private static ODataOperation CreateODataOperation(IEdmOperation operation, ProcedureLinkBuilder builder, EntityInstanceContext entityInstanceContext)
{
Contract.Assert(operation != null);
Contract.Assert(builder != null);
Contract.Assert(entityInstanceContext != null);
ODataMetadataLevel metadataLevel = entityInstanceContext.SerializerContext.MetadataLevel;
IEdmModel model = entityInstanceContext.EdmModel;
if (ShouldOmitOperation(operation, builder, metadataLevel))
{
return(null);
}
Uri target = builder.BuildLink(entityInstanceContext);
if (target == null)
{
return(null);
}
Uri baseUri = new Uri(entityInstanceContext.Url.CreateODataLink(new MetadataPathSegment()));
Uri metadata = new Uri(baseUri, "#" + CreateMetadataFragment(operation));
ODataOperation odataOperation;
if (operation is IEdmAction)
{
odataOperation = new ODataAction();
}
else
{
odataOperation = new ODataFunction();
}
odataOperation.Metadata = metadata;
// Always omit the title in minimal/no metadata modes.
if (metadataLevel == ODataMetadataLevel.FullMetadata)
{
EmitTitle(model, operation, odataOperation);
}
// Omit the target in minimal/no metadata modes unless it doesn't follow conventions.
if (!builder.FollowsConventions || metadataLevel == ODataMetadataLevel.FullMetadata)
{
odataOperation.Target = target;
}
return(odataOperation);
}
internal static bool ShouldOmitOperation(IEdmOperation operation, ProcedureLinkBuilder builder,
ODataMetadataLevel metadataLevel)
{
Contract.Assert(builder != null);
switch (metadataLevel)
{
case ODataMetadataLevel.MinimalMetadata:
case ODataMetadataLevel.NoMetadata:
return(operation.IsBound && builder.FollowsConventions);
case ODataMetadataLevel.FullMetadata:
default: // All values already specified; just keeping the compiler happy.
return(false);
}
}