int-cli
Version:
INT is the new generation of bottom-up created system of IoT and blockchain
254 lines (253 loc) • 9.03 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const core_1 = require("../../core");
const util_1 = require("util");
class ChainEventFilterStub {
constructor(filters) {
this.m_filters = filters;
}
get querySql() {
const q = this.m_querySql;
return q;
}
get filterFunc() {
return this.m_filterFunc;
}
init() {
if (!this.m_filters
|| util_1.isObject(this.m_filters)
|| !Object.keys(this.m_filters).length) {
return core_1.ErrorCode.RESULT_INVALID_PARAM;
}
let querySql = new Map();
let filterFuncs = new Map();
for (let [event, filter] of Object.entries(this.m_filters)) {
if (!filter || !Object.keys(filter).length) {
filterFuncs.set(name, (log) => {
return true;
});
querySql.set(event, null);
}
let pfr = ChainEventFilterStub._parseFilter(filter, (op, ...opr) => {
if (op === 'and') {
let sql = '( ' + opr[0] + ' )';
for (let e of opr.slice(1)) {
sql += ' AND ( ' + e + ' )';
}
return sql;
}
else if (op === 'or') {
let sql = '( ' + opr[0] + ' )';
for (let e of opr.slice(1)) {
sql += ' OR ( ' + e + ' )';
}
return sql;
}
else if (op === 'eq') {
return `e."${opr[0]}" = "${JSON.stringify(opr[1])}"`;
}
else if (op === 'neq') {
return `e."${opr[0]}" != "${JSON.stringify(opr[1])}"`;
}
else if (op === 'in') {
let sql = `e."${opr[0]}" IN [`;
if (opr[1].length) {
sql += `"${JSON.stringify(opr[1][0])}"`;
}
for (let v of opr[1]) {
sql += `,"${JSON.stringify(opr[1][0])}"`;
}
sql += ']';
return sql;
}
else {
throw new Error();
}
});
if (pfr.err) {
return pfr.err;
}
querySql.set(event, pfr.value);
pfr = ChainEventFilterStub._parseFilter(filter, (op, ...opr) => {
if (op === 'and') {
let sql = '( ' + opr[0] + ' )';
for (let e of opr.slice(1)) {
sql += ' && ( ' + e + ' )';
}
return sql;
}
else if (op === 'or') {
let sql = '( ' + opr[0] + ' )';
for (let e of opr.slice(1)) {
sql += ' || ( ' + e + ' )';
}
return sql;
}
else if (op === 'eq') {
return `JSON.strigify(l.param.${opr[0]}) === '${JSON.stringify(opr[1])}'`;
}
else if (op === 'neq') {
return `JSON.strigify(l.param.${opr[0]})" !== '${JSON.stringify(opr[1])}'`;
}
else if (op === 'in') {
return `${opr[1].map((v) => JSON.stringify(v))}.indexOf(JSON.strigify(l.param.${opr[0]})) !== -1`;
}
else {
throw new Error();
}
});
if (pfr.err) {
return pfr.err;
}
let _func;
let funcDef = '_filterFunc = (l) => { return ' + pfr.value + ';};';
try {
eval(funcDef);
}
catch (e) {
return core_1.ErrorCode.RESULT_EXCEPTION;
}
filterFuncs.set(event, _func);
}
this.m_querySql = querySql;
this.m_filterFunc = (log) => {
if (!filterFuncs.has(log.name)) {
return false;
}
return (filterFuncs.get(log.name)(log));
};
return core_1.ErrorCode.RESULT_OK;
}
static _parseFilter(filter, parser) {
if (!util_1.isObject(filter)) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
const keys = Object.keys(filter);
if (keys.length !== 1) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
const op = keys[0];
if (op === '$and') {
let exp = filter['$and'];
if (!util_1.isArray(exp)) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
if (exp.length > 2) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
let opr = [];
for (let sub of exp) {
const pfr = this._parseFilter(sub, parser);
if (pfr.err) {
return { err: pfr.err };
}
opr.push(pfr.value);
}
let value;
try {
value = parser('and', ...opr);
}
catch (e) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
return { err: core_1.ErrorCode.RESULT_OK, value };
}
else if (op === '$or') {
let exp = filter['$or'];
if (!util_1.isArray(exp)) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
if (exp.length > 2) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
let opr = [];
for (let sub of exp) {
const pfr = this._parseFilter(sub, parser);
if (pfr.err) {
return { err: pfr.err };
}
opr.push(pfr.value);
}
let value;
try {
value = parser('or', ...opr);
}
catch (e) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
return { err: core_1.ErrorCode.RESULT_OK, value };
}
else if (op === '$eq') {
let exp = filter['eq'];
if (!util_1.isObject(exp)) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
const _keys = Object.keys(exp);
if (_keys.length !== 1) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
const index = _keys[0];
let value;
try {
value = parser('eq', index, exp[index]);
}
catch (e) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
return { err: core_1.ErrorCode.RESULT_OK, value };
}
else if (op === '$neq') {
let exp = filter['neq'];
if (!util_1.isObject(exp)) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
const _keys = Object.keys(exp);
if (_keys.length !== 1) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
const index = _keys[0];
let value;
try {
value = parser('neq', index, exp[index]);
}
catch (e) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
return { err: core_1.ErrorCode.RESULT_OK, value };
}
else if (op === '$in') {
let exp = filter['in'];
if (!util_1.isObject(exp)) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
const _keys = Object.keys(exp);
if (_keys.length !== 1) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
const index = _keys[0];
if (!util_1.isArray(exp[index])) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
let value;
try {
value = parser('in', index, exp[index]);
}
catch (e) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
return { err: core_1.ErrorCode.RESULT_OK, value };
}
else {
let index = op;
let value;
try {
value = parser('eq', index, filter[index]);
}
catch (e) {
return { err: core_1.ErrorCode.RESULT_INVALID_FORMAT };
}
return { err: core_1.ErrorCode.RESULT_OK, value };
}
}
}
exports.ChainEventFilterStub = ChainEventFilterStub;