public void Create(StorageFileInfo file, Stream content)
{
if (file == null)
{
throw new ArgumentNullException("file");
}
var storage = this.Storage;
if (storage == null)
{
throw new InvalidOperationException("The Storage is null.");
}
//如果文件路径为空则为它设置一个有效的文件路径
if (string.IsNullOrWhiteSpace(file.Path))
{
file.Path = this.GetFilePath(file);
}
storage.SetValue(GetFileKey(file.FileId), file.ToDictionary());
var collection = storage.GetValue(GetFileCollectionKey(file.BucketId)) as ICollection <string>;
if (collection != null)
{
collection.Add(file.FileId.ToString("n"));
}
else
{
storage.SetValue(GetFileCollectionKey(file.BucketId), new string[] { file.FileId.ToString("n") });
}
if (content != null)
{
var path = Zongsoft.IO.Path.Parse(file.Path);
//确认文件的所在目录是存在的，如果不存在则创建相应的目录
FileSystem.Directory.Create(path.Schema + ":" + path.DirectoryName);
//创建或打开指定路径的文件流
using (var stream = FileSystem.File.Open(file.Path, FileMode.Create, FileAccess.Write))
{
//将文件内容写入到创建或打开的文件流中
content.CopyTo(stream);
}
}
}
private string GetFilePath(StorageFileInfo fileInfo)
{
var timestamp = fileInfo.CreatedTime;
var parameters = Zongsoft.Collections.DictionaryExtension.ToDictionary <string, string>(Environment.GetEnvironmentVariables());
parameters.Add("date", timestamp.ToString("yyyyMMdd"));
parameters.Add("time", timestamp.ToString("HHmmss"));
parameters.Add("year", timestamp.Year.ToString("0000"));
parameters.Add("month", timestamp.Month.ToString("00"));
parameters.Add("day", timestamp.Day.ToString("00"));
var resolvedPath = this.ResolveTextWithParameters(this.GetBucketPath(fileInfo.BucketId), parameters);
//返回当前文件的完整虚拟路径
return(Zongsoft.IO.Path.Combine(resolvedPath, string.Format("[{0}]{1:n}{2}", fileInfo.BucketId, fileInfo.FileId, System.IO.Path.GetExtension(fileInfo.Name).ToLowerInvariant())));
}
public static StorageFileInfo FromDictionary(IDictionary dictionary)
{
if(dictionary == null || dictionary.Count < 1)
return null;
object bucketId, fileId, name, type, size, path, totalVisits, createdTime, modifiedTime, visitedTime;
if(!dictionary.TryGetValue("BucketId", out bucketId))
return null;
if(!dictionary.TryGetValue("FileId", out fileId))
return null;
dictionary.TryGetValue("Name", out name);
dictionary.TryGetValue("Type", out type);
dictionary.TryGetValue("Size", out size);
dictionary.TryGetValue("Path", out path);
dictionary.TryGetValue("TotalVisits", out totalVisits);
dictionary.TryGetValue("CreatedTime", out createdTime);
dictionary.TryGetValue("ModifiedTime", out modifiedTime);
dictionary.TryGetValue("VisitedTime", out visitedTime);
var result = new StorageFileInfo(Zongsoft.Common.Convert.ConvertValue<int>(bucketId), Zongsoft.Common.Convert.ConvertValue<Guid>(fileId))
{
Name = Zongsoft.Common.Convert.ConvertValue<string>(name),
Type = Zongsoft.Common.Convert.ConvertValue<string>(type),
Size = Zongsoft.Common.Convert.ConvertValue<long>(size),
Path = Zongsoft.Common.Convert.ConvertValue<string>(path),
TotalVisits = Zongsoft.Common.Convert.ConvertValue<int>(totalVisits),
CreatedTime = Zongsoft.Common.Convert.ConvertValue<DateTime>(createdTime),
ModifiedTime = Zongsoft.Common.Convert.ConvertValue<DateTime?>(modifiedTime),
VisitedTime = Zongsoft.Common.Convert.ConvertValue<DateTime?>(visitedTime),
};
foreach(var key in dictionary.Keys)
{
if(key == null)
continue;
if(key.ToString().StartsWith(EXTENDEDPROPERTIESPREFIX))
result.ExtendedProperties[key.ToString().Substring(EXTENDEDPROPERTIESPREFIX.Length)] = dictionary[key];
}
return result;
}
public StorageFileInfo GetInfo(Guid fileId)
{
var storage = this.Storage;
if (storage == null)
{
throw new InvalidOperationException("The Storage is null.");
}
var dictionary = storage.GetValue(GetFileKey(fileId)) as IDictionary;
if (dictionary != null)
{
return(StorageFileInfo.FromDictionary(dictionary));
}
return(null);
}
public Guid?Copy(Guid fileId, int bucketId)
{
var storage = this.Storage;
if (storage == null)
{
throw new InvalidOperationException("The Storage is null.");
}
var info = this.GetInfo(fileId);
if (info == null)
{
return(null);
}
if (info.BucketId == bucketId)
{
return(fileId);
}
var newInfo = new StorageFileInfo(bucketId, Guid.NewGuid())
{
Name = info.Name,
Type = info.Type,
Size = info.Size,
Path = info.Path,
};
if (info.HasExtendedProperties)
{
foreach (var entry in info.ExtendedProperties)
{
newInfo.ExtendedProperties.Add(entry.Key, entry.Value);
}
}
this.Create(newInfo, null);
return(newInfo.FileId);
}
public Stream Open(Guid fileId, out StorageFileInfo info)
{
var storage = this.Storage;
if (storage == null)
{
throw new InvalidOperationException("The Storage is null.");
}
info = null;
var dictionary = storage.GetValue(GetFileKey(fileId)) as IDictionary;
if (dictionary == null || dictionary.Count < 1)
{
return(null);
}
info = StorageFileInfo.FromDictionary(dictionary);
if (dictionary is Zongsoft.Common.IAccumulator)
{
((Zongsoft.Common.IAccumulator)dictionary).Increment("TotalVisits");
}
else
{
long totalVisits = 0;
dictionary.TryGetValue <long>("TotalVisits", out totalVisits);
dictionary["TotalVisits"] = totalVisits + 1;
}
dictionary["VisitedTime"] = DateTime.Now;
if (string.IsNullOrWhiteSpace(info.Path))
{
return(null);
}
return(FileSystem.File.Open(info.Path, FileMode.Open, FileAccess.ReadWrite, FileShare.Read));
}
public void Create(StorageFileInfo file, Stream content)
{
if(file == null)
throw new ArgumentNullException("file");
var storage = this.Storage;
if(storage == null)
throw new InvalidOperationException("The Storage is null.");
//如果文件路径为空则为它设置一个有效的文件路径
if(string.IsNullOrWhiteSpace(file.Path))
file.Path = this.GetFilePath(file);
storage.SetValue(GetFileKey(file.FileId), file.ToDictionary());
var collection = storage.GetValue(GetFileCollectionKey(file.BucketId)) as ICollection<string>;
if(collection != null)
collection.Add(file.FileId.ToString("n"));
else
storage.SetValue(GetFileCollectionKey(file.BucketId), new string[] { file.FileId.ToString("n") });
if(content != null)
{
var path = Zongsoft.IO.Path.Parse(file.Path);
//确认文件的所在目录是存在的，如果不存在则创建相应的目录
FileSystem.Directory.Create(path.Schema + ":" + path.DirectoryName);
//创建或打开指定路径的文件流
using(var stream = FileSystem.File.Open(file.Path, FileMode.Create, FileAccess.Write))
{
//将文件内容写入到创建或打开的文件流中
content.CopyTo(stream);
}
}
}
private string GetFilePath(StorageFileInfo fileInfo)
{
var timestamp = fileInfo.CreatedTime;
var parameters = Zongsoft.Collections.DictionaryExtension.ToDictionary<string, string>(Environment.GetEnvironmentVariables());
parameters.Add("date", timestamp.ToString("yyyyMMdd"));
parameters.Add("time", timestamp.ToString("HHmmss"));
parameters.Add("year", timestamp.Year.ToString("0000"));
parameters.Add("month", timestamp.Month.ToString("00"));
parameters.Add("day", timestamp.Day.ToString("00"));
var resolvedPath = this.ResolveTextWithParameters(this.GetBucketPath(fileInfo.BucketId), parameters);
//返回当前文件的完整虚拟路径
return Zongsoft.IO.Path.Combine(resolvedPath, string.Format("[{0}]{1:n}{2}", fileInfo.BucketId, fileInfo.FileId, System.IO.Path.GetExtension(fileInfo.Name).ToLowerInvariant()));
}
public Guid? Copy(Guid fileId, int bucketId)
{
var storage = this.Storage;
if(storage == null)
throw new InvalidOperationException("The Storage is null.");
var info = this.GetInfo(fileId);
if(info == null)
return null;
if(info.BucketId == bucketId)
return fileId;
var newInfo = new StorageFileInfo(bucketId, Guid.NewGuid())
{
Name = info.Name,
Type = info.Type,
Size = info.Size,
Path = info.Path,
};
if(info.HasExtendedProperties)
{
foreach(var entry in info.ExtendedProperties)
{
newInfo.ExtendedProperties.Add(entry.Key, entry.Value);
}
}
this.Create(newInfo, null);
return newInfo.FileId;
}
public Stream Open(Guid fileId, out StorageFileInfo info)
{
var storage = this.Storage;
if(storage == null)
throw new InvalidOperationException("The Storage is null.");
info = null;
var dictionary = storage.GetValue(GetFileKey(fileId)) as IDictionary;
if(dictionary == null || dictionary.Count < 1)
return null;
info = StorageFileInfo.FromDictionary(dictionary);
if(dictionary is Zongsoft.Common.IAccumulator)
((Zongsoft.Common.IAccumulator)dictionary).Increment("TotalVisits");
else
{
long totalVisits = 0;
dictionary.TryGetValue<long>("TotalVisits", out totalVisits);
dictionary["TotalVisits"] = totalVisits + 1;
}
dictionary["VisitedTime"] = DateTime.Now;
if(string.IsNullOrWhiteSpace(info.Path))
return null;
return FileSystem.File.Open(info.Path, FileMode.Open, FileAccess.ReadWrite, FileShare.Read);
}
private string GetFilePath(StorageFileInfo fileInfo)
{
//返回当前文件的完整虚拟路径
return Zongsoft.IO.Path.Combine(_bucketPath, string.Format("[{0}]{1:n}{2}", fileInfo.BucketId, fileInfo.FileId, System.IO.Path.GetExtension(fileInfo.Name).ToLowerInvariant()));
}
public override Stream GetStream(HttpContent parent, HttpContentHeaders headers)
{
if(parent == null)
throw new ArgumentNullException("parent");
if(headers == null)
throw new ArgumentNullException("headers");
if(string.IsNullOrEmpty(headers.ContentDisposition.FileName))
{
_isFormData.Add(true);
return new MemoryStream();
}
var contentType = headers.ContentType == null ? string.Empty : headers.ContentType.MediaType;
if(string.IsNullOrWhiteSpace(contentType))
contentType = System.Web.MimeMapping.GetMimeMapping(headers.ContentDisposition.FileName);
_isFormData.Add(false);
//创建一个文件信息实体对象
var fileInfo = new StorageFileInfo(_bucketId)
{
Name = Zongsoft.Common.StringExtension.RemoveCharacters(headers.ContentDisposition.FileName, System.IO.Path.GetInvalidFileNameChars()).Trim('"', '\''),
Type = contentType,
Size = headers.ContentDisposition.Size.HasValue ? headers.ContentDisposition.Size.Value : -1,
};
fileInfo.Path = this.GetFilePath(fileInfo);
try
{
//将文件信息对象加入到集合中
_fileData.Add(fileInfo);
if(!FileSystem.Directory.Exists(_bucketPath))
FileSystem.Directory.Create(_bucketPath);
return FileSystem.File.Open(fileInfo.Path, FileMode.CreateNew, FileAccess.Write);
}
catch
{
_fileData.Remove(fileInfo);
throw;
}
}