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5
server/common/constant.js
Normal file
5
server/common/constant.js
Normal file
@ -0,0 +1,5 @@
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const EVENTDB_STATE_PENDING = 0;
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const EVENTDB_STATE_HANDLED = 1;
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exports.EVENTDB_STATE_PENDING = EVENTDB_STATE_PENDING;
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exports.EVENTDB_STATE_HANDLED = EVENTDB_STATE_HANDLED;
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@ -2,6 +2,7 @@ const app = require('j7/app');
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const utils = require('j7/utils');
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const bcutils = require('j7/bcutils');
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const log = require('j7/log');
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const constant = require('common/constant');
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const BaseService = require('./baseservice');
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const metaFactory = require('../metadata/factory');
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const eventsFactory = require('./events/factory');
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@ -58,7 +59,9 @@ class DbEventProcess extends BaseService {
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async start() {
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while (true) {
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if (this.eventHandle) {
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await this.pullEvent();
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}
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await utils.sleep(500 + utils.randRange(500, 1500));
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}
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}
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@ -75,7 +78,8 @@ class DbEventProcess extends BaseService {
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}
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const {err, rows} = await this.conn.execQuery(
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'SELECT * FROM ${tableName} WHERE `idx` > ? AND `idx` <= ? ' +
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'AND net_id = ? AND event_name = ? AND contract_address = ? ' +
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'AND net_id = ? AND event_name = ? AND contract_address = ? AND ' +
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'state = ' + constant.EVENTDB_STATE_PENDING + ' ' +
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'LIMIT ' + LIMIT_COUNT,
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[
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startIdx.toString(),
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@ -91,7 +95,7 @@ class DbEventProcess extends BaseService {
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await utils.serial(
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rows,
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async (row) => {
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await this.saveToDb(row);
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await this.process(row);
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}
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);
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this.progInfo['procEventCount'] += rows.length;
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@ -206,6 +210,15 @@ class DbEventProcess extends BaseService {
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}
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}
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async process(row) {
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if (!this.eventHandle) {
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return false;
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}
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const handle = eventsFactory.createHash(this);
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await handle.start();
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return true;
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}
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}
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module.exports = DbEventProcess;
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@ -3,6 +3,7 @@ const app = require('j7/app');
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const bcutils = require('j7/bcutils');
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const utils = require('j7/utils');
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const j7event = require('j7/event');
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const constant = require('common/constant');
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const metaFactory = require('../../metadata/factory');
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class BaseEventProcess {
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@ -35,6 +36,33 @@ class BaseEventProcess {
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throw errMsg;
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}
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async markOk() {
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await this.updateEventDb(
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[
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['state', constant.EVENTDB_STATE_HANDLED],
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['modifytime', utils.getUtcTime()],
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]
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);
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}
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async updateEventDb(fields) {
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const logHead = this.genLogHead('updateEventDb');
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while (true) {
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const {err} = await this.conn.update(
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this.eventProc.getTableName(),
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[
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['idx', this.getEventDb['idx']],
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],
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fields
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);
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if (!err) {
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break;
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}
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log.error(logHead + err);
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await utils.sleep(5000 + utils.randRange(500, 1500));
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}
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}
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}
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module.exports = BaseEventProcess;
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