/// <summary>
/// Get the file type in words. For example, a .pdf file would be Acrobat Document
/// </summary>
/// <param name="extension">The file extension</param>
/// <returns>The type of the file in words</returns>
public static string GetFileTypeInWords(string extension)
{
if (log.IsDebugEnabled)
{
log.Debug("Requested file type in words for extension " + extension);
}
// We need to get this from the file types
Hashtable theTypesHash = FileTypesBLL.GetFileTypesExtensionHash();
if (!theTypesHash.Contains(extension.ToUpper()))
{
log.Error("Failed to find the extension " + extension + " in the file type list");
return(Resources.Files.UnknownFileType);
}
FileType theFileType = (FileType)theTypesHash[extension.ToUpper()];
if (log.IsDebugEnabled)
{
log.Debug("Found description \"" + theFileType.Description +
"\" for extension " + extension);
}
return(theFileType.Description);
}
/// <summary>
/// Get the name of the provider that is in charge of extracting the text for the file type
/// </summary>
/// <param name="extension">The file extension</param>
/// <returns>The name of the provider that should be used or null if one does not exist</returns>
public static string GetFileTextExtractionProvider(string extension)
{
if (log.IsDebugEnabled)
{
log.Debug("Requested text extraction provider for extension " + extension);
}
// We need to get this from the file types
Hashtable theTypesHash = FileTypesBLL.GetFileTypesExtensionHash();
if (!theTypesHash.Contains(extension.ToUpper()))
{
log.Error("Failed to find the extension " + extension + " in the file type list");
return(null);
}
FileType theFileType = (FileType)theTypesHash[extension.ToUpper()];
if (log.IsDebugEnabled)
{
log.Debug("Found text extraction provider \"" + theFileType.Provider +
"\" for extension " + extension);
}
return(theFileType.Provider);
}
/// <summary>
/// Determines if an image file should be allowed to be uploaded to the system
/// </summary>
/// <param name="fileName">The image file name to verify</param>
/// <returns>True if the file should be allowed, false otherwise</returns>
public static bool IsAnImageFile(string fileName)
{
if (string.IsNullOrEmpty(fileName))
{
log.Warn("Called IsAnImageFile with null or empty filename");
return(false);
}
if (log.IsDebugEnabled)
{
log.Debug("Trying to determine if file " + fileName + " is an Image valid file");
}
FileInfo theFileInfo = new FileInfo(fileName);
string extension = theFileInfo.Extension;
// We need to get this from the file types
Hashtable theTypesHash = FileTypesBLL.GetFileTypesExtensionHash();
if (!theTypesHash.Contains(extension.ToUpper()))
{
log.Error("Failed to find the extension " + extension + " in the file type list");
return(false);
}
FileType theFileType = (FileType)theTypesHash[extension.ToUpper()];
if (theFileType.Image)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// Get the location of the medium icon for this file type
/// </summary>
/// <param name="extension">The file extension</param>
/// <param name="iconsize">The size of the required icon</param>
/// <returns>The location of the icon that should be used</returns>
public static string GetFileIconURL(string extension, IconSize iconsize, IconType icontype)
{
if (log.IsDebugEnabled)
{
log.Debug("Requested " + iconsize.ToString() + "icon for extension " + extension);
}
// We need to get this from the file types
Hashtable theTypesHash = FileTypesBLL.GetFileTypesExtensionHash();
if (!theTypesHash.Contains(extension.ToUpper()))
{
log.Error("Failed to find the extension " + extension + " in the file type list");
return(Resources.Files.FileIconDirectory + "/" + Resources.Files.UnknownFileIcon);
}
FileType theFileType = (FileType)theTypesHash[extension.ToUpper()];
string iconPath = "";
if (icontype == IconType.StandardIcon)
{
if (iconsize == IconSize.SmallIcon)
{
iconPath = Resources.Files.FileIconDirectory + "/" + theFileType.SmallIcon;
}
else if (iconsize == IconSize.MediumIcon)
{
iconPath = Resources.Files.FileIconDirectory + "/" + theFileType.MediumIcon;
}
else if (iconsize == IconSize.LargeIcon)
{
iconPath = Resources.Files.FileIconDirectory + "/" + theFileType.LargeIcon;
}
else
{
throw new ArgumentException("invalid icon size " + iconsize.ToString());
}
}
else
{
if (iconsize == IconSize.SmallIcon)
{
iconPath = Resources.Files.FileIconDirectory + "/" + theFileType.SmallCustomIcon;
}
else if (iconsize == IconSize.MediumIcon)
{
iconPath = Resources.Files.FileIconDirectory + "/" + theFileType.MediumCustomIcon;
}
else if (iconsize == IconSize.LargeIcon)
{
iconPath = Resources.Files.FileIconDirectory + "/" + theFileType.LargeCustomIcon;
}
else
{
throw new ArgumentException("invalid icon size " + iconsize.ToString());
}
}
if (log.IsDebugEnabled)
{
log.Debug("Found icon \"" + iconPath + "\" for size " + iconsize.ToString() +
"for extension " + extension);
}
return(iconPath);
}
