122 lines
4.2 KiB
C#
122 lines
4.2 KiB
C#
using System.IO;
|
|
using UnityEngine;
|
|
using UnityEngine.Networking;
|
|
|
|
namespace YooAsset
|
|
{
|
|
internal sealed class UnityDownloadNormalFileOperation : UnityDownloadFileOperation
|
|
{
|
|
private VerifyTempFileOperation _verifyOperation;
|
|
private ESteps _steps = ESteps.None;
|
|
|
|
internal UnityDownloadNormalFileOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle, string url)
|
|
: base(fileSystem, bundle, url)
|
|
{
|
|
}
|
|
internal override void InternalStart()
|
|
{
|
|
_steps = ESteps.CreateRequest;
|
|
}
|
|
internal override void InternalUpdate()
|
|
{
|
|
if (_steps == ESteps.None || _steps == ESteps.Done)
|
|
return;
|
|
|
|
// 创建下载器
|
|
if (_steps == ESteps.CreateRequest)
|
|
{
|
|
FileUtility.CreateFileDirectory(_tempFilePath);
|
|
if (File.Exists(_tempFilePath))
|
|
File.Delete(_tempFilePath);
|
|
|
|
CreateWebRequest();
|
|
_steps = ESteps.Download;
|
|
}
|
|
|
|
// 检测下载结果
|
|
if (_steps == ESteps.Download)
|
|
{
|
|
DownloadProgress = _webRequest.downloadProgress;
|
|
DownloadedBytes = (long)_webRequest.downloadedBytes;
|
|
Progress = DownloadProgress;
|
|
if (_webRequest.isDone == false)
|
|
return;
|
|
|
|
// 检查网络错误
|
|
if (CheckRequestResult())
|
|
{
|
|
_steps = ESteps.VerifyFile;
|
|
}
|
|
else
|
|
{
|
|
_steps = ESteps.Done;
|
|
Status = EOperationStatus.Failed;
|
|
}
|
|
|
|
// 注意：最终释放请求器
|
|
DisposeRequest();
|
|
}
|
|
|
|
// 验证下载文件
|
|
if (_steps == ESteps.VerifyFile)
|
|
{
|
|
if (_verifyOperation == null)
|
|
{
|
|
var element = new TempFileElement(_tempFilePath, _bundle.FileCRC, _bundle.FileSize);
|
|
_verifyOperation = new VerifyTempFileOperation(element);
|
|
_verifyOperation.StartOperation();
|
|
AddChildOperation(_verifyOperation);
|
|
}
|
|
|
|
if (IsWaitForAsyncComplete)
|
|
_verifyOperation.WaitForAsyncComplete();
|
|
|
|
_verifyOperation.UpdateOperation();
|
|
if (_verifyOperation.IsDone == false)
|
|
return;
|
|
|
|
if (_verifyOperation.Status == EOperationStatus.Succeed)
|
|
{
|
|
if (_fileSystem.WriteCacheBundleFile(_bundle, _tempFilePath))
|
|
{
|
|
_steps = ESteps.Done;
|
|
Status = EOperationStatus.Succeed;
|
|
}
|
|
else
|
|
{
|
|
_steps = ESteps.Done;
|
|
Status = EOperationStatus.Failed;
|
|
Error = $"{_fileSystem.GetType().FullName} failed to write file ! {_tempFilePath}";
|
|
}
|
|
}
|
|
else
|
|
{
|
|
_steps = ESteps.Done;
|
|
Status = EOperationStatus.Failed;
|
|
Error = _verifyOperation.Error;
|
|
}
|
|
|
|
// 注意：验证完成后直接删除文件
|
|
if (File.Exists(_tempFilePath))
|
|
File.Delete(_tempFilePath);
|
|
}
|
|
}
|
|
internal override void InternalWaitForAsyncComplete()
|
|
{
|
|
if (_steps != ESteps.Done)
|
|
{
|
|
YooLogger.Error($"Try load bundle {_bundle.BundleName} from remote : {_requestURL} !");
|
|
}
|
|
}
|
|
|
|
private void CreateWebRequest()
|
|
{
|
|
DownloadHandlerFile handler = new DownloadHandlerFile(_tempFilePath);
|
|
handler.removeFileOnAbort = true;
|
|
_webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
|
|
_webRequest.downloadHandler = handler;
|
|
_webRequest.disposeDownloadHandlerOnDispose = true;
|
|
_webRequest.SendWebRequest();
|
|
}
|
|
}
|
|
} |