root / trunk / web / dojo / dojox / cometd / _base.js @ 12
History | View | Annotate | Download (9.08 KB)
| 1 | 9 | andrej.cim | /*
|
|---|---|---|---|
| 2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
|
||
| 3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
|
||
| 4 | see: http://dojotoolkit.org/license for details
|
||
| 5 | */
|
||
| 6 | |||
| 7 | |||
| 8 | if(!dojo._hasResource["dojox.cometd._base"]){ |
||
| 9 | dojo._hasResource["dojox.cometd._base"]=true; |
||
| 10 | dojo.provide("dojox.cometd._base");
|
||
| 11 | dojo.require("dojo.AdapterRegistry");
|
||
| 12 | dojox.cometd={Connection:function(_1){
|
||
| 13 | dojo.mixin(this,{prefix:_1,_status:"unconnected",_handshook:false,_initialized:false,_polling:false,expectedNetworkDelay:10000,connectTimeout:0,version:"1.0",minimumVersion:"0.9",clientId:null,messageId:0,batch:0,_isXD:false,handshakeReturn:null,currentTransport:null,url:null,lastMessage:null,_messageQ:[],handleAs:"json",_advice:{},_backoffInterval:0,_backoffIncrement:1000,_backoffMax:60000,_deferredSubscribes:{},_deferredUnsubscribes:{},_subscriptions:[],_extendInList:[],_extendOutList:[]}); |
||
| 14 | this.state=function(){ |
||
| 15 | return this._status; |
||
| 16 | }; |
||
| 17 | this.init=function(_2,_3,_4){ |
||
| 18 | _3=_3||{};
|
||
| 19 | _3.version=this.version;
|
||
| 20 | _3.minimumVersion=this.minimumVersion;
|
||
| 21 | _3.channel="/meta/handshake";
|
||
| 22 | _3.id=""+this.messageId++; |
||
| 23 | this.url=_2||dojo.config["cometdRoot"]; |
||
| 24 | if(!this.url){ |
||
| 25 | throw "no cometd root"; |
||
| 26 | return null; |
||
| 27 | } |
||
| 28 | var _5="^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?$"; |
||
| 29 | var _6=(""+window.location).match(new RegExp(_5)); |
||
| 30 | if(_6[4]){ |
||
| 31 | var _7=_6[4].split(":"); |
||
| 32 | var _8=_7[0]; |
||
| 33 | var _9=_7[1]||"80"; |
||
| 34 | _6=this.url.match(new RegExp(_5)); |
||
| 35 | if(_6[4]){ |
||
| 36 | _7=_6[4].split(":"); |
||
| 37 | var _a=_7[0]; |
||
| 38 | var _b=_7[1]||"80"; |
||
| 39 | this._isXD=((_a!=_8)||(_b!=_9));
|
||
| 40 | } |
||
| 41 | } |
||
| 42 | if(!this._isXD){ |
||
| 43 | _3.supportedConnectionTypes=dojo.map(dojox.cometd.connectionTypes.pairs,"return item[0]");
|
||
| 44 | } |
||
| 45 | _3=this._extendOut(_3);
|
||
| 46 | var _c={url:this.url,handleAs:this.handleAs,content:{"message":dojo.toJson([_3])},load:dojo.hitch(this,function(_d){ |
||
| 47 | this._backon();
|
||
| 48 | this._finishInit(_d);
|
||
| 49 | }),error:dojo.hitch(this,function(e){ |
||
| 50 | this._backoff();
|
||
| 51 | this._finishInit(e);
|
||
| 52 | }),timeout:this.expectedNetworkDelay}; |
||
| 53 | if(_4){
|
||
| 54 | dojo.mixin(_c,_4); |
||
| 55 | } |
||
| 56 | this._props=_3;
|
||
| 57 | for(var _e in this._subscriptions){ |
||
| 58 | for(var _f in this._subscriptions[_e]){ |
||
| 59 | if(this._subscriptions[_e][_f].topic){ |
||
| 60 | dojo.unsubscribe(this._subscriptions[_e][_f].topic);
|
||
| 61 | } |
||
| 62 | } |
||
| 63 | } |
||
| 64 | this._messageQ=[];
|
||
| 65 | this._subscriptions=[];
|
||
| 66 | this._initialized=true; |
||
| 67 | this._status="handshaking"; |
||
| 68 | this.batch=0; |
||
| 69 | this.startBatch();
|
||
| 70 | var r;
|
||
| 71 | if(this._isXD){ |
||
| 72 | _c.callbackParamName="jsonp";
|
||
| 73 | r=dojo.io.script.get(_c); |
||
| 74 | }else{
|
||
| 75 | r=dojo.xhrPost(_c); |
||
| 76 | } |
||
| 77 | return r;
|
||
| 78 | }; |
||
| 79 | this.publish=function(_10,_11,_12){ |
||
| 80 | var _13={data:_11,channel:_10}; |
||
| 81 | if(_12){
|
||
| 82 | dojo.mixin(_13,_12); |
||
| 83 | } |
||
| 84 | this._sendMessage(_13);
|
||
| 85 | }; |
||
| 86 | this.subscribe=function(_14,_15,_16,_17){ |
||
| 87 | _17=_17||{};
|
||
| 88 | if(_15){
|
||
| 89 | var _18=_1+_14;
|
||
| 90 | var _19=this._subscriptions[_18]; |
||
| 91 | if(!_19||_19.length==0){ |
||
| 92 | _19=[]; |
||
| 93 | _17.channel="/meta/subscribe";
|
||
| 94 | _17.subscription=_14; |
||
| 95 | this._sendMessage(_17);
|
||
| 96 | var _1a=this._deferredSubscribes; |
||
| 97 | if(_1a[_14]){
|
||
| 98 | _1a[_14].cancel(); |
||
| 99 | delete _1a[_14];
|
||
| 100 | } |
||
| 101 | _1a[_14]=new dojo.Deferred();
|
||
| 102 | } |
||
| 103 | for(var i in _19){ |
||
| 104 | if(_19[i].objOrFunc===_15&&(!_19[i].funcName&&!_16||_19[i].funcName==_16)){
|
||
| 105 | return null; |
||
| 106 | } |
||
| 107 | } |
||
| 108 | var _1b=dojo.subscribe(_18,_15,_16);
|
||
| 109 | _19.push({topic:_1b,objOrFunc:_15,funcName:_16});
|
||
| 110 | this._subscriptions[_18]=_19;
|
||
| 111 | } |
||
| 112 | var ret=this._deferredSubscribes[_14]||{}; |
||
| 113 | ret.args=dojo._toArray(arguments);
|
||
| 114 | return ret;
|
||
| 115 | }; |
||
| 116 | this.unsubscribe=function(_1c,_1d,_1e,_1f){ |
||
| 117 | if((arguments.length==1)&&(!dojo.isString(_1c))&&(_1c.args)){ |
||
| 118 | return this.unsubscribe.apply(this,_1c.args); |
||
| 119 | } |
||
| 120 | var _20=_1+_1c;
|
||
| 121 | var _21=this._subscriptions[_20]; |
||
| 122 | if(!_21||_21.length==0){ |
||
| 123 | return null; |
||
| 124 | } |
||
| 125 | var s=0; |
||
| 126 | for(var i in _21){ |
||
| 127 | var sb=_21[i];
|
||
| 128 | if((!_1d)||(sb.objOrFunc===_1d&&(!sb.funcName&&!_1e||sb.funcName==_1e))){
|
||
| 129 | dojo.unsubscribe(_21[i].topic); |
||
| 130 | delete _21[i];
|
||
| 131 | }else{
|
||
| 132 | s++; |
||
| 133 | } |
||
| 134 | } |
||
| 135 | if(s==0){ |
||
| 136 | _1f=_1f||{};
|
||
| 137 | _1f.channel="/meta/unsubscribe";
|
||
| 138 | _1f.subscription=_1c; |
||
| 139 | delete this._subscriptions[_20]; |
||
| 140 | this._sendMessage(_1f);
|
||
| 141 | this._deferredUnsubscribes[_1c]=new dojo.Deferred(); |
||
| 142 | if(this._deferredSubscribes[_1c]){ |
||
| 143 | this._deferredSubscribes[_1c].cancel();
|
||
| 144 | delete this._deferredSubscribes[_1c]; |
||
| 145 | } |
||
| 146 | } |
||
| 147 | return this._deferredUnsubscribes[_1c]; |
||
| 148 | }; |
||
| 149 | this.disconnect=function(){ |
||
| 150 | for(var _22 in this._subscriptions){ |
||
| 151 | for(var sub in this._subscriptions[_22]){ |
||
| 152 | if(this._subscriptions[_22][sub].topic){ |
||
| 153 | dojo.unsubscribe(this._subscriptions[_22][sub].topic);
|
||
| 154 | } |
||
| 155 | } |
||
| 156 | } |
||
| 157 | this._subscriptions=[];
|
||
| 158 | this._messageQ=[];
|
||
| 159 | if(this._initialized&&this.currentTransport){ |
||
| 160 | this._initialized=false; |
||
| 161 | this.currentTransport.disconnect();
|
||
| 162 | } |
||
| 163 | if(!this._polling){ |
||
| 164 | this._publishMeta("connect",false); |
||
| 165 | } |
||
| 166 | this._initialized=false; |
||
| 167 | this._handshook=false; |
||
| 168 | this._status="disconnected"; |
||
| 169 | this._publishMeta("disconnect",true); |
||
| 170 | }; |
||
| 171 | this.subscribed=function(_23,_24){ |
||
| 172 | }; |
||
| 173 | this.unsubscribed=function(_25,_26){ |
||
| 174 | }; |
||
| 175 | this.tunnelInit=function(_27,_28){ |
||
| 176 | }; |
||
| 177 | this.tunnelCollapse=function(){ |
||
| 178 | }; |
||
| 179 | this._backoff=function(){ |
||
| 180 | if(!this._advice){ |
||
| 181 | this._advice={reconnect:"retry",interval:0}; |
||
| 182 | }else{
|
||
| 183 | if(!this._advice.interval){ |
||
| 184 | this._advice.interval=0; |
||
| 185 | } |
||
| 186 | } |
||
| 187 | if(this._backoffInterval<this._backoffMax){ |
||
| 188 | this._backoffInterval+=this._backoffIncrement; |
||
| 189 | } |
||
| 190 | }; |
||
| 191 | this._backon=function(){ |
||
| 192 | this._backoffInterval=0; |
||
| 193 | }; |
||
| 194 | this._interval=function(){ |
||
| 195 | var i=this._backoffInterval+(this._advice?(this._advice.interval?this._advice.interval:0):0); |
||
| 196 | if(i>0){ |
||
| 197 | } |
||
| 198 | return i;
|
||
| 199 | }; |
||
| 200 | this._publishMeta=function(_29,_2a,_2b){ |
||
| 201 | try{
|
||
| 202 | var _2c={cometd:this,action:_29,successful:_2a,state:this.state()}; |
||
| 203 | if(_2b){
|
||
| 204 | dojo.mixin(_2c,_2b); |
||
| 205 | } |
||
| 206 | dojo.publish(this.prefix+"/meta",[_2c]); |
||
| 207 | } |
||
| 208 | catch(e){
|
||
| 209 | } |
||
| 210 | }; |
||
| 211 | this._finishInit=function(_2d){ |
||
| 212 | if(this._status!="handshaking"){ |
||
| 213 | return;
|
||
| 214 | } |
||
| 215 | var _2e=this._handshook; |
||
| 216 | var _2f=false; |
||
| 217 | var _30={};
|
||
| 218 | if(_2d instanceof Error){ |
||
| 219 | dojo.mixin(_30,{reestablish:false,failure:true,error:_2d,advice:this._advice});
|
||
| 220 | }else{
|
||
| 221 | _2d=_2d[0];
|
||
| 222 | _2d=this._extendIn(_2d);
|
||
| 223 | this.handshakeReturn=_2d;
|
||
| 224 | if(_2d["advice"]){ |
||
| 225 | this._advice=_2d.advice;
|
||
| 226 | } |
||
| 227 | _2f=_2d.successful?_2d.successful:false;
|
||
| 228 | if(_2d.version<this.minimumVersion){ |
||
| 229 | if(console.log){
|
||
| 230 | } |
||
| 231 | _2f=false;
|
||
| 232 | this._advice.reconnect="none"; |
||
| 233 | } |
||
| 234 | dojo.mixin(_30,{reestablish:_2f&&_2e,response:_2d});
|
||
| 235 | } |
||
| 236 | this._publishMeta("handshake",_2f,_30); |
||
| 237 | if(this._status!="handshaking"){ |
||
| 238 | return;
|
||
| 239 | } |
||
| 240 | if(_2f){
|
||
| 241 | this._status="connecting"; |
||
| 242 | this._handshook=true; |
||
| 243 | this.currentTransport=dojox.cometd.connectionTypes.match(_2d.supportedConnectionTypes,_2d.version,this._isXD); |
||
| 244 | var _31=this.currentTransport; |
||
| 245 | _31._cometd=this;
|
||
| 246 | _31.version=_2d.version; |
||
| 247 | this.clientId=_2d.clientId;
|
||
| 248 | this.tunnelInit=_31.tunnelInit&&dojo.hitch(_31,"tunnelInit"); |
||
| 249 | this.tunnelCollapse=_31.tunnelCollapse&&dojo.hitch(_31,"tunnelCollapse"); |
||
| 250 | _31.startup(_2d); |
||
| 251 | }else{
|
||
| 252 | if(!this._advice||this._advice["reconnect"]!="none"){ |
||
| 253 | setTimeout(dojo.hitch(this,"init",this.url,this._props),this._interval()); |
||
| 254 | } |
||
| 255 | } |
||
| 256 | }; |
||
| 257 | this._extendIn=function(_32){ |
||
| 258 | dojo.forEach(dojox.cometd._extendInList,function(f){
|
||
| 259 | _32=f(_32)||_32; |
||
| 260 | }); |
||
| 261 | return _32;
|
||
| 262 | }; |
||
| 263 | this._extendOut=function(_33){ |
||
| 264 | dojo.forEach(dojox.cometd._extendOutList,function(f){
|
||
| 265 | _33=f(_33)||_33; |
||
| 266 | }); |
||
| 267 | return _33;
|
||
| 268 | }; |
||
| 269 | this.deliver=function(_34){ |
||
| 270 | dojo.forEach(_34,this._deliver,this); |
||
| 271 | return _34;
|
||
| 272 | }; |
||
| 273 | this._deliver=function(_35){ |
||
| 274 | _35=this._extendIn(_35);
|
||
| 275 | if(!_35["channel"]){ |
||
| 276 | if(_35["success"]!==true){ |
||
| 277 | return;
|
||
| 278 | } |
||
| 279 | } |
||
| 280 | this.lastMessage=_35;
|
||
| 281 | if(_35.advice){
|
||
| 282 | this._advice=_35.advice;
|
||
| 283 | } |
||
| 284 | var _36=null; |
||
| 285 | if((_35["channel"])&&(_35.channel.length>5)&&(_35.channel.substr(0,5)=="/meta")){ |
||
| 286 | switch(_35.channel){
|
||
| 287 | case "/meta/connect": |
||
| 288 | var _37={response:_35}; |
||
| 289 | if(_35.successful){
|
||
| 290 | if(this._status!="connected"){ |
||
| 291 | this._status="connected"; |
||
| 292 | this.endBatch();
|
||
| 293 | } |
||
| 294 | } |
||
| 295 | if(this._initialized){ |
||
| 296 | this._publishMeta("connect",_35.successful,_37); |
||
| 297 | } |
||
| 298 | break;
|
||
| 299 | case "/meta/subscribe": |
||
| 300 | _36=this._deferredSubscribes[_35.subscription];
|
||
| 301 | try{
|
||
| 302 | if(!_35.successful){
|
||
| 303 | if(_36){
|
||
| 304 | _36.errback(new Error(_35.error));
|
||
| 305 | } |
||
| 306 | this.currentTransport.cancelConnect();
|
||
| 307 | return;
|
||
| 308 | } |
||
| 309 | if(_36){
|
||
| 310 | _36.callback(true);
|
||
| 311 | } |
||
| 312 | this.subscribed(_35.subscription,_35);
|
||
| 313 | } |
||
| 314 | catch(e){
|
||
| 315 | log.warn(e); |
||
| 316 | } |
||
| 317 | break;
|
||
| 318 | case "/meta/unsubscribe": |
||
| 319 | _36=this._deferredUnsubscribes[_35.subscription];
|
||
| 320 | try{
|
||
| 321 | if(!_35.successful){
|
||
| 322 | if(_36){
|
||
| 323 | _36.errback(new Error(_35.error));
|
||
| 324 | } |
||
| 325 | this.currentTransport.cancelConnect();
|
||
| 326 | return;
|
||
| 327 | } |
||
| 328 | if(_36){
|
||
| 329 | _36.callback(true);
|
||
| 330 | } |
||
| 331 | this.unsubscribed(_35.subscription,_35);
|
||
| 332 | } |
||
| 333 | catch(e){
|
||
| 334 | log.warn(e); |
||
| 335 | } |
||
| 336 | break;
|
||
| 337 | default:
|
||
| 338 | if(_35.successful&&!_35.successful){
|
||
| 339 | this.currentTransport.cancelConnect();
|
||
| 340 | return;
|
||
| 341 | } |
||
| 342 | } |
||
| 343 | } |
||
| 344 | this.currentTransport.deliver(_35);
|
||
| 345 | if(_35.data){
|
||
| 346 | try{
|
||
| 347 | var _38=[_35];
|
||
| 348 | var _39=_1+_35.channel;
|
||
| 349 | var _3a=_35.channel.split("/"); |
||
| 350 | var _3b=_1;
|
||
| 351 | for(var i=1;i<_3a.length-1;i++){ |
||
| 352 | dojo.publish(_3b+"/**",_38);
|
||
| 353 | _3b+="/"+_3a[i];
|
||
| 354 | } |
||
| 355 | dojo.publish(_3b+"/**",_38);
|
||
| 356 | dojo.publish(_3b+"/*",_38);
|
||
| 357 | dojo.publish(_39,_38); |
||
| 358 | } |
||
| 359 | catch(e){
|
||
| 360 | } |
||
| 361 | } |
||
| 362 | }; |
||
| 363 | this._sendMessage=function(_3c){ |
||
| 364 | if(this.currentTransport&&!this.batch){ |
||
| 365 | return this.currentTransport.sendMessages([_3c]); |
||
| 366 | }else{
|
||
| 367 | this._messageQ.push(_3c);
|
||
| 368 | return null; |
||
| 369 | } |
||
| 370 | }; |
||
| 371 | this.startBatch=function(){ |
||
| 372 | this.batch++;
|
||
| 373 | }; |
||
| 374 | this.endBatch=function(){ |
||
| 375 | if(--this.batch<=0&&this.currentTransport&&this._status=="connected"){ |
||
| 376 | this.batch=0; |
||
| 377 | var _3d=this._messageQ; |
||
| 378 | this._messageQ=[];
|
||
| 379 | if(_3d.length>0){ |
||
| 380 | this.currentTransport.sendMessages(_3d);
|
||
| 381 | } |
||
| 382 | } |
||
| 383 | }; |
||
| 384 | this._onUnload=function(){ |
||
| 385 | dojo.addOnUnload(dojox.cometd,"disconnect");
|
||
| 386 | }; |
||
| 387 | this._connectTimeout=function(){ |
||
| 388 | var _3e=0; |
||
| 389 | if(this._advice&&this._advice.timeout&&this.expectedNetworkDelay>0){ |
||
| 390 | _3e=this._advice.timeout+this.expectedNetworkDelay; |
||
| 391 | } |
||
| 392 | if(this.connectTimeout>0&&this.connectTimeout<_3e){ |
||
| 393 | return this.connectTimeout; |
||
| 394 | } |
||
| 395 | return _3e;
|
||
| 396 | }; |
||
| 397 | },connectionTypes:new dojo.AdapterRegistry(true)}; |
||
| 398 | dojox.cometd.Connection.call(dojox.cometd,"/cometd");
|
||
| 399 | dojo.addOnUnload(dojox.cometd,"_onUnload");
|
||
| 400 | } |