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Move downloadManagerProvider to the constructor level in LcpService
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111 changes: 111 additions & 0 deletions
111
...rc/main/java/org/readium/r2/shared/util/downloads/foreground/ForegroundDownloadManager.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| /* | ||
| * Copyright 2023 Readium Foundation. All rights reserved. | ||
| * Use of this source code is governed by the BSD-style license | ||
| * available in the top-level LICENSE file of the project. | ||
| */ | ||
|
|
||
| package org.readium.r2.shared.util.downloads.foreground | ||
|
|
||
| import java.io.File | ||
| import java.util.UUID | ||
| import kotlinx.coroutines.CoroutineScope | ||
| import kotlinx.coroutines.Dispatchers | ||
| import kotlinx.coroutines.Job | ||
| import kotlinx.coroutines.MainScope | ||
| import kotlinx.coroutines.launch | ||
| import kotlinx.coroutines.withContext | ||
| import org.readium.r2.shared.util.ThrowableError | ||
| import org.readium.r2.shared.util.Try | ||
| import org.readium.r2.shared.util.downloads.DownloadManager | ||
| import org.readium.r2.shared.util.http.HttpClient | ||
| import org.readium.r2.shared.util.http.HttpException | ||
| import org.readium.r2.shared.util.http.HttpRequest | ||
|
|
||
| public class ForegroundDownloadManager( | ||
| private val httpClient: HttpClient, | ||
| private val listener: DownloadManager.Listener | ||
| ) : DownloadManager { | ||
|
|
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| private val coroutineScope: CoroutineScope = | ||
| MainScope() | ||
|
|
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| private val jobs: MutableMap<DownloadManager.RequestId, Job> = | ||
| mutableMapOf() | ||
|
|
||
| override suspend fun submit(request: DownloadManager.Request): DownloadManager.RequestId { | ||
| val requestId = DownloadManager.RequestId(UUID.randomUUID().toString()) | ||
| jobs[requestId] = coroutineScope.launch { doRequest(request, requestId) } | ||
| return requestId | ||
| } | ||
|
|
||
| private suspend fun doRequest(request: DownloadManager.Request, id: DownloadManager.RequestId) { | ||
| val response = httpClient.fetch( | ||
| HttpRequest( | ||
| url = request.url.toString(), | ||
| headers = request.headers.mapValues { it.value.joinToString(",") } | ||
| ) | ||
| ) | ||
|
|
||
| val dottedExtension = request.url.extension | ||
| ?.let { ".$it" } | ||
| .orEmpty() | ||
|
|
||
| when (response) { | ||
| is Try.Success -> { | ||
| withContext(Dispatchers.IO) { | ||
| try { | ||
| val dest = File.createTempFile( | ||
| UUID.randomUUID().toString(), | ||
| dottedExtension | ||
| ) | ||
| dest.writeBytes(response.value.body) | ||
| } catch (e: Exception) { | ||
| val error = DownloadManager.Error.FileError(ThrowableError(e)) | ||
| listener.onDownloadFailed(id, error) | ||
| } | ||
| } | ||
| } | ||
| is Try.Failure -> { | ||
| val error = mapError(response.value) | ||
| listener.onDownloadFailed(id, error) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private fun mapError(httpException: HttpException): DownloadManager.Error { | ||
| val httpError = ThrowableError(httpException) | ||
| return when (httpException.kind) { | ||
| HttpException.Kind.MalformedRequest -> | ||
| DownloadManager.Error.Unknown(httpError) | ||
| HttpException.Kind.MalformedResponse -> | ||
| DownloadManager.Error.HttpData(httpError) | ||
| HttpException.Kind.Timeout -> | ||
| DownloadManager.Error.Unreachable(httpError) | ||
| HttpException.Kind.BadRequest -> | ||
| DownloadManager.Error.Unknown(httpError) | ||
| HttpException.Kind.Unauthorized -> | ||
| DownloadManager.Error.Forbidden(httpError) | ||
| HttpException.Kind.Forbidden -> | ||
| DownloadManager.Error.Forbidden(httpError) | ||
| HttpException.Kind.NotFound -> | ||
| DownloadManager.Error.NotFound(httpError) | ||
| HttpException.Kind.ClientError -> | ||
| DownloadManager.Error.HttpData(httpError) | ||
| HttpException.Kind.ServerError -> | ||
| DownloadManager.Error.Server(httpError) | ||
| HttpException.Kind.Offline -> | ||
| DownloadManager.Error.Unreachable(httpError) | ||
| HttpException.Kind.Cancelled -> | ||
| DownloadManager.Error.Unknown(httpError) | ||
| HttpException.Kind.Other -> | ||
| DownloadManager.Error.Unknown(httpError) | ||
| } | ||
| } | ||
|
|
||
| override suspend fun cancel(requestId: DownloadManager.RequestId) { | ||
| jobs.remove(requestId)?.cancel() | ||
| } | ||
|
|
||
| override suspend fun close() { | ||
| } | ||
| } |
23 changes: 23 additions & 0 deletions
23
...java/org/readium/r2/shared/util/downloads/foreground/ForegroundDownloadManagerProvider.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| /* | ||
| * Copyright 2023 Readium Foundation. All rights reserved. | ||
| * Use of this source code is governed by the BSD-style license | ||
| * available in the top-level LICENSE file of the project. | ||
| */ | ||
|
|
||
| package org.readium.r2.shared.util.downloads.foreground | ||
|
|
||
| import org.readium.r2.shared.util.downloads.DownloadManager | ||
| import org.readium.r2.shared.util.downloads.DownloadManagerProvider | ||
| import org.readium.r2.shared.util.http.HttpClient | ||
|
|
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| public class ForegroundDownloadManagerProvider( | ||
| private val httpClient: HttpClient | ||
| ) : DownloadManagerProvider { | ||
|
|
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| override fun createDownloadManager( | ||
| listener: DownloadManager.Listener, | ||
| name: String | ||
| ): DownloadManager { | ||
| return ForegroundDownloadManager(httpClient, listener) | ||
| } | ||
| } |
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