536 lines
20 KiB
C#
536 lines
20 KiB
C#
using System;
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using System.IO;
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using System.Collections.Generic;
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using System.Linq;
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using UnityEngine;
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namespace YooAsset
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{
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/// <summary>
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/// 缓存文件系统
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/// 说明：正在进行的下载器会在ResourcePackage销毁的时候执行Abort操作！
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/// </summary>
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internal class DefaultCacheFileSystem : IFileSystem, ICacheSystem
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{
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protected readonly Dictionary<string, CacheWrapper> _wrappers = new Dictionary<string, CacheWrapper>(10000);
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protected readonly Dictionary<string, string> _dataFilePaths = new Dictionary<string, string>(10000);
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protected readonly Dictionary<string, string> _infoFilePaths = new Dictionary<string, string>(10000);
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protected readonly Dictionary<string, string> _tempFilePaths = new Dictionary<string, string>(10000);
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protected DefaultCacheDownloadCenter _downloadCenter;
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protected string _packageRoot;
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protected string _cacheFileRoot;
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protected string _tempFileRoot;
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protected string _manifestFileRoot;
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/// <summary>
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/// 包裹名称
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/// </summary>
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public string PackageName { private set; get; }
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/// <summary>
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/// 文件根目录
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/// </summary>
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public string FileRoot
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{
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get
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{
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return _packageRoot;
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}
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}
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/// <summary>
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/// 文件数量
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/// </summary>
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public int FileCount
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{
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get
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{
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return _wrappers.Count;
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}
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}
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#region 自定义参数
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/// <summary>
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/// 自定义参数：远程服务接口
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/// </summary>
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public IRemoteServices RemoteServices { private set; get; } = null;
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/// <summary>
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/// 自定义参数：初始化的时候缓存文件校验级别
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/// </summary>
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public EFileVerifyLevel FileVerifyLevel { private set; get; } = EFileVerifyLevel.Middle;
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/// <summary>
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/// 自定义参数：数据文件追加文件格式
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/// </summary>
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public bool AppendFileExtension { private set; get; } = false;
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/// <summary>
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/// 自定义参数：最大并发连接数
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/// </summary>
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public int DownloadMaxConcurrency { private set; get; } = int.MaxValue;
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/// <summary>
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/// 自定义参数：每帧发起的最大请求数
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/// </summary>
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public int DownloadMaxRequestPerFrame { private set; get; } = int.MaxValue;
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/// <summary>
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/// 自定义参数：启用断点续传的最小尺寸
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/// </summary>
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public long ResumeDownloadMinimumSize { private set; get; } = long.MaxValue;
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/// <summary>
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/// 自定义参数：断点续传下载器关注的错误码
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/// </summary>
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public List<long> ResumeDownloadResponseCodes { private set; get; } = null;
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/// <summary>
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/// 自定义参数：解密方法类
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/// </summary>
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public IDecryptionServices DecryptionServices { private set; get; }
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#endregion
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public DefaultCacheFileSystem()
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{
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}
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public virtual FSInitializeFileSystemOperation InitializeFileSystemAsync()
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{
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var operation = new DCFSInitializeOperation(this);
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OperationSystem.StartOperation(PackageName, operation);
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return operation;
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}
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public virtual FSLoadPackageManifestOperation LoadPackageManifestAsync(string packageVersion, int timeout)
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{
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var operation = new DCFSLoadPackageManifestOperation(this, packageVersion, timeout);
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OperationSystem.StartOperation(PackageName, operation);
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return operation;
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}
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public virtual FSRequestPackageVersionOperation RequestPackageVersionAsync(bool appendTimeTicks, int timeout)
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{
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var operation = new DCFSRequestPackageVersionOperation(this, appendTimeTicks, timeout);
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OperationSystem.StartOperation(PackageName, operation);
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return operation;
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}
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public virtual FSClearCacheBundleFilesOperation ClearCacheBundleFilesAsync(PackageManifest manifest, string clearMode, object clearParam)
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{
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if (clearMode == EFileClearMode.ClearAllBundleFiles.ToString())
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{
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var operation = new ClearAllCacheFilesOperation(this);
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OperationSystem.StartOperation(PackageName, operation);
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return operation;
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}
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else if (clearMode == EFileClearMode.ClearUnusedBundleFiles.ToString())
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{
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var operation = new ClearUnusedCacheFilesOperation(this, manifest);
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OperationSystem.StartOperation(PackageName, operation);
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return operation;
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}
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else if (clearMode == EFileClearMode.ClearBundleFilesByTags.ToString())
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{
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var operation = new ClearCacheFilesByTagsOperaiton(this, manifest, clearParam);
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OperationSystem.StartOperation(PackageName, operation);
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return operation;
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}
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else
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{
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string error = $"Invalid clear mode : {clearMode}";
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var operation = new FSClearCacheBundleFilesCompleteOperation(error);
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OperationSystem.StartOperation(PackageName, operation);
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return operation;
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}
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}
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public virtual FSDownloadFileOperation DownloadFileAsync(PackageBundle bundle, DownloadParam param)
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{
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return _downloadCenter.DownloadFileAsync(bundle, param);
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}
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public virtual FSLoadBundleOperation LoadBundleFile(PackageBundle bundle)
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{
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if (bundle.BundleType == (int)EBuildBundleType.AssetBundle)
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{
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var operation = new DCFSLoadAssetBundleOperation(this, bundle);
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OperationSystem.StartOperation(PackageName, operation);
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return operation;
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}
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else if (bundle.BundleType == (int)EBuildBundleType.RawBundle)
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{
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var operation = new DCFSLoadRawBundleOperation(this, bundle);
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OperationSystem.StartOperation(PackageName, operation);
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return operation;
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}
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else
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{
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string error = $"{nameof(DefaultCacheFileSystem)} not support load bundle type : {bundle.BundleType}";
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var operation = new FSLoadBundleCompleteOperation(error);
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OperationSystem.StartOperation(PackageName, operation);
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return operation;
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}
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}
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public virtual void SetParameter(string name, object value)
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{
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if (name == FileSystemParametersDefine.REMOTE_SERVICES)
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{
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RemoteServices = (IRemoteServices)value;
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}
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else if (name == FileSystemParametersDefine.FILE_VERIFY_LEVEL)
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{
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FileVerifyLevel = (EFileVerifyLevel)value;
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}
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else if (name == FileSystemParametersDefine.APPEND_FILE_EXTENSION)
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{
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AppendFileExtension = (bool)value;
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}
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else if (name == FileSystemParametersDefine.DOWNLOAD_MAX_CONCURRENCY)
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{
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DownloadMaxConcurrency = (int)value;
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}
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else if (name == FileSystemParametersDefine.DOWNLOAD_MAX_REQUEST_PER_FRAME)
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{
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DownloadMaxRequestPerFrame = (int)value;
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}
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else if (name == FileSystemParametersDefine.RESUME_DOWNLOAD_MINMUM_SIZE)
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{
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ResumeDownloadMinimumSize = (long)value;
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}
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else if (name == FileSystemParametersDefine.RESUME_DOWNLOAD_RESPONSE_CODES)
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{
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ResumeDownloadResponseCodes = (List<long>)value;
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}
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else if (name == FileSystemParametersDefine.DECRYPTION_SERVICES)
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{
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DecryptionServices = (IDecryptionServices)value;
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}
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else
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{
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YooLogger.Warning($"Invalid parameter : {name}");
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}
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}
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public virtual void OnCreate(string packageName, string rootDirectory)
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{
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PackageName = packageName;
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if (string.IsNullOrEmpty(rootDirectory))
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rootDirectory = GetDefaultCacheRoot();
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_packageRoot = PathUtility.Combine(rootDirectory, packageName);
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_cacheFileRoot = PathUtility.Combine(_packageRoot, DefaultCacheFileSystemDefine.SaveFilesFolderName);
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_tempFileRoot = PathUtility.Combine(_packageRoot, DefaultCacheFileSystemDefine.TempFilesFolderName);
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_manifestFileRoot = PathUtility.Combine(_packageRoot, DefaultCacheFileSystemDefine.ManifestFilesFolderName);
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_downloadCenter = new DefaultCacheDownloadCenter(this);
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}
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public virtual void OnUpdate()
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{
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_downloadCenter.Update();
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}
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public virtual bool Belong(PackageBundle bundle)
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{
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// 注意：缓存文件系统保底加载！
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return true;
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}
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public virtual bool Exists(PackageBundle bundle)
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{
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return _wrappers.ContainsKey(bundle.BundleGUID);
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}
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public virtual bool NeedDownload(PackageBundle bundle)
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{
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if (Belong(bundle) == false)
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return false;
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return Exists(bundle) == false;
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}
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public virtual bool NeedUnpack(PackageBundle bundle)
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{
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return false;
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}
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public virtual bool NeedImport(PackageBundle bundle)
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{
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if (Belong(bundle) == false)
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return false;
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return Exists(bundle) == false;
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}
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public virtual string GetBundleFilePath(PackageBundle bundle)
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{
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return GetCacheFileLoadPath(bundle);
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}
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public virtual byte[] ReadBundleFileData(PackageBundle bundle)
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{
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if (Exists(bundle) == false)
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return null;
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if (bundle.Encrypted)
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{
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if (DecryptionServices == null)
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{
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YooLogger.Error($"The {nameof(IDecryptionServices)} is null !");
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return null;
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}
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string filePath = GetCacheFileLoadPath(bundle);
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var fileInfo = new DecryptFileInfo()
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{
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BundleName = bundle.BundleName,
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FileLoadCRC = bundle.UnityCRC,
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FileLoadPath = filePath,
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};
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return DecryptionServices.ReadFileData(fileInfo);
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}
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else
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{
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string filePath = GetCacheFileLoadPath(bundle);
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return FileUtility.ReadAllBytes(filePath);
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}
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}
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public virtual string ReadBundleFileText(PackageBundle bundle)
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{
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if (Exists(bundle) == false)
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return null;
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if (bundle.Encrypted)
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{
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if (DecryptionServices == null)
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{
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YooLogger.Error($"The {nameof(IDecryptionServices)} is null !");
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return null;
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}
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string filePath = GetCacheFileLoadPath(bundle);
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var fileInfo = new DecryptFileInfo()
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{
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BundleName = bundle.BundleName,
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FileLoadCRC = bundle.UnityCRC,
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FileLoadPath = filePath,
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};
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return DecryptionServices.ReadFileText(fileInfo);
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}
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else
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{
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string filePath = GetCacheFileLoadPath(bundle);
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return FileUtility.ReadAllText(filePath);
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}
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}
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#region 缓存系统
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public string GetCacheFileRoot()
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{
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return _cacheFileRoot;
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}
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public string GetTempFilePath(PackageBundle bundle)
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{
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if (_tempFilePaths.TryGetValue(bundle.BundleGUID, out string filePath) == false)
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{
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filePath = PathUtility.Combine(_tempFileRoot, bundle.BundleGUID);
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_tempFilePaths.Add(bundle.BundleGUID, filePath);
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}
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return filePath;
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}
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public string GetDataFilePath(PackageBundle bundle)
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{
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if (_dataFilePaths.TryGetValue(bundle.BundleGUID, out string filePath) == false)
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{
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string folderName = bundle.FileHash.Substring(0, 2);
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filePath = PathUtility.Combine(_cacheFileRoot, folderName, bundle.BundleGUID, DefaultCacheFileSystemDefine.SaveBundleDataFileName);
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if (AppendFileExtension)
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filePath += bundle.FileExtension;
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_dataFilePaths.Add(bundle.BundleGUID, filePath);
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}
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return filePath;
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}
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public string GetInfoFilePath(PackageBundle bundle)
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{
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if (_infoFilePaths.TryGetValue(bundle.BundleGUID, out string filePath) == false)
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{
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string folderName = bundle.FileHash.Substring(0, 2);
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filePath = PathUtility.Combine(_cacheFileRoot, folderName, bundle.BundleGUID, DefaultCacheFileSystemDefine.SaveBundleInfoFileName);
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_infoFilePaths.Add(bundle.BundleGUID, filePath);
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}
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return filePath;
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}
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public List<string> GetAllCachedBundleGUIDs()
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{
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return _wrappers.Keys.ToList();
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}
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public bool IsRecordFile(string bundleGUID)
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{
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return _wrappers.ContainsKey(bundleGUID);
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}
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public bool RecordFile(string bundleGUID, CacheWrapper wrapper)
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{
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if (_wrappers.ContainsKey(bundleGUID))
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{
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YooLogger.Error($"{nameof(DefaultCacheFileSystem)} has element : {bundleGUID}");
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return false;
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}
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_wrappers.Add(bundleGUID, wrapper);
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return true;
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}
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public EFileVerifyResult VerifyCacheFile(PackageBundle bundle)
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{
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if (_wrappers.TryGetValue(bundle.BundleGUID, out CacheWrapper wrapper) == false)
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return EFileVerifyResult.CacheNotFound;
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EFileVerifyResult result = FileVerifyHelper.FileVerify(wrapper.DataFilePath, wrapper.DataFileSize, wrapper.DataFileCRC, EFileVerifyLevel.High);
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return result;
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}
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public bool WriteCacheFile(PackageBundle bundle, string copyPath)
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{
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if (_wrappers.ContainsKey(bundle.BundleGUID))
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{
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throw new Exception("Should never get here !");
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}
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string infoFilePath = GetInfoFilePath(bundle);
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string dataFilePath = GetDataFilePath(bundle);
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try
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{
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if (File.Exists(infoFilePath))
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File.Delete(infoFilePath);
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if (File.Exists(dataFilePath))
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File.Delete(dataFilePath);
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FileUtility.CreateFileDirectory(dataFilePath);
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// 拷贝数据文件
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FileInfo fileInfo = new FileInfo(copyPath);
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fileInfo.CopyTo(dataFilePath);
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// 写入文件信息
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WriteInfoFile(infoFilePath, bundle.FileCRC, bundle.FileSize);
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}
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catch (Exception e)
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{
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YooLogger.Error($"Failed to write cache file ! {e.Message}");
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return false;
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}
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var wrapper = new CacheWrapper(infoFilePath, dataFilePath, bundle.FileCRC, bundle.FileSize);
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return RecordFile(bundle.BundleGUID, wrapper);
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}
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public bool DeleteCacheFile(string bundleGUID)
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{
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if (_wrappers.TryGetValue(bundleGUID, out CacheWrapper wrapper))
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{
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try
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{
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string dataFilePath = wrapper.DataFilePath;
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FileInfo fileInfo = new FileInfo(dataFilePath);
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if (fileInfo.Exists)
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fileInfo.Directory.Delete(true);
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_wrappers.Remove(bundleGUID);
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return true;
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}
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catch (Exception e)
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{
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YooLogger.Error($"Failed to delete cache file ! {e.Message}");
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return false;
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}
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}
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else
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{
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return false;
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}
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}
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private readonly BufferWriter _sharedBuffer = new BufferWriter(1024);
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public void WriteInfoFile(string filePath, string dataFileCRC, long dataFileSize)
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{
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using (FileStream fs = new FileStream(filePath, FileMode.Create, FileAccess.Write, FileShare.Read))
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{
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_sharedBuffer.Clear();
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_sharedBuffer.WriteUTF8(dataFileCRC);
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_sharedBuffer.WriteInt64(dataFileSize);
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_sharedBuffer.WriteToStream(fs);
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fs.Flush();
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}
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}
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public void ReadInfoFile(string filePath, out string dataFileCRC, out long dataFileSize)
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{
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byte[] binaryData = FileUtility.ReadAllBytes(filePath);
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BufferReader buffer = new BufferReader(binaryData);
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dataFileCRC = buffer.ReadUTF8();
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dataFileSize = buffer.ReadInt64();
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}
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#endregion
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#region 内部方法
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public string GetDefaultCacheRoot()
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{
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#if UNITY_EDITOR
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return YooAssetSettingsData.GetYooEditorCacheRoot();
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#elif UNITY_STANDALONE
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return YooAssetSettingsData.GetYooStandaloneCacheRoot();
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#else
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return YooAssetSettingsData.GetYooMobileCacheRoot();
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#endif
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}
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public string GetCacheFileLoadPath(PackageBundle bundle)
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{
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return GetDataFilePath(bundle);
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}
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public string GetCachePackageHashFilePath(string packageVersion)
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{
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string fileName = YooAssetSettingsData.GetPackageHashFileName(PackageName, packageVersion);
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return PathUtility.Combine(_manifestFileRoot, fileName);
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}
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public string GetCachePackageManifestFilePath(string packageVersion)
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{
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string fileName = YooAssetSettingsData.GetManifestBinaryFileName(PackageName, packageVersion);
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return PathUtility.Combine(_manifestFileRoot, fileName);
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}
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public string GetSandboxAppFootPrintFilePath()
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{
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return PathUtility.Combine(_manifestFileRoot, DefaultCacheFileSystemDefine.AppFootPrintFileName);
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}
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/// <summary>
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/// 删除所有清单文件
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/// </summary>
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public void DeleteAllManifestFiles()
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{
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if (Directory.Exists(_manifestFileRoot))
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{
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Directory.Delete(_manifestFileRoot, true);
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}
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}
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/// <summary>
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/// 加载加密资源文件
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/// </summary>
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public DecryptResult LoadEncryptedAssetBundle(PackageBundle bundle)
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{
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string filePath = GetCacheFileLoadPath(bundle);
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var fileInfo = new DecryptFileInfo()
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{
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BundleName = bundle.BundleName,
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FileLoadCRC = bundle.UnityCRC,
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FileLoadPath = filePath,
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};
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return DecryptionServices.LoadAssetBundle(fileInfo);
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}
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/// <summary>
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/// 加载加密资源文件
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/// </summary>
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public DecryptResult LoadEncryptedAssetBundleAsync(PackageBundle bundle)
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{
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string filePath = GetCacheFileLoadPath(bundle);
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var fileInfo = new DecryptFileInfo()
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{
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BundleName = bundle.BundleName,
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FileLoadCRC = bundle.UnityCRC,
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FileLoadPath = filePath,
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};
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return DecryptionServices.LoadAssetBundleAsync(fileInfo);
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}
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#endregion
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}
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} |