/// <summary>
/// Gets the loaded binary depending on storage settings
/// </summary>
/// <param name="FileMetaData">FileMetaData</param>
/// <param name="fromDb">Load from database; otherwise, from file system</param>
/// <returns>File binary</returns>
public virtual byte[] LoadBinary(FileMetaData fileData, bool fromDb)
{
if (fileData == null)
throw new ArgumentNullException("fileData");
byte[] result = null;
if (fromDb)
result = fileData.BinaryData;
else
result = LoadFromFile(fileData.RowId, fileData.MimeType, (FileType)fileData.FileType);
return result;
}
/// <summary>
/// Delete a file on the physcial system
/// </summary>
/// <param name="fileData">FileMetaData</param>
protected virtual void DeleteOnFileSystem(FileMetaData fileData)
{
if (fileData == null)
throw new ArgumentNullException("fileData");
string lastPart = GetFileExtensionFromMimeType(fileData.MimeType);
string localFilename = string.Format("{0}.{1}", fileData.RowId.ToString(), lastPart);
string localFilepath = Path.Combine(this.LocalPath((FileType)fileData.FileType), localFilename);
if (File.Exists(localFilepath))
{
File.Delete(localFilepath);
}
}
/// <summary>
/// Gets the loaded binary depending on storage settings
/// </summary>
/// <param name="FileMetaData">FileMetaData</param>
/// <returns>File binary</returns>
public virtual byte[] LoadBinary(FileMetaData fileData)
{
return LoadBinary(fileData, this.StoreInDb);
}
/// <summary>
/// Inserts a file
/// </summary>
/// <param name="dataBinary">The file binary</param>
/// <param name="mimeType">The file MIME type</param>
/// <param name="seoFilename">The SEO filename</param>
/// <param name="isNew">A value indicating whether the file is new</param>
/// <param name="validateBinary">A value indicating whether to validated provided binary</param>
/// <returns>Picture</returns>
public virtual FileMetaData InsertFile(byte[] dataBinary, string mimeType, string seoFilename, bool isNew, FileType fileType)
{
mimeType = CommonHelper.EnsureNotNull(mimeType);
mimeType = CommonHelper.EnsureMaximumLength(mimeType, 20);
seoFilename = CommonHelper.EnsureMaximumLength(seoFilename, 100);
var fileData = new FileMetaData()
{
BinaryData = this.StoreInDb ? dataBinary : new byte[0],
MimeType = mimeType,
SeoFilename = seoFilename,
FileType = (int)fileType,
IsNew = isNew,
};
fileRepository.Insert(fileData);
if (!this.StoreInDb)
SaveInFile(fileData.RowId, dataBinary, mimeType, fileType);
//event notification
eventPublisher.EntityInserted(fileData);
return fileData;
}
/// <summary>
/// Get a file local path
/// </summary>
/// <param name="FileMetaData">FileMetaData instance</param>
/// <param name="targetSize">The target picture size (longest side)</param>
/// <param name="showDefaultPicture">A value indicating whether the default picture is shown</param>
/// <returns></returns>
public virtual string GetLocalPath(FileMetaData fileData, bool showDefaultPicture = true)
{
string url = GetFileUrl(fileData, showDefaultPicture);
if (String.IsNullOrEmpty(url))
return String.Empty;
else
return Path.Combine(this.LocalPath((FileType) fileData.FileType ), Path.GetFileName(url));
}
/// <summary>
/// Get a file URL
/// </summary>
/// <param name="fileData">FileMetaData instance</param>
/// <param name="targetSize">The target picture size (longest side)</param>
/// <param name="showDefaultPicture">A value indicating whether the default picture is shown</param>
/// <returns>URL</returns>
public virtual string GetFileUrl(FileMetaData fileData, bool showDefaultPicture = true)
{
string url = string.Empty;
byte[] dataBinary = null;
if (fileData != null)
dataBinary = LoadBinary(fileData);
if (fileData == null || dataBinary == null || dataBinary.Length == 0)
{
if (showDefaultPicture)
{
url = GetDefaultUrl( (FileType)fileData.FileType );
}
return url;
}
string lastPart = GetFileExtensionFromMimeType(fileData.MimeType);
string localFilename;
if (fileData.IsNew)
{
//we do not validate binary here to ensure that no exception ("Parameter is not valid") will be thrown
fileData = UpdateFile(fileData.RowId,
dataBinary,
fileData.MimeType,
fileData.SeoFilename,
false);
}
lock (s_lock)
{
string seoFileName = fileData.SeoFilename;
localFilename = !String.IsNullOrEmpty(seoFileName) ?
string.Format("{0}_{1}.{2}", fileData.RowId.ToString(), seoFileName, lastPart) :
string.Format("{0}.{1}", fileData.RowId.ToString(), lastPart);
}
url = "{0}{1}{2}".FormatWith(
webHelper.AbsoluteWebRoot.ToString(), this.VirtualPath((FileType)fileData.FileType), localFilename);
return url;
}
/// <summary>
/// Deletes a file
/// </summary>
/// <param name="fileData">FileMetaData</param>
public virtual void DeleteFile(FileMetaData fileData)
{
if (fileData == null)
throw new ArgumentNullException("fileData");
//delete from file system
if (!this.StoreInDb)
DeleteOnFileSystem(fileData);
//delete from database
fileRepository.Delete(fileData);
//event notification
eventPublisher.EntityDeleted(fileData);
}
