · 1.68 KB
/
XdsServerCredentials.java
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/*
* 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.sds.SdsProtocolNegotiators;
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/7621")
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(
SdsProtocolNegotiators.serverProtocolNegotiatorFactory(fallbackNegotiator));
}
}