/// <summary>Creates a many-to-one or one-to-one relationship between two objects in the object context.</summary>
/// <param name="entity">The object being attached.</param>
/// <exception cref="T:System.ArgumentNullException">When the entity is null.</exception>
/// <exception cref="T:System.InvalidOperationException">When the entity cannot be related to the current related end. This can occur when the association in the conceptual schema does not support a relationship between the two types.</exception>
public void Attach(TEntity entity)
{
Check.NotNull(entity, "entity");
CheckOwnerNull();
Attach(new[] { EntityWrapperFactory.WrapEntityUsingContext(entity, ObjectContext) }, false);
}
public void DoWork(IRequest request)
{
if (String.IsNullOrEmpty(_requestContext.ResourceKey))
{
throw new RequestException("Please use single resource url");
}
IEntityWrapper wrapper;
wrapper = EntityWrapperFactory.Create(_requestContext.ResourceKind, _requestContext);
SdataTransactionResult sdTrResult = wrapper.Delete(_requestContext.ResourceKey);
if (sdTrResult == null)
{
throw new RequestException("Entity does not exists");
}
if (sdTrResult.HttpStatus == System.Net.HttpStatusCode.OK)
{
request.Response.StatusCode = System.Net.HttpStatusCode.OK;
}
else
{
throw new RequestException(sdTrResult.HttpMessage);
}
}
public void DoWork(IRequest request)
{
if (request.ContentType != Sage.Common.Syndication.MediaType.AtomEntry)
{
throw new RequestException("Atom entry content type expected");
}
if (!String.IsNullOrEmpty(_requestContext.ResourceKey))
{
throw new RequestException("Please use resource url");
}
// read entry from stream
SyncFeedEntry entry = new SyncFeedEntry();
XmlReader reader = XmlReader.Create(request.Stream);
reader.MoveToContent();
entry.ReadXml(reader, ResourceKindHelpers.GetPayloadType(_requestContext.ResourceKind));
IEntityWrapper wrapper = EntityWrapperFactory.Create(_requestContext.ResourceKind, _requestContext);
Document document = wrapper.GetTransformedDocument(entry.Payload, entry.SyncLinks);
if (!String.IsNullOrEmpty(document.Id))
{
throw new RequestException("Entity alredy exists");
}
// Add Document
SdataTransactionResult sdTrResult = wrapper.Add(entry.Payload, entry.SyncLinks);
if (sdTrResult == null)
{
throw new RequestException("Entity does not exists"); //?????
}
if ((sdTrResult.HttpStatus == System.Net.HttpStatusCode.OK) ||
(sdTrResult.HttpStatus == System.Net.HttpStatusCode.Created))
{
// store correlation
SyncFeedEntry responseEntry = wrapper.GetFeedEntry(sdTrResult.LocalId);
SyncFeed feed = new SyncFeed();
feed.FeedType = FeedType.ResourceEntry;
feed.Entries.Add(responseEntry);
request.Response.StatusCode = System.Net.HttpStatusCode.Created;
request.Response.Serializer = new SyncFeedSerializer();
request.Response.Feed = feed;
request.Response.Protocol.SendUnknownResponseHeader("Location", responseEntry.Id);
request.Response.ContentType = Sage.Common.Syndication.MediaType.AtomEntry;
}
else
{
throw new RequestException(sdTrResult.HttpMessage);
}
}
/// <summary>Defines relationships between an object and a collection of related objects in an object context.</summary>
/// <remarks>
/// Loads related entities into the local collection. If the collection is already filled
/// or partially filled, merges existing entities with the given entities. The given
/// entities are not assumed to be the complete set of related entities.
/// Owner and all entities passed in must be in Unchanged or Modified state. We allow
/// deleted elements only when the state manager is already tracking the relationship
/// instance.
/// </remarks>
/// <param name="entities">Collection of objects in the object context that are related to the source object.</param>
/// <exception cref="T:System.ArgumentNullException"> entities collection is null.</exception>
/// <exception cref="T:System.InvalidOperationException">
/// The source object or an object in the entities collection is null or is not in an
/// <see
/// cref="F:System.Data.Entity.EntityState.Unchanged" />
/// or <see cref="F:System.Data.Entity.EntityState.Modified" /> state.-or-The relationship cannot be defined based on the EDM metadata. This can occur when the association in the conceptual schema does not support a relationship between the two types.
/// </exception>
public void Attach(IEnumerable <TEntity> entities)
{
Check.NotNull(entities, "entities");
CheckOwnerNull();
IList <IEntityWrapper> wrappedEntities = new List <IEntityWrapper>();
foreach (var entity in entities)
{
wrappedEntities.Add(EntityWrapperFactory.WrapEntityUsingContext(entity, ObjectContext));
}
Attach(wrappedEntities, true);
}
public void OnCollectionDeserialized(StreamingContext context)
{
if (_relatedEntities != null)
{
// We need to call this here so that the hash set will be fully constructed
// ready for access. Normally, this would happen later in the process.
_relatedEntities.OnDeserialization(null);
_wrappedRelatedEntities = new Dictionary <TEntity, IEntityWrapper>();
foreach (TEntity entity in _relatedEntities)
{
_wrappedRelatedEntities.Add(entity, EntityWrapperFactory.WrapEntityUsingContext(entity, ObjectContext));
}
}
}
internal override void Include(bool addRelationshipAsUnchanged, bool doAttach)
{
if (null != _wrappedRelatedEntities && null != this.ObjectContext)
{
List <IEntityWrapper> wrappedRelatedEntities = new List <IEntityWrapper>(_wrappedRelatedEntities.Values);
foreach (IEntityWrapper wrappedEntity in wrappedRelatedEntities)
{
// Sometimes with mixed POCO and IPOCO, you can get different instances of IEntityWrappers stored in the IPOCO related ends
// These should be replaced by the IEntityWrapper that is stored in the context
IEntityWrapper identityWrapper = EntityWrapperFactory.WrapEntityUsingContext(wrappedEntity.Entity, WrappedOwner.Context);
if (identityWrapper != wrappedEntity)
{
_wrappedRelatedEntities[(TEntity)identityWrapper.Entity] = identityWrapper;
}
IncludeEntity(identityWrapper, addRelationshipAsUnchanged, doAttach);
}
}
}
public void DoWork(IRequest request)
{
IEntityWrapper wrapper = EntityWrapperFactory.Create(_requestContext.ResourceKind, _requestContext);
SyncFeed syncFeed = wrapper.GetFeed();
request.Response.Serializer = new SyncFeedSerializer();
if (String.IsNullOrEmpty(_requestContext.ResourceKey))
{
syncFeed.FeedType = FeedType.Resource;
request.Response.ContentType = Sage.Common.Syndication.MediaType.Atom;
}
else
{
syncFeed.FeedType = FeedType.ResourceEntry;
request.Response.ContentType = Sage.Common.Syndication.MediaType.AtomEntry;
}
request.Response.Feed = syncFeed;
}
internal override void Include(bool addRelationshipAsUnchanged, bool doAttach)
{
Debug.Assert(this.ObjectContext != null, "Should not be trying to add entities to state manager if context is null");
// If we have an actual value or a key for this reference, add it to the context
if (null != _wrappedCachedValue.Entity)
{
// Sometimes with mixed POCO and IPOCO, you can get different instances of IEntityWrappers stored in the IPOCO related ends
// These should be replaced by the IEntityWrapper that is stored in the context
IEntityWrapper identityWrapper = EntityWrapperFactory.WrapEntityUsingContext(_wrappedCachedValue.Entity, WrappedOwner.Context);
if (identityWrapper != _wrappedCachedValue)
{
_wrappedCachedValue = identityWrapper;
}
IncludeEntity(_wrappedCachedValue, addRelationshipAsUnchanged, doAttach);
}
else if (DetachedEntityKey != null)
{
IncludeEntityKey(doAttach);
}
// else there is nothing to add for this relationship
}
public void OnRefDeserialized(StreamingContext context)
{
_wrappedCachedValue = EntityWrapperFactory.WrapEntityUsingContext(_cachedValue, ObjectContext);
}
/// <summary>
/// Attaches an entity to the EntityReference. The given
/// entity is not assumed to be the complete set of related entities.
///
/// Owner and all entities passed in must be in Unchanged or Modified state.
/// Deleted elements are allowed only when the state manager is already tracking the relationship
/// instance.
/// </summary>
/// <param name="entity">The entity to attach to the EntityCollection</param>
/// <exception cref="ArgumentNullException">Thrown when <paramref name="entity"/> is null.</exception>
/// <exception cref="InvalidOperationException">Thrown when the entity cannot be related via the current relationship end.</exception>
public void Attach(TEntity entity)
{
CheckOwnerNull();
EntityUtil.CheckArgumentNull(entity, "entity");
Attach(new IEntityWrapper[] { EntityWrapperFactory.WrapEntityUsingContext(entity, ObjectContext) }, false);
}
internal bool RemoveInternal(TEntity entity)
{
return(Remove(EntityWrapperFactory.WrapEntityUsingContext(entity, ObjectContext), /*preserveForeignKey*/ false));
}
/// <summary>Adds an object to the collection.</summary>
/// <param name="item">
/// An object to add to the collection. entity must implement
/// <see
/// cref="T:System.Data.Entity.Core.Objects.DataClasses.IEntityWithRelationships" />
/// .
/// </param>
/// <exception cref="T:System.ArgumentNullException"> entity is null.</exception>
public void Add(TEntity item)
{
Check.NotNull(item, "item");
Add(EntityWrapperFactory.WrapEntityUsingContext(item, ObjectContext));
}
// Asynchronous called method
private void Execute(NorthwindConfig config, SyncFeed feed)
{
#region Declarations
SdataContext sdataContext;
SupportedResourceKinds resource;
IAppBookmarkInfoStore appBookmarkInfoStore;
ICorrelatedResSyncInfoStore correlatedResSyncInfoStore;
ISyncSyncDigestInfoStore syncDigestStore;
GuidConverter guidConverter = new GuidConverter();
string resourceKind;
string endpoint;
SyncFeedDigest sourceDigest;
SyncDigestInfo targetDigest;
IEntityWrapper wrapper;
#endregion
#region init
sdataContext = _parentPerformer._requestContext.SdataContext;
resource = _parentPerformer._requestContext.ResourceKind;
resourceKind = resource.ToString();
endpoint = _parentPerformer._requestContext.DatasetLink + resourceKind;
appBookmarkInfoStore = RequestReceiver.NorthwindAdapter.StoreLocator.GetAppBookmarkStore(sdataContext);
correlatedResSyncInfoStore = RequestReceiver.NorthwindAdapter.StoreLocator.GetCorrelatedResSyncStore(sdataContext);
syncDigestStore = RequestReceiver.NorthwindAdapter.StoreLocator.GetSyncDigestStore(sdataContext);
sourceDigest = feed.Digest;
targetDigest = syncDigestStore.Get(resourceKind);
wrapper = EntityWrapperFactory.Create(resource, _parentPerformer._requestContext);
#endregion
#region process entries
bool sourceIsDeleteMode;
SdataTransactionResult sdTrResult;
SyncState sourceState;
SyncState targetState;
foreach (SyncFeedEntry entry in feed.Entries)
{
sdTrResult = null;
try
{
// Check whether the source entry had been deleted.
// if not we expect a payload!
// The variable 'sourceIsDeleteMode' holds the result of this check for later calls.
if (entry.HttpMethod.Equals("DELETE", StringComparison.InvariantCultureIgnoreCase))
{
sourceIsDeleteMode = true;
}
else if (null == entry.Payload)
{
throw new Exception("Payload missing.");
}
else
{
sourceIsDeleteMode = false;
}
// set the uuid to the payload.SyncUuid property
if (!sourceIsDeleteMode)
{
entry.Payload.SyncUuid = entry.Uuid;
}
// get the source syncstate
sourceState = entry.SyncState;
// Look into the store to get all correlations of the uuid received from source
CorrelatedResSyncInfo[] corelations = correlatedResSyncInfoStore.GetByUuid(resourceKind, new Guid[] { entry.Uuid });
if (corelations.Length == 0)
{
if (sourceIsDeleteMode)
{
// the source entry had been deleted and no correlation exists for this
// entry in the target.
// So we do nothing here.
sdTrResult = new SdataTransactionResult();
sdTrResult.HttpStatus = HttpStatusCode.OK;
sdTrResult.HttpMessage = "OK";
sdTrResult.HttpMethod = "DELETE";
sdTrResult.ResourceKind = resource;
sdTrResult.Uuid = entry.Uuid;
}
else
{
// no target entry exists for the updated or added source entry.
// So we add the source entry to the application and add a new correlation to the sync store.
// If this operation fails we will have to set the result state to conflict.
try
{
// add the entry to application
sdTrResult = wrapper.Add(entry.Payload, entry.SyncLinks);
if ((sdTrResult != null) && ((sdTrResult.HttpStatus == HttpStatusCode.OK) || (sdTrResult.HttpStatus == HttpStatusCode.Created)))
{
string etag = EtagServices.ComputeEtag(entry.Payload, true);
ResSyncInfo resSyncInfo =
new ResSyncInfo(entry.Uuid, entry.SyncState.Endpoint,
entry.SyncState.Tick, etag, entry.SyncState.Stamp);
CorrelatedResSyncInfo correlatedResSyncInfo = new CorrelatedResSyncInfo(sdTrResult.LocalId, resSyncInfo);
// store the new correlation to the sync store
correlatedResSyncInfoStore.Put(resourceKind, correlatedResSyncInfo);
// update the sync digest entry if the tick of the source entry is newer than the actual tick of the target.
syncDigestStore.PersistNewer(resourceKind, correlatedResSyncInfo.ResSyncInfo);
}
}
catch (Exception e)
{
// in case of an unexpected error while adding a new entry to target
// we create a transaction result with the state 'Conflict'
sdTrResult = new SdataTransactionResult();
sdTrResult.HttpStatus = HttpStatusCode.Conflict;
sdTrResult.HttpMethod = "POST";
sdTrResult.HttpMessage = e.ToString();
sdTrResult.ResourceKind = resource;
sdTrResult.Uuid = entry.Uuid;
}
}
}
else
{
// a correlation was found for the source entry.
#region update or delete
try
{
bool doUpdate = false;
//bool doDelete = false;
bool isConflict = true;
// set the LocalID from correlation to the entry.Payload.LocalID property
// only if source had not been deleted.
if (!sourceIsDeleteMode)
{
entry.Payload.LocalID = corelations[0].LocalId;
}
targetState = Helper.GetSyncState(corelations[0]);
//If sourceState.endpoint = targetState.endpoint,
//there is no conflict and the update must be applied
//if sourceState.tick > targetState.tick.
if (targetState.Endpoint.Equals(sourceState.Endpoint, StringComparison.InvariantCultureIgnoreCase))
{
isConflict = false;
if (sourceState.Tick > targetState.Tick)
{
//if (!sourceIsDeleteMode)
doUpdate = true;
//else
// doDelete = true;
}
}
else
{
SyncState sourceDigestSyncState = Helper.GetSyncState(sourceDigest, targetState.Endpoint);;
SyncState targetDigestSyncState = Helper.GetSyncState(targetDigest, sourceState.Endpoint);
//If targetState is contained in sourceDigest,
//i.e. if sourceDigest has a digest entry E such that E.endpoint = targetState.endpoint
//and E.tick >= targetState.tick, there is no conflict and the update must be applied.
if (sourceDigestSyncState != null)
{
if (sourceDigestSyncState.Tick > targetState.Tick)
{
doUpdate = true;
isConflict = false;
}
}
//If sourceState is contained in targetDigest,
//i.e. if targetDigest has a digest entry E such that E.endpoint = sourceState.endpoint
//and E.tick >= sourceState.tick, there is no conflict and the update must be ignored
//(target has the most recent version).
if (targetDigestSyncState != null)
{
if (targetDigestSyncState.Tick > sourceState.Tick)
{
doUpdate = false;
isConflict = false;
}
}
//Otherwise (targetState not contained in sourceDigest, sourceState not contained in targetDigest),
//there is a conflict.
if ((sourceDigestSyncState == null) && (targetDigestSyncState == null))
{
isConflict = true;
}
}
//****************** Conflict ****************
//In case of conflict, the target endpoint uses the following algorithm to resolve the conflict:
//Let sourceEntry be the sourceDigest digest entry such that sourceEntry.endpoint = sourceState.endpoint.
//Let targetEntry be the targetDigest digest entry such that targetEntry.endpoint = targetState.endpoint.
//If sourceEntry .conflictPriority <> targetEntry .conflictPriority, the side with lowest priority wins.
if (isConflict)
{
int sourceConflictPriority = Helper.GetConflictPriority(sourceDigest, sourceState.Endpoint);
int targetConflictPriority = Helper.GetConflictPriority(targetDigest, targetState.Endpoint);
if (sourceConflictPriority > targetConflictPriority)
{
doUpdate = true;
}
else if (sourceConflictPriority < targetConflictPriority)
{
doUpdate = false;
}
else
{
//Otherwise (sourceEntry .conflictPriority = targetEntry .conflictPriority),
//then sourceState.stamp and targetState.stamp are compared
//and the entry with the most recent timestamp wins.
if (sourceState.Stamp > targetState.Stamp)
{
doUpdate = true;
}
}
}
ResSyncInfo resSyncInfo =
new ResSyncInfo(entry.Uuid, entry.SyncState.Endpoint,
entry.SyncState.Tick, "", entry.SyncState.Stamp);
if (doUpdate && !sourceIsDeleteMode)
{
// update the entry in the application and update the sync store
sdTrResult = wrapper.Update(entry.Payload, entry.SyncLinks);
if ((sdTrResult != null) && (sdTrResult.HttpStatus == HttpStatusCode.OK))
{
string etag = EtagServices.ComputeEtag(entry.Payload, true);
resSyncInfo =
new ResSyncInfo(entry.Uuid, entry.SyncState.Endpoint,
entry.SyncState.Tick, etag, entry.SyncState.Stamp);
CorrelatedResSyncInfo correlatedResSyncInfo = new CorrelatedResSyncInfo(sdTrResult.LocalId, resSyncInfo);
correlatedResSyncInfoStore.Put(resourceKind, correlatedResSyncInfo);
}
}
else if (!doUpdate && !sourceIsDeleteMode)
{
sdTrResult = new SdataTransactionResult();
sdTrResult.HttpStatus = HttpStatusCode.Conflict;
sdTrResult.HttpMethod = "PUT";
sdTrResult.HttpMessage = "";
sdTrResult.ResourceKind = resource;
sdTrResult.Uuid = entry.Uuid;
}
else if (doUpdate && sourceIsDeleteMode)
{
// delete the entry in the application and update the sync store
// we do not support nested deletion. So only TradingAccounts and SalesOrders can be deleted.
if (resource == SupportedResourceKinds.tradingAccounts ||
resource == SupportedResourceKinds.salesOrders)
{
sdTrResult = wrapper.Delete(corelations[0].LocalId);
if ((sdTrResult != null) && (sdTrResult.HttpStatus == HttpStatusCode.OK))
{
correlatedResSyncInfoStore.Delete(resource.ToString(), corelations[0].ResSyncInfo.Uuid);
}
}
else
{
// this does not correspond to real fact, what we did at target side!
sdTrResult = new SdataTransactionResult();
sdTrResult.HttpStatus = HttpStatusCode.OK;
sdTrResult.HttpMessage = "OK";
sdTrResult.HttpMethod = "DELETE";
sdTrResult.ResourceKind = resource;
sdTrResult.Uuid = entry.Uuid;
}
}
else
{
sdTrResult = new SdataTransactionResult();
sdTrResult.HttpStatus = HttpStatusCode.Conflict;
sdTrResult.HttpMessage = "";
sdTrResult.HttpMethod = "DELETE";
sdTrResult.ResourceKind = resource;
sdTrResult.Uuid = entry.Uuid;
}
syncDigestStore.PersistNewer(resourceKind, resSyncInfo);
}
catch (Exception e)
{
sdTrResult = new SdataTransactionResult();
sdTrResult.HttpStatus = HttpStatusCode.Conflict;
sdTrResult.HttpMethod = "PUT";
sdTrResult.HttpMessage = e.ToString();
sdTrResult.ResourceKind = resource;
sdTrResult.Uuid = entry.Uuid;
}
#endregion
}
}
catch (Exception e)
{
sdTrResult = new SdataTransactionResult();
sdTrResult.HttpStatus = HttpStatusCode.Conflict;
sdTrResult.HttpMessage = e.ToString();
sdTrResult.ResourceKind = resource;
sdTrResult.Uuid = entry.Uuid;
}
#region store transaction result
if (sdTrResult != null)
{
lock (_parentPerformer._asyncStateObj)
{
this._parentPerformer._asyncStateObj.TransactionResults.Add(sdTrResult);
}
}
#endregion
}
#endregion
// Set tracking phase
lock (_parentPerformer._asyncStateObj.Tracking)
{
_parentPerformer._asyncStateObj.Tracking.Phase = TrackingPhase.FINISH;
}
}
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)
{
if (request.ContentType != Sage.Common.Syndication.MediaType.AtomEntry)
{
throw new RequestException("Atom entry content type expected");
}
if (String.IsNullOrEmpty(_requestContext.ResourceKey))
{
throw new RequestException("Please use single resource url");
}
//SupportedResourceKinds resKind = _requestContext.ResourceKind;
//switch (resKind)
//{
// case SupportedResourceKinds.tradingAccounts:
// case SupportedResourceKinds.contacts:
// case SupportedResourceKinds.phoneNumbers:
// case SupportedResourceKinds.postalAddresses:
// break;
// default:
// throw new RequestException("Put is not Supported for requested resource");
//}
// read entry from stream
SyncFeedEntry entry = new SyncFeedEntry();
XmlReader reader = XmlReader.Create(request.Stream);
reader.MoveToContent();
entry.ReadXml(reader, ResourceKindHelpers.GetPayloadType(_requestContext.ResourceKind));
IEntityWrapper wrapper = EntityWrapperFactory.Create(_requestContext.ResourceKind, _requestContext);
Token emptyToken = new Token();
Identity identity = wrapper.GetIdentity(_requestContext.ResourceKey);
Document originalDocument = wrapper.Entity.GetDocument(identity, emptyToken, _requestContext.Config);
if (originalDocument.LogState == LogState.Deleted)
{
throw new RequestException("Entity does not exists");
}
entry.Payload.LocalID = _requestContext.ResourceKey;
SdataTransactionResult sdTrResult = wrapper.Update(entry.Payload, entry.SyncLinks);
if (sdTrResult == null)
{
SyncFeedEntry responseEntry = wrapper.GetFeedEntry(_requestContext.ResourceKey);
SyncFeed feed = new SyncFeed();
feed.FeedType = FeedType.ResourceEntry;
feed.Entries.Add(responseEntry);
request.Response.Serializer = new SyncFeedSerializer();
request.Response.Feed = feed;
request.Response.ContentType = Sage.Common.Syndication.MediaType.AtomEntry;
}
else if (sdTrResult.HttpStatus == System.Net.HttpStatusCode.OK)
{
SyncFeedEntry responseEntry = wrapper.GetFeedEntry(_requestContext.ResourceKey);
SyncFeed feed = new SyncFeed();
feed.FeedType = FeedType.ResourceEntry;
feed.Entries.Add(responseEntry);
request.Response.Serializer = new SyncFeedSerializer();
request.Response.Feed = feed;
request.Response.ContentType = Sage.Common.Syndication.MediaType.AtomEntry;
}
else
{
throw new RequestException(sdTrResult.HttpMessage);
}
}
/// <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 <SdataTransactionResult> transactinResults;
sdataContext = _parentPerformer._requestContext.SdataContext;
resource = _parentPerformer._requestContext.ResourceKind;
resourceKind = resource.ToString();
transactinResults = _parentPerformer._asyncStateObj.TransactionResults;
endpoint = _parentPerformer._requestContext.DatasetLink + resourceKind;;
trackingId = _parentPerformer._requestContext.TrackingId;
if (count == 0)
{
count = 10;
}
feed = new SyncFeed();
Token emptyToken = new Token();
IEntityWrapper wrapper = EntityWrapperFactory.Create(resource, _parentPerformer._requestContext);
for (int index = startIndex;
index < ((startIndex + count > transactinResults.Count) ? transactinResults.Count : startIndex + count);
index++)
{
SdataTransactionResult transactionResult = (SdataTransactionResult)transactinResults[index];
SyncFeedEntry entry = wrapper.GetFeedEntry(transactionResult);
if (entry != null)
{
feed.Entries.Add(entry);
}
else
{
entry = new SyncFeedEntry();
entry.Uuid = transactionResult.Uuid;
entry.HttpStatusCode = transactionResult.HttpStatus;
entry.HttpMessage = transactionResult.HttpMessage;;
entry.HttpMethod = transactionResult.HttpMethod;
entry.HttpLocation = transactionResult.Location;
entry.HttpETag = transactionResult.Etag;
feed.Entries.Add(entry);
}
}
// initialize the feed
string url = string.Format("{0}/$syncTarget('{1}')", endpoint, trackingId);
feed.Title = resourceKind;
feed.Id = url;
#region PAGING & OPENSEARCH
int totalResults = transactinResults.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
//if (startIndex + count < transactinResults.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);
}
/// <summary>
///
/// </summary>
public void Add(TEntity entity)
{
EntityUtil.CheckArgumentNull(entity, "entity");
Add(EntityWrapperFactory.WrapEntityUsingContext(entity, ObjectContext));
}
// Asynchronous called method
private void Execute(NorthwindConfig config, SyncFeedDigest syncDigestInfo)
{
#region Declaration
SdataContext sdataContext;
SupportedResourceKinds resource;
IAppBookmarkInfoStore appBookmarkInfoStore;
ICorrelatedResSyncInfoStore correlatedResSyncInfoStore;
ISyncSyncDigestInfoStore syncDigestStore;
ISyncTickProvider tickProvider;
string resourceKind;
string endpoint;
int nextTick = 0;
Token lastToken;
Token nextToken;
Identity[] changedIdentites;
IEntityWrapper wrapper;
#endregion
#region init
sdataContext = _parentPerformer._requestContext.SdataContext;
resource = _parentPerformer._requestContext.ResourceKind;
resourceKind = resource.ToString();
endpoint = _parentPerformer._requestContext.DatasetLink + resourceKind;
appBookmarkInfoStore = RequestReceiver.NorthwindAdapter.StoreLocator.GetAppBookmarkStore(sdataContext);
correlatedResSyncInfoStore = RequestReceiver.NorthwindAdapter.StoreLocator.GetCorrelatedResSyncStore(sdataContext);
syncDigestStore = RequestReceiver.NorthwindAdapter.StoreLocator.GetSyncDigestStore(sdataContext);
tickProvider = RequestReceiver.NorthwindAdapter.StoreLocator.GetTickProvider(sdataContext);
wrapper = EntityWrapperFactory.Create(resource, _parentPerformer._requestContext);
#endregion
#region get last token or create a new one
if (!appBookmarkInfoStore.Get <Token>(resourceKind, out lastToken))
{
lastToken = new Token();
lastToken.InitRequest = true;
}
#endregion
#region Get local identities of changed entries since last synchronisation
changedIdentites = wrapper.Entity.GetLastChanges(lastToken, config, out nextToken);
#endregion
if (resource == SupportedResourceKinds.phoneNumbers)
{
#region workaround for phones
for (int index = 0; index < changedIdentites.Length; index++)
{
string phoneid = changedIdentites[index].Id + Sage.Integration.Northwind.Application.API.Constants.PhoneIdPostfix;
string faxId = changedIdentites[index].Id + Sage.Integration.Northwind.Application.API.Constants.FaxIdPostfix;
// receive the feed entry for local identity
SyncFeedEntry phoneentry = wrapper.GetFeedEntry(phoneid);
SyncFeedEntry faxentry = wrapper.GetFeedEntry(faxId);
if (phoneentry == null && faxentry == null)
{
continue;
}
// receive the correlation for the local identity
if (phoneentry != null)
{
CorrelatedResSyncInfo[] correlatedResSyncInfos = correlatedResSyncInfoStore.GetByLocalId(resourceKind, new string[] { phoneid });
string etag = EtagServices.ComputeEtag(phoneentry.Payload, true); // new etag
if (correlatedResSyncInfos.Length == 0)
{
nextTick = tickProvider.CreateNextTick(resourceKind); // create next tick
ResSyncInfo resyncInfo = new ResSyncInfo(Guid.NewGuid(), endpoint, nextTick, etag, DateTime.Now);
CorrelatedResSyncInfo info = new CorrelatedResSyncInfo(phoneid, resyncInfo);
correlatedResSyncInfoStore.Put(resourceKind, info);
syncDigestStore.PersistNewer(resourceKind, info.ResSyncInfo);
}
else if (!correlatedResSyncInfos[0].ResSyncInfo.Etag.Equals(etag))
{
nextTick = tickProvider.CreateNextTick(resourceKind);
correlatedResSyncInfos[0].ResSyncInfo.Etag = etag;
correlatedResSyncInfos[0].ResSyncInfo.Tick = nextTick;
correlatedResSyncInfos[0].ResSyncInfo.Endpoint = endpoint;
correlatedResSyncInfos[0].ResSyncInfo.ModifiedStamp = DateTime.Now;
correlatedResSyncInfoStore.Put(resourceKind, correlatedResSyncInfos[0]);
syncDigestStore.PersistNewer(resourceKind, correlatedResSyncInfos[0].ResSyncInfo);
}
}
if (faxentry != null)
{
CorrelatedResSyncInfo[] correlatedResSyncInfos = correlatedResSyncInfoStore.GetByLocalId(resourceKind, new string[] { faxId });
string etag = EtagServices.ComputeEtag(faxentry.Payload, true); // new etag
if (correlatedResSyncInfos.Length == 0)
{
nextTick = tickProvider.CreateNextTick(resourceKind); // create next tick
ResSyncInfo resyncInfo = new ResSyncInfo(Guid.NewGuid(), endpoint, nextTick, etag, DateTime.Now);
CorrelatedResSyncInfo info = new CorrelatedResSyncInfo(faxId, resyncInfo);
correlatedResSyncInfoStore.Put(resourceKind, info);
syncDigestStore.PersistNewer(resourceKind, info.ResSyncInfo);
}
else if (!correlatedResSyncInfos[0].ResSyncInfo.Etag.Equals(etag))
{
nextTick = tickProvider.CreateNextTick(resourceKind);
correlatedResSyncInfos[0].ResSyncInfo.Etag = etag;
correlatedResSyncInfos[0].ResSyncInfo.Tick = nextTick;
correlatedResSyncInfos[0].ResSyncInfo.Endpoint = endpoint;
correlatedResSyncInfos[0].ResSyncInfo.ModifiedStamp = DateTime.Now;
correlatedResSyncInfoStore.Put(resourceKind, correlatedResSyncInfos[0]);
syncDigestStore.PersistNewer(resourceKind, correlatedResSyncInfos[0].ResSyncInfo);
}
}
}
#endregion
}
else
{
for (int index = 0; index < changedIdentites.Length; index++)
{
string id = changedIdentites[index].Id;
// receive the feed entry for local identity
SyncFeedEntry entry = wrapper.GetFeedEntry(id);
if (entry == null)
{
continue;
}
// receive the correlation for the local identity
CorrelatedResSyncInfo[] correlatedResSyncInfos = correlatedResSyncInfoStore.GetByLocalId(resourceKind, new string[] { id });
string etag = EtagServices.ComputeEtag(entry.Payload, true); // new etag
if (correlatedResSyncInfos.Length == 0)
{
nextTick = tickProvider.CreateNextTick(resourceKind); // create next tick
ResSyncInfo resyncInfo = new ResSyncInfo(Guid.NewGuid(), endpoint, nextTick, etag, DateTime.Now);
CorrelatedResSyncInfo info = new CorrelatedResSyncInfo(id, resyncInfo);
correlatedResSyncInfoStore.Put(resourceKind, info);
syncDigestStore.PersistNewer(resourceKind, info.ResSyncInfo);
}
else if (!correlatedResSyncInfos[0].ResSyncInfo.Etag.Equals(etag))
{
nextTick = tickProvider.CreateNextTick(resourceKind);
correlatedResSyncInfos[0].ResSyncInfo.Etag = etag;
correlatedResSyncInfos[0].ResSyncInfo.Tick = nextTick;
correlatedResSyncInfos[0].ResSyncInfo.Endpoint = endpoint;
correlatedResSyncInfos[0].ResSyncInfo.ModifiedStamp = DateTime.Now;
correlatedResSyncInfoStore.Put(resourceKind, correlatedResSyncInfos[0]);
syncDigestStore.PersistNewer(resourceKind, correlatedResSyncInfos[0].ResSyncInfo);
}
}
}
#region store next token
appBookmarkInfoStore.Put(resourceKind, nextToken);
#endregion
// set tracking phase
lock (_parentPerformer._asyncStateObj)
{
_parentPerformer._asyncStateObj.Tracking.Phase = TrackingPhase.GETCHANGESBYTICK;
}
// Receive syncDigestInfo
if (null != syncDigestInfo)
{
ICorrelatedResSyncInfoEnumerator enumerator;
List <string> endpoints = new List <string>();
foreach (SyncFeedDigestEntry digestEntry in syncDigestInfo.Entries)
{
endpoints.Add(digestEntry.Endpoint);
enumerator = correlatedResSyncInfoStore.GetSinceTick(resourceKind, digestEntry.Endpoint, digestEntry.Tick - 2);
while (enumerator.MoveNext())
{
// No lock needed, as we expect that CorrelatedResSyncInfos list is
// only acceeded anywhere else when Tracking phase is 'finish'.
//lock(_parentPerformer._asyncStateObj)
//{
_parentPerformer._asyncStateObj.CorrelatedResSyncInfos.Add(enumerator.Current);
//}
}
}
SyncDigestInfo sourceSyncDigestInfo = syncDigestStore.Get(resourceKind);
foreach (SyncDigestEntryInfo digestEntry in sourceSyncDigestInfo)
{
if (endpoints.Contains(digestEntry.Endpoint))
{
continue;
}
endpoints.Add(digestEntry.Endpoint);
enumerator = correlatedResSyncInfoStore.GetSinceTick(resourceKind, digestEntry.Endpoint, -1);
while (enumerator.MoveNext())
{
// No lock needed, as we expect that CorrelatedResSyncInfos list is
// only acceeded anywhere else when Tracking phase is 'finish'.
//lock(_parentPerformer._asyncStateObj)
//{
_parentPerformer._asyncStateObj.CorrelatedResSyncInfos.Add(enumerator.Current);
//}
}
}
if (!endpoints.Contains(endpoint))
{
enumerator = correlatedResSyncInfoStore.GetSinceTick(resourceKind, endpoint, -1);
while (enumerator.MoveNext())
{
// No lock needed, as we expect that CorrelatedResSyncInfos list is
// only acceeded anywhere else when Tracking phase is 'finish'.
//lock(_parentPerformer._asyncStateObj)
//{
_parentPerformer._asyncStateObj.CorrelatedResSyncInfos.Add(enumerator.Current);
//}
}
}
}
// Set tracking phase
lock (_parentPerformer._asyncStateObj.Tracking)
{
_parentPerformer._asyncStateObj.Tracking.Phase = TrackingPhase.FINISH;
}
}
/// <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);
}
