commit 153265b0c0e3b10016201089564b7390f811941f
Author: 斟酌 鵬兄 <tgckpg@gmail.com>
Date:   Tue May 31 17:55:08 2016 +0800

    Initial commit

diff --git a/infrastructure.js b/infrastructure.js
new file mode 100644
index 0000000..7653725
--- /dev/null
+++ b/infrastructure.js
@@ -0,0 +1,84 @@
+"use stict";
+
+const cl = global.botanLoader;
+
+const events = require( "events" );
+const util = require( "util" );
+
+var Infrastructure = function()
+{
+	events.EventEmitter.call( this );
+	var _self = this;
+
+	var __readyList = [];
+	this.readyList = new Proxy( __readyList, {
+
+		get: ( target, prop ) => Reflect.get( target, prop )
+
+		, set: ( target, prop, value ) => {
+
+			// Have to emit the event at next tick
+			// due to error thrown from the handlers
+			// hangs the process
+			process.nextTick( () => {
+				if( __readyList.every( ( v ) => v === true ) )
+				{
+					_self.isReady = true;
+					_self.emit( "apis_ready", _self )
+				}
+			} );
+
+			return Reflect.set( target, prop, value );
+		}
+
+	} );
+
+	this.APIs = {};
+	this.isReady = true;
+};
+
+util.inherits( Infrastructure, events.EventEmitter );
+
+Infrastructure.prototype.callAPI = function( name )
+{
+	var _self = this;
+
+	var propName = name.split( "." );
+	propName = name[ name.length - 1 ];
+
+	if( this.APIs[ propName ] ) return this.APIs[ propName ];
+
+	var path = name.replace( ".", "/" );
+
+	var API = cl.load( name );
+
+	if( !API.create )
+	{
+		throw new Error( "API does not have support calling" );
+	}
+
+	var aclass = API.create( Array.prototype.slice.call( arguments, 1 ) );
+
+	this.APIs[ propName ] = aclass;
+
+	if( aclass.ready !== undefined )
+	{
+		this.isReady = false;
+
+		var rList =  this.readyList;
+		rList.push( aclass.ready || aclass );
+
+		aclass.once( "ready", ( e ) => rList[ rList.indexOf( e ) ] = true );
+	}
+
+	return aclass;
+};
+
+Infrastructure.prototype.Ready = function( callback )
+{
+	var _self = this;
+	if( this.isReady ) callback();
+	else this.once( "apis_ready", () => callback() );
+};
+
+module.exports = Infrastructure;
diff --git a/redisclient.js b/redisclient.js
new file mode 100644
index 0000000..f21acb2
--- /dev/null
+++ b/redisclient.js
@@ -0,0 +1,22 @@
+const cl = global.botanLoader;
+const Dragonfly = global.Dragonfly;
+
+const Redis = require( "redis" );
+
+const SessConf = cl.load( "config.sx.modular.session" );
+
+var Client = Redis.createClient(
+	SessConf.config.port
+	, SessConf.config.host
+	, SessConf.config.options
+);
+
+Client.addListener( "error", ( e ) => { throw e; } );
+
+Client.select( SessConf.config.database, function( err, message )
+{
+	if( err ) throw err; 
+	Dragonfly.Info( "[Session] Database connected. Ready." );
+});
+
+module.exports = Client;
diff --git a/session.js b/session.js
new file mode 100644
index 0000000..91d76e8
--- /dev/null
+++ b/session.js
@@ -0,0 +1,152 @@
+"use strict";
+
+const cl = global.botanLoader;
+const Dragonfly = global.Dragonfly;
+
+const util = require( "util" );
+const EventEmitter = require( "events" ).EventEmitter;
+
+const Client = cl.load( "botansx.modular.redisclient" );
+const rand = cl.load( "botansx.utils.random" );
+const SessConf = cl.load( "config.sx.modular.session" );
+
+class SessionEventArgs
+{
+	constructor( message )
+	{
+		this.message = message;
+	}
+}
+
+class Session extends EventEmitter
+{
+	static create( args )
+	{
+		if( !args ) args = [];
+		return new Session( args[0], args[1] );
+	}
+
+	constructor( hash, prefix, noIdReset )
+	{
+		super();
+		var _self = this;
+
+		if( hash && prefix )
+			hash = hash.replace( new RegExp( "^" + prefix + "\\." ), "" );
+
+		prefix = prefix ? prefix + "." : "";
+
+		this.id = prefix + hash;
+		this.ready = false;
+		this.exists = false;
+
+		Client.HGETALL( this.id, function( err, obj )
+		{
+			if( err ) throw err;
+
+			if( _self.exists = !!obj )
+			{
+				_self.__sess = obj;
+			}
+			// Auto reset the session id if no match
+			else if( !noIdReset )
+			{
+				_self.id = prefix + rand.uuid();
+			}
+
+			_self.ready = true;
+			_self.emit( "ready", _self );
+		} );
+
+		this.__sess = {};
+		this.__emitOk = ( e, m ) => {
+			_self.__emit( e, "set", new SessionEventArgs( m ) );
+		};
+	}
+
+	__emit( err, EventName, SessionArgs )
+	{
+		if( err ) throw err;
+		this.emit( EventName || "set", this, SessionArgs );
+	}
+
+
+	// Spawn session with specified id
+	spawn( expire, handler )
+	{
+		var ttl = ( expire === undefined ? SessConf.ttl : expire ) + 0;
+		this.__sess[ "lifespan" ] = ttl;
+
+		var _self = this;
+		Client.multi()
+			.HSET( this.id, "spawn", new Date() )
+			.HSET( this.id, "lifespan", ttl )
+			.EXPIRE( this.id, ttl )
+			.exec( handler || this.__emitOk );
+	}
+
+	destroy( handler )
+	{
+		this.__sess = {};
+		Client.DEL( this.id, handler || this.__emitOk );
+	}
+
+	set( name, val )
+	{
+		this.__sess[ name ] = val;
+		Client.HSET( this.id, name, val, this.__emitOk );
+	}
+
+	get( name )
+	{
+		return this.__sess[ name ];
+	}
+
+	// Get value asynchronously
+	aget( name, handler )
+	{
+		var _self = this;
+		Client.HGET(
+			this.id, name
+			, function( err, rep )
+			{
+				_self.__emitOk( err );
+				_self.__sess[ name ] = rep;
+				handler && handler( rep );
+			}
+		);
+	}
+
+	remove( name )
+	{
+		delete this.__sess[ name ];
+		Client.HDEL( this.id, name, this.__emitOk );
+	}
+
+	expire( seconds )
+	{
+		// expire > lifespan > SessConf.ttl
+		var ttl = ( seconds === undefined
+			? ( ( this.__sess[ "lifespan" ] === undefined )
+				? SessConf.ttl
+				: this.__sess[ "lifespan" ]
+			) : seconds ) + 0
+		;
+
+		this.__sess[ "lifespan" ] = ttl;
+
+		Client.multi()
+			.HSET( this.id, "lifespan", ttl )
+			.EXPIRE( this.id, ttl, this.__emitOk )
+			.exec( this.__emitOk );
+	}
+
+	get busy()
+	{
+		return 0 < ( Client.command_queue.length + Client.offline_queue.length );
+	}
+}
+
+Session.SessionEventArgs = SessionEventArgs;
+
+module.exports = Session;