public void DoWork(IRequest request) { EntryRequestType entryRequestType; string resourceKindName; ICorrelatedResSyncInfoStore correlatedResSyncStore; bool includeDataPayloads; //?includePayloads value CorrelatedResSyncInfo[] correlatedResSyncInfos; int totalResult; #region initialization // multi or single entry request? entryRequestType = (String.IsNullOrEmpty(_requestContext.ResourceKey)) ? EntryRequestType.Multi : EntryRequestType.Single; resourceKindName = _requestContext.ResourceKind.ToString(); string tmpValue; // ?includePayloads includeDataPayloads = false; // default value, but check for settings now if (_requestContext.SdataUri.QueryArgs.TryGetValue("includePayload", out tmpValue)) includeDataPayloads = System.Xml.XmlConvert.ToBoolean(tmpValue); // get store to request the correlations correlatedResSyncStore = RequestReceiver.NorthwindAdapter.StoreLocator.GetCorrelatedResSyncStore(_requestContext.SdataContext); #endregion // receive correlated resource synchronization entries if (entryRequestType == EntryRequestType.Multi) { int pageNumber = FeedMetadataHelpers.GetPageNumber(_requestContext); correlatedResSyncInfos = correlatedResSyncStore.GetPaged(resourceKindName, pageNumber, FeedMetadataHelpers.DEFAULT_ITEMS_PER_PAGE, out totalResult); } else { Guid uuid = (Guid)TypeDescriptor.GetConverter(typeof(Guid)).ConvertFrom(_requestContext.ResourceKey); correlatedResSyncInfos = correlatedResSyncStore.GetByUuid(resourceKindName, new Guid[]{uuid}); totalResult = correlatedResSyncInfos.Length; } // Create the feed SyncFeed feed = new SyncFeed(); // initialize the feed feed.Id = FeedMetadataHelpers.BuildBaseUrl(_requestContext, FeedMetadataHelpers.RequestKeywordType.linked); feed.Title = string.Format("{0} Linking Feed", resourceKindName); #region PAGING & OPENSEARCH /* PAGING */ feed.Links = FeedMetadataHelpers.CreatePageFeedLinks(_requestContext, totalResult, FeedMetadataHelpers.RequestKeywordType.linked); /* OPENSEARCH */ PageController pageLinkBuilder = FeedMetadataHelpers.GetPageLinkBuilder(_requestContext, totalResult, FeedMetadataHelpers.RequestKeywordType.linked); feed.Opensearch_ItemsPerPageElement = pageLinkBuilder.GetOpensearch_ItemsPerPageElement(); feed.Opensearch_StartIndexElement = pageLinkBuilder.GetOpensearch_StartIndexElement(); feed.Opensearch_TotalResultsElement = pageLinkBuilder.GetOpensearch_TotalResultsElement(); #endregion feed.FeedType = (entryRequestType == EntryRequestType.Multi) ? FeedType.Linked : FeedType.LinkedSingle; IEntityWrapper wrapper = null; if (includeDataPayloads) wrapper = EntityWrapperFactory.Create(_requestContext.ResourceKind, _requestContext); for (int i=0; i<correlatedResSyncInfos.Length; i++) { SyncFeedEntry entry = null; if (includeDataPayloads) { entry = wrapper.GetFeedEntry(correlatedResSyncInfos[i].LocalId); } else { entry = new SyncFeedEntry(); } entry.Id = FeedMetadataHelpers.BuildLinkedEntryUrl(_requestContext, correlatedResSyncInfos[i].ResSyncInfo.Uuid); entry.Title = FeedMetadataHelpers.BuildLinkedEntryTitle(_requestContext, correlatedResSyncInfos[i].ResSyncInfo.Uuid); #region LINKED ELEMENT LinkedElement linkedElement = new LinkedElement(); linkedElement.Resource = FeedMetadataHelpers.BuildEntryResourceUrl(_requestContext, correlatedResSyncInfos[i].LocalId); linkedElement.Uuid = correlatedResSyncInfos[i].ResSyncInfo.Uuid; entry.Linked = linkedElement; #endregion feed.Entries.Add(entry); } request.Response.Serializer = new SyncFeedSerializer(); request.Response.Feed = (IFeed)feed; request.Response.ContentType = (entryRequestType == EntryRequestType.Multi) ? MediaType.Atom : MediaType.AtomEntry; }
public void DoWork(IRequest request) { // only atom entry supported!!! if (request.ContentType != Sage.Common.Syndication.MediaType.AtomEntry) throw new RequestException("Atom entry content type expected"); // deserialize the request stream to a SyncFeedEntry SyncFeedEntry entry = new SyncFeedEntry(); XmlReader reader = XmlReader.Create(request.Stream); reader.MoveToContent(); entry.ReadXml(reader, typeof(SyncDigestPayload)); if (null == entry.Linked) throw new RequestException("Invalid content: element 'linked' missing"); // We check for equality of the urls of the request url and // in the linked element up to the resourceKind. string requestEndpointUrl = _requestContext.OriginEndPoint; RequestContext entryResourceAsRequestContext = new RequestContext(new Sage.Common.Syndication.SDataUri(entry.Linked.Resource)); // TODO: not really nice here. string linkedResourceUrl = entryResourceAsRequestContext.OriginEndPoint; if (!string.Equals(requestEndpointUrl, linkedResourceUrl, StringComparison.InvariantCultureIgnoreCase)) throw new RequestException("Request url and linked entry resource not matching."); string resourceKindName = _requestContext.ResourceKind.ToString(); Guid currentUuid = (Guid)TypeDescriptor.GetConverter(typeof(Guid)).ConvertFrom(_requestContext.ResourceKey); Guid newUuid = entry.Linked.Uuid; string newLocalId = entryResourceAsRequestContext.SdataUri.CollectionPredicate; // update the correlation entry in the sync store. // if the uuid should be updated we have to remove the current correlation and then add a new one. // otherwise we update the current correlation. ICorrelatedResSyncInfoStore correlatedResSyncInfoStore = RequestReceiver.NorthwindAdapter.StoreLocator.GetCorrelatedResSyncStore(_requestContext.SdataContext); // create the target correlation ResSyncInfo targetResSyncInfo = new ResSyncInfo(newUuid, requestEndpointUrl, 0, string.Empty, DateTime.Now); CorrelatedResSyncInfo targetInfo = new CorrelatedResSyncInfo(newLocalId, targetResSyncInfo); if (currentUuid == newUuid) { correlatedResSyncInfoStore.Update(resourceKindName, targetInfo); } else { correlatedResSyncInfoStore.Delete(resourceKindName, currentUuid); correlatedResSyncInfoStore.Add(resourceKindName, targetInfo); } // create response SyncFeed feed = new SyncFeed(); feed.FeedType = FeedType.LinkedSingle; // create entry SyncFeedEntry responseEntry = new SyncFeedEntry(); responseEntry.Id = FeedMetadataHelpers.BuildLinkedEntryUrl(_requestContext, targetInfo.ResSyncInfo.Uuid); responseEntry.Title = FeedMetadataHelpers.BuildLinkedEntryTitle(_requestContext, targetInfo.ResSyncInfo.Uuid); LinkedElement linkedElement = new LinkedElement(); linkedElement.Resource = FeedMetadataHelpers.BuildEntryResourceUrl(_requestContext, targetInfo.LocalId); linkedElement.Uuid = targetInfo.ResSyncInfo.Uuid; responseEntry.Linked = linkedElement; feed.Entries.Add(responseEntry); request.Response.Serializer = new SyncFeedSerializer(); request.Response.Feed = (IFeed)feed; request.Response.ContentType = MediaType.AtomEntry; }