@synerty/vortexjs
Version:
Custom observable data serialisation and routing based on Angular 2+
128 lines • 19.8 kB
JavaScript
import { Inject, Injectable } from "@angular/core";
import { VortexStatusService } from "../VortexStatusService";
import { VortexService } from "../VortexService";
import { errToStr } from "../UtilMisc";
import { PayloadResponse } from "../PayloadResponse";
import { TupleStorageFactoryService } from "../storage-factory/TupleStorageFactoryService";
import { filter } from "rxjs/operators";
import * as i0 from "@angular/core";
export class TupleActionPushOfflineSingletonService {
vortexService;
vortexStatus;
factoryService;
storage;
sendingTuple = false;
lastSendFailTime = null;
SEND_FAIL_RETRY_TIMEOUT = 5000; // milliseconds
SERVER_PROCESSING_TIMEOUT = 5000; // milliseconds
SEND_FAIL_RETRY_BACKOFF = 5000; // milliseconds
constructor(vortexService, vortexStatus, factoryService) {
this.vortexService = vortexService;
this.vortexStatus = vortexStatus;
this.factoryService = factoryService;
this.storage = factoryService.createActionStorage();
// This is a global service, there is no point unsubscribing it
this.vortexStatus.isOnline
.pipe(filter(online => online === true))
.subscribe(online => this.sendNextAction());
this.storage.countActions()
.then(count => {
this.vortexStatus.setQueuedActionCount(count);
})
.catch(err => {
let errStr = errToStr(err);
let msg = `Failed to count actions : ${errStr}`;
this.vortexStatus.logError(msg);
})
.then(() => this.sendNextAction());
}
queueAction(scope, tupleAction, payload) {
return this.storage
.storeAction(scope, tupleAction, payload)
.then(() => {
this.vortexStatus.incrementQueuedActionCount();
this.sendNextAction();
})
.catch((err) => {
let errStr = errToStr(err);
let msg = `Failed to store action : ${errStr}`;
console.log(msg);
throw new Error(msg);
});
}
sendNextAction() {
if (this.sendingTuple)
return;
if (!this.vortexStatus.snapshot.isOnline)
return;
// Don't continually retry, if we have a last send fail, ensure we wait
// {SEND_FAIL_RETRY_BACKOFF} before sending again.
if (this.lastSendFailTime != null) {
let reconnectDiffMs = Date.now() - this.lastSendFailTime;
if (reconnectDiffMs < this.SEND_FAIL_RETRY_BACKOFF) {
// +10ms to ensure we're just out of the backoff time.
setTimeout(() => this.sendNextAction(), this.SEND_FAIL_RETRY_BACKOFF - reconnectDiffMs + 10);
return;
}
else {
this.lastSendFailTime = null;
}
}
this.sendingTuple = true;
// Get the next tuple from the persistent queue
this.storage.loadNextAction()
// If this was successful?
.then((sendPayload) => {
// Is the end the end of the queue?
if (sendPayload == null) {
this.sendingTuple = false;
return;
}
return sendPayload.makePayloadEnvelope()
.then((sendPayloadEnvelope) => {
let uuid = sendPayload.tuples[0].uuid;
let scope = sendPayload.filt["name"];
return new PayloadResponse(this.vortexService, sendPayloadEnvelope, PayloadResponse.RESPONSE_TIMEOUT_SECONDS, // Timeout
false // don't check result, only reject if it times out
).then(responsePayload => {
// If we received a payload, but it has an error message
// Log an error, it's out of our hands, move on.
let r = responsePayload.result; // success is null or true
if (!(r == null || r === true)) {
this.vortexStatus.logError("Server failed to process Action: " + responsePayload.result.toString());
}
this.storage.deleteAction(scope, uuid)
.then(() => {
this.vortexStatus.decrementQueuedActionCount();
});
this.sendingTuple = false;
this.sendNextAction();
});
});
})
// Or catch and handle any of the errors from either loading or sending
.catch(err => {
this.lastSendFailTime = Date.now();
let errStr = errToStr(err);
console.error(`Failed to send TupleAction : ${errStr}\nRetrying in ${this.SEND_FAIL_RETRY_TIMEOUT / 1000} seconds`);
this.sendingTuple = false;
setTimeout(() => this.sendNextAction(), this.SEND_FAIL_RETRY_TIMEOUT);
return null; // Handle the error
});
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TupleActionPushOfflineSingletonService, deps: [{ token: VortexService }, { token: VortexStatusService }, { token: TupleStorageFactoryService }], target: i0.ɵɵFactoryTarget.Injectable });
static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TupleActionPushOfflineSingletonService });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TupleActionPushOfflineSingletonService, decorators: [{
type: Injectable
}], ctorParameters: function () { return [{ type: undefined, decorators: [{
type: Inject,
args: [VortexService]
}] }, { type: undefined, decorators: [{
type: Inject,
args: [VortexStatusService]
}] }, { type: undefined, decorators: [{
type: Inject,
args: [TupleStorageFactoryService]
}] }]; } });
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{ Inject, Injectable } from \"@angular/core\"\nimport { VortexStatusService } from \"../VortexStatusService\"\nimport { TupleActionABC } from \"../TupleAction\"\nimport { Payload } from \"../Payload\"\nimport { VortexService } from \"../VortexService\"\nimport { errToStr } from \"../UtilMisc\"\nimport { PayloadResponse } from \"../PayloadResponse\"\nimport { TupleStorageFactoryService } from \"../storage-factory/TupleStorageFactoryService\"\nimport { TupleActionStorageServiceABC } from \"../action-storage/TupleActionStorageServiceABC\"\nimport { PayloadEnvelope } from \"../PayloadEnvelope\"\nimport { filter } from \"rxjs/operators\"\n\n@Injectable()\nexport class TupleActionPushOfflineSingletonService {\n    private storage: TupleActionStorageServiceABC\n    private sendingTuple = false\n    private lastSendFailTime: null | number = null\n    \n    private SEND_FAIL_RETRY_TIMEOUT = 5000// milliseconds\n    private SERVER_PROCESSING_TIMEOUT = 5000// milliseconds\n    private SEND_FAIL_RETRY_BACKOFF = 5000 // milliseconds\n    \n    constructor(\n        @Inject(VortexService) private vortexService,\n        @Inject(VortexStatusService) private vortexStatus,\n        @Inject(TupleStorageFactoryService) private factoryService,\n    ) {\n        this.storage = factoryService.createActionStorage()\n        \n        // This is a global service, there is no point unsubscribing it\n        this.vortexStatus.isOnline\n            .pipe(filter(online => online === true))\n            .subscribe(online => this.sendNextAction())\n        \n        this.storage.countActions()\n            .then(count => {\n                this.vortexStatus.setQueuedActionCount(count)\n            })\n            .catch(err => {\n                let errStr = errToStr(err)\n                let msg = `Failed to count actions : ${errStr}`\n                this.vortexStatus.logError(msg)\n            })\n            .then(() => this.sendNextAction())\n    }\n    \n    queueAction(\n        scope: string,\n        tupleAction: TupleActionABC,\n        payload: Payload\n    ): Promise<void> {\n        return this.storage\n            .storeAction(scope, tupleAction, payload)\n            .then(() => {\n                this.vortexStatus.incrementQueuedActionCount()\n                this.sendNextAction()\n            })\n            .catch((err) => {\n                let errStr = errToStr(err)\n                let msg = `Failed to store action : ${errStr}`\n                console.log(msg)\n                throw new Error(msg)\n            })\n    }\n    \n    private sendNextAction() {\n        if (this.sendingTuple)\n            return\n        \n        if (!this.vortexStatus.snapshot.isOnline)\n            return\n        \n        // Don't continually retry, if we have a last send fail, ensure we wait\n        // {SEND_FAIL_RETRY_BACKOFF} before sending again.\n        if (this.lastSendFailTime != null) {\n            let reconnectDiffMs = Date.now() - this.lastSendFailTime\n            \n            if (reconnectDiffMs < this.SEND_FAIL_RETRY_BACKOFF) {\n                // +10ms to ensure we're just out of the backoff time.\n                setTimeout(() => this.sendNextAction(),\n                    this.SEND_FAIL_RETRY_BACKOFF - reconnectDiffMs + 10)\n                return\n                \n            }\n            else {\n                this.lastSendFailTime = null\n                \n            }\n        }\n        \n        this.sendingTuple = true\n        \n        // Get the next tuple from the persistent queue\n        this.storage.loadNextAction()\n            \n            // If this was successful?\n            .then((sendPayload: Payload) => {\n                // Is the end the end of the queue?\n                if (sendPayload == null) {\n                    this.sendingTuple = false\n                    return\n                }\n                return sendPayload.makePayloadEnvelope()\n                    .then((sendPayloadEnvelope: PayloadEnvelope) => {\n                        \n                        let uuid = (<TupleActionABC>sendPayload.tuples[0]).uuid\n                        let scope = sendPayload.filt[\"name\"]\n                        \n                        return new PayloadResponse(this.vortexService,\n                            sendPayloadEnvelope,\n                            PayloadResponse.RESPONSE_TIMEOUT_SECONDS, // Timeout\n                            false // don't check result, only reject if it times out\n                        ).then(responsePayload => {\n                            // If we received a payload, but it has an error message\n                            // Log an error, it's out of our hands, move on.\n                            let r = responsePayload.result // success is null or true\n                            if (!(r == null || r === true)) {\n                                this.vortexStatus.logError(\n                                    \"Server failed to process Action: \" + responsePayload.result.toString())\n                            }\n                            \n                            this.storage.deleteAction(scope, uuid)\n                                .then(() => {\n                                    this.vortexStatus.decrementQueuedActionCount()\n                                })\n                            this.sendingTuple = false\n                            this.sendNextAction()\n                        })\n                    })\n                \n            })\n            \n            // Or catch and handle any of the errors from either loading or sending\n            .catch(err => {\n                this.lastSendFailTime = Date.now()\n                \n                let errStr = errToStr(err)\n                console.error(\n                    `Failed to send TupleAction : ${errStr}\\nRetrying in ${this.SEND_FAIL_RETRY_TIMEOUT/1000} seconds`\n                )\n                this.sendingTuple = false\n                setTimeout(() => this.sendNextAction(), this.SEND_FAIL_RETRY_TIMEOUT)\n                return null // Handle the error\n            })\n    }\n}\n\n"]}