public override IEnumerable <IssueTrackerEvent> parseIssueTrackerEvents()
{
// First get the patch uploads
IEnumerable <BugzillaAttachmentInfo> attachmentList = (IEnumerable <BugzillaAttachmentInfo>)AttachmentFactory.parseIssueTrackerEvents();
// Lookup table to add file names to BugzillaReviews
Dictionary <UInt64, IList <string> > dictAttachments = attachmentList.ToDictionary(bai => bai.AttachmentId, bai => bai.Filenames);
// Second, get reviews
IEnumerable <BugzillaReview> reviewList = GetActivityInfoFromFile(InputFilePath, dictAttachments);
HashSet <int> setOfAllUsedBugIds = new HashSet <int>(reviewList.Select(review => review.BugId));
AttachmentFactory.IncludeAttachmentsFilter = (attachment) => setOfAllUsedBugIds.Contains(attachment.BugId);
attachmentList = (IEnumerable <BugzillaAttachmentInfo>)AttachmentFactory.parseIssueTrackerEvents(); // re-read the list
return(MergeUtils.Merge <IssueTrackerEvent>(attachmentList, reviewList, (patch, review) => patch.When <= review.When));
}