public void TestCalculationExpressionWithDies()
{
var d1 = new DiceExpression("1d6");
var d2 = new DiceExpression("1d8");
var ce = new CalculationExpression("+", d1, d2);
Assert.AreEqual(8, ce.GetExpected());
Assert.AreEqual(2, ce.GetMin());
Assert.AreEqual(14, ce.GetMax());
ce = new CalculationExpression("-", d1, d2);
Assert.AreEqual(-1, ce.GetExpected());
Assert.AreEqual(-7, ce.GetMin());
Assert.AreEqual(5, ce.GetMax());
ce = new CalculationExpression("*", d1, d2);
Assert.AreEqual(3.5 * 4.5, ce.GetExpected());
Assert.AreEqual(1, ce.GetMin());
Assert.AreEqual(48, ce.GetMax());
ce = new CalculationExpression("/", d1, d2);
Assert.AreEqual(3.5 / 4.5, ce.GetExpected());
Assert.AreEqual(0.125, ce.GetMin());
Assert.AreEqual(6, ce.GetMax());
}
public void TestCalculationExpressionWithConstants()
{
var const1 = new ConstantExpression("1");
var const2 = new ConstantExpression("-1");
var ce = new CalculationExpression("+", const1, const2);
Assert.AreEqual(0, ce.GetExpected());
Assert.AreEqual(0, ce.GetMin());
Assert.AreEqual(0, ce.GetMax());
Assert.AreEqual(0, ce.Roll());
ce = new CalculationExpression("-", const1, const2);
Assert.AreEqual(2, ce.GetExpected());
Assert.AreEqual(2, ce.GetMin());
Assert.AreEqual(2, ce.GetMax());
Assert.AreEqual(2, ce.Roll());
ce = new CalculationExpression("*", const1, const2);
Assert.AreEqual(-1, ce.GetExpected());
Assert.AreEqual(-1, ce.GetMin());
Assert.AreEqual(-1, ce.GetMax());
Assert.AreEqual(-1, ce.Roll());
ce = new CalculationExpression("/", const1, const2);
Assert.AreEqual(-1, ce.GetExpected());
Assert.AreEqual(-1, ce.GetMin());
Assert.AreEqual(-1, ce.GetMax());
Assert.AreEqual(-1, ce.Roll());
}
public void TestCalculationExpressionWithCalculations()
{
var const1 = new ConstantExpression("1");
var const2 = new ConstantExpression("-1");
var d1 = new DiceExpression("1d6");
var d2 = new DiceExpression("1d8");
var ce = new CalculationExpression("+", new CalculationExpression("+", d1, d2), new CalculationExpression("+", const1, const2));
Assert.AreEqual(8, ce.GetExpected());
Assert.AreEqual(2, ce.GetMin());
Assert.AreEqual(14, ce.GetMax());
}
protected override ScalarExpression OnBuildQuery(QueryBuilderContext context)
{
var result = new CalculationExpression
{
Operator = CalculationOperator.DateName,
DateTimePart = DateTimePart,
Expressions = new List <ScalarExpression>
{
Argument.BuildQuery(context)
}
};
return(result);
}
/// <summary>
/// Convert the expression tree into a structured query expression.
/// </summary>
/// <param name="context">Context information about this query building session, including the target structured query object.</param>
/// <returns>A scalar expression that can be used within the query.</returns>
protected virtual ScalarExpression OnBuildQuery(QueryBuilderContext context)
{
// Reflect for attributes
Type type = GetType();
var queryEngAttribute = GetQueryEngineOperator(type);
if (queryEngAttribute == null)
{
throw new NotImplementedException(type.Name);
}
// Build arguments
var arguments = new List <ScalarExpression>();
foreach (ExpressionNode argument in Arguments)
{
ScalarExpression queryExpr = argument.BuildQuery(context);
arguments.Add(queryExpr);
}
// Generic Calculation Expression
if (queryEngAttribute.CalculationOperator != null)
{
var result = new CalculationExpression();
result.Operator = queryEngAttribute.CalculationOperator.Value;
result.Expressions = arguments;
return(result);
}
// Generic Comparison Expression
if (queryEngAttribute.ComparisonOperator != null)
{
var result = new ComparisonExpression();
result.Operator = queryEngAttribute.ComparisonOperator.Value;
result.Expressions = arguments;
return(result);
}
// Generic Comparison Expression
if (queryEngAttribute.LogicalOperator != null)
{
var result = new LogicalExpression();
result.Operator = queryEngAttribute.LogicalOperator.Value;
result.Expressions = arguments;
return(result);
}
throw new InvalidOperationException(type.Name);
}
protected override ScalarExpression OnBuildQuery(QueryBuilderContext context)
{
var result = new CalculationExpression
{
Operator = CalculationOperator.DateAdd,
DateTimePart = DateTimePart,
InputType = InputType.Type,
Expressions = new List <ScalarExpression>
{
// Caution.. CalculationOperator.DateAdd was implemented backwards
Right.BuildQuery(context),
Left.BuildQuery(context)
}
};
return(result);
}
public static ScalarExpression CastPrecision(ScalarExpression decimalExpression, int precision)
{
var result = new CalculationExpression
{
Operator = CalculationOperator.Cast,
CastType = DatabaseType.DecimalType,
Expressions = new List <ScalarExpression>
{
decimalExpression,
new LiteralExpression {
Value = new EDC.ReadiNow.Metadata.TypedValue(precision)
}
}
};
return(result);
}
protected override ScalarExpression OnBuildQuery(QueryBuilderContext context)
{
DatabaseType dbType = DataTypeHelper.ToDatabaseType(ResultType.Type);
ScalarExpression argument = Argument.BuildQuery(context);
var result = new CalculationExpression
{
Expressions = new List <ScalarExpression>
{
argument
},
Operator = CalculationOperator.Cast,
CastType = dbType,
DisplayType = dbType,
InputType = Argument.ResultType.Type
};
return(result);
}
protected override ScalarExpression OnBuildQuery(QueryBuilderContext context)
{
ScalarExpression arg = Argument.BuildQuery(context);
if (ResultType.Type == DataType.Entity)
{
return(arg);
}
// Special case for AggregateExpression, because if we aggregate a choicefield, then it presents
// as an Entity type, therefore requesting this cast - but the query builder wants to receive the aggregate expression directly.
if (arg is EDC.ReadiNow.Metadata.Query.Structured.AggregateExpression)
{
var result = new MutateExpression {
Expression = arg
};
switch (ResultType.Type)
{
case DataType.String:
result.MutateType = MutateType.DisplaySql;
break;
case DataType.Bool:
result.MutateType = MutateType.BoolSql;
break;
default:
throw new InvalidOperationException(ResultType.Type.ToString( ));
}
return(result);
}
// Just refer to the node
var queryNode = context.GetNode(Argument);
switch (ResultType.Type)
{
case DataType.String:
var nameResult = new ResourceDataColumn
{
FieldId = "core:name",
NodeId = queryNode.NodeId
};
return(nameResult);
case DataType.Bool:
var boolResult = new CalculationExpression
{
Operator = CalculationOperator.IsNull,
Expressions = new List <ScalarExpression>
{
new IdExpression {
NodeId = queryNode.NodeId
}
}
};
return(boolResult);
default:
throw new InvalidOperationException(ResultType.Type.ToString());
}
}
/// <summary>
/// Create a structured query that will return types/objects matching a particular name.
/// </summary>
/// <remarks>
/// Returns objects, system types, enums, and activity types. But not other things that derive from type (such as fieldType).
/// </remarks>
/// <returns>
/// StructuredQuery with a @scriptName query parameter.
/// </returns>
private static StructuredQuery BuildTypeByNameQuery()
{
// List of types that we allow to be referenced by names
long[] allowedTypeTypes = new[] {
Definition.Definition_Type.Id,
ManagedType.ManagedType_Type.Id,
EntityType.EntityType_Type.Id,
EnumType.EnumType_Type.Id,
ActivityType.ActivityType_Type.Id
};
// Create the structured query
var rootEntity = new ResourceEntity(new EntityRef(WellKnownAliases.CurrentTenant.Type));
var typeType = new RelatedResource(new EntityRef(WellKnownAliases.CurrentTenant.IsOfType));
rootEntity.RelatedEntities.Add(typeType);
var query = new StructuredQuery()
{
RootEntity = rootEntity
};
var col = new SelectColumn {
Expression = new SQ.IdExpression {
NodeId = rootEntity.NodeId
}
};
query.SelectColumns.Add(col);
// Allowed-type condition
var typeCondition = new QueryCondition
{
Expression = new SQ.IdExpression {
NodeId = typeType.NodeId
},
Operator = ConditionType.AnyOf,
Arguments = allowedTypeTypes.Select(id => new TypedValue()
{
Value = id, Type = DatabaseType.IdentifierType
}).ToList()
};
query.Conditions.Add(typeCondition);
// Script-name condition
var calcExpr = new CalculationExpression
{
Operator = CalculationOperator.IsNull,
Expressions = new List <ScalarExpression>
{
new ResourceDataColumn(rootEntity, new EntityRef("core:typeScriptName")),
new ResourceDataColumn(rootEntity, new EntityRef("core:name")),
}
};
var nameCondition = new QueryCondition
{
Expression = calcExpr,
Operator = ConditionType.Equal,
Parameter = "@scriptName"
};
query.Conditions.Add(nameCondition);
return(query);
}
private static IExpression ParseInternal(string formula, Random random, Dictionary <string, string> substitutionDictionary)
{
IExpression result = null;
var reg = new Regex("#[0-9]+#");
if (reg.Match(formula).Value.Equals(formula))
{
formula = substitutionDictionary[formula];
}
// Add + Subtract
var subExpr = formula.Split(new[] { '+', '-' });
if (subExpr.Length > 1)
{
var opsString = (string)formula.Clone();
foreach (var sub in subExpr)
{
opsString = opsString.Remove(opsString.IndexOf(sub, StringComparison.InvariantCulture), sub.Length);
}
var ops = opsString.ToCharArray();
var expr = subExpr.Select(f => ParseInternal(f, random, substitutionDictionary)).ToList();
result = new CalculationExpression(ops[0].ToString(), expr[0], expr[1]);
for (var i = 2; i < expr.Count; i++)
{
result = new CalculationExpression(ops[i - 1].ToString(), result, expr[i]);
}
}
if (result != null)
{
return(result);
}
// Multiply + Divide
subExpr = formula.Split(new[] { '*', '/' });
if (subExpr.Length > 1)
{
var opsString = (string)formula.Clone();
foreach (var sub in subExpr)
{
opsString = opsString.Remove(opsString.IndexOf(sub, StringComparison.InvariantCulture), sub.Length);
}
var ops = opsString.ToCharArray();
var expr = subExpr.Select(f => ParseInternal(f, random, substitutionDictionary)).ToList();
result = new CalculationExpression(ops[0].ToString(), expr[0], expr[1]);
for (var i = 2; i < expr.Count; i++)
{
result = new CalculationExpression(ops[i - 1].ToString(), result, expr[i]);
}
}
if (result != null)
{
return(result);
}
// Dice
if (formula.Contains("d"))
{
result = new DiceExpression(formula, random);
}
if (result != null)
{
return(result);
}
// Constant
result = new ConstantExpression(formula);
return(result);
}
