public void Put(string resourceKind, SyncDigestInfo info)
{
if (null == resourceKind)
{
throw new ArgumentNullException("resourceKind");
}
if (resourceKind == String.Empty)
{
throw new ArgumentException("Parameter value is empty.", "resourceKind");
}
if (null == info)
{
throw new ArgumentNullException("info");
}
// TODO: Validate entry property values
// We set the priority on 'update'.
lock (lockObj)
{
try
{
_provider.Update(resourceKind, info);
}
catch (StoreException)
{
_provider.Add(resourceKind, info);
}
}
}
public SyncDigestInfo Get(int resourceKindId, IJetTransaction jetTransaction)
{
SyncDigestInfo resultInfo = new SyncDigestInfo();
OleDbCommand oleDbCommand = jetTransaction.CreateOleCommand();
string sqlQuery = string.Empty;
sqlQuery = "SELECT {0}.Tick, {0}.ConflictPriority, {0}.Stamp, {1}.EndPoint FROM {1} INNER JOIN {0} ON {1}.ID={0}.FKEndPointId WHERE ((({0}.FKResourceKindId)=@ResourceKindId));";
oleDbCommand.CommandText = string.Format(sqlQuery, _syncDigestTable.TableName, _syncDigestTable.EndPointTable.TableName);
oleDbCommand.Parameters.AddWithValue("@ResourceKindId", resourceKindId);
using (OleDbDataReader reader = oleDbCommand.ExecuteReader(CommandBehavior.Default))
{
while (reader.Read())
{
string EndPoint;
int tick;
int conflictPriority;
DateTime stamp;
EndPoint = Convert.ToString(reader["EndPoint"]);
tick = Convert.ToInt32(reader["tick"]);
conflictPriority = Convert.ToInt32(reader["ConflictPriority"]);
stamp = Convert.ToDateTime(reader["Stamp"]);
resultInfo.Add(new SyncDigestEntryInfo(EndPoint, tick, conflictPriority, stamp));
}
}
return(resultInfo);
}
public static string ToXml(SyncDigestInfo info, string endpoint)
{
StringBuilder sbDigest = new StringBuilder();
sbDigest.Append(@"<?xml version=""1.0"" encoding=""utf-8"" ?>");
sbDigest.Append(string.Format(@"<digest xmlns=""{0}"" mark=""current"">", Namespaces.syncNamespace));
sbDigest.Append(@"<origin>");
sbDigest.Append(endpoint);
sbDigest.Append(@"</origin>");
foreach (SyncDigestEntryInfo digestEntry in info)
{
sbDigest.Append(@"<digestEntry>");
sbDigest.Append(@"<endpoint>");
sbDigest.Append(digestEntry.Endpoint);
sbDigest.Append(@"</endpoint>");
sbDigest.Append(@"<tick>");
sbDigest.Append(digestEntry.Tick.ToString());
sbDigest.Append(@"</tick>");
sbDigest.Append(@"<conflictPriority>");
sbDigest.Append(digestEntry.ConflictPriority);
sbDigest.Append(@"</conflictPriority>");
sbDigest.Append(@"</digestEntry>");
}
sbDigest.Append(@"</digest>");
return sbDigest.ToString();
}
public void Put(string resourceKind, SyncDigestInfo info)
{
if (null == resourceKind)
throw new ArgumentNullException("resourceKind");
if (resourceKind == String.Empty)
throw new ArgumentException("Parameter value is empty.", "resourceKind");
if (null == info)
throw new ArgumentNullException("info");
// TODO: Validate entry property values
// We set the priority on 'update'.
lock (lockObj)
{
try
{
_provider.Update(resourceKind, info);
}
catch (StoreException)
{
_provider.Add(resourceKind, info);
}
}
}
public static string ToXml(SyncDigestInfo info, string endpoint)
{
StringBuilder sbDigest = new StringBuilder();
sbDigest.Append(@"<?xml version=""1.0"" encoding=""utf-8"" ?>");
sbDigest.Append(string.Format(@"<digest xmlns=""{0}"" mark=""current"">", Namespaces.syncNamespace));
sbDigest.Append(@"<origin>");
sbDigest.Append(endpoint);
sbDigest.Append(@"</origin>");
foreach (SyncDigestEntryInfo digestEntry in info)
{
sbDigest.Append(@"<digestEntry>");
sbDigest.Append(@"<endpoint>");
sbDigest.Append(digestEntry.Endpoint);
sbDigest.Append(@"</endpoint>");
sbDigest.Append(@"<tick>");
sbDigest.Append(digestEntry.Tick.ToString());
sbDigest.Append(@"</tick>");
sbDigest.Append(@"<conflictPriority>");
sbDigest.Append(digestEntry.ConflictPriority);
sbDigest.Append(@"</conflictPriority>");
sbDigest.Append(@"</digestEntry>");
}
sbDigest.Append(@"</digest>");
return(sbDigest.ToString());
}
public static int GetConflictPriority(SyncDigestInfo digest, string EndPoint)
{
foreach (SyncDigestEntryInfo entry in digest)
if ((entry.EndPoint != null) && (entry.EndPoint.Equals(EndPoint, StringComparison.InvariantCultureIgnoreCase)))
return entry.ConflictPriority;
return 10000;
}
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;
}
public static int GetConflictPriority(SyncDigestInfo digest, string endpoint)
{
foreach (SyncDigestEntryInfo entry in digest)
{
if ((entry.Endpoint != null) && (entry.Endpoint.Equals(endpoint, StringComparison.InvariantCultureIgnoreCase)))
{
return(entry.ConflictPriority);
}
}
return(10000);
}
public static SyncState GetSyncState(SyncDigestInfo digest, string endpoint)
{
foreach (SyncDigestEntryInfo entry in digest)
{
if ((entry.Endpoint != null) && (entry.Endpoint.Equals(endpoint, StringComparison.InvariantCultureIgnoreCase)))
{
SyncState result = new SyncState();
result.Endpoint = entry.Endpoint;
//result.Stamp = entry.Stamp;
result.Tick = entry.Tick;
return(result);
}
}
return(null);
}
public SyncDigestInfo Get(string resourceKind)
{
SyncDigestInfo resultInfo = null;
ISyncDigestTableAdapter syncDigestTableAdapter = StoreEnvironment.Resolve <ISyncDigestTableAdapter>(_context);
IResourceKindTableAdapter resourceKindTableAdapter = StoreEnvironment.Resolve <IResourceKindTableAdapter>(_context);
using (IJetTransaction jetTransaction = _jetConnectionProvider.GetTransaction(false))
{
ResourceKindInfo resourceKindInfo = resourceKindTableAdapter.GetOrCreate(resourceKind, jetTransaction);
resultInfo = syncDigestTableAdapter.Get(resourceKindInfo.Id, jetTransaction);
jetTransaction.Commit();
}
return(resultInfo);
}
public void Add(string resourceKind, SyncDigestInfo info)
{
ISyncDigestTableAdapter syncDigestTableAdapter = StoreEnvironment.Resolve<ISyncDigestTableAdapter>(_context);
IResourceKindTableAdapter resourceKindTableAdapter = StoreEnvironment.Resolve<IResourceKindTableAdapter>(_context);
using (IJetTransaction jetTransaction = _jetConnectionProvider.GetTransaction(false))
{
ResourceKindInfo resourceKindInfo = resourceKindTableAdapter.GetOrCreate(resourceKind, jetTransaction);
try
{
syncDigestTableAdapter.Insert(resourceKindInfo.Id, info.ToArray(), jetTransaction);
}
catch (OleDbException exception)
{
if (exception.Errors.Count == 1 && exception.Errors[0].SQLState == "3022")
throw new StoreException(string.Format("An error occured while adding a new syncDigest. A syncDigest already exists for the resourceKind '{0}'.", resourceKind), exception);
throw;
}
jetTransaction.Commit();
}
}
public void Add(string resourceKind, SyncDigestInfo info)
{
ISyncDigestTableAdapter syncDigestTableAdapter = StoreEnvironment.Resolve <ISyncDigestTableAdapter>(_context);
IResourceKindTableAdapter resourceKindTableAdapter = StoreEnvironment.Resolve <IResourceKindTableAdapter>(_context);
using (IJetTransaction jetTransaction = _jetConnectionProvider.GetTransaction(false))
{
ResourceKindInfo resourceKindInfo = resourceKindTableAdapter.GetOrCreate(resourceKind, jetTransaction);
try
{
syncDigestTableAdapter.Insert(resourceKindInfo.Id, info.ToArray(), jetTransaction);
}
catch (OleDbException exception)
{
if (exception.Errors.Count == 1 && exception.Errors[0].SQLState == "3022")
{
throw new StoreException(string.Format("An error occured while adding a new syncDigest. A syncDigest already exists for the resourceKind '{0}'.", resourceKind), exception);
}
throw;
}
jetTransaction.Commit();
}
}
// 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;
}
}
// Asynchronous called method
private void Execute(NorthwindConfig config, Digest targetDigest)
{
#region Declaration
SdataContext sdataContext;
SupportedResourceKinds resource;
IAppBookmarkInfoStore appBookmarkInfoStore;
ICorrelatedResSyncInfoStore correlatedResSyncInfoStore;
ISyncSyncDigestInfoStore syncDigestStore;
ISynctickProvider tickProvider;
string resourceKind;
string EndPoint;
int nexttick = 1;
Token lastToken;
Token nextToken;
Identity[] changedIdentites;
IFeedEntryEntityWrapper wrapper;
#endregion
#region init
sdataContext = _parentPerformer._requestContext.SdataContext;
resource = _parentPerformer._requestContext.ResourceKind;
resourceKind = resource.ToString();
EndPoint = _parentPerformer._requestContext.DatasetLink + resourceKind;
appBookmarkInfoStore = NorthwindAdapter.StoreLocator.GetAppBookmarkStore(sdataContext);
correlatedResSyncInfoStore = NorthwindAdapter.StoreLocator.GetCorrelatedResSyncStore(sdataContext);
syncDigestStore = NorthwindAdapter.StoreLocator.GetSyncDigestStore(sdataContext);
tickProvider = NorthwindAdapter.StoreLocator.GettickProvider(sdataContext);
wrapper = FeedEntryWrapperFactory.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 resource payloads for the phone id and for the fax id
// so that we can calculate their current etags.
FeedEntry phoneResourcePayloadContainer = wrapper.GetFeedEntry(phoneid);
FeedEntry faxResourcePayloadConatainer = wrapper.GetFeedEntry(faxId);
string etag;
CorrelatedResSyncInfo[] correlatedResSyncInfos;
#region Phone
if (phoneResourcePayloadContainer != null)
{
// calculate etag of the resource
etag = EtagServices.ComputeEtag(phoneResourcePayloadContainer, true); // new etag
// retrieve correlations for the current identity from synch storage
correlatedResSyncInfos = correlatedResSyncInfoStore.GetByLocalId(resourceKind, new string[] { phoneid });
// if no correlation exists AND resource has been deleted:
// -> continue with next id
// else if no correlation exists:
// -> get next tick, create new correlation and add correlation to synch store
// otherwise and if the etag stored in synch store is different than etag previously calculated:
// -> get next tick, modify existing correlation and update it in synch store.
if (correlatedResSyncInfos.Length == 0 && phoneResourcePayloadContainer.IsDeleted)
{
continue;
}
else 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);
}
}
#endregion
#region Fax
if (faxResourcePayloadConatainer != null)
{
// calculate etag of the resource
etag = EtagServices.ComputeEtag(faxResourcePayloadConatainer, true); // new etag
// retrieve correlations for the current identity from synch storage
correlatedResSyncInfos = correlatedResSyncInfoStore.GetByLocalId(resourceKind, new string[] { faxId });
// if no correlation exists AND resource has been deleted:
// -> continue with next id
// else if no correlation exists:
// -> get next tick, create new correlation and add correlation to synch store
// otherwise and if the etag stored in synch store is different than etag previously calculated:
// -> get next tick, modify existing correlation and update it in synch store.
if (correlatedResSyncInfos.Length == 0 && faxResourcePayloadConatainer.IsDeleted)
{
continue;
}
else 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
}
#endregion
}
else
{
string id;
FeedEntry resourcePayloadContainer;
CorrelatedResSyncInfo[] correlatedResSyncInfos;
string etag;
// iterate through the collection of ids of all changed resources.
for (int index = 0; index < changedIdentites.Length; index++)
{
// current id from iterated collection
id = changedIdentites[index].Id;
// get resource payload container for the current identity so that we can calculated the
// etag.
// continue with next identity if no resource was found.
resourcePayloadContainer = wrapper.GetFeedEntry(id);
// calculate etag of the current resource payload
etag = EtagServices.ComputeEtag(resourcePayloadContainer, true);
// retrieve correlations for the current identity from synch storage
correlatedResSyncInfos = correlatedResSyncInfoStore.GetByLocalId(resourceKind, new string[] { id });
// if no correlation exists AND resource has been deleted:
// -> continue with next id
// else if no correlation exists:
// -> get next tick, create new correlation and add correlation to synch store
// otherwise and if the etag stored in synch store is different than etag previously calculated:
// -> get next tick, modify existing correlation and update it in synch store.
if (resourcePayloadContainer == null || (correlatedResSyncInfos.Length == 0 && resourcePayloadContainer.IsDeleted))
{
continue;
}
else 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;
}
if (null != targetDigest)
{
ICorrelatedResSyncInfoEnumerator enumerator;
List <string> EndPoints = new List <string>();
#warning remove this workaround
if (targetDigest.Entries != null)
{
foreach (DigestEntry targetDigestEntry in targetDigest.Entries)
{
EndPoints.Add(targetDigestEntry.EndPoint);
enumerator = correlatedResSyncInfoStore.GetSincetick(resourceKind, targetDigestEntry.EndPoint, ((int)targetDigestEntry.Tick) - 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);
//}
}
}
}
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 to FINISH
lock (_parentPerformer._asyncStateObj.Tracking)
{
_parentPerformer._asyncStateObj.Tracking.Phase = TrackingPhase.FINISH;
}
}
public SyncDigestInfo Get(int resourceKindId, IJetTransaction jetTransaction)
{
SyncDigestInfo resultInfo = new SyncDigestInfo();
OleDbCommand oleDbCommand = jetTransaction.CreateOleCommand();
string sqlQuery = string.Empty;
sqlQuery = "SELECT {0}.Tick, {0}.ConflictPriority, {0}.Stamp, {1}.EndPoint FROM {1} INNER JOIN {0} ON {1}.ID={0}.FKEndPointId WHERE ((({0}.FKResourceKindId)=@ResourceKindId));";
oleDbCommand.CommandText = string.Format(sqlQuery, _syncDigestTable.TableName, _syncDigestTable.EndPointTable.TableName);
oleDbCommand.Parameters.AddWithValue("@ResourceKindId", resourceKindId);
using (OleDbDataReader reader = oleDbCommand.ExecuteReader(CommandBehavior.Default))
{
while (reader.Read())
{
string EndPoint;
int tick;
int conflictPriority;
DateTime stamp;
EndPoint = Convert.ToString(reader["EndPoint"]);
tick = Convert.ToInt32(reader["tick"]);
conflictPriority = Convert.ToInt32(reader["ConflictPriority"]);
stamp = Convert.ToDateTime(reader["Stamp"]);
resultInfo.Add(new SyncDigestEntryInfo(EndPoint, tick, conflictPriority, stamp));
}
}
return resultInfo;
}
public static SyncState GetSyncState(SyncDigestInfo digest, string EndPoint)
{
foreach (SyncDigestEntryInfo entry in digest)
{
if ((entry.EndPoint != null) && (entry.EndPoint.Equals(EndPoint, StringComparison.InvariantCultureIgnoreCase)))
{
SyncState result = new SyncState();
result.EndPoint = entry.EndPoint;
//result.Stamp = entry.Stamp;
result.Tick = (entry.Tick>0)?entry.Tick:1;
return result;
}
}
return null;
}
/// <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);
}
/// <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 Feed <FeedEntry> GetFeed(NorthwindConfig config, PageInfo normalizedPageInfo)
{
Feed <FeedEntry> syncSourceFeed;
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);
ISyncSyncDigestInfoStore syncDigestStore = NorthwindAdapter.StoreLocator.GetSyncDigestStore(sdataContext);
SyncDigestInfo syncDigestInfo = syncDigestStore.Get(resourceKind);
// Create a new Feed instance
syncSourceFeed = new Feed <FeedEntry>();//FeedComponentFactory.Create<ISyncSourceFeed>();
syncSourceFeed.Author = new FeedAuthor();
syncSourceFeed.Author.Name = "Northwind Adapter";
syncSourceFeed.Category = new FeedCategory("http://schemas.sage.com/sdata/categories", "collection", "Resource Collection");
#region Digest
syncSourceFeed.Digest = new Digest();
syncSourceFeed.Digest.Entries = (syncDigestInfo == null) ? new DigestEntry[0] : new DigestEntry[syncDigestInfo.Count];
// set digest origin
syncSourceFeed.Digest.Origin = _parentPerformer._requestContext.OriginEndPoint;
if (syncDigestInfo != null)
{
// convert and set digest entries from synch store object to feed object
for (int i = 0; i < syncDigestInfo.Count; i++)
{
syncSourceFeed.Digest.Entries[i] = new DigestEntry();
syncSourceFeed.Digest.Entries[i].ConflictPriority = syncDigestInfo[i].ConflictPriority;
syncSourceFeed.Digest.Entries[i].EndPoint = syncDigestInfo[i].EndPoint;
syncSourceFeed.Digest.Entries[i].Tick = (int)syncDigestInfo[i].Tick;
syncSourceFeed.Digest.Entries[i].Stamp = DateTime.Now;
}
}
#endregion
#region Entries
// retrieve the data connection wrapper
IFeedEntryEntityWrapper wrapper = FeedEntryWrapperFactory.Create(resource, _parentPerformer._requestContext);
IEnumerator <CorrelatedResSyncInfo> correlationEnumerator = PagingHelpers.GetPagedEnumerator <CorrelatedResSyncInfo>(normalizedPageInfo, correlatedResSyncInfos.ToArray());
while (correlationEnumerator.MoveNext())
{
syncSourceFeed.Entries.Add(this.BuildFeedEntry(correlationEnumerator.Current, wrapper));
}
#endregion
// initialize the feed
string feedUrl = string.Format("{0}/$syncSource('{1}')", EndPoint, trackingId);
string feedUrlWithoutQuery = (new Uri(feedUrl)).GetLeftPart(UriPartial.Path); // the url without query
// set id tag
syncSourceFeed.Id = feedUrl;
// set title tag
syncSourceFeed.Title = string.Format("{0} synchronization source feed {1}", resourceKind.ToString(), trackingId);
// set update
// syncSourceFeed.Updated = DateTime.Now;
// set syncMode
syncSourceFeed.SyncMode = SyncMode.catchUp;// syncModeenum.catchUp;
// add links (general)
syncSourceFeed.Links.AddRange(LinkFactory.CreateFeedLinks(_parentPerformer._requestContext, feedUrl));
#region PAGING & OPENSEARCH
// add links (paging)
syncSourceFeed.Links.AddRange(LinkFactory.CreatePagingLinks(normalizedPageInfo, correlatedResSyncInfos.Count, feedUrlWithoutQuery));
/* OPENSEARCH */
syncSourceFeed.ItemsPerPage = normalizedPageInfo.Count;
syncSourceFeed.StartIndex = normalizedPageInfo.StartIndex;
syncSourceFeed.TotalResults = correlatedResSyncInfos.Count;
#endregion
return(syncSourceFeed);
}
