private SyncJob CreateJob(byte[] toArray)
{
try
{
Dictionary<string, byte[]> index = toArray.Deserialize<Dictionary<string, byte[]>>();
SyncJob result = new SyncJob();
result.filesToDelete = new List<string>();
result.filesToDownload = new List<string>();
foreach (var file in index.Keys)
{
if (!fileIndex.ContainsKey(file)) result.filesToDelete.Add(file);
}
foreach (var file in fileIndex)
{
if (!index.ContainsKey(file.Key) || !index[file.Key].SequenceEqual(file.Value))
{
var downloadUrl =
MmoAws.AmazonS3.GetPreSignedURL(new GetPreSignedUrlRequest()
{
BucketName = Settings.Default.BucketName,
Key = Settings.Default.FolderName + "/" + file.Key,
Expires = DateTime.Now.AddHours(3)
});
result.filesToDownload.Add(file.Key + "|" + downloadUrl);
}
}
return result;
}catch(Exception ex)
{
log.Error("Error creating sync job, "+ex.Message);
return new SyncJob();
}
}
/// <summary>
/// Filename and Md5 index of the node libraries.
/// </summary>
/// <param name="inputIndex"></param>
public SyncJob CreateSyncJob(Dictionary<string, byte[]> inputIndex)
{
//Search for files that do not exist
var job = new SyncJob {filesToDelete = new List<string>(), filesToDownload = new List<string>()};
foreach(var file in inputIndex.Keys)
{
if (!FileIndex.ContainsKey(file))
{
job.filesToDelete.Add(file);
}
}
foreach(var file in FileIndex.Keys)
{
if(!inputIndex.ContainsKey(file) || !inputIndex[file].SequenceEqual(FileIndex[file]))
{
job.filesToDownload.Add(file);
}
}
var operationCount = job.filesToDelete.Count + job.filesToDownload.Count;
if(operationCount > 0) log.Debug("Generated SyncJob with "+(operationCount)+" operations.");
return operationCount == 0 ? null : job;
}
/// <summary>
/// Perform some sync job on the filesystem. Downloads files using the NodeLibDownload.
/// </summary>
/// <param name="syncJob"></param>
public void PerformSyncJob(SyncJob syncJob)
{
if(syncJob.filesToDelete== null) syncJob.filesToDelete = new List<string>(0);
if(syncJob.filesToDownload ==null) syncJob.filesToDownload = new List<string>(0);
log.Info("Performing filesystem sync, total of "+(syncJob.filesToDelete.Count+syncJob.filesToDownload.Count)+" operations.");
log.Debug("Performing "+syncJob.filesToDelete.Count+" deletions.");
foreach(var fileToDelete in syncJob.filesToDelete)
{
if(File.Exists(libraryPath+"/"+fileToDelete)) File.Delete(libraryPath+"/"+fileToDelete);
}
log.Debug("Performing "+syncJob.filesToDownload.Count+" downloads.");
foreach(var fileToDownload in syncJob.filesToDownload)
{
DownloadFile(fileToDownload, libraryPath);
}
log.Debug("Finished performing sync job.");
}