| /* |
| * 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 hessian_demo |
| |
| import ( |
| "reflect" |
| "testing" |
| ) |
| |
| import ( |
| "github.com/stretchr/testify/assert" |
| ) |
| |
| import ( |
| hessian "github.com/apache/dubbo-go-hessian2" |
| ) |
| |
| type User struct { |
| Name string |
| Age int |
| } |
| |
| func (User) JavaClassName() string { |
| return "hessian.demo.User" |
| } |
| |
| type Location struct { |
| Address string |
| Postcode string |
| } |
| |
| func (Location) JavaClassName() string { |
| return "hessian.demo.Location" |
| } |
| |
| func TestLoopEncodeDecode(t *testing.T) { |
| u := &User{ |
| Name: "wongoo", |
| Age: 18, |
| } |
| loc := &Location{ |
| Address: "xiamen", |
| Postcode: "361000", |
| } |
| |
| // demo a bytes buffer from client to server |
| var bytes []byte |
| e := hessian.NewEncoder() |
| |
| // -------- encode 1 |
| bytes = append(bytes, encodeWithFlagAndLength(e, 'D', u)...) |
| |
| // -------- encode 2 |
| bytes = append(bytes, encodeWithFlagAndLength(e, 'S', 12345)...) |
| |
| // -------- encode 3 |
| bytes = append(bytes, encodeWithFlagAndLength(e, 'D', loc)...) |
| |
| // -------- encode 4 |
| bytes = append(bytes, encodeWithFlagAndLength(e, 'D', "hello")...) |
| |
| // demo a decoder to decode buffer from client |
| d := hessian.NewDecoder(bytes) |
| |
| // -------- decode 1 |
| decodeFlagAndLengthAndData(t, d, u) |
| |
| // -------- decode 2 |
| decodeFlagAndLengthAndData(t, d, 12345) |
| |
| // -------- decode 3 |
| decodeFlagAndLengthAndData(t, d, loc) |
| |
| // -------- decode 4 |
| decodeFlagAndLengthAndData(t, d, "hello") |
| } |
| |
| // encode format: [flag][length][binary data] |
| func encodeWithFlagAndLength(e *hessian.Encoder, flag byte, obj interface{}) []byte { |
| var bytes []byte |
| bytes = append(bytes, flag) |
| |
| e.Clean() |
| _ = e.Encode(obj) |
| dataBytes := e.Buffer() |
| |
| length := len(dataBytes) |
| |
| e.Clean() |
| _ = e.Encode(length) |
| lengthBytes := e.Buffer() |
| |
| bytes = append(bytes, lengthBytes...) |
| bytes = append(bytes, dataBytes...) |
| |
| return bytes |
| } |
| |
| func decodeFlagAndLengthAndData(t *testing.T, d *hessian.Decoder, expect interface{}) { |
| // decode flag |
| d.Clean() |
| flag, _ := d.ReadByte() |
| |
| // decode length |
| d.Clean() |
| lengthObj, _ := d.Decode() |
| length := lengthObj.(int64) |
| |
| // skip data when flag='S' |
| if flag == 'S' { |
| _, _ = d.Discard(int(length)) |
| return |
| } |
| |
| // decode data |
| d.Clean() |
| res, _ := d.Decode() |
| |
| // check |
| assert.True(t, reflect.DeepEqual(expect, res)) |
| } |