/// <summary>
/// Parse the given file path string and extract the directory path and file name.
/// </summary>
/// <param name="filePath">
/// The file path string to be parsed
/// </param>
protected void ParseFilePath(string filePath)
{
// Obtain the absolute file path. Throw an exception if the path is invalid.
string absoluteFilePath = FileOps.GetAbsoluteFilePath(filePath);
// Parse the file path and extract the directory path
DirectoryPath = FileOps.GetDirectoryPath(absoluteFilePath);
// Throw an exception if the directory path is null
if (DirectoryPath == NULL)
{
throw new FilePathException("Directory path can't be null")
{
FileName = FileName,
FilePath = NULL
};
}
// Parse the file path and extract the file name
FileName = FileOps.GetFileName(absoluteFilePath);
// Throw an exception if the file name is null
if (FileName == NULL)
{
throw new FilePathException("File name can't be null")
{
FilePath = DirectoryPath,
FileName = FileName
};
}
}
/// <summary>
/// Verify that the given directory path is valid. Create the directory if it doesn't already
/// exist. Return the absolute directory path.
/// </summary>
/// <param name="directoryPath">
/// The directory path to be validated
/// </param>
/// <returns>
/// Returns the absolute directory path
/// </returns>
private string ValidateTargetPath(string directoryPath)
{
// The target path can't be null or zero length
if (directoryPath == null || directoryPath.Length == 0)
{
string eFileName = NA;
if (State == FileState.OPEN)
{
eFileName = FileName;
}
string eFilePath = EMPTY;
if (directoryPath == null)
{
eFilePath = NULL;
}
throw new FilePathException("Target path is missing")
{
FileName = eFileName,
FilePath = eFilePath
};
}
// Verify that the target file path doesn't contain any invalid characters
if (!FileOps.ValidDirectoryPath(directoryPath))
{
throw new FilePathException("Target file path contains invalid characters")
{
FilePath = directoryPath,
FileName = NA
};
}
// Get the full target file path
string targetPath;
try
{
targetPath = FileOps.GetAbsoluteFilePath(directoryPath);
}
catch (Exception e)
{
string eFileName = NA;
if (State == FileState.OPEN)
{
eFileName = FileName;
}
throw new FilePathException("Invalid target file path", e)
{
FileName = eFileName,
FilePath = directoryPath
};
}
// Verify that the target directory exists. Create the directory if it doesn't exist.
if (!Directory.Exists(targetPath))
{
try
{
Directory.CreateDirectory(targetPath);
}
catch (Exception e)
{
string eTargetPath = targetPath;
if (targetPath == null)
{
eTargetPath = NULL;
}
throw new FileOperationException("Unable to create target directory", e)
{
TargetPath = eTargetPath,
SourcePath = NA
};
}
}
return(targetPath);
}