redis-typescript
Version:
redis client for node.js with typescript and async
129 lines • 4.42 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
class Protocol {
constructor() {
this._result = new Array();
this._end = "";
this.data = {
state: true,
res: {
error: false,
data: null,
},
};
}
write(data) {
const array = (this._end + data.toString()).split("\r\n");
this._end = array.pop();
this._result = this._result.concat(array);
}
parse() {
this.data = {
state: true,
res: {
error: false,
data: null,
},
};
if (this._result.length < 1 ||
(this._result.length === 1 && this._end.length !== 0)) {
this.data.state = false;
}
else {
const current = this._result[0];
switch (current.charAt(0)) {
case "+":
this.data.res = {
error: false,
data: current.slice(1),
};
this._result.shift();
break;
case "-":
this.data.res = {
error: true,
data: current.slice(1),
};
this._result.shift();
break;
case ":":
this.data.res = {
error: false,
data: +current.slice(1),
};
this._result.shift();
break;
case "$":
if (-1 === parseInt(current.slice(1), 10)) {
this.data.res = {
error: false,
data: null,
};
this._result.shift();
}
else {
this._result.shift();
this.data.res = {
error: false,
data: this._result.shift(),
};
}
break;
case "*":
const len = parseInt(current.slice(1), 10);
if (0 === len) {
this.data.res = {
error: false,
data: [],
};
this._result.shift();
}
else {
this.data.res.data = [];
let i;
for (i = 1; i < this._result.length && this.data.res.data.length < len; i++) {
if ("$-1" === this._result[i].slice(0, 3)) {
this.data.res.data.push(null);
}
else if (typeof this._result[i + 1] === "undefined") {
break;
}
else {
this.data.res.data.push(this._result[++i]);
}
}
if (this.data.res.data.length === len) {
this._result.splice(0, i);
}
else {
this.data.state = false;
}
}
break;
default:
this.data.state = false;
}
}
}
encode(...parameters) {
const length = parameters.length;
let parameter;
let request = `*${length}\r\n`;
for (let i = 0; i < length; i++) {
parameter = parameters[i];
if (typeof parameter === "string") {
request += `$${parameter.length}\r\n${parameter}\r\n`;
}
else if (typeof parameter === "number") {
parameter = parameter.toString();
request += `$${parameter.length}\r\n${parameter}\r\n`;
}
else {
throw new Error("encode ags err");
}
}
return request;
}
}
exports.Protocol = Protocol;
//# sourceMappingURL=protocol.js.map