| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| /** |
| * These .proto interfaces are private and stable. |
| * Please see http://wiki.apache.org/hadoop/Compatibility |
| * for what changes are allowed for a *stable* .proto interface. |
| */ |
| syntax = "proto2"; |
| option java_package = "org.apache.hadoop.ipc.protobuf"; |
| option java_outer_classname = "ProtocolInfoProtos"; |
| option java_generic_services = true; |
| option java_generate_equals_and_hash = true; |
| package hadoop.common; |
| |
| /** |
| * Request to get protocol versions for all supported rpc kinds. |
| */ |
| message GetProtocolVersionsRequestProto { |
| required string protocol = 1; // Protocol name |
| } |
| |
| /** |
| * Protocol version with corresponding rpc kind. |
| */ |
| message ProtocolVersionProto { |
| required string rpcKind = 1; //RPC kind |
| repeated uint64 versions = 2; //Protocol version corresponding to the rpc kind. |
| } |
| |
| /** |
| * Get protocol version response. |
| */ |
| message GetProtocolVersionsResponseProto { |
| repeated ProtocolVersionProto protocolVersions = 1; |
| } |
| |
| /** |
| * Get protocol signature request. |
| */ |
| message GetProtocolSignatureRequestProto { |
| required string protocol = 1; // Protocol name |
| required string rpcKind = 2; // RPC kind |
| } |
| |
| /** |
| * Get protocol signature response. |
| */ |
| message GetProtocolSignatureResponseProto { |
| repeated ProtocolSignatureProto protocolSignature = 1; |
| } |
| |
| message ProtocolSignatureProto { |
| required uint64 version = 1; |
| repeated uint32 methods = 2; |
| } |
| |
| /** |
| * Protocol to get information about protocols. |
| */ |
| service ProtocolInfoService { |
| /** |
| * Return protocol version corresponding to protocol interface for each |
| * supported rpc kind. |
| */ |
| rpc getProtocolVersions(GetProtocolVersionsRequestProto) |
| returns (GetProtocolVersionsResponseProto); |
| |
| /** |
| * Return protocol version corresponding to protocol interface. |
| */ |
| rpc getProtocolSignature(GetProtocolSignatureRequestProto) |
| returns (GetProtocolSignatureResponseProto); |
| } |