public QueryComponent(ComponentOperator condition, string prefix, string value, int startIndex, int lastIndex)
{
Operator = condition;
Prefix = prefix ?? string.Empty;
Value = value ?? string.Empty;
StartIndex = startIndex;
LastIndex = lastIndex;
}
private void ClearState(int position)
{
_StartIndex = position + 1;
_Operator = ComponentOperator.None;
_Prefix = null;
_IsPrefix = true;
_IsQuoted = false;
if (_Buffer == null)
{
_Buffer = new StringBuilder();
}
else
{
_Buffer.Clear();
}
}
public ComponentPropertyDescriptor(PropertyDescriptor property)
: base(property.Name, null)
{
_componentType = property.ComponentType;
_isReadOnly = property.IsReadOnly;
_propertyType = property.PropertyType;
PropertyInfo propertyInfo = ComponentOperator.GetPropertyInfo(property);
if (propertyInfo != null)
{
_getter = new Lazy <Getter>(() => ComponentOperator.GetPropertyGetter(_componentType, propertyInfo));
_setter = new Lazy <Setter>(() => ComponentOperator.GetPropertySetter(_componentType, _propertyType, propertyInfo));
}
else
{
_getter = new Lazy <Getter>(() => ComponentOperator.GetPropertyGetter(_componentType, this.Name));
_setter = new Lazy <Setter>(() => ComponentOperator.GetPropertySetter(_componentType, _propertyType, this.Name));
}
}
/// <summary>
/// Initializes the operator resolver.
/// </summary>
/// <returns>The operator resolver.</returns>
private static OperatorResolver InitOperatorResolver()
{
Mock <OperatorResolver> opResolverMock = new Mock <OperatorResolver>();
IExpressionFactory exprFactory =
new ExpressionFactory(
ModelResolvers.ExprResolver,
ModelResolvers.RuleExprResolver,
ModelResolvers.JoinExprResolver,
opResolverMock.Object);
JoinApplyMeasuresOperator joinApplyMeasuresOp = new JoinApplyMeasuresOperator(
exprFactory,
ModelResolvers.DsResolver);
opResolverMock.Setup(o => o(It.IsAny <string>()))
.Returns((string key) =>
{
IOperatorDefinition op;
if (key.In("count", "min", "max", "median", "sum", "avg", "stddev_pop", "stddev_samp", "var_pop", "var_samp"))
{
op = new AggrFunctionOperator(joinApplyMeasuresOp, ModelResolvers.DsResolver);
}
else if (key == "aggr")
{
op = new AggrOperator();
}
else if (key.In("first_value", "last_value", "lag", "rank", "ratio_to_report", "lead"))
{
op = new AnalyticFunctionOperator(joinApplyMeasuresOp, ModelResolvers.DsResolver);
}
else if (key.In("+", "-", "*", "/"))
{
op = new ArithmeticOperator(joinApplyMeasuresOp);
}
else if (key == "between")
{
op = new BetweenOperator(joinApplyMeasuresOp, ModelResolvers.DsResolver);
}
else if (key.In("and", "or", "xor", "not"))
{
op = new BooleanOperator(joinApplyMeasuresOp, ModelResolvers.DsResolver);
}
else if (key == "calc")
{
op = new CalcOperator(ModelResolvers.DsResolver);
}
else if (key == "check_datapoint")
{
op = new CheckDatapointOperator(ModelResolvers.DsResolver, exprFactory);
}
else if (key.In("=", "<>", "<", "<=", ">", ">="))
{
op = new ComparisonOperator(joinApplyMeasuresOp, ModelResolvers.DsResolver);
}
else if (key == "comp")
{
op = new ComponentOperator(ModelResolvers.DsResolver, new ComponentTypeInference(ModelResolvers.DsResolver));
}
else if (key == "const")
{
op = new ConstantOperator(ModelResolvers.DsResolver);
}
else if (key == "current_date")
{
op = new CurrentDateOperator(ModelResolvers.DsResolver);
}
else if (key == "exists_in")
{
op = new ExistsInOperator(ModelResolvers.DsResolver);
}
else if (key == "get")
{
op = new GetOperator(new Mock <IDataModelProvider>().Object); // operator tests should mock IDataModel implementation
}
else if (key == "if")
{
op = new IfThenElseOperator(joinApplyMeasuresOp, ModelResolvers.DsResolver);
}
else if (key.In("in", "not_in"))
{
op = new InOperator(joinApplyMeasuresOp, ModelResolvers.DsResolver);
}
else if (key == "isnull")
{
op = new IsNullOperator(joinApplyMeasuresOp, ModelResolvers.DsResolver);
}
else if (key == "join")
{
op = new JoinOperator(ModelResolvers.DsResolver);
}
else if (key.In("keep", "drop"))
{
op = new KeepDropOperator(ModelResolvers.DsResolver);
}
else if (key == "match_characters")
{
op = new MatchCharactersOperator(joinApplyMeasuresOp, ModelResolvers.DsResolver);
}
else if (key == "#")
{
op = new MembershipOperator();
}
else if (key.In("ceil", "floor", "abs", "exp", "ln", "sqrt", "mod", "round", "power", "log", "trunc"))
{
op = new NumericOperator(joinApplyMeasuresOp, ModelResolvers.DsResolver);
}
else if (key == "nvl")
{
op = new NvlOperator(joinApplyMeasuresOp);
}
else if (key == "opt")
{
op = new OptionalOperator(ModelResolvers.DsResolver);
}
else if (key == "period_indicator")
{
op = new PeriodIndicatorOperator(joinApplyMeasuresOp, ModelResolvers.DsResolver, exprFactory);
}
else if (key == "pivot")
{
op = new PivotOperator(ModelResolvers.DsResolver);
}
else if (key == "ref")
{
op = new ReferenceOperator();
}
else if (key == "rename")
{
op = new RenameOperator(ModelResolvers.DsResolver);
}
else if (key.In("union", "intersect", "setdiff", "symdiff"))
{
op = new SetOperator();
}
else if (key.In("||", "trim", "rtrim", "ltrim", "upper", "lower", "substr", "replace", "instr", "length"))
{
op = new StringOperator(joinApplyMeasuresOp, ModelResolvers.DsResolver);
}
else if (key == "sub")
{
op = new SubspaceOperator(ModelResolvers.DsResolver);
}
else if (key.In("fill_time_series", "flow_to_stock", "stock_to_flow", "timeshift", "time_agg"))
{
op = new TimeOperator();
}
else if (key.In("plus", "minus"))
{
op = new UnaryArithmeticOperator(joinApplyMeasuresOp);
}
else if (key == "unpivot")
{
op = new UnpivotOperator(ModelResolvers.DsResolver);
}
// ---
else if (key == "calcExpr")
{
op = new CalcExprOperator(ModelResolvers.DsResolver);
}
else if (key == "collection")
{
op = new CollectionOperator(ModelResolvers.DsResolver);
}
else if (key == "datasetClause")
{
op = new DatasetClauseOperator();
}
else if (key == "group")
{
op = new GroupOperator(ModelResolvers.DsResolver);
}
else if (key == "order")
{
op = new OrderOperator(ModelResolvers.DsResolver);
}
else if (key == "partition")
{
op = new PartitionOperator(ModelResolvers.DsResolver);
}
else if (key == "renameExpr")
{
op = new RenameExprOperator(ModelResolvers.DsResolver);
}
else if (key == "subExpr")
{
op = new SubspaceExprOperator();
}
else if (key == "when")
{
op = new WhenOperator();
}
else
{
throw new InvalidOperationException("Operator not found");
}
op.Symbol = key;
return(op);
});
return(opResolverMock.Object);
}
private static object GetTypedNull(Type type)
{
return(ComponentOperator.GetTypedDefaultMethod(type)());
}
public IEnumerable <QueryComponent> Parse(string query)
{
if (query == null)
{
yield break;
}
var position = -1;
ClearState(-1);
foreach (var c in query)
{
position++;
if (IsEmpty())
{
switch (c)
{
case '+':
_Operator = ComponentOperator.Required;
continue;
case '-':
_Operator = ComponentOperator.Excluded;
continue;
}
}
if (_IsPrefix)
{
if (IsWhitespace(c))
{
if (_Buffer.Length > 0)
{
yield return(CreateQueryComponent(position - 1));
}
ClearState(position);
}
else if (c == '"')
{
_Prefix = null;
_IsPrefix = false;
_IsQuoted = _Buffer.Length == 0;
}
else if (c == ':')
{
if (_Buffer.Length == 0)
{
_Buffer.Append(c);
}
else
{
_Prefix = _Buffer.ToString();
_Buffer.Clear();
}
_IsPrefix = false;
_IsQuoted = false;
}
else
{
_Buffer.Append(c);
}
}
else
{
if (IsWhitespace(c))
{
if (_IsQuoted)
{
_Buffer.Append(c);
}
else
{
yield return(CreateQueryComponent(position - 1));
ClearState(position);
}
}
else if (c == '"')
{
if (_IsQuoted)
{
if (_Prefix != null || _Buffer.Length > 0)
{
yield return(CreateQueryComponent(position));
}
ClearState(position);
}
else if (_Buffer.Length == 0)
{
_IsQuoted = true;
}
else
{
_Buffer.Append(c);
}
}
else
{
_Buffer.Append(c);
}
}
}
if (!_IsPrefix || _Buffer.Length > 0)
{
yield return(CreateQueryComponent(query.Length - 1));
}
}