1 /* 2 * Copyright 2019 The gRPC Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package io.grpc.alts; 18 19 import io.grpc.ForwardingChannelBuilder; 20 import io.grpc.ManagedChannelBuilder; 21 import io.grpc.internal.GrpcUtil; 22 import io.grpc.netty.NettyChannelBuilder; 23 24 /** 25 * {@code ManagedChannelBuilder} for Google Compute Engine. This class sets up a secure channel 26 * using ALTS if applicable and using TLS as fallback. 27 */ 28 public final class ComputeEngineChannelBuilder 29 extends ForwardingChannelBuilder<ComputeEngineChannelBuilder> { 30 31 private final NettyChannelBuilder delegate; 32 ComputeEngineChannelBuilder(String target)33 private ComputeEngineChannelBuilder(String target) { 34 delegate = NettyChannelBuilder.forTarget(target, ComputeEngineChannelCredentials.create()); 35 } 36 37 /** "Overrides" the static method in {@link ManagedChannelBuilder}. */ forTarget(String target)38 public static final ComputeEngineChannelBuilder forTarget(String target) { 39 return new ComputeEngineChannelBuilder(target); 40 } 41 42 /** "Overrides" the static method in {@link ManagedChannelBuilder}. */ forAddress(String name, int port)43 public static ComputeEngineChannelBuilder forAddress(String name, int port) { 44 return forTarget(GrpcUtil.authorityFromHostAndPort(name, port)); 45 } 46 47 @Override delegate()48 protected NettyChannelBuilder delegate() { 49 return delegate; 50 } 51 } 52