internal CancellableEnumerable <TItem> CallAndCollect <TItem>(Action <CancellableBlockingCollection <TItem> > call, Action <CancellableBlockingCollection <TItem> > atFinally = null)
{
var collection = new CancellableBlockingCollection <TItem>();
Task.Factory.StartNew(() => {
try {
call(collection);
} catch (Exception e) {
e.Dump();
} finally {
if (atFinally != null)
{
atFinally(collection);
}
collection.CompleteAdding();
}
});
return(collection);
}
private IEnumerable <string> _UnpackArchive(string localFilename, string destinationFolder, Object requestImpl)
{
var info = new ZipInfo(localFilename);
var files = info.GetFiles();
var percent = 0;
var index = 0;
var processed = new List <string>();
using (var request = requestImpl.As <Request>()) {
// request.Debug("Unpacking {0} {1}", localFilename, destinationFolder);
var pid = request.StartProgress(0, "Unpacking Archive '{0}' ", Path.GetFileName(localFilename));
try {
info.Unpack(destinationFolder, (sender, args) => {
if (args.ProgressType == ArchiveProgressType.FinishFile)
{
processed.Add(Path.Combine(destinationFolder, args.CurrentFileName));
index++;
var complete = (index * 100) / files.Count;
if (complete != percent)
{
percent = complete;
request.Progress(pid, percent, "Unpacked {0}", args.CurrentFileName);
}
/*
* Does not currently support cancellation .
* Todo: add cancellation support to DTF compression classes.
* */
if (request.IsCancelled())
{
throw new OperationCanceledException("cancelling");
}
}
});
} catch (OperationCanceledException) {
// no worries.
} catch (Exception e) {
e.Dump();
}
// request.Debug("DONE Unpacking {0} {1}", localFilename, destinationFolder);
request.CompleteProgress(pid, true);
}
// return the list of files to the parent.
return(processed.ToArray());
#if manually
var result = new CancellableBlockingCollection <string>();
Task.Factory.StartNew(() => {
using (var request = requestImpl.As <Request>()) {
request.Debug("Unpacking {0} {1}", localFilename, destinationFolder);
var info = new ZipInfo(localFilename);
var files = info.GetFiles();
request.Debug("File Count", files.Count);
var percent = 0;
var index = 0;
foreach (var zipfile in info)
{
index++;
var complete = (index * 100) / files.Count;
if (complete != percent)
{
percent = complete;
request.Debug("Percent Complete {0}", percent);
}
var outputFilename = Path.Combine(destinationFolder, zipfile.Path, zipfile.Name);
zipfile.CopyTo(outputFilename, true);
result.Add(outputFilename);
}
request.Debug("DONE Unpacking {0} {1}", localFilename, destinationFolder);
result.CompleteAdding();
}
});
return(CancellableBlockingCollection <string> .ToCancellableEnumerable(result));
#endif
/*
* var info = new ZipInfo(localFilename);
*
* foreach (var zipfile in info.GetFiles()) {
* var outputFilename = Path.Combine(destinationFolder, zipfile.Path, zipfile.Name);
* zipfile.CopyTo(outputFilename, true);
*
* yield return outputFilename;
* }
* */
}
