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https://github.com/hcengineering/platform.git
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100 lines
3.4 KiB
TypeScript
100 lines
3.4 KiB
TypeScript
//
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// Copyright © 2024 Hardcore Engineering Inc.
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//
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// Licensed under the Eclipse Public License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License. You may
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// obtain a copy of the License at https://www.eclipse.org/legal/epl-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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//
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import core, {
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DOMAIN_TRANSIENT,
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DOMAIN_TX,
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generateId,
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TxProcessor,
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WorkspaceEvent,
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type Doc,
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type MeasureContext,
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type SessionData,
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type Tx,
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type TxCUD,
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type TxResult,
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type TxWorkspaceEvent
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} from '@hcengineering/core'
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import { PlatformError, unknownError } from '@hcengineering/platform'
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import type { DBAdapterManager, Middleware, PipelineContext, TxMiddlewareResult } from '@hcengineering/server-core'
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import { BaseMiddleware } from '@hcengineering/server-core'
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/**
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* Will store transactions to tx adapter
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* @public
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*/
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export class TxMiddleware extends BaseMiddleware implements Middleware {
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adapterManager!: DBAdapterManager
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static async create (ctx: MeasureContext, context: PipelineContext, next?: Middleware): Promise<Middleware> {
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const middleware = new TxMiddleware(context, next)
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if (context.adapterManager == null) {
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throw new PlatformError(unknownError('Adapter manager should be specified'))
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}
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middleware.adapterManager = context.adapterManager
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return middleware
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}
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async init (ctx: MeasureContext): Promise<void> {}
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async tx (ctx: MeasureContext, txes: Tx[]): Promise<TxMiddlewareResult> {
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const txToStore: Tx[] = []
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for (const tx of txes) {
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if (TxProcessor.isExtendsCUD(tx._class)) {
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if (tx.space !== core.space.DerivedTx || tx.objectSpace === core.space.Model) {
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const objectClass = (tx as TxCUD<Doc>).objectClass
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if (
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objectClass !== core.class.BenchmarkDoc &&
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this.context.hierarchy.findDomain(objectClass) !== DOMAIN_TRANSIENT
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) {
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txToStore.push(tx)
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}
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}
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}
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}
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let txPromise: Promise<TxResult[]> | undefined
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if (txToStore.length > 0) {
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txPromise = ctx.with(
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'domain-tx',
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{},
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(ctx) => this.adapterManager.getAdapter(DOMAIN_TX, true).tx(ctx, ...txToStore),
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{
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count: txToStore.length,
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txes: Array.from(new Set(txToStore.map((it) => it._class)))
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}
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)
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// We need to remember last Tx Id in context, so it will be used during reconnect to track a requirement for refresh.
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this.context.lastTx = txToStore[txToStore.length - 1]._id
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// We need to deliver information to all clients so far.
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const evt: TxWorkspaceEvent = {
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_class: core.class.TxWorkspaceEvent,
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_id: generateId(),
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event: WorkspaceEvent.LastTx,
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modifiedBy: core.account.System,
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modifiedOn: Date.now(),
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objectSpace: core.space.DerivedTx,
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space: core.space.DerivedTx,
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params: {
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lastTx: this.context.lastTx
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}
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}
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;(ctx.contextData as SessionData).broadcast.txes.push(evt)
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}
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if (txPromise !== undefined) {
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await txPromise
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}
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return await this.provideTx(ctx, txes)
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}
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}
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