private SqlString ExpandDynamicFilterParameters(SqlString sqlString, ICollection <IParameterSpecification> parameterSpecs, ISessionImplementor session)
{
var enabledFilters = session.EnabledFilters;
if (enabledFilters.Count == 0 || sqlString.ToString().IndexOf(ParserHelper.HqlVariablePrefix) < 0)
{
return(sqlString);
}
Dialect.Dialect dialect = session.Factory.Dialect;
string symbols = ParserHelper.HqlSeparators + dialect.OpenQuote + dialect.CloseQuote;
var result = new SqlStringBuilder();
foreach (var sqlPart in sqlString)
{
var parameter = sqlPart as Parameter;
if (parameter != null)
{
result.Add(parameter);
continue;
}
var sqlFragment = sqlPart.ToString();
var tokens = new StringTokenizer(sqlFragment, symbols, true);
foreach (string token in tokens)
{
if (token.StartsWith(ParserHelper.HqlVariablePrefix))
{
string filterParameterName = token.Substring(1);
string[] parts = StringHelper.ParseFilterParameterName(filterParameterName);
string filterName = parts[0];
string parameterName = parts[1];
var filter = (FilterImpl)enabledFilters[filterName];
object value = filter.GetParameter(parameterName);
IType type = filter.FilterDefinition.GetParameterType(parameterName);
int parameterColumnSpan = type.GetColumnSpan(session.Factory);
var collectionValue = value as ICollection;
int? collectionSpan = null;
// Add query chunk
string typeBindFragment = string.Join(", ", Enumerable.Repeat("?", parameterColumnSpan).ToArray());
string bindFragment;
if (collectionValue != null && !type.ReturnedClass.IsArray)
{
collectionSpan = collectionValue.Count;
bindFragment = string.Join(", ", Enumerable.Repeat(typeBindFragment, collectionValue.Count).ToArray());
}
else
{
bindFragment = typeBindFragment;
}
// dynamic-filter parameter tracking
var filterParameterFragment = SqlString.Parse(bindFragment);
var dynamicFilterParameterSpecification = new DynamicFilterParameterSpecification(filterName, parameterName, type, collectionSpan);
var parameters = filterParameterFragment.GetParameters().ToArray();
var sqlParameterPos = 0;
var paramTrackers = dynamicFilterParameterSpecification.GetIdsForBackTrack(session.Factory);
foreach (var paramTracker in paramTrackers)
{
parameters[sqlParameterPos++].BackTrack = paramTracker;
}
parameterSpecs.Add(dynamicFilterParameterSpecification);
result.Add(filterParameterFragment);
}
else
{
result.Add(token);
}
}
}
return(result.ToSqlString());
}
internal static SqlString ExpandDynamicFilterParameters(SqlString sqlString, ICollection <IParameterSpecification> parameterSpecs, ISessionImplementor session)
{
var enabledFilters = session.EnabledFilters;
if (enabledFilters.Count == 0 || !ParserHelper.HasHqlVariable(sqlString))
{
return(sqlString);
}
Dialect.Dialect dialect = session.Factory.Dialect;
string symbols = ParserHelper.HqlSeparators + dialect.OpenQuote + dialect.CloseQuote;
var result = new SqlStringBuilder();
foreach (var sqlPart in sqlString)
{
var parameter = sqlPart as Parameter;
if (parameter != null)
{
result.Add(parameter);
continue;
}
var sqlFragment = sqlPart.ToString();
var tokens = new StringTokenizer(sqlFragment, symbols, true);
foreach (string token in tokens)
{
if (ParserHelper.IsHqlVariable(token))
{
string filterParameterName = token.Substring(1);
string[] parts = StringHelper.ParseFilterParameterName(filterParameterName);
string filterName = parts[0];
string parameterName = parts[1];
var filter = (FilterImpl)enabledFilters[filterName];
int? collectionSpan = filter.GetParameterSpan(parameterName);
IType type = filter.FilterDefinition.GetParameterType(parameterName);
int parameterColumnSpan = type.GetColumnSpan(session.Factory);
// Add query chunk
string typeBindFragment = string.Join(", ", Enumerable.Repeat("?", parameterColumnSpan));
string bindFragment;
if (collectionSpan.HasValue && !type.ReturnedClass.IsArray)
{
bindFragment = string.Join(", ", Enumerable.Repeat(typeBindFragment, collectionSpan.Value));
}
else
{
bindFragment = typeBindFragment;
}
// dynamic-filter parameter tracking
var filterParameterFragment = SqlString.Parse(bindFragment);
var dynamicFilterParameterSpecification = new DynamicFilterParameterSpecification(filterName, parameterName, type, collectionSpan);
var parameters = filterParameterFragment.GetParameters().ToArray();
var sqlParameterPos = 0;
var paramTrackers = dynamicFilterParameterSpecification.GetIdsForBackTrack(session.Factory);
foreach (var paramTracker in paramTrackers)
{
parameters[sqlParameterPos++].BackTrack = paramTracker;
}
if (parameterSpecs.OfType <DynamicFilterParameterSpecification>().Any(p => p.FilterParameterFullName == dynamicFilterParameterSpecification.FilterParameterFullName))
{
var alreadyExistingParamSpecs = parameterSpecs.OfType <DynamicFilterParameterSpecification>().Where(p => p.FilterParameterFullName == dynamicFilterParameterSpecification.FilterParameterFullName).ToList();
foreach (var alreadyExistingParamSpec in alreadyExistingParamSpecs)
{
parameterSpecs.Remove(alreadyExistingParamSpec);
}
}
parameterSpecs.Add(dynamicFilterParameterSpecification);
result.Add(filterParameterFragment);
}
else
{
result.Add(token);
}
}
}
return(result.ToSqlString());
}
