| /* |
| * 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 main |
| |
| import ( |
| "bytes" |
| "errors" |
| "time" |
| ) |
| |
| import ( |
| log "github.com/AlexStocks/log4go" |
| getty "github.com/apache/dubbo-getty" |
| ) |
| |
| var echoPkgHandler = NewEchoPackageHandler() |
| |
| type EchoPackageHandler struct{} |
| |
| func NewEchoPackageHandler() *EchoPackageHandler { |
| return &EchoPackageHandler{} |
| } |
| |
| func (h *EchoPackageHandler) Read(ss getty.Session, data []byte) (interface{}, int, error) { |
| var ( |
| err error |
| len int |
| pkg EchoPackage |
| buf *bytes.Buffer |
| ) |
| |
| buf = bytes.NewBuffer(data) |
| len, err = pkg.Unmarshal(buf) |
| if err != nil { |
| if err == ErrNotEnoughStream { |
| return nil, 0, nil |
| } |
| |
| return nil, 0, err |
| } |
| |
| return &pkg, len, nil |
| } |
| |
| func (h *EchoPackageHandler) Write(ss getty.Session, pkg interface{}) ([]byte, error) { |
| var ( |
| ok bool |
| err error |
| startTime time.Time |
| echoPkg *EchoPackage |
| buf *bytes.Buffer |
| ) |
| |
| startTime = time.Now() |
| if echoPkg, ok = pkg.(*EchoPackage); !ok { |
| log.Error("illegal pkg:%+v\n", pkg) |
| return nil, errors.New("invalid echo package!") |
| } |
| |
| buf, err = echoPkg.Marshal() |
| if err != nil { |
| log.Warn("binary.Write(echoPkg{%#v}) = err{%#v}", echoPkg, err) |
| return nil, err |
| } |
| |
| log.Debug("WriteEchoPkgTimeMs = %s", time.Since(startTime).String()) |
| |
| return buf.Bytes(), nil |
| } |