/// <summary>
/// Parse the level option in the expand option text.
/// </summary>
/// <returns>The level option for expand in long type</returns>
private long?ParseInnerLevel()
{
long?levelsOption = null;
// advance to the equal sign
this.lexer.NextToken();
string levelsText = UriParserHelper.ReadQueryOption(this.lexer);
long level;
if (string.Equals(
ExpressionConstants.KeywordMax,
levelsText,
this.enableCaseInsensitiveBuiltinIdentifier ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal))
{
levelsOption = long.MinValue;
}
else if (!long.TryParse(levelsText, NumberStyles.None, CultureInfo.InvariantCulture, out level) || level < 0)
{
throw new ODataException(ODataErrorStrings.UriSelectParser_InvalidLevelsOption(levelsText));
}
else
{
levelsOption = level;
}
return(levelsOption);
}
/// <summary>
/// Parse the select option in the select/expand option text.
/// </summary>
/// <param name="pathToken">The path segment token</param>
/// <returns>The select option for select/expand</returns>
private SelectToken ParseInnerSelect(PathSegmentToken pathToken)
{
// advance to the equal sign
this.lexer.NextToken();
string selectText = UriParserHelper.ReadQueryOption(this.lexer);
IEdmStructuredType targetStructuredType = null;
if (this.resolver != null && this.parentStructuredType != null)
{
var parentProperty = this.resolver.ResolveProperty(parentStructuredType, pathToken.Identifier);
// It is a property, need to find the type.
// or for select query like: $select=Address($expand=City)
if (parentProperty != null)
{
targetStructuredType = parentProperty.Type.ToStructuredType();
}
}
SelectExpandParser innerSelectParser = new SelectExpandParser(
resolver,
selectText,
targetStructuredType,
this.maxRecursionDepth - 1,
this.enableCaseInsensitiveBuiltinIdentifier,
this.enableNoDollarQueryOptions);
return(innerSelectParser.ParseSelect());
}
/// <summary>
/// Parse the expand option in the select/expand option text.
/// </summary>
/// <param name="pathToken">The path segment token</param>
/// <returns>The expand option for select/expand</returns>
private ExpandToken ParseInnerExpand(PathSegmentToken pathToken)
{
// advance to the equal sign
this.lexer.NextToken();
string expandText = UriParserHelper.ReadQueryOption(this.lexer);
IEdmStructuredType targetStructuredType = null;
if (this.resolver != null && this.parentStructuredType != null)
{
var parentProperty = this.resolver.ResolveProperty(parentStructuredType, pathToken.Identifier);
// it is a property, need to find the type.
// Like $expand=Friends($expand=Trips($expand=*)), when expandText becomes "Trips($expand=*)",
// find navigation property Trips of Friends, then get Entity type of Trips.
// or for select query like: $select=Address($expand=City)
if (parentProperty != null)
{
targetStructuredType = parentProperty.Type.ToStructuredType();
}
}
SelectExpandParser innerExpandParser = new SelectExpandParser(
resolver,
expandText,
targetStructuredType,
this.maxRecursionDepth - 1,
this.enableCaseInsensitiveBuiltinIdentifier,
this.enableNoDollarQueryOptions);
return(innerExpandParser.ParseExpand());
}
/// <summary>
/// Parse the apply option in the expand option text.
/// </summary>
/// <returns>The apply option for expand</returns>
private IEnumerable <QueryToken> ParseInnerApply()
{
this.lexer.NextToken();
string applyText = UriParserHelper.ReadQueryOption(this.lexer);
UriQueryExpressionParser applyParser = new UriQueryExpressionParser(this.MaxOrderByDepth, enableCaseInsensitiveBuiltinIdentifier);
return(applyParser.ParseApply(applyText));
}
/// <summary>
/// Parse the compute option in the expand option text.
/// </summary>
/// <returns>The compute option for expand</returns>
private ComputeToken ParseInnerCompute()
{
this.lexer.NextToken();
string computeText = UriParserHelper.ReadQueryOption(this.lexer);
UriQueryExpressionParser computeParser = new UriQueryExpressionParser(this.MaxOrderByDepth, enableCaseInsensitiveBuiltinIdentifier);
return(computeParser.ParseCompute(computeText));
}
/// <summary>
/// Parse the orderby option in the select/expand option text.
/// </summary>
/// <returns>The orderby option for select/expand</returns>
private IEnumerable <OrderByToken> ParseInnerOrderBy()
{
// advance to the equal sign
this.lexer.NextToken();
string orderByText = UriParserHelper.ReadQueryOption(this.lexer);
UriQueryExpressionParser orderbyParser = new UriQueryExpressionParser(this.MaxOrderByDepth, enableCaseInsensitiveBuiltinIdentifier);
return(orderbyParser.ParseOrderBy(orderByText));
}
/// <summary>
/// Parse the search option in the select/expand option text.
/// </summary>
/// <returns>The search option for select/expand</returns>
private QueryToken ParseInnerSearch()
{
// advance to the equal sign
this.lexer.NextToken();
string searchText = UriParserHelper.ReadQueryOption(this.lexer);
SearchParser searchParser = new SearchParser(this.MaxSearchDepth);
return(searchParser.ParseSearch(searchText));
}
/// <summary>
/// Parse the filter option in the select/expand option text.
/// </summary>
/// <returns>The filter option for select/expand</returns>
private QueryToken ParseInnerFilter()
{
// advance to the equal sign
this.lexer.NextToken();
string filterText = UriParserHelper.ReadQueryOption(this.lexer);
UriQueryExpressionParser filterParser = new UriQueryExpressionParser(this.MaxFilterDepth, enableCaseInsensitiveBuiltinIdentifier);
return(filterParser.ParseFilter(filterText));
}
/// <summary>
/// Parse the search option in the $count segment.
/// </summary>
/// <returns>The search option for the $count segment.</returns>
private QueryToken ParseInnerSearch()
{
// advance to the equal sign
this.lexer.NextToken();
string searchText = UriParserHelper.ReadQueryOption(this.lexer);
SearchParser searchParser = new SearchParser(ODataUriParserSettings.DefaultSearchLimit);
return(searchParser.ParseSearch(searchText));
}
/// <summary>
/// Parse the filter option in the $count segment.
/// </summary>
/// <returns>The filter option for the $count segment.</returns>
private QueryToken ParseInnerFilter()
{
// advance to the equal sign
this.lexer.NextToken();
string filterText = UriParserHelper.ReadQueryOption(this.lexer);
UriQueryExpressionParser filterParser = new UriQueryExpressionParser(ODataUriParserSettings.DefaultFilterLimit, this.UriQueryExpressionParser.EnableCaseInsensitiveBuiltinIdentifier);
return(filterParser.ParseFilter(filterText));
}
/// <summary>
/// Parse the skip option in the select/expand option text.
/// </summary>
/// <returns>The skip option for select/expand</returns>
private long?ParseInnerSkip()
{
// advance to the equal sign
this.lexer.NextToken();
string skipText = UriParserHelper.ReadQueryOption(this.lexer);
// TryParse requires a non-nullable non-negative long.
long skip;
if (!long.TryParse(skipText, out skip) || skip < 0)
{
throw new ODataException(ODataErrorStrings.UriSelectParser_InvalidSkipOption(skipText));
}
return(skip);
}
/// <summary>
/// Parse the count option in the select/expand option text.
/// </summary>
/// <returns>The count option for select/expand</returns>
private bool?ParseInnerCount()
{
// advance to the equal sign
this.lexer.NextToken();
string countText = UriParserHelper.ReadQueryOption(this.lexer);
switch (countText)
{
case ExpressionConstants.KeywordTrue:
return(true);
case ExpressionConstants.KeywordFalse:
return(false);
default:
throw new ODataException(ODataErrorStrings.UriSelectParser_InvalidCountOption(countText));
}
}
