/// <summary>
/// Attempt to load the dataset from another location.
/// </summary>
/// <param name="dsinfo"></param>
/// <param name="status"></param>
/// <param name="filter"></param>
/// <returns></returns>
private static Uri[] LoadDatasetFromOtherSource(WindowsDataset dsLocalLocation,
DSInfo dsinfo,
Action<string> status,
Func<string[], string[]> filter,
string locName,
IFetchToRemoteLinuxDir fetcher,
string linuxLocation,
Func<bool> failNow,
int timeout)
{
// First, attempt to find the Uri's from somewhere that we can see and easily copy.
try
{
var files = GRIDDatasetLocator.FetchDatasetUris(dsinfo.Name, status, filter, locationFilter: locname => locname != locName, failNow: failNow);
var dsinfoRemote = GRIDDatasetLocator.FetchDSInfo(dsinfo.Name, filter, locationFilter: locname => locname != locName);
if (files != null)
{
dsLocalLocation.MarkAsPartialDownload(dsinfo.Name);
var flookup = new HashSet<string>(dsLocalLocation.FindDSFiles(dsinfo.Name, returnWhatWeHave: true).Select(u => Path.GetFileName(u.LocalPath)));
foreach (var fremote in files)
{
if (!flookup.Contains(Path.GetFileName(fremote.LocalPath)))
{
var f = new FileInfo(fremote.LocalPath);
if (status != null)
{
status(string.Format("Copying file {0}.", f.Name));
}
f.CopyTo(Path.Combine(dsLocalLocation.LocationOfDataset(dsinfo.Name).FullName, f.Name));
}
}
// And update the meta data.
dsLocalLocation.SaveListOfDSFiles(dsinfo.Name, dsinfoRemote.ListOfFiles());
dsLocalLocation.RemovePartialDownloadMark(dsinfo.Name);
// The files are all local. So we are going to have to see if there is a backup to do the download for us.
return dsLocalLocation.FindDSFiles(dsinfo.Name, filter);
}
}
catch (InvalidOperationException)
{
// No worries - we weren't able to run one of the data finders.
// We go onto the next step.
}
// OK, nothing could get them. We need to fall back on our secondary copy method. So copy everything to a local Linux directory, and then
// copy from there down to here.
dsLocalLocation.MarkAsPartialDownload(dsinfo.Name);
var allfiles = fetcher.GetListOfFiles(dsinfo.Name, status, failNow: failNow);
var linuxLocationPerDS = $"{linuxLocation}/{dsinfo.Name}";
fetcher.Fetch(dsinfo.Name, linuxLocationPerDS, status, filter, failNow: failNow, timeout: timeout);
// Next, copy the files from there down to our location.
dsLocalLocation.SaveListOfDSFiles(dsinfo.Name, allfiles);
fetcher.CopyFromRemote(linuxLocationPerDS, dsLocalLocation.LocationOfDataset(dsinfo.Name), status, removeDirectoryWhenDone: true);
dsLocalLocation.RemovePartialDownloadMark(dsinfo.Name);
return dsLocalLocation.FindDSFiles(dsinfo.Name, filter);
}
/// <summary>
/// Initialized the fetch to Linux code, where the Linux stuff is visible on windows.
/// </summary>
/// <param name="windowsFilesLocation"></param>
/// <param name="fetcher"></param>
/// <param name="rootLinuxLocation"></param>
public GRIDFetchToLinuxVisibleOnWindows(DirectoryInfo windowsFilesLocation, IFetchToRemoteLinuxDir fetcher, string rootLinuxLocation)
{
_winDataset = new WindowsDataset(windowsFilesLocation);
LinuxFetcher = fetcher;
LinuxRootDSDirectory = rootLinuxLocation;
}