public IEnumerable LoadPropertyPage <TEntity>(object entity, string propertyName, DataServiceQueryContinuation <TEntity> continuation)
{
QueryOperationResponse qoLoadPropResponse = null;
SocketExceptionHandler.Execute(() => qoLoadPropResponse = this._DataServiceContext.LoadProperty(entity, propertyName, continuation));
return(new QueryOperationResponseWrapper(qoLoadPropResponse));
}
public override KeyExpressions GetAllExistingKeysOfType(ResourceContainer resourceContainer, ResourceType resourceType)
{
if (!DataGenerator.Done)
{
return(DataGenerator.GetAllGeneratedKeys(resourceContainer, resourceType));
}
bool rightsChanged = false;
EntitySetRights oldRights = this.DataService.ConfigSettings.GetEntitySetAccessRule(resourceContainer.Name);
if ((EntitySetRights.ReadMultiple & oldRights) == 0)
{
rightsChanged = true;
this.DataService.ConfigSettings.SetEntitySetAccessRule(resourceContainer.Name, EntitySetRights.All);
}
KeyExpressions keys = SocketExceptionHandler.Execute <KeyExpressions>(
() => GetAllExistingKeysBase(resourceContainer));
if (rightsChanged)
{
this.DataService.ConfigSettings.SetEntitySetAccessRule(resourceContainer.Name, oldRights);
}
if (resourceType == null)
{
return(keys);
}
return(new KeyExpressions(keys.Where(k => k.ResourceType.Equals(resourceType))));
}
public override KeyedResourceInstance GetSingleResourceByKey(KeyExpression keyExpression)
{
if (keyExpression.Properties.OfType <ResourceProperty>().Where(rp => rp.Type.ClrType.Equals(typeof(DateTime))).Count() > 0)
{
UriQueryBuilder uriQueryBuilder = new UriQueryBuilder(this, this.ServiceUri);
_workaroundDateTimeQuery = uriQueryBuilder.Build(Query.From(
Exp.Variable(keyExpression.ResourceContainer))
.Where(keyExpression)
.Select());
}
KeyedResourceInstance o = null;
try
{
o = SocketExceptionHandler.Execute <KeyedResourceInstance>(
() => GetSingleResourceByKeyBase(keyExpression));
}
catch (Microsoft.OData.Client.DataServiceQueryException exc)
{
if (exc.Response.StatusCode != 404)
{
throw exc;
}
// if DSV is not present, its not an Astoria-level error
if (!exc.Response.Headers.ContainsKey("OData-Version"))
{
throw exc;
}
}
return(o);
}
public IEnumerable ClientExecuteWrapper <T>(string query, ResourceContainer container)
{
// we need to wrap the invoked call to execute because
// it can throw a web exception if we run out of sockets
DataServiceContext ctx;
Microsoft.OData.Client.ODataProtocolVersion?maxProtocolVersion = null;
// do this agressively, as we weren't successful at predicting when we actually needed it
maxProtocolVersion = Microsoft.OData.Client.ODataProtocolVersion.V4;
if (maxProtocolVersion.HasValue)
{
ctx = new DataServiceContext(new Uri(this.ServiceUri), maxProtocolVersion.Value);
}
else
{
ctx = new DataServiceContext(new Uri(this.ServiceUri));
}
//ctx.UndeclaredPropertyBehavior = UndeclaredPropertyBehavior.Support;
ctx.Configurations.RequestPipeline.OnMessageCreating = this.ctx_OnMessageCreating;
return(SocketExceptionHandler.Execute <IEnumerable>(() => (IEnumerable)ctx.Execute <T>(new Uri(query))));
}
public static System.Collections.ArrayList CreateList(IQueryable baseline)
{
// Get all the data into a list (this closes reader so that "Load" can be called on nested elements)
System.Collections.ArrayList list = new System.Collections.ArrayList();
// we know that this thing is potentially a DataServiceQuery, so get the enumerator safely
IEnumerator enumerator = SocketExceptionHandler.Execute <IEnumerator>(baseline.GetEnumerator);
while (enumerator.MoveNext())
{
list.Add(enumerator.Current);
}
return(list);
}
