public Bundle FirstPage(Snapshot snapshot, int count)
{
_store.StoreSnapshot(snapshot);
// Return the first page
return GetPage(snapshot.Id, 0, count);
}
public static Snapshot Create(string title, Uri selflink, ICollection<string> includes, IEnumerable<Uri> keys, int matchCount)
{
Snapshot snapshot = new Snapshot();
snapshot.Id = Guid.NewGuid().ToString();
snapshot.FeedTitle = title;
snapshot.FeedSelfLink = selflink.ToString(); // todo: moet FeedSelfLink geen Uri zijn? - yes. possible.
snapshot.Includes = includes;
snapshot.Contents = keys;
snapshot.MatchCount = (matchCount == 0) ? keys.Count() : matchCount;
return snapshot;
}
public static Snapshot TakeSnapshotFromBundle(Bundle bundle)
{
// Is Snapshot not a type of bundle???
Snapshot snapshot = new Snapshot();
snapshot.FeedTitle = bundle.Title;
snapshot.Id = Guid.NewGuid().ToString();
snapshot.FeedSelfLink = bundle.Links.SelfLink.ToString();
snapshot.Contents = bundle.SelfLinks();
snapshot.MatchCount = snapshot.Contents.Count();
return snapshot;
}
public static Snapshot Create(string title, Uri selflink, IEnumerable<Uri> keys, string sortby, IEnumerable<string> includes = null)
{
Snapshot snapshot = new Snapshot();
snapshot.Id = CreateKey();
snapshot.WhenCreated = DateTimeOffset.UtcNow;
snapshot.FeedTitle = title;
snapshot.FeedSelfLink = selflink.ToString();
snapshot.Includes = (includes != null) ? includes.ToList() : null;
snapshot.Keys = keys;
snapshot.Count = keys.Count();
snapshot.SortBy = sortby;
return snapshot;
}
public Bundle GetPage(Snapshot snapshot, int start, int pagesize)
{
if (pagesize > MAX_PAGE_SIZE) pagesize = MAX_PAGE_SIZE;
if (snapshot == null)
throw new SparkException(HttpStatusCode.NotFound, "There is no paged snapshot with id '{0}'", snapshot.Id);
if (!snapshot.InRange(start))
{
throw new SparkException(HttpStatusCode.NotFound,
"The specified index lies outside the range of available results ({0}) in snapshot {1}",
snapshot.Contents.Count(), snapshot.Id);
}
return createBundle(snapshot, start, pagesize);
}
public Bundle CreateBundle(Snapshot snapshot, int start, int count)
{
Bundle bundle = new Bundle();
bundle.Title = snapshot.FeedTitle;
bundle.TotalResults = snapshot.Count;
bundle.Id = Key.NewUuid();
bundle.AuthorName = "Furore Spark FHIR server";
bundle.AuthorUri = "http://fhir.furore.com";
bundle.Links = new UriLinkList();
bundle.Links.SelfLink = new Uri(snapshot.FeedSelfLink);
bundle.LastUpdated = snapshot.WhenCreated;
IEnumerable<Uri> keys = snapshot.Keys.Skip(start).Take(count);
bundle.Entries = store.Get(keys, snapshot.SortBy).ToList();
Include(bundle, snapshot.Includes);
buildLinks(bundle, snapshot, start, count);
exporter.Externalize(bundle);
return bundle;
}
// Given a set of version id's, go fetch a subset of them from the store and build a Bundle
private Bundle createBundle(Snapshot snapshot, int start, int count)
{
var entryVersionIds = snapshot.Contents.Skip(start).Take(count).ToList();
var pageContents = _store.FindByVersionIds(entryVersionIds).ToList();
var bundle =
BundleEntryFactory.CreateBundleWithEntries(snapshot.FeedTitle, new Uri(snapshot.FeedSelfLink),
"Spark MatchBox Search Engine", null, pageContents);
if (snapshot.MatchCount != Snapshot.NOCOUNT)
bundle.TotalResults = snapshot.MatchCount;
else
bundle.TotalResults = null;
var total = snapshot.Contents.Count();
// If we need paging, add the paging links
if (total > count)
buildLinks(bundle, snapshot.Id, start, count, total);
return bundle;
}
public void AddSnapshot(Snapshot snapshot)
{
var collection = database.GetCollection(Collection.SNAPSHOT);
collection.Save<Snapshot>(snapshot);
}
public void AddSnapshot(Snapshot snapshot)
{
throw new NotImplementedException();
}
private Bundle exportPagedSnapshot(Snapshot snapshot, int pagesize = Const.DEFAULT_PAGE_SIZE)
{
Bundle result = pager.FirstPage(snapshot, pagesize);
exporter.EnsureAbsoluteUris(result);
return result;
}
// Given a set of version id's, go fetch a subset of them from the store and build a Bundle
/*private Bundle createBundle(Snapshot snapshot, int start, int count)
{
var entryVersionIds = snapshot.Keys.Skip(start).Take(count).ToList();
var pageContents = store.Get(entryVersionIds, snapshot.SortBy).ToList();
var bundle =
BundleEntryFactory.CreateBundleWithEntries(snapshot.FeedTitle, new Uri(snapshot.FeedSelfLink),
"Spark MatchBox Search Engine", null, pageContents);
if (snapshot.Count != Snapshot.NOCOUNT)
bundle.TotalResults = snapshot.Count;
else
bundle.TotalResults = null;
var total = snapshot.Keys.Count();
// If we need paging, add the paging links
if (total > count)
buildLinks(bundle, snapshot, start, count);
return bundle;
}
*/
private static void buildLinks(Bundle bundle, Snapshot snapshot, int start, int count)
{
var lastPage = snapshot.Count / count;
// http://spark.furore.com/fhir/_snapshot/
Uri baseurl = new Uri(Settings.Endpoint.ToString() + "/" + FhirRestOp.SNAPSHOT);
bundle.Links.SelfLink =
baseurl
.AddParam(FhirParameter.SNAPSHOT_ID, snapshot.Id)
.AddParam(FhirParameter.SNAPSHOT_INDEX, start.ToString())
.AddParam(FhirParameter.COUNT, count.ToString());
// First
bundle.Links.FirstLink =
baseurl
.AddParam(FhirParameter.SNAPSHOT_ID, snapshot.Id)
.AddParam(FhirParameter.SNAPSHOT_INDEX, "0");
// Last
bundle.Links.LastLink =
baseurl
.AddParam(FhirParameter.SNAPSHOT_ID, snapshot.Id)
.AddParam(FhirParameter.SNAPSHOT_INDEX, (lastPage * count).ToString());
// Only do a Previous if we can go back
if (start > 0)
{
int prevIndex = start - count;
if (prevIndex < 0) prevIndex = 0;
bundle.Links.PreviousLink =
baseurl
.AddParam(FhirParameter.SNAPSHOT_ID, snapshot.Id)
.AddParam(FhirParameter.SNAPSHOT_INDEX, prevIndex.ToString());
}
// Only do a Next if we can go forward
if (start + count < snapshot.Count)
{
int nextIndex = start + count;
bundle.Links.NextLink =
baseurl
.AddParam(FhirParameter.SNAPSHOT_ID, snapshot.Id)
.AddParam(FhirParameter.SNAPSHOT_INDEX, nextIndex.ToString());
}
}