internal static IQueryable Deserialize(IQueryable query, IEnumerable <ServiceQueryPart> queryParts, QueryResolver queryResolver)
{
if (query == null)
{
throw Error.ArgumentNull("query");
}
if (queryParts == null)
{
throw Error.ArgumentNull("queryParts");
}
foreach (ServiceQueryPart part in queryParts)
{
switch (part.QueryOperator)
{
case "filter":
try
{
query = DynamicQueryable.Where(query, part.Expression, queryResolver);
}
catch (ParseException e)
{
throw new ParseException(
Error.Format(SRResources.ParseErrorInClause, "$filter", e.Message));
}
break;
case "orderby":
try
{
query = DynamicQueryable.OrderBy(query, part.Expression, queryResolver);
}
catch (ParseException e)
{
throw new ParseException(
Error.Format(SRResources.ParseErrorInClause, "$orderby", e.Message));
}
break;
case "skip":
try
{
int skipCount = Convert.ToInt32(part.Expression, System.Globalization.CultureInfo.InvariantCulture);
if (skipCount < 0)
{
throw new ParseException(
Error.Format(SRResources.PositiveIntegerExpectedForODataQueryParameter, "$skip", part.Expression));
}
query = DynamicQueryable.Skip(query, skipCount);
}
catch (FormatException e)
{
throw new ParseException(
Error.Format(SRResources.ParseErrorInClause, "$skip", e.Message));
}
break;
case "top":
try
{
int topCount = Convert.ToInt32(part.Expression, System.Globalization.CultureInfo.InvariantCulture);
if (topCount < 0)
{
throw new ParseException(
Error.Format(SRResources.PositiveIntegerExpectedForODataQueryParameter, "$top", part.Expression));
}
query = DynamicQueryable.Take(query, topCount);
}
catch (FormatException e)
{
throw new ParseException(
Error.Format(SRResources.ParseErrorInClause, "$top", e.Message));
}
break;
}
}
return(query);
}
public IQueryable Take(IQueryable source, int count)
{
return(DynamicQueryable.Take(source, count));
}
