@dasf/dasf-messaging/dist/dasf-messaging.umd.cjs

Typescript bindings for the DASF RPC messaging protocol.

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this.status=="running"}isComplete(){return!this.isRunning()}},d([h.JsonProperty("report_type",String)],o.DASFProgressReport.prototype,"report_type",2),d([h.JsonProperty("report_id",String)],o.DASFProgressReport.prototype,"report_id",2),d([h.JsonProperty("step_message",String)],o.DASFProgressReport.prototype,"step_message",2),d([h.JsonProperty("steps",Number)],o.DASFProgressReport.prototype,"steps",2),d([h.JsonProperty("status",String)],o.DASFProgressReport.prototype,"status",2),d([h.JsonProperty("children",[o.DASFProgressReport])],o.DASFProgressReport.prototype,"children",2),o.DASFProgressReport=d([h.JsonObject("DASFProgressReport")],o.DASFProgressReport);let I=class{serialize(t){return JSON.stringify(t)}deserialize(t){return t}};I=d([h.JsonConverter],I),o.FunctionApiInfo=class{constructor(){u(this,"name","");u(this,"rpcSchema",{});u(this,"returnSchema",{})}},d([h.JsonProperty("name",String)],o.FunctionApiInfo.prototype,"name",2),d([h.JsonProperty("rpc_schema",I)],o.FunctionApiInfo.prototype,"rpcSchema",2),d([h.JsonProperty("return_schema",I)],o.FunctionApiInfo.prototype,"returnSchema",2),o.FunctionApiInfo=d([h.JsonObject("FunctionApiInfo")],o.FunctionApiInfo),o.ClassApiInfo=class{constructor(){u(this,"name","");u(this,"rpcSchema",{});u(this,"methods",[])}},d([h.JsonProperty("name",String)],o.ClassApiInfo.prototype,"name",2),d([h.JsonProperty("rpc_schema",I)],o.ClassApiInfo.prototype,"rpcSchema",2),d([h.JsonProperty("methods",[o.FunctionApiInfo])],o.ClassApiInfo.prototype,"methods",2),o.ClassApiInfo=d([h.JsonObject("ClassApiInfo")],o.ClassApiInfo),o.ModuleApiInfo=class{constructor(){u(this,"classes",[]);u(this,"functions",[]);u(this,"rpcSchema",{})}},d([h.JsonProperty("classes",[o.ClassApiInfo])],o.ModuleApiInfo.prototype,"classes",2),d([h.JsonProperty("functions",[o.FunctionApiInfo])],o.ModuleApiInfo.prototype,"functions",2),d([h.JsonProperty("rpc_schema",I)],o.ModuleApiInfo.prototype,"rpcSchema",2),o.ModuleApiInfo=d([h.JsonObject("ModuleApiInfo")],o.ModuleApiInfo);class ${constructor(r,a){u(this,"outgoingChannel");u(this,"incomingChannel");u(this,"DASFProducerURL");u(this,"DASFConsumerURL");u(this,"consumeTopic");u(this,"jsonCoder");u(this,"contextCounter",0);u(this,"responseResolvers",new Map);u(this,"progressCallbacks",new Map);u(this,"responseRejectHandler",new Map);u(this,"finishedContexts",new Set);u(this,"contextResponseFragments",new Map);u(this,"pendingRequests",[]);u(this,"waitingForPong",!1);u(this,"connectionTimeout",1e4);u(this,"connectionError","");u(this,"onConnectionError");u(this,"startedReconnectOutgoing",!0);u(this,"startedReconnectIncoming",!0);this.onConnectionError=a,this.consumeTopic=r.consumeTopic,this.DASFProducerURL=r.DASFProducerURL,this.DASFConsumerURL=r.DASFConsumerURL,this.jsonCoder=new h.JsonConvert,this.connect(),setInterval(()=>this.checkConnection(),this.connectionTimeout)}connect(){this.startedReconnectIncoming=!0,this.startedReconnectOutgoing=!0,this.outgoingChannel=new WebSocket(this.DASFProducerURL),this.incomingChannel=new WebSocket(this.DASFConsumerURL),this.registerListener()}isConnected(){return this.outgoingChannel&&this.incomingChannel&&this.outgoingChannel.readyState==WebSocket.OPEN&&this.incomingChannel.readyState==WebSocket.OPEN}isConnecting(){return this.outgoingChannel&&this.incomingChannel&&this.outgoingChannel.readyState!=WebSocket.OPEN&&this.incomingChannel.readyState!=WebSocket.OPEN}get connected(){const r=(a,f)=>{this.hasConnectionError()?f(new Error(this.connectionError)):this.assureConnected()?a(this):setTimeout(()=>r(a,f),100)};return new Promise(r)}assureConnected(){return this.isConnected()?!0:(this.startedReconnectIncoming||this.startedReconnectOutgoing||this.isConnecting()||this.connect(),!1)}hasPendingRequests(){return this.pendingRequests.length>0}sendPendingRequests(){if(this.hasPendingRequests()){const r=this.pendingRequests.shift();this.outgoingChannel.send(JSON.stringify(r)),setTimeout(()=>this.sendPendingRequests(),200)}}registerListener(){const r=a=>{this.startedReconnectOutgoing=!1,this.startedReconnectIncoming=!1,!this.hasConnectionError()&&this.isConnecting()&&(this.connectionError="Connection to "+a.target.url+" failed.",this.onConnectionError&&this.onConnectionError(this.connectionError))};this.outgoingChannel.addEventListener("error",r),this.incomingChannel.addEventListener("error",r),this.outgoingChannel.addEventListener("open",()=>{this.startedReconnectOutgoing=!1,this.connectionError="",this.outgoingChannel.addEventListener("message",a=>{const f=this.jsonCoder.deserializeObject(JSON.parse(a.data),O);if(f.isOk())this.responseRejectHandler.delete(f.context);else{console.error(f),this.responseResolvers.delete(f.context);const i=this.responseRejectHandler.get(f.context);i?(this.responseRejectHandler.delete(f.context),i(f)):console.error("received error receipt for an unknwon context: "+f.context)}})}),this.incomingChannel.addEventListener("open",()=>{this.startedReconnectIncoming=!1,this.connectionError="",this.incomingChannel.addEventListener("message",a=>{try{const f=JSON.parse(a.data),i=this.jsonCoder.deserializeObject(f,o.DASFModuleResponse);this.acknowledgeMessage(i);const e=i.getRequestContext();if(this.finishedContexts.has(e))return;if(i.getMessageType()==R.Progress){const n=this.jsonCoder.deserializeObject(JSON.parse(atob(f.payload)),o.DASFProgressReport),s=this.progressCallbacks.get(e);s&&s({message:n,props:i.properties})}else{if(i.isFragmented())if(this.contextResponseFragments.has(e)){let s=this.contextResponseFragments.get(e);if(s)if(s.push(i),s.length==i.getNumberOfFragments()){s=s.sort((p,l)=>p.getFragmentId()-l.getFragmentId());let c="";for(const p of s)c+=p.payload;i.payload=c,this.contextResponseFragments.delete(e)}else return}else{this.contextResponseFragments.set(e,[i]);return}const n=this.responseResolvers.get(e);n?(this.responseResolvers.delete(e),this.progressCallbacks.delete(e),this.responseRejectHandler.delete(e),this.finishedContexts.add(e),n(i)):console.warn("received a response for an unknown context: "+e,i)}}catch(f){console.error(f)}})})}checkConnection(){if(this.waitingForPong&&console.warn("Ping to backend module timed out."),this.startedReconnectOutgoing||this.startedReconnectIncoming)return;this.waitingForPong=!0;const r=o.DASFModuleRequest.createPingMessage();this.sendMessage(r).then(()=>{this.waitingForPong=!1,this.sendPendingRequests()}).catch(a=>{console.warn(a.errorMsg)})}async sendRequest(r,a){const f=o.DASFModuleRequest.createRequestMessage(r);return this.sendMessage(f,a).then(i=>i.properties&&i.properties.status=="error"?"Error: "+atob(i.payload):JSON.parse(atob(i.payload)))}async sendMessage(r,a){if(r.context=String(++this.contextCounter),!r.properties)throw new Error("missing request properties");r.properties[E.ResponseTopic]=this.consumeTopic,r.properties[E.RequestContext]=r.context;const{promise:f,resolve:i,reject:e}=Promise.withResolvers();if(!this.hasConnectionError())this.responseResolvers.set(r.context,i),this.responseRejectHandler.set(r.context,e),typeof a<"u"&&this.progressCallbacks.set(r.context,a),this.connected.then(n=>{const s=JSON.stringify(r);n.outgoingChannel.send(s)});else{const n=new O;n.context=r.context,n.errorMsg=this.connectionError,e(n)}return f}acknowledgeMessage(r){const a=this.jsonCoder.serializeObject(new b(r.messageId));this.incomingChannel.send(JSON.stringify(a))}close(){this.outgoingChannel.close(),this.incomingChannel.close()}getModuleInfo(){return this.sendInfoRequest(o.DASFModuleRequest.createInfoMessage(),R.Info)}getApiInfo(){return this.sendInfoRequest(o.DASFModuleRequest.createApiInfoMessage(),R.ApiInfo)}sendInfoRequest(r,a=R.Info){const{promise:f,resolve:i,reject:e}=Promise.withResolvers();return this.sendMessage(r).then(n=>{if(n.properties)try{const s=JSON.parse(n.properties[a]);a==R.ApiInfo?i(this.jsonCoder.deserializeObject(s,o.ModuleApiInfo)):i(s)}catch(s){console.warn(`Unable to retrieve backend module ${a}, got: `,n.properties[a]),e(s)}}),f}hasConnectionError(){return this.connectionError.length>0}}class Q{constructor(r,a,f="",i=""){u(this,"topic");u(this,"consumeTopic");u(this,"DASFConsumerURL");u(this,"DASFProducerURL");this.topic=a,this.consumeTopic=this.generateConsumeTopic(a),this.DASFConsumerURL=(i||this.buildUrl(r,this.consumeTopic))+"/"+this.generateSubscriptionPrefix(),this.DASFProducerURL=f||this.buildUrl(r,this.topic)}buildUrl(r,a){return r+"/"+a}generateConsumeTopic(r){return r+"_"+this.generateRequestToken()}generateSubscriptionPrefix(){return"web-frontend-"+new Date().toISOString()}generateRequestToken(){return Math.random().toString(16).slice(2)}}const w=class w{constructor(r,a,f,i,e="ws"){u(this,"topic");u(this,"consumeTopic");u(this,"DASFConsumerURL");u(this,"DASFProducerURL");this.topic=i,this.consumeTopic=this.generateConsumeTopic(i),this.DASFConsumerURL=this.buildUrl(r,a,f,"consumer",this.consumeTopic,e),this.DASFProducerURL=this.buildUrl(r,a,f,"producer",this.topic,e)}buildUrl(r,a,f,i,e,n){let s=w.BASE_DASF_URL.replace("%host%",r).replace("%port%",a).replace("%namespace%",f).replace("%type%",i).replace("%topic%",e).replace("%protocol%",n);return i=="consumer"&&(s+=this.generateSubscriptionPrefix()+"?subscriptionType=Exclusive"),s}generateConsumeTopic(r){return r+"_"+this.generateRequestToken()}generateSubscriptionPrefix(){return"web-frontend-"+new Date().toISOString()}generateRequestToken(){return Math.random().toString(16).slice(2)}};u(w,"BASE_DASF_URL","%protocol%://%host%:%port%/ws/v2/%type%/non-persistent/public/%namespace%/%topic%/");let L=w;o.DASFConnection=$,o.MessageType=R,o.PropertyKeys=E,o.PulsarUrlBuilder=L,o.Status=z,o.WebsocketUrlBuilder=Q,Object.defineProperty(o,Symbol.toStringTag,{value:"Module"})});