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// Copyright 2021 The Pigweed 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
//
// https://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 dev.pigweed.pw_rpc;
import com.google.common.collect.ImmutableMap;
import com.google.protobuf.MessageLite;
import java.util.Arrays;
import java.util.stream.Collectors;
/** Represents an RPC service: a collection of related methods. */
public class Service {
private final String name;
private final int id;
private final ImmutableMap<Integer, Method> methods;
public Service(String name, Method.Builder... methodBuilders) {
this.name = name;
this.id = Ids.calculate(name);
Arrays.stream(methodBuilders).forEach(m -> m.setService(this));
this.methods = ImmutableMap.copyOf(Arrays.stream(methodBuilders)
.map(Method.Builder::build)
.collect(Collectors.toMap(Method::id, m -> m)));
}
public String name() {
return name;
}
int id() {
return id;
}
public ImmutableMap<Integer, Method> methods() {
return methods;
}
public final Method method(String name) {
return methods().get(Ids.calculate(name));
}
@Override
public final String toString() {
return name();
}
public static Method.Builder unaryMethod(
String name, Class<? extends MessageLite> request, Class<? extends MessageLite> response) {
return Method.builder()
.setType(Method.Type.UNARY)
.setName(name)
.setRequest(request)
.setResponse(response);
}
public static Method.Builder serverStreamingMethod(
String name, Class<? extends MessageLite> request, Class<? extends MessageLite> response) {
return Method.builder()
.setType(Method.Type.SERVER_STREAMING)
.setName(name)
.setRequest(request)
.setResponse(response);
}
public static Method.Builder clientStreamingMethod(
String name, Class<? extends MessageLite> request, Class<? extends MessageLite> response) {
return Method.builder()
.setType(Method.Type.CLIENT_STREAMING)
.setName(name)
.setRequest(request)
.setResponse(response);
}
public static Method.Builder bidirectionalStreamingMethod(
String name, Class<? extends MessageLite> request, Class<? extends MessageLite> response) {
return Method.builder()
.setType(Method.Type.BIDIRECTIONAL_STREAMING)
.setName(name)
.setRequest(request)
.setResponse(response);
}
}
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