ImageKnife/library/src/main/ets/queue/DefaultJobQueue.ets

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/*
* Copyright (C) 2024 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the 'License');
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an 'AS IS' BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { ImageKnifeRequest } from '../model/ImageKnifeRequest';
import { IJobQueue } from './IJobQueue'
import Queue from '@ohos.util.Queue';
import { taskpool,Stack } from '@kit.ArkTS';
export class DefaultJobQueue implements IJobQueue {
highQueue: Stack<ImageKnifeRequest> = new Stack();
normalQueue: Stack<ImageKnifeRequest> = new Stack();
lowQueue: Stack<ImageKnifeRequest> = new Stack();
getQueueLength(): number {
return this.highQueue.length + this.normalQueue.length + this.lowQueue.length
}
add(request: ImageKnifeRequest): void {
if (request.imageKnifeOption.priority === undefined || request.imageKnifeOption.priority === taskpool.Priority.MEDIUM) {
this.normalQueue.push(request)
} else if (request.imageKnifeOption.priority === taskpool.Priority.HIGH) {
this.highQueue.push(request)
} else {
this.lowQueue.push(request)
}
}
pop(): ImageKnifeRequest | undefined {
if (this.highQueue.length > 0) {
return this.highQueue.pop()
} else if (this.normalQueue.length > 0) {
return this.normalQueue.pop()
} else {
return this.lowQueue.pop()
}
}
}