void DoDownload(StorageNode node, string fileId, string destFileName)
{
//get metadata
IDictionary <string, string> metaData = FastDFSClient.GetMetaData(node, fileId);
//download file
string destDir = Environment.CurrentDirectory;
string destName = metaData["filename"] + Path.GetExtension(fileId);
if (!string.IsNullOrEmpty(destFileName))
{
string dir = Path.GetDirectoryName(destFileName);
if (!string.IsNullOrEmpty(dir))
{
destDir = dir;
}
destName = Path.GetFileName(destFileName);
}
string fullName = FastDFSClient.DownloadFileEx(node, fileId, destDir, destName);
Console.WriteLine("{0}", fullName);
}