72 lines
2.3 KiB
Kotlin
72 lines
2.3 KiB
Kotlin
/*
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* Nextcloud Android client application
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*
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* @author Chris Narkiewicz
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* Copyright (C) 2019 Chris Narkiewicz <hello@ezaquarii.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.nextcloud.client.core
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import android.os.Handler
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import java.util.concurrent.ScheduledThreadPoolExecutor
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/**
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* This async runner uses [java.util.concurrent.ScheduledThreadPoolExecutor] to run tasks
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* asynchronously.
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*
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* Tasks are run on multi-threaded pool. If serialized execution is desired, set [corePoolSize] to 1.
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*/
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internal class ThreadPoolAsyncRunner(
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private val uiThreadHandler: Handler,
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corePoolSize: Int,
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val tag: String = "default"
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) : AsyncRunner {
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private val executor = ScheduledThreadPoolExecutor(corePoolSize)
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override fun <T> postQuickTask(
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task: () -> T,
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onResult: OnResultCallback<T>?,
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onError: OnErrorCallback?
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): Cancellable {
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val taskAdapter = { _: OnProgressCallback<Void>, _: IsCancelled -> task.invoke() }
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return postTask(
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taskAdapter,
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onResult,
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onError,
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null
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)
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}
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override fun <T, P> postTask(
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task: TaskFunction<T, P>,
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onResult: OnResultCallback<T>?,
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onError: OnErrorCallback?,
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onProgress: OnProgressCallback<P>?
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): Cancellable {
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val remove: Function1<Runnable, Boolean> = executor::remove
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val taskWrapper = Task(
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postResult = uiThreadHandler::post,
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removeFromQueue = remove,
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taskBody = task,
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onSuccess = onResult,
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onError = onError,
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onProgress = onProgress
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)
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executor.execute(taskWrapper)
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return taskWrapper
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}
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}
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