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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.
// http://code.google.com/p/protobuf/
//
// 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.
using Google.ProtocolBuffers.DescriptorProtos;
namespace Google.ProtocolBuffers.Descriptors {
/// <summary>
/// Describes a single method in a service.
/// </summary>
public sealed class MethodDescriptor : IndexedDescriptorBase<MethodDescriptorProto, MethodOptions> {
private readonly ServiceDescriptor service;
private MessageDescriptor inputType;
private MessageDescriptor outputType;
/// <value>
/// The service this method belongs to.
/// </value>
public ServiceDescriptor Service {
get { return service; }
}
/// <value>
/// The method's input type.
/// </value>
public MessageDescriptor InputType {
get { return inputType; }
}
/// <value>
/// The method's input type.
/// </value>
public MessageDescriptor OutputType {
get { return outputType; }
}
internal MethodDescriptor(MethodDescriptorProto proto, FileDescriptor file,
ServiceDescriptor parent, int index)
: base(proto, file, parent.FullName + "." + proto.Name, index) {
service = parent;
file.DescriptorPool.AddSymbol(this);
}
internal void CrossLink() {
IDescriptor lookup = File.DescriptorPool.LookupSymbol(Proto.InputType, this);
if (!(lookup is MessageDescriptor)) {
throw new DescriptorValidationException(this, "\"" + Proto.InputType + "\" is not a message type.");
}
inputType = (MessageDescriptor) lookup;
lookup = File.DescriptorPool.LookupSymbol(Proto.OutputType, this);
if (!(lookup is MessageDescriptor)) {
throw new DescriptorValidationException(this, "\"" + Proto.OutputType + "\" is not a message type.");
}
outputType = (MessageDescriptor) lookup;
}
}
}