console
console.log("start")
var COMMAND_REPORT = 0x00;
var COMMAND_SET = 0x01;
var COMMAND_REPORT_REPLY = 0x02;
var COMMAND_SET_REPLY = 0x03;
var COMMAD_UNKOWN = 0xff;
var ALINK_PROP_REPORT_METHOD = 'thing.event.property.post';
var ALINK_PROP_SET_METHOD = 'thing.service.property.set';
var ALINK_PROP_SET_REPLY_METHOD = 'thing.service.property.set';
var SELF_DEFINE_TOPIC_UPDATE_FLAG = '/user/update'
var SELF_DEFINE_TOPIC_ERROR_FLAG = '/user/update/error'
function StringToByte ( str ) {
var re = [], idx;
for(var i = 0; i < str.length; i++)
{
idx = str.charCodeAt(i);
if(idx & 0xff00){
re.push(idx >> 8);
re.push(idx & 0xff);
}else{
re.push(idx);
}
}
return re;
}
function HexString2Bytes(str) {
var pos = 0;
var len = str.length;
if (len % 2 != 0) {
return null;
}
len /= 2;
var arrBytes = new Array();
for (var i = 0; i < len; i++) {
var s = str.substr(pos, 2);
var v = parseInt(s, 16);
arrBytes.push(v);
pos += 2;
}
return arrBytes;
}
function rawDataToProtocol(bytes) {
var uint8Array = new Uint8Array(bytes.length);
for (var i = 0; i < bytes.length; i++) {
uint8Array[i] = bytes[i] & 0xff;
}
var dataView = new DataView(uint8Array.buffer, 0);
var jsonMap = new Object();
var fHead = uint8Array[0];
console.log(uint8Array)
if (fHead == COMMAND_REPORT) {
jsonMap['method'] = ALINK_PROP_REPORT_METHOD;
jsonMap['version'] = '1.0';
jsonMap['id'] = '' + dataView.getInt32(1);
var params = {};
params['prop_int16'] = dataView.getInt16(5);
params['prop_bool'] = uint8Array[7];
params['prop_float'] = dataView.getFloat32(8);
jsonMap['params'] = params;
} else if(fHead == COMMAND_SET_REPLY) {
jsonMap['version'] = '1.0';
jsonMap['id'] = '' + dataView.getInt32(1);
jsonMap['code'] = ''+ dataView.getUint8(5);
jsonMap['data'] = {};
}
return jsonMap;
}
var up = "0201010051cc";
var up = "0201010051cc";
console.log(up)
var bytes = HexString2Bytes(up);
console.log(bytes)
var res = rawDataToProtocol(bytes)
console.log(res)
function protocolToRawData(json) {
var method = json['method'];
var id = json['id'];
var version = json['version'];
var payloadArray = [];
if (method == ALINK_PROP_SET_METHOD)
{
var params = json['params'];
var prop_float = params['prop_float'];
var prop_int16 = params['prop_int16'];
var prop_bool = params['prop_bool'];
payloadArray = payloadArray.concat(buffer_uint8(COMMAND_SET));
payloadArray = payloadArray.concat(buffer_int32(parseInt(id)));
payloadArray = payloadArray.concat(buffer_int16(prop_int16));
payloadArray = payloadArray.concat(buffer_uint8(prop_bool));
payloadArray = payloadArray.concat(buffer_float32(prop_float));
} else if (method == ALINK_PROP_REPORT_METHOD) {
var code = json['code'];
payloadArray = payloadArray.concat(buffer_uint8(COMMAND_REPORT_REPLY));
payloadArray = payloadArray.concat(buffer_int32(parseInt(id)));
payloadArray = payloadArray.concat(buffer_uint8(code));
} else {
var code = json['code'];
payloadArray = payloadArray.concat(buffer_uint8(COMMAD_UNKOWN));
payloadArray = payloadArray.concat(buffer_int32(parseInt(id)));
payloadArray = payloadArray.concat(buffer_uint8(code));
}
return payloadArray;
}
function transformPayload(topic, bytes) {
var uint8Array = new Uint8Array(bytes.length);
for (var i = 0; i < bytes.length; i++) {
uint8Array[i] = bytes[i] & 0xff;
}
var dataView = new DataView(uint8Array.buffer, 0);
var jsonMap = {};
if(topic.includes(SELF_DEFINE_TOPIC_ERROR_FLAG)) {
jsonMap['topic'] = topic;
jsonMap['errorCode'] = dataView.getInt8(0)
} else if (topic.includes(SELF_DEFINE_TOPIC_UPDATE_FLAG)) {
jsonMap['topic'] = topic;
jsonMap['prop_int16'] = dataView.getInt16(5);
jsonMap['prop_bool'] = uint8Array[7];
jsonMap['prop_float'] = dataView.getFloat32(8);
}
return jsonMap;
}
function buffer_uint8(value) {
var uint8Array = new Uint8Array(1);
var dv = new DataView(uint8Array.buffer, 0);
dv.setUint8(0, value);
return [].slice.call(uint8Array);
}
function buffer_int16(value) {
var uint8Array = new Uint8Array(2);
var dv = new DataView(uint8Array.buffer, 0);
dv.setInt16(0, value);
return [].slice.call(uint8Array);
}
function buffer_int32(value) {
var uint8Array = new Uint8Array(4);
var dv = new DataView(uint8Array.buffer, 0);
dv.setInt32(0, value);
return [].slice.call(uint8Array);
}
function buffer_float32(value) {
var uint8Array = new Uint8Array(4);
var dv = new DataView(uint8Array.buffer, 0);
dv.setFloat32(0, value);
return [].slice.call(uint8Array);
}
<p>test</p>