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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| 'use strict' | ||
|
|
||
| const sqlite3 = require('sqlite3') | ||
| const sqlite = require('sqlite') | ||
| const { DbBinder } = require('../lib/sqlite/dbbinder') | ||
| const Router = require('../index') | ||
| const { BaseRealm } = require('../lib/realm') | ||
| const { ReactEngine } = require('../lib/binder') | ||
|
|
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| async function main () { | ||
| const db = await sqlite.open({ | ||
| filename: '../dbfiles/msgdb.sqlite', | ||
| driver: sqlite3.Database | ||
| }) | ||
|
|
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| const binder = new DbBinder(db) | ||
| const maxId = await binder.init() | ||
| binder.startIntervalTimer() | ||
| console.log('loaded max id:', maxId) | ||
|
|
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| const router = new Router() | ||
| router.createRealm = () => new BaseRealm(router, new ReactEngine(binder)) | ||
| router.setLogTrace(true) | ||
| router.listenWAMP({ port: 9000 }) | ||
| router.listenMQTT({ port: 1883 }) | ||
| } | ||
|
|
||
| main().then((value) => { | ||
| console.log('DONE.') | ||
| }, (err) => { | ||
| console.error('ERROR:', err, err.stack) | ||
| }) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| 'use strict' | ||
|
|
||
| const tools = require('../tools') | ||
| const { makeDataSerializable, unSerializeData } = require('../realm') | ||
| const { ReactBinder } = require('../binder') | ||
| const Msg = require('./msg') | ||
|
|
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| class DbBinder extends ReactBinder { | ||
| constructor (db) { | ||
| super() | ||
| this.msg = new Msg(db) | ||
| this._messageGen = 0 | ||
| this.dateStr = tools.keyDate(new Date()) | ||
| } | ||
|
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| startIntervalTimer () { | ||
| setInterval(() => { | ||
| let dateStr = tools.keyDate(new Date()) | ||
| if (dateStr > this.dateStr) { | ||
| this._messageGen = 0 | ||
| } | ||
| }, 60000) | ||
| } | ||
|
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| async init () { | ||
| await this.msg.createTables() | ||
| let curId = await this.msg.getMaxId() | ||
| if (curId) { | ||
| this.parseId(curId) | ||
| } | ||
| return curId | ||
| } | ||
|
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| parseId (encodedId) { | ||
| let newDateStr = encodedId.substr(0, 10) | ||
| let intLen = encodedId.charCodeAt(10) - 96 | ||
| let newId = parseInt(encodedId.substr(11, intLen), 36) | ||
| if (newDateStr > this.dateStr) { | ||
| this._messageGen = newId | ||
| } else if (newDateStr == this.dateStr && newId > this._messageGen) { | ||
| this._messageGen = newId | ||
| } | ||
| } | ||
|
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| getNewId () { | ||
| return this.dateStr + tools.keyId(++this._messageGen) | ||
| } | ||
|
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| keepHistory (engine, actor) { | ||
| const id = this.getNewId() | ||
| actor.setEventId(id) | ||
| // console.log("getNewId", id, actor.getEvent()) | ||
|
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| let result | ||
| if (actor.getOpt().trace) { | ||
| result = this.msg.saveMsg( | ||
| id, | ||
| engine.getRealmName(), | ||
| actor.getUri(), | ||
| makeDataSerializable(actor.getData()) | ||
| ) | ||
| } else { | ||
| result = Promise.resolve() | ||
| } | ||
| result.then(() => { | ||
| actor.destSID = engine.dispatch(actor.getEvent()) | ||
| actor.confirm(actor.msg) | ||
| }) | ||
| } | ||
|
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| getHistoryAfter (engine, after, uri, cbRow) { | ||
| return this.msg.getHistory( | ||
| engine.getRealmName(), | ||
| { fromId: after, uri }, | ||
| (event) => { | ||
| cbRow({ | ||
| qid: event.id, | ||
| uri: event.uri, | ||
| data: unSerializeData(event.body) | ||
| }) | ||
| } | ||
| ) | ||
| } | ||
|
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| cleanupSession(engine, sessionId) { | ||
| } | ||
| } | ||
|
|
||
| exports.DbBinder = DbBinder |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| 'use strict' | ||
|
|
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| const { defaultParse, restoreUri } = require('../topic_pattern') | ||
|
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| function Msg (database) { | ||
| this.createTables = function () { | ||
| return database.run( | ||
| 'CREATE TABLE IF NOT EXISTS msg (' + | ||
| 'msg_id TEXT not null,' + | ||
| 'msg_realm TEXT not null,' + | ||
| 'msg_uri TEXT not null,' + | ||
| 'msg_body TEXT,' + | ||
| 'PRIMARY KEY (msg_id));' | ||
| ) | ||
| } | ||
|
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| this.getMaxId = function () { | ||
| return database.all( | ||
| 'SELECT MAX(msg_id) max_id FROM msg', [] | ||
| ).then((result) => { | ||
| if (!Array.isArray(result)) { | ||
| return undefined | ||
| } | ||
| if (result.length === 0) { | ||
| return undefined | ||
| } | ||
| if (result[0].max_id) { | ||
| return result[0].max_id | ||
| } else { | ||
| return undefined | ||
| } | ||
| }) | ||
| } | ||
|
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| this.saveMsg = function (id, realm, uri, body) { | ||
| return database.run( | ||
| 'insert into msg values (?,?,?,?);', | ||
| [id, realm, restoreUri(uri), JSON.stringify(body)] | ||
| ) | ||
| } | ||
|
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| this.getHistory = function (realm, range, rowcb) { | ||
| let sql = 'SELECT msg_id, msg_uri, msg_body FROM msg' | ||
| let where = [] | ||
| if (range.fromId) { | ||
| where.push('msg_id > "' + range.fromId + '"') | ||
| } | ||
| if (range.toId) { | ||
| where.push('msg_id <= "' + range.toId + '"') | ||
| } | ||
|
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| where.push('msg_realm = ?') | ||
| where.push('msg_uri = ?') | ||
| sql += ' WHERE ' + where.join(' AND ') + ' ORDER BY msg_id' | ||
|
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| // console.log('range', [realm, restoreUri(range.uri)], sql) | ||
| return database.each( | ||
| sql, | ||
| [realm, restoreUri(range.uri)], | ||
| (err, row) => { | ||
| rowcb({ | ||
| id: row.msg_id, | ||
| uri: defaultParse(row.msg_uri), | ||
| body: JSON.parse(row.msg_body) | ||
| }) | ||
| } | ||
| ) | ||
| } | ||
| } | ||
|
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| module.exports = Msg |
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