| /** |
| * 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. |
| */ |
| package org.apache.hadoop.oncrpc; |
| |
| import org.apache.hadoop.oncrpc.security.Verifier; |
| |
| /** |
| * Represents RPC message MSG_ACCEPTED reply body. See RFC 1831 for details. |
| * This response is sent to a request to indicate success of the request. |
| */ |
| public class RpcAcceptedReply extends RpcReply { |
| public enum AcceptState { |
| // the order of the values below are significant. |
| SUCCESS, /* RPC executed successfully */ |
| PROG_UNAVAIL, /* remote hasn't exported program */ |
| PROG_MISMATCH, /* remote can't support version # */ |
| PROC_UNAVAIL, /* program can't support procedure */ |
| GARBAGE_ARGS, /* procedure can't decode params */ |
| SYSTEM_ERR; /* e.g. memory allocation failure */ |
| |
| public static AcceptState fromValue(int value) { |
| return values()[value]; |
| } |
| |
| public int getValue() { |
| return ordinal(); |
| } |
| }; |
| |
| public static RpcAcceptedReply getAcceptInstance(int xid, |
| Verifier verifier) { |
| return getInstance(xid, AcceptState.SUCCESS, verifier); |
| } |
| |
| public static RpcAcceptedReply getInstance(int xid, AcceptState state, |
| Verifier verifier) { |
| return new RpcAcceptedReply(xid, ReplyState.MSG_ACCEPTED, verifier, |
| state); |
| } |
| |
| private final AcceptState acceptState; |
| |
| RpcAcceptedReply(int xid, ReplyState state, Verifier verifier, |
| AcceptState acceptState) { |
| super(xid, state, verifier); |
| this.acceptState = acceptState; |
| } |
| |
| public static RpcAcceptedReply read(int xid, ReplyState replyState, XDR xdr) { |
| Verifier verifier = Verifier.readFlavorAndVerifier(xdr); |
| AcceptState acceptState = AcceptState.fromValue(xdr.readInt()); |
| return new RpcAcceptedReply(xid, replyState, verifier, acceptState); |
| } |
| |
| public AcceptState getAcceptState() { |
| return acceptState; |
| } |
| |
| @Override |
| public XDR write(XDR xdr) { |
| xdr.writeInt(xid); |
| xdr.writeInt(messageType.getValue()); |
| xdr.writeInt(replyState.getValue()); |
| Verifier.writeFlavorAndVerifier(verifier, xdr); |
| xdr.writeInt(acceptState.getValue()); |
| return xdr; |
| } |
| } |