public void Enqueue(FTPDownloadJobInfo item)
{
Queue.Enqueue(item);
if (Queue.Count == 1)
{
//restart the handler
HandleNext();
}
}
public bool Contains(FTPDownloadJobInfo item)
{
foreach (var queueItem in Queue)
{
if (queueItem.DestinationDirectory == item.DestinationDirectory &&
queueItem.ListItem == item.ListItem &&
queueItem.Remove == item.Remove &&
queueItem.TopMostDirectory == item.TopMostDirectory)
{
return true;
}
}
return false;
}
private void DeleteFile(FTPDownloadJobInfo jobToDelete)
{
if (jobToDelete.ListItem.Type == FTPListItemType.File)
{
MakeRequestStringResponse(WebRequestMethods.Ftp.DeleteFile, jobToDelete.ListItem.FullPath);
}
else if (jobToDelete.ListItem.Type == FTPListItemType.Directory)
{
MakeRequestStringResponse(WebRequestMethods.Ftp.RemoveDirectory, jobToDelete.ListItem.FullPath);
}
var deleteParent = true;
foreach (var downloadJob in _downloadQueue.Queue)
{
if (downloadJob.DestinationDirectory == jobToDelete.DestinationDirectory)
{
deleteParent = false;
break;
}
}
var parentDirectoryPath = GetParentDirectory(jobToDelete.ListItem.FullPath);
if (deleteParent && parentDirectoryPath != jobToDelete.TopMostDirectory)
{
DeleteFile(new FTPDownloadJobInfo
{
DestinationDirectory = Directory.GetParent(jobToDelete.DestinationDirectory).FullName,
ListItem = new FTPListItem
{
FullPath = parentDirectoryPath,
Type = FTPListItemType.Directory
},
TopMostDirectory = jobToDelete.TopMostDirectory
});
}
}
public void DownloadAllReadyFiles(string ftpDirectory, string destinationDirectory, bool removeAfterDownload)
{
var files = GetFileListRecursive(ftpDirectory);
foreach (var file in files)
{
//double check the file size to ensure the file is not being copied on the ftp server
var size = GetFileSize(file.FullPath);
if (size == file.Size)
{
//get the relative path the file will go into
var relativePath = file.FullPath.Substring(ftpDirectory.Length + 1);
//remove the filename so we just have its destination directory
relativePath = relativePath.Remove(relativePath.Length - file.Name.Length);
//construct the local path where the file should be downloaded to
var fileDestination = Path.Combine(destinationDirectory, relativePath);
var newDownloadJob = new FTPDownloadJobInfo
{
DestinationDirectory = fileDestination,
ListItem = file,
Remove = removeAfterDownload,
TopMostDirectory = String.Format("{0}", ftpDirectory)
};
if (!_downloadQueue.Contains(newDownloadJob))
{
_downloadQueue.Enqueue(newDownloadJob);
}
}
}
}
private void DownloadFile(FTPDownloadJobInfo job)
{
try
{
if (!Directory.Exists(job.DestinationDirectory))
{
Directory.CreateDirectory(job.DestinationDirectory);
}
var destinationFilePath = Path.Combine(job.DestinationDirectory, job.ListItem.Name);
if (!File.Exists(destinationFilePath))
{
var bytesRead = 0;
var buffer = new byte[2048];
var response = MakeRequest(WebRequestMethods.Ftp.DownloadFile, job.ListItem.FullPath);
var reader = response.GetResponseStream();
var fileStream = new FileStream(destinationFilePath, FileMode.Create);
while (true)
{
bytesRead = reader.Read(buffer, 0, buffer.Length);
if (bytesRead == 0)
break;
fileStream.Write(buffer, 0, bytesRead);
}
fileStream.Close();
response.Close();
//TODO verify the file
if (job.Remove)
{
DeleteFile(job);
}
}
}
catch (Exception e)
{
LogError.LogMessage(e);
}
}
