序列化

{ "name": "blueos.baseservice.messagepack" }

import messagepack from '@blueos.baseservice.messagepack'
或
const messagepack = require('@blueos.baseservice.messagepack')

/*
规则：
encode(OBJECT) array参数为数组；
1、需要序列化的数据中如果包含数组类型，必须使用相同的数据类型（类型包含：number，string，bool，Arraybuffer）；
2、需要序列化的数据中如果包含结构体类型，必须使用Arraybuffer类型，先将结构体类型encode，再做序列化
*/
import messagepack from '@blueos.baseservice.messagepack'

/* 1、简单类型 */
let array = [10, -10, false, 'Hello, world!']

let bufTemp = new Int8Array()

msgpack.encode({
  array: arrayValue1,
  success: data => {
    console.log(`handling success: ${JSON.stringify(data.buffer)}`)
    bufTemp = new Int8Array(data.buffer)
  },
  fail: (data, code) => {
    console.log(`handling fail, code = ${code}, errorMsg=${data}`)
  }
});

/* 2、包含数组类型(注意：如果是数组类型必须保证数组中的成员类型相同，否则encode返回undefined) */
let arrayValue1 =
[
  10,
  -10,
  false,
  [10, 20, 30],
  'Hello, world!',
];
msgpack.encode({
  array: arrayValue1,
  success: data => {
    console.log(`handling success: ${JSON.stringify(data.buffer)}`)
    bufTemp = new Int8Array(data.buffer)
  },
  fail: (data, code) => {
    console.log(`handling fail, code = ${code}, errorMsg=${data}`)
  }
});

/* 3、包含结构体类型(需要将结构体先encode成arraybuffer，再做一次encode) */
let arrayValue1 =
[
  1,
  -1,
  true,
  [10, 20],
  "xixi"
];
let buf1 = new Int8Array()

//上面为需要序列化的结构体类型
msgpack.encode({
  array: arrayValue1,
  success: data => {
    console.log(`handling success: ${JSON.stringify(data.buffer)}`)
    buf1 = new Int8Array(data.buffer)
    this.encodeFunc() // 结构体序列化成功后执行，继续完成序列化
  },
  fail: (data, code) => {
    console.log(`handling fail, code = ${code}, errorMsg=${data}`)
  }
});

//接收到结构体序列化成功的结果后调用encode再次完成序列化
encodeFunc() {
  let arrayValue2 =
  [
    10,
    false,
    [100, 200],
    'Hello, world!',
    buf1.buffer,
  ];
  msgpack.encode({
    array: arrayValue2,
    success: data => {
      console.log(`handling success: ${JSON.stringify(data.buffer)}`)
      bufTemp = new Int8Array(data.buffer)
    },
    fail: (data, code) => {
      console.log(`handling fail, code = ${code}, errorMsg=${data}`)
    }
  });
}

import messagepack from '@blueos.baseservice.messagepack'

let arrayValue1 = [10, -10, false, 'Hello, world!']
let bufTemp = new Int8Array()

msgpack.encode({
  array: arrayValue1,
  success: (data) => {
    console.log(`handling success: ${JSON.stringify(data.buffer)}`)
    bufTemp = new Int8Array(data.buffer)
  },
  fail: (data, code) => {
    console.log(`handling fail, code = ${code}, errorMsg=${data}`)
  },
})

msgpack.decode({
  buffer: bufTemp.buffer,
  success: (data) => {
    console.log(`handling success: ${data.array}`)
    arrayTemp = data.array
  },
  fail: (data, code) => {
    console.log(`handling fail, code = ${code}, errorMsg=${data}`)
  },
})