ead90cc1a8
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1452581 13f79535-47bb-0310-9956-ffa450edef68
62 lines
2.6 KiB
Protocol Buffer
62 lines
2.6 KiB
Protocol Buffer
/**DER
|
|
* 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 are the messages used by Hadoop RPC for the Rpc Engine Protocol Buffer
|
|
* to marshal the request and response in the RPC layer.
|
|
* The messages are sent in addition to the normal RPC header as
|
|
* defined in RpcHeader.proto
|
|
*/
|
|
option java_package = "org.apache.hadoop.ipc.protobuf";
|
|
option java_outer_classname = "ProtobufRpcEngineProtos";
|
|
option java_generate_equals_and_hash = true;
|
|
package hadoop.common;
|
|
|
|
/**
|
|
* This message is the header for the Protobuf Rpc Engine
|
|
* when sending a RPC request from RPC client to the RPC server.
|
|
* The actual request (serialized as protobuf) follows this request.
|
|
*
|
|
* No special header is needed for the Rpc Response for Protobuf Rpc Engine.
|
|
* The normal RPC response header (see RpcHeader.proto) are sufficient.
|
|
*/
|
|
message RequestHeaderProto {
|
|
/** Name of the RPC method */
|
|
required string methodName = 1;
|
|
|
|
/**
|
|
* RPCs for a particular interface (ie protocol) are done using a
|
|
* IPC connection that is setup using rpcProxy.
|
|
* The rpcProxy's has a declared protocol name that is
|
|
* sent form client to server at connection time.
|
|
*
|
|
* Each Rpc call also sends a protocol name
|
|
* (called declaringClassprotocolName). This name is usually the same
|
|
* as the connection protocol name except in some cases.
|
|
* For example metaProtocols such ProtocolInfoProto which get metainfo
|
|
* about the protocol reuse the connection but need to indicate that
|
|
* the actual protocol is different (i.e. the protocol is
|
|
* ProtocolInfoProto) since they reuse the connection; in this case
|
|
* the declaringClassProtocolName field is set to the ProtocolInfoProto
|
|
*/
|
|
required string declaringClassProtocolName = 3;
|
|
|
|
/** protocol version of class declaring the called method */
|
|
required uint64 clientProtocolVersion = 4;
|
|
}
|