public void DoWork(IRequest request)
{
string resourceKind = _requestContext.ResourceKind.ToString();
string endpoint = _requestContext.DatasetLink + resourceKind;
SdataContext sdataContext = _requestContext.SdataContext;
ISyncSyncDigestInfoStore syncDigestStore = RequestReceiver.NorthwindAdapter.StoreLocator.GetSyncDigestStore(sdataContext);
SyncDigestInfo syncDigestInfo = syncDigestStore.Get(resourceKind);
SyncDigestPayload syncDigestPayload = new SyncDigestPayload();
syncDigestPayload.Digest.Origin = endpoint;
// create a new initial syncDigest and store it.
if ((null == syncDigestInfo) || (syncDigestInfo.Count == 0))
{
SyncFeedDigestEntry entry = new SyncFeedDigestEntry();
entry.ConflictPriority = 0;
entry.Endpoint = endpoint;
entry.Stamp = DateTime.Now;
entry.Tick = -1;
syncDigestPayload.Digest.Entries.Add(entry);
}
else
{
foreach (SyncDigestEntryInfo digestEntry in syncDigestInfo)
{
SyncFeedDigestEntry entry = new SyncFeedDigestEntry();
entry.ConflictPriority = digestEntry.ConflictPriority;
entry.Endpoint = digestEntry.Endpoint;
//entry.Stamp = digestEntry.;
entry.Tick = digestEntry.Tick;
syncDigestPayload.Digest.Entries.Add(entry);
}
}
SyncFeed feed = new SyncFeed();
string url = endpoint + "/$syncDigest";
FeedLink link = new FeedLink(url, LinkType.Self, MediaType.AtomEntry);
feed.Links = new FeedLinkCollection();
feed.Links.Add(link);
feed.Id = url;
feed.FeedType = FeedType.ResourceEntry;
SyncFeedEntry syncFeedEntry = new SyncFeedEntry();
syncFeedEntry.Payload = syncDigestPayload;
syncFeedEntry.Title = "Synchronization digest";
syncFeedEntry.Id = url;
syncFeedEntry.Links.Add(link);
feed.Entries.Add(syncFeedEntry);
feed.Id = url;
request.Response.Serializer = new SyncFeedSerializer();
request.Response.Feed = feed;
request.Response.ContentType = MediaType.AtomEntry;
}
/// <summary>
///
/// </summary>
/// <param name="config"></param>
/// <returns></returns>
/// <remarks>This method is not threadsafe as the performer must be finished when calling this method.</remarks>
public SyncFeed GetFeed(NorthwindConfig config, int startIndex, int count)
{
SyncFeed feed;
SdataContext sdataContext;
SupportedResourceKinds resource;
string resourceKind;
string endpoint;
Guid trackingId;
List<CorrelatedResSyncInfo> correlatedResSyncInfos;
sdataContext = _parentPerformer._requestContext.SdataContext;
resource = _parentPerformer._requestContext.ResourceKind;
resourceKind = resource.ToString();
correlatedResSyncInfos = _parentPerformer._asyncStateObj.CorrelatedResSyncInfos;
endpoint = _parentPerformer._requestContext.DatasetLink + resourceKind;
trackingId = _parentPerformer._requestContext.TrackingId;
ISyncSyncDigestInfoStore syncDigestStore = RequestReceiver.NorthwindAdapter.StoreLocator.GetSyncDigestStore(sdataContext);
SyncDigestInfo syncDigestInfo = syncDigestStore.Get(resourceKind);
if (count == 0)
count = 10;
feed = new SyncFeed();
Token emptyToken = new Token();
feed.Digest = new SyncFeedDigest();
feed.Digest.Origin = _parentPerformer._requestContext.OriginEndPoint;
feed.Digest.Entries = new List<SyncFeedDigestEntry>();
if (syncDigestInfo != null)
{
foreach (SyncDigestEntryInfo entryinfo in syncDigestInfo)
{
SyncFeedDigestEntry entry = new SyncFeedDigestEntry();
entry.ConflictPriority = entryinfo.ConflictPriority;
entry.Endpoint = entryinfo.Endpoint;
entry.Tick = entryinfo.Tick;
entry.Stamp = DateTime.Now;
feed.Digest.Entries.Add(entry);
}
}
IEntityWrapper wrapper = EntityWrapperFactory.Create(resource, _parentPerformer._requestContext);
for (int index = startIndex;
index < ((startIndex + count > correlatedResSyncInfos.Count) ? correlatedResSyncInfos.Count : startIndex + count);
index++)
{
CorrelatedResSyncInfo resSyncInfo = (CorrelatedResSyncInfo)correlatedResSyncInfos[index];
SyncFeedEntry entry = wrapper.GetFeedEntry(resSyncInfo);
if (entry != null)
feed.Entries.Add(entry);
else
{
entry = new SyncFeedEntry();
entry.HttpMethod = "DELETE";
entry.Uuid = resSyncInfo.ResSyncInfo.Uuid;
feed.Entries.Add(entry);
}
}
// initialize the feed
string url = string.Format("{0}/$syncSource('{1}')", endpoint, trackingId);
feed.Id = url;
feed.Title = resourceKind;
#region PAGING & OPENSEARCH
int totalResults = correlatedResSyncInfos.Count;
PageController pageController = new PageController(startIndex+1, FeedMetadataHelpers.DEFAULT_ITEMS_PER_PAGE, totalResults, count, url);
/* PAGING */
FeedLinkCollection feedLinks = new FeedLinkCollection();
feedLinks.Add(new FeedLink(pageController.GetLinkSelf(), LinkType.Self, MediaType.Atom, "Current Page"));
feedLinks.Add(new FeedLink(pageController.GetLinkFirst(), LinkType.First, MediaType.Atom, "First Page"));
feedLinks.Add(new FeedLink(pageController.GetLinkLast(), LinkType.Last, MediaType.Atom, "Last Page"));
string linkUrl;
if (pageController.GetLinkNext(out linkUrl))
feedLinks.Add(new FeedLink(linkUrl, LinkType.Next, MediaType.Atom, "Next Page"));
if (pageController.GetLinkPrevious(out linkUrl))
feedLinks.Add(new FeedLink(linkUrl, LinkType.Previous, MediaType.Atom, "Previous Page"));
feed.Links = feedLinks;
/* OPENSEARCH */
feed.Opensearch_ItemsPerPageElement = pageController.GetOpensearch_ItemsPerPageElement();
feed.Opensearch_StartIndexElement = pageController.GetOpensearch_StartIndexElement();
feed.Opensearch_TotalResultsElement = pageController.GetOpensearch_TotalResultsElement();
#endregion
//feed.Id = url;
//if (startIndex + count < correlatedResSyncInfos.Count)
//{
// FeedLink linkNext = new FeedLink(string.Format("{0}?startIndex={1}&count=10", url, startIndex + count), LinkType.Next);
// feed.Links.Add(linkNext);
//}
//FeedLink linkFirst = new FeedLink(String.Format("{0}?startIndex=0&count=10", url), LinkType.First);
//feed.Links.Add(linkFirst);
//FeedLink linkSelf = new FeedLink(String.Format("{0}?startIndex={1}&count=10", url, startIndex), LinkType.Self);
//feed.Links.Add(linkSelf);
return feed;
}
