@synerty/vortexjs
Version:
Custom observable data serialisation and routing based on Angular 2+
233 lines • 33.7 kB
JavaScript
import { Injectable } from "@angular/core";
import { dateStr } from "../UtilMisc";
import { Payload } from "../Payload";
import { TupleActionStorageServiceABC } from "./TupleActionStorageServiceABC";
import { addIndexedDbHandlers, IDBException, indexedDB, } from "../storage-api/indexeddb-api";
import * as i0 from "@angular/core";
// ----------------------------------------------------------------------------
function now() {
return new Date();
}
const DB_NAME = "tupleActions";
const ACTION_STORE = "tupleActions";
const ACTION_KEY_PATH = "scopeUuid";
/** Tuple Storage IndexedDB
*
* This class handles storing and retrieving tuples to/from indexed db.
*
*/
export class TupleActionStorageIndexedDbService extends TupleActionStorageServiceABC {
db;
openInProgressPromise = null;
RETRIES = 5;
RETRY_DELAY_MS = 100;
constructor() {
super();
}
async storeAction(scope, tupleAction, payload) {
await this.open();
let startTime = now();
const vortexMsg = await payload.toEncodedPayload();
const item = {
scope: scope,
scopeUuid: `${scope}|${tupleAction.uuid}`,
encodedPayload: vortexMsg,
};
let timeTaken = now() - startTime;
console.log(`${dateStr()} IndexedDB: toVortexMsg took ${timeTaken}ms `);
startTime = now();
await new Promise(async (resolve, reject) => {
try {
const tx = await this.transaction(true);
let store = tx.objectStore(ACTION_STORE);
let response = store.put(item);
addIndexedDbHandlers(response, () => {
tx.abort();
reject(`${dateStr()} IndexedDB: saveTuples "put" error`);
throw new IDBException("Put error");
});
response.onsuccess = () => {
tx.oncomplete = () => {
let timeTaken = now() - startTime;
console.log(`${dateStr()} IndexedDB: storeAction` +
` took ${timeTaken}ms (in thread)`);
resolve();
};
tx.onerror = () => {
reject(`${dateStr()} IndexedDB: Transaction failed to commit`);
};
};
}
catch (e) {
reject(`${dateStr()} IndexedDB: Transaction failed: ${e}`);
}
});
}
async loadNextAction() {
await this.open();
const encodedPayload = await new Promise(async (resolve, reject) => {
try {
const tx = await this.transaction(false); // Changed to readonly
const store = tx.objectStore(ACTION_STORE);
const response = store.openCursor();
addIndexedDbHandlers(response, () => {
tx.abort();
reject(`${dateStr()} IndexedDB: loadNextAction cursor error`);
throw new IDBException("Cursor error");
});
response.onsuccess = (ev) => {
const cursor = response.result || ev.target.result;
if (!cursor) {
resolve(null);
return;
}
resolve(cursor.value.encodedPayload);
tx.abort();
};
tx.onerror = () => {
reject(`${dateStr()} IndexedDB: Transaction failed`);
};
}
catch (e) {
reject(`${dateStr()} IndexedDB: Transaction failed: ${e}`);
}
});
if (encodedPayload == null)
return null;
return await Payload.fromEncodedPayload(encodedPayload);
}
async countActions() {
await this.open();
return new Promise(async (resolve, reject) => {
try {
const tx = await this.transaction(false);
const response = tx.objectStore(ACTION_STORE).count();
addIndexedDbHandlers(response, () => {
tx.abort();
reject(`${dateStr()} IndexedDB: countActions error`);
throw new IDBException("Count error");
});
response.onsuccess = () => {
resolve(response.result);
};
tx.onerror = () => {
reject(`${dateStr()} IndexedDB: Transaction failed`);
};
}
catch (e) {
reject(`${dateStr()} IndexedDB: Transaction failed: ${e}`);
}
});
}
async deleteAction(scope, actionUuid) {
await this.open();
const scopeUuid = `${scope}|${actionUuid}`;
await new Promise(async (resolve, reject) => {
try {
const tx = await this.transaction(true);
const response = tx.objectStore(ACTION_STORE).delete(scopeUuid);
addIndexedDbHandlers(response, () => {
tx.abort();
reject(`${dateStr()} IndexedDB: deleteAction error`);
throw new IDBException("Delete error");
});
response.onsuccess = () => {
tx.oncomplete = () => resolve();
tx.onerror = () => {
reject(`${dateStr()} IndexedDB: Transaction failed to commit`);
};
};
}
catch (e) {
reject(`${dateStr()} IndexedDB: Transaction failed: ${e}`);
}
});
}
// ----------------------------------------------------------------------------
// Open the indexed db database
open() {
if (this.isOpen())
return Promise.resolve();
if (this.openInProgressPromise != null)
return this.openInProgressPromise;
this.openInProgressPromise = new Promise((resolve, reject) => {
let request = indexedDB.open(DB_NAME, 1);
addIndexedDbHandlers(request, () => {
let msg = `${dateStr()} IndexedDB : "${DB_NAME}" Failed to open IndexedDB database`;
this.openInProgressPromise = null;
reject(msg);
throw new IDBException(msg);
});
request.onsuccess = (event) => {
console.log(`${dateStr()} IndexedDB : "${DB_NAME}" Success opening DB`);
if (this.db == null) {
this.db = event.target.result;
this.openInProgressPromise = null;
resolve();
}
};
request.onupgradeneeded = (event) => {
console.log(`${dateStr()} IndexedDB : "${DB_NAME}" Upgrading`);
let db = event.target.result;
// SCHEMA for database points
// Schema Version 1
db.createObjectStore(ACTION_STORE, {
keyPath: ACTION_KEY_PATH,
});
console.log(`${dateStr()} IndexedDB : "${DB_NAME}" Upgrade Success`);
};
});
return this.openInProgressPromise;
}
// ----------------------------------------------------------------------------
// Check if the DB is open
isOpen() {
return this.db != null;
}
close() {
if (!this.isOpen()) {
throw new Error(`IndexedDB "${DB_NAME}" is not open`);
}
this.db.close();
this.db = null;
}
async delay(ms) {
return new Promise((resolve) => setTimeout(resolve, ms));
}
async transaction(forWrite) {
let retries = this.RETRIES;
while (true) {
try {
// Get the Read Only case out the way, it's easy
return this.db.transaction(ACTION_STORE, forWrite ? "readwrite" : "readonly");
}
catch (e) {
retries -= 1;
if (!retries) {
const msg = `ERROR: Failed to create transaction after ${this.RETRIES} attempts: ${e.toString()}`;
console.log(msg);
throw new Error(msg);
}
if (e.toString().indexOf("The database is closing") !== -1) {
try {
this.close();
// Add delay before reopening to allow cleanup
await this.delay(this.RETRY_DELAY_MS);
await this.open();
console.log(`${dateStr()} IndexedDB: Reopened database after closure`);
}
catch (reopenError) {
console.error(`${dateStr()} IndexedDB: Failed to reopen database:`, reopenError);
throw reopenError;
}
}
}
}
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TupleActionStorageIndexedDbService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TupleActionStorageIndexedDbService });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TupleActionStorageIndexedDbService, decorators: [{
type: Injectable
}], ctorParameters: function () { return []; } });
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{ Injectable } from \"@angular/core\";\nimport { dateStr } from \"../UtilMisc\";\nimport { Payload } from \"../Payload\";\nimport { TupleActionStorageServiceABC } from \"./TupleActionStorageServiceABC\";\nimport {\n    addIndexedDbHandlers,\n    IDBException,\n    indexedDB,\n} from \"../storage-api/indexeddb-api\";\nimport { TupleActionABC } from \"../TupleAction\";\n\n// ----------------------------------------------------------------------------\n\nfunction now(): any {\n    return new Date();\n}\n\nconst DB_NAME = \"tupleActions\";\nconst ACTION_STORE = \"tupleActions\";\nconst ACTION_KEY_PATH = \"scopeUuid\";\n\ninterface TupleActionStorageStructI {\n    scope: string;\n    scopeUuid: string;\n    encodedPayload: string;\n}\n\n/** Tuple Storage IndexedDB\n *\n * This class handles storing and retrieving tuples to/from indexed db.\n *\n */\n@Injectable()\nexport class TupleActionStorageIndexedDbService extends TupleActionStorageServiceABC {\n    private db: any;\n    private openInProgressPromise: Promise<void> | null = null;\n    private readonly RETRIES = 5;\n    private readonly RETRY_DELAY_MS = 100;\n\n    constructor() {\n        super();\n    }\n\n    async storeAction(\n        scope: string,\n        tupleAction: TupleActionABC,\n        payload: Payload,\n    ): Promise<void> {\n        await this.open();\n        let startTime = now();\n\n        const vortexMsg = await payload.toEncodedPayload();\n\n        const item: TupleActionStorageStructI = {\n            scope: scope,\n            scopeUuid: `${scope}|${tupleAction.uuid}`,\n            encodedPayload: vortexMsg,\n        };\n\n        let timeTaken = now() - startTime;\n        console.log(`${dateStr()} IndexedDB: toVortexMsg took ${timeTaken}ms `);\n\n        startTime = now();\n\n        await new Promise<void>(async (resolve, reject) => {\n            try {\n                const tx = await this.transaction(true);\n                let store = tx.objectStore(ACTION_STORE);\n                let response = store.put(item);\n\n                addIndexedDbHandlers(response, () => {\n                    tx.abort();\n                    reject(`${dateStr()} IndexedDB: saveTuples \"put\" error`);\n                    throw new IDBException(\"Put error\");\n                });\n\n                response.onsuccess = () => {\n                    tx.oncomplete = () => {\n                        let timeTaken = now() - startTime;\n                        console.log(\n                            `${dateStr()} IndexedDB: storeAction` +\n                                ` took ${timeTaken}ms (in thread)`,\n                        );\n                        resolve();\n                    };\n\n                    tx.onerror = () => {\n                        reject(\n                            `${dateStr()} IndexedDB: Transaction failed to commit`,\n                        );\n                    };\n                };\n            } catch (e) {\n                reject(`${dateStr()} IndexedDB: Transaction failed: ${e}`);\n            }\n        });\n    }\n\n    async loadNextAction(): Promise<Payload | null> {\n        await this.open();\n        const encodedPayload = await new Promise<string>(\n            async (resolve, reject) => {\n                try {\n                    const tx = await this.transaction(false); // Changed to readonly\n                    const store = tx.objectStore(ACTION_STORE);\n                    const response = store.openCursor();\n\n                    addIndexedDbHandlers(response, () => {\n                        tx.abort();\n                        reject(\n                            `${dateStr()} IndexedDB: loadNextAction cursor error`,\n                        );\n                        throw new IDBException(\"Cursor error\");\n                    });\n\n                    response.onsuccess = (ev) => {\n                        const cursor = response.result || ev.target.result;\n                        if (!cursor) {\n                            resolve(null);\n                            return;\n                        }\n                        resolve(cursor.value.encodedPayload);\n                        tx.abort();\n                    };\n\n                    tx.onerror = () => {\n                        reject(`${dateStr()} IndexedDB: Transaction failed`);\n                    };\n                } catch (e) {\n                    reject(`${dateStr()} IndexedDB: Transaction failed: ${e}`);\n                }\n            },\n        );\n\n        if (encodedPayload == null) return null;\n        return await Payload.fromEncodedPayload(encodedPayload);\n    }\n\n    async countActions(): Promise<number> {\n        await this.open();\n        return new Promise<number>(async (resolve, reject) => {\n            try {\n                const tx = await this.transaction(false);\n                const response = tx.objectStore(ACTION_STORE).count();\n\n                addIndexedDbHandlers(response, () => {\n                    tx.abort();\n                    reject(`${dateStr()} IndexedDB: countActions error`);\n                    throw new IDBException(\"Count error\");\n                });\n\n                response.onsuccess = () => {\n                    resolve(response.result);\n                };\n\n                tx.onerror = () => {\n                    reject(`${dateStr()} IndexedDB: Transaction failed`);\n                };\n            } catch (e) {\n                reject(`${dateStr()} IndexedDB: Transaction failed: ${e}`);\n            }\n        });\n    }\n\n    async deleteAction(scope: string, actionUuid: string): Promise<void> {\n        await this.open();\n        const scopeUuid = `${scope}|${actionUuid}`;\n\n        await new Promise<void>(async (resolve, reject) => {\n            try {\n                const tx = await this.transaction(true);\n                const response = tx.objectStore(ACTION_STORE).delete(scopeUuid);\n\n                addIndexedDbHandlers(response, () => {\n                    tx.abort();\n                    reject(`${dateStr()} IndexedDB: deleteAction error`);\n                    throw new IDBException(\"Delete error\");\n                });\n\n                response.onsuccess = () => {\n                    tx.oncomplete = () => resolve();\n                    tx.onerror = () => {\n                        reject(\n                            `${dateStr()} IndexedDB: Transaction failed to commit`,\n                        );\n                    };\n                };\n            } catch (e) {\n                reject(`${dateStr()} IndexedDB: Transaction failed: ${e}`);\n            }\n        });\n    }\n\n    // ----------------------------------------------------------------------------\n    // Open the indexed db database\n    open(): Promise<void> {\n        if (this.isOpen()) return Promise.resolve();\n\n        if (this.openInProgressPromise != null)\n            return this.openInProgressPromise;\n\n        this.openInProgressPromise = new Promise<void>((resolve, reject) => {\n            let request = indexedDB.open(DB_NAME, 1);\n\n            addIndexedDbHandlers(request, () => {\n                let msg = `${dateStr()} IndexedDB : \"${DB_NAME}\" Failed to open IndexedDB database`;\n                this.openInProgressPromise = null;\n                reject(msg);\n                throw new IDBException(msg);\n            });\n\n            request.onsuccess = (event) => {\n                console.log(\n                    `${dateStr()} IndexedDB : \"${DB_NAME}\" Success opening DB`,\n                );\n                if (this.db == null) {\n                    this.db = event.target.result;\n                    this.openInProgressPromise = null;\n                    resolve();\n                }\n            };\n\n            request.onupgradeneeded = (event) => {\n                console.log(`${dateStr()} IndexedDB : \"${DB_NAME}\" Upgrading`);\n                let db = event.target.result;\n\n                // SCHEMA for database points\n                // Schema Version 1\n                db.createObjectStore(ACTION_STORE, {\n                    keyPath: ACTION_KEY_PATH,\n                });\n\n                console.log(\n                    `${dateStr()} IndexedDB : \"${DB_NAME}\" Upgrade Success`,\n                );\n            };\n        });\n        return this.openInProgressPromise;\n    }\n\n    // ----------------------------------------------------------------------------\n    // Check if the DB is open\n    isOpen(): boolean {\n        return this.db != null;\n    }\n\n    close(): void {\n        if (!this.isOpen()) {\n            throw new Error(`IndexedDB \"${DB_NAME}\" is not open`);\n        }\n        this.db.close();\n        this.db = null;\n    }\n\n    private async delay(ms: number): Promise<void> {\n        return new Promise((resolve) => setTimeout(resolve, ms));\n    }\n\n    private async transaction(forWrite: boolean): Promise<any> {\n        let retries = this.RETRIES;\n        while (true) {\n            try {\n                // Get the Read Only case out the way, it's easy\n                return this.db.transaction(\n                    ACTION_STORE,\n                    forWrite ? \"readwrite\" : \"readonly\",\n                );\n            } catch (e) {\n                retries -= 1;\n                if (!retries) {\n                    const msg = `ERROR: Failed to create transaction after ${this.RETRIES} attempts: ${e.toString()}`;\n                    console.log(msg);\n                    throw new Error(msg);\n                }\n\n                if (e.toString().indexOf(\"The database is closing\") !== -1) {\n                    try {\n                        this.close();\n                        // Add delay before reopening to allow cleanup\n                        await this.delay(this.RETRY_DELAY_MS);\n                        await this.open();\n                        console.log(\n                            `${dateStr()} IndexedDB: Reopened database after closure`,\n                        );\n                    } catch (reopenError) {\n                        console.error(\n                            `${dateStr()} IndexedDB: Failed to reopen database:`,\n                            reopenError,\n                        );\n                        throw reopenError;\n                    }\n                }\n            }\n        }\n    }\n}\n"]}