|
public ConvertFrom ( ITypeDescriptorContext context, |
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| context | ITypeDescriptorContext | |
| culture | ||
| value | object | |
| return | object | |
public void DoWork(IRequest request)
{
// If an asyncState object already exists, an exception is thrown as the performer only accepts
// one call after each other. The Request receiver has to manage a queued execution.
// Before calling the performers execution implementation method a new AsyncState object is created
// and set to an initial tracking state.
lock (_asyncStateObj)
{
if (null != _asyncStateObj.Tracking)
throw new InvalidOperationException("The performer cannot be executed because it is already running.");
SyncTracking tracking = new SyncTracking();
tracking.ElapsedSeconds = 1;
tracking.Phase = TrackingPhase.INIT;
tracking.PhaseDetail = "Tracking Id was: " + _requestContext.TrackingId.ToString();
tracking.PollingMillis = 100;
tracking.RemainingSeconds = 100;
_asyncStateObj.Tracking = tracking;
}
// *** Initialization for the async execution ***
// - Read Feed from request stream.
// - Read trackingId from request URL
// convert tracking ID from request to type Guid
string strTrackingId = request.Uri.TrackingID;
if (String.IsNullOrEmpty(strTrackingId))
throw new RequestException("TrackingId is missing");
GuidConverter converter = new GuidConverter();
this.TrackingId = (Guid)converter.ConvertFrom(strTrackingId);
//read feed
SyncFeed feed = new SyncFeed();
XmlReader reader = XmlReader.Create(request.Stream);
feed.ReadXml(reader, ResourceKindHelpers.GetPayloadType(_requestContext.ResourceKind));
// *** Do work asynchronously ***
_asyncPerformer = new InternalAsyncPerformer(this);
_asyncPerformer.DoWork(_requestContext.Config, feed);
// *** set the tracking to the request response ***
this.GetTrackingState(request);
}
public RequestContext(SDataUri sdataUri)
{
this.SdataUri = sdataUri;
// config
NorthwindConfig newConfig = new NorthwindConfig(sdataUri.CompanyDataset);
newConfig.CurrencyCode = "EUR";
newConfig.CrmUser = "******";
newConfig.Path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Northwind");
this.Config = newConfig;
// initialize requestType
this.RequestType = RequestType.None;
// hasTrackingId
this.HasTrackingId = false;
// baseLink
string newBaseLink = string.Empty;
if (String.IsNullOrEmpty(sdataUri.Scheme))
newBaseLink += "http://";
else
newBaseLink += sdataUri.Scheme + "://";
if (String.IsNullOrEmpty(sdataUri.Host))
newBaseLink += "localhost";
else
newBaseLink += sdataUri.Host;
if (sdataUri.Port > 0)
newBaseLink += ":" + sdataUri.Port.ToString();
if (String.IsNullOrEmpty(sdataUri.Server))
newBaseLink += "/sdata/";
else
newBaseLink += "/" + sdataUri.Server + "/";
this.BaseLink = newBaseLink;
// application
this.Application = (sdataUri.PathSegments.Length > 0) ? sdataUri.PathSegments[0].Text : "";
// applicationLink
this.ApplicationLink = this.BaseLink + this.Application + "/";
if (sdataUri.PathSegments.Length == 1)
{
this.RequestType = RequestType.Contract; // -> Type: contract
return;
}
// contract
string newContract = sdataUri.PathSegments[1].Text;
if (newContract == "*")
{
this.RequestType = RequestType.Contract; // -> Type: contract
this.Contract = string.Empty;
return;
}
this.Contract = newContract;
// contractLink
this.ContractLink = this.ApplicationLink + this.Contract + "/";
if (sdataUri.PathSegments.Length == 2)
{
this.RequestType = RequestType.Dataset; // -> Type: dataset
return;
}
// dataset
string newDataset = sdataUri.PathSegments[2].Text;
if (newDataset == "*")
{
this.RequestType = RequestType.Dataset; // -> Type: dataset
this.Dataset = string.Empty;
return;
}
this.Dataset = newDataset;
// datasetLink
this.DatasetLink = this.ContractLink + this.Dataset + "/";
// sdataContext
this.SdataContext = new SdataContext(this.Application, this.Dataset, this.Contract, this.DatasetLink);
if (this.SdataUri.PathSegments.Length == 3)
{
if (!string.IsNullOrEmpty(this.SdataUri.ServiceMethod))
{
this.RequestType = RequestType.Service; // -> Type: Service
return;
}
this.RequestType = RequestType.ResourceCollection; // -> Type: ResourceCollection
return;
}
string temp;
temp = this.SdataUri.PathSegments[3].Text;
if (temp == "*")
{
this.RequestType = RequestType.ResourceCollection; // -> Type: ResourceCollection
return;
}
if (temp.Equals(Constants.schema, StringComparison.InvariantCultureIgnoreCase))
{
// check whether it is an import schema
if (this.SdataUri.PathSegments.Length == 4)
{
this.RequestType = RequestType.ResourceCollectionSchema; // -> Type: ResourceCollectionSchema
return;
}
else if (this.SdataUri.PathSegments.Length == 6 && this.SdataUri.PathSegments[4].Text.Equals("import", StringComparison.InvariantCultureIgnoreCase) && (!string.IsNullOrEmpty(this.SdataUri.PathSegments[5].Text)))
{
this.ImportSchemaName = this.SdataUri.PathSegments[5].Text;
this.RequestType = RequestType.ImportSchema; // -> Type: ImportSchema
return;
}
}
if (temp.Equals(Constants.service, StringComparison.InvariantCultureIgnoreCase))
{
if (this.SdataUri.PathSegments.Length >= 6)
{
this.SdataUri.ServiceMethod = this.SdataUri.PathSegments[4].Text;
if (this.SdataUri.PathSegments[5].Text.Equals(Constants.schema, StringComparison.InvariantCultureIgnoreCase))
{
this.RequestType = RequestType.ServiceSchema;
return;
}
}
else
{
throw new RequestException(string.Format("Url {0} cannot be parsed.", this.SdataUri.ToString()));
}
}
try
{
// resourceKind
this.ResourceKind = (SupportedResourceKinds)Enum.Parse(typeof(SupportedResourceKinds), temp, true);
if (sdataUri.PathSegments.Length > 4 && sdataUri.PathSegments[4].Text.Equals(Constants.linked, StringComparison.InvariantCultureIgnoreCase))
{
this.RequestType = RequestType.Linked; // -> Type: Linked
// resourceKey
if (sdataUri.PathSegments[4].HasPredicate)
{
if (sdataUri.PathSegments[4].PredicateExpression is StringLiteralExpression)
{
this.ResourceKey = ((StringLiteralExpression)sdataUri.PathSegments[4].PredicateExpression).Value.ToString();
return;
}
else
{
this.RequestType = RequestType.None; // -> Type: None
this.ResourceKind = SupportedResourceKinds.None;
this.ErrorMessage = "please specify the primary Key inside the predicate as string";
return;
}
}
}
else if (!string.IsNullOrEmpty(this.SdataUri.ServiceMethod))
{
if (sdataUri.PathSegments.Length >= 7 && sdataUri.PathSegments[6].Text.Equals(Constants.schema, StringComparison.InvariantCultureIgnoreCase))
this.RequestType = RequestType.ServiceSchema; // currently we do not enter here, but we don't know if SIF will be changed to set the service name
else
this.RequestType = RequestType.Service; // -> Type: Service
return;
}
else if (sdataUri.PathSegments.Length >= 7 &&
sdataUri.PathSegments[4].Text.Equals(Constants.service, StringComparison.InvariantCultureIgnoreCase) &&
sdataUri.PathSegments[6].Text.Equals(Constants.schema, StringComparison.InvariantCultureIgnoreCase))
{
this.SdataUri.ServiceMethod = sdataUri.PathSegments[5].Text;
this.RequestType = RequestType.ServiceSchema;
return;
}
else
{
this.RequestType = RequestType.Resource; // -> Type. Resource
// resourceKey
if (sdataUri.PathSegments[3].HasPredicate)
{
if (sdataUri.PathSegments[3].PredicateExpression is StringLiteralExpression)
{
this.ResourceKey = ((StringLiteralExpression)sdataUri.PathSegments[3].PredicateExpression).Value.ToString();
return;
}
else
{
this.RequestType = RequestType.None; // -> Type: None
this.ResourceKind = SupportedResourceKinds.None;
this.ErrorMessage = "please specify the primary Key inside the predicate as string";
return;
}
}
}
}
catch (Exception e)
{
this.RequestType = RequestType.None;
this.ResourceKind = SupportedResourceKinds.None;
this.ErrorMessage = e.Message;
return;
}
if (this.SdataUri.PathSegments.Length == 4)
return;
temp = sdataUri.PathSegments[4].Text;
if (temp.Equals(Constants.schema, StringComparison.InvariantCultureIgnoreCase))
{
this.RequestType = RequestType.ResourceSchema; // -> Type: ResourceSchema
return;
}
if (temp.Equals(Constants.template, StringComparison.InvariantCultureIgnoreCase))
{
this.RequestType = RequestType.Template; // -> Type: template
return;
}
if (temp.Equals(Constants.syncDigest, StringComparison.InvariantCultureIgnoreCase))
{
this.RequestType = RequestType.SyncDigest; // -> Type: syncDigest
return;
}
if (temp.Equals(Constants.syncResults, StringComparison.InvariantCultureIgnoreCase))
{
this.RequestType = RequestType.SyncResults; // -> Type: SyncResults
return;
}
if ((temp.Equals(Constants.syncSource, StringComparison.InvariantCultureIgnoreCase))
|| (temp.Equals(Constants.syncTarget, StringComparison.InvariantCultureIgnoreCase)))
{
if (temp.Equals(Constants.syncSource, StringComparison.InvariantCultureIgnoreCase))
this.RequestType = RequestType.SyncSource; // -> Type: syncSource
if (temp.Equals(Constants.syncTarget, StringComparison.InvariantCultureIgnoreCase))
this.RequestType = RequestType.SyncTarget; // -> Type: syncTarget
if (!string.IsNullOrEmpty(sdataUri.TrackingID))
{
try
{
GuidConverter converter = new GuidConverter();
this.TrackingId = (Guid)converter.ConvertFrom(sdataUri.TrackingID);
this.HasTrackingId = true;
}
catch (Exception)
{
}
}
else if (this.SdataUri.PathSegments[4].HasPredicate)
{
try
{
GuidConverter converter = new GuidConverter();
this.TrackingId = (Guid)converter.ConvertFrom(((StringLiteralExpression)this.SdataUri.PathSegments[4].PredicateExpression).Value);
this.HasTrackingId = true;
}
catch (Exception)
{
}
}
return;
}
}
public void DoWork(IRequest request)
{
// If an asyncState object already exists, an exception is thrown as the performer only accepts
// one call after each other. The Request receiver has to manage a queued execution.
// Before calling the performers execution implementation method a new AsyncState object is created
// and set to an initial tracking state.
lock (_asyncStateObj)
{
if (null != _asyncStateObj.Tracking)
throw new InvalidOperationException("The performer cannot be executed because it is already running.");
SyncTracking tracking = new SyncTracking();
tracking.ElapsedSeconds = 1;
tracking.Phase = TrackingPhase.INIT;
tracking.PhaseDetail = "Tracking Id was: " + _requestContext.TrackingId.ToString();
tracking.PollingMillis = 100;
tracking.RemainingSeconds = 100;
_asyncStateObj.Tracking = tracking;
}
// *** Initialization for the async execution ***
// - Read SyncDigest from request stream.
// - Read trackingId from request URL
//// Load input stream (throws RequestException if it fails.)
//XmlDocument xmlInputDoc;
//InputStreamHelpers.Get(request, out xmlInputDoc);
//// load syncDigest info from input stream of the request
//SyncDigestInfo syncDigestInfo = SyncDigestInfoHelpers.Load(xmlInputDoc);
SyncFeedEntry entry = new SyncFeedEntry();
XmlReader reader = XmlReader.Create(request.Stream);
reader.MoveToContent();
entry.ReadXml(reader, typeof(SyncDigestPayload));
if (entry.Payload == null)
{
throw new RequestException("Invalid Content");
}
SyncFeedDigest syncDigestInfo = ((SyncDigestPayload)entry.Payload).Digest;
// convert tracking ID from request to type Guid
string strTrackingId = request.Uri.TrackingID;
if (String.IsNullOrEmpty(strTrackingId))
throw new RequestException("TrackingId is missing");
GuidConverter converter = new GuidConverter();
this.TrackingId = (Guid)converter.ConvertFrom(strTrackingId);
// *** Do work asynchronously ***
_asyncPerformer = new InternalAsyncPerformer(this);
_asyncPerformer.DoWork(_requestContext.Config, syncDigestInfo);
// *** set the tracking to the request response ***
this.GetTrackingState(request);
}
