/// <summary>
/// Resolves the type of the attribute.
/// </summary>
/// <param name="desc">The desc.</param>
/// <param name="engineImportService">The engine import service.</param>
/// <returns></returns>
public static Type ResolveAttributeType(AnnotationDesc desc, EngineImportService engineImportService)
{
// CLR attributes use a different notation that Java annotations. Format
// the attribute according to CLR conventions.
var attributeTypeName = desc.Name;
var attributeTypeNameForCLR =
(attributeTypeName.EndsWith("Attribute"))
? attributeTypeName
: String.Format("{0}Attribute", attributeTypeName);
// resolve attribute type
try
{
return(engineImportService.ResolveType(attributeTypeNameForCLR));
}
catch (EngineImportException e)
{
throw new AttributeException("Failed to resolve @-annotation class: " + e.Message);
}
return(null);
}
public Type ResolveType(string className, bool forAnnotation)
{
return(_engineImportService.ResolveType(className, forAnnotation));
}
public void CreateNewVariable(string optionalContextName, string variableName, string variableType, bool constant, bool array, bool arrayOfPrimitive, object value, EngineImportService engineImportService)
{
// Determime the variable type
var primitiveType = TypeHelper.GetPrimitiveTypeForName(variableType);
var type = TypeHelper.GetTypeForSimpleName(variableType);
Type arrayType = null;
EventType eventType = null;
if (type == null)
{
if (variableType.ToLower() == "object")
{
type = typeof(Object);
}
if (type == null)
{
eventType = _eventAdapterService.GetEventTypeByName(variableType);
if (eventType != null)
{
type = eventType.UnderlyingType;
}
}
if (type == null)
{
try
{
type = engineImportService.ResolveType(variableType, false);
if (array)
{
arrayType = TypeHelper.GetArrayType(type.GetBoxedType());
}
}
catch (EngineImportException e)
{
Log.Debug("Not found '" + type + "': " + e.Message, e);
// expected
}
}
if (type == null)
{
throw new VariableTypeException("Cannot create variable '" + variableName + "', type '" +
variableType + "' is not a recognized type");
}
if (array && eventType != null)
{
throw new VariableTypeException("Cannot create variable '" + variableName + "', type '" +
variableType + "' cannot be declared as an array type");
}
}
else
{
if (array)
{
if (arrayOfPrimitive)
{
if (primitiveType == null)
{
throw new VariableTypeException("Cannot create variable '" + variableName + "', type '" +
variableType + "' is not a primitive type");
}
arrayType = TypeHelper.GetArrayType(primitiveType);
}
else
{
arrayType = TypeHelper.GetArrayType(type.GetBoxedType());
}
}
}
if ((eventType == null) && (!type.IsBuiltinDataType()) && (type != typeof(object)) && !type.IsArray && !type.IsEnum)
{
if (array)
{
throw new VariableTypeException("Cannot create variable '" + variableName + "', type '" +
variableType + "' cannot be declared as an array, only scalar types can be array");
}
eventType = _eventAdapterService.AddBeanType(type.Name, type, false, false, false);
}
if (arrayType != null)
{
type = arrayType;
}
CreateNewVariable(variableName, optionalContextName, type, eventType, constant, value);
}
private CountMinSketchSpec ValidateSpecification(ExprEvaluatorContext exprEvaluatorContext, EngineImportService engineImportService)
{
// default specification
var spec = new CountMinSketchSpec(new CountMinSketchSpecHashes(DEFAULT__EPS_OF_TOTAL_COUNT, DEFAULT__CONFIDENCE, DEFAULT__SEED), null, DEFAULT__AGENT);
// no parameters
if (this.ChildNodes.Length == 0)
{
return(spec);
}
// check expected parameter type: a json object
if (this.ChildNodes.Length > 1 || !(this.ChildNodes[0] is ExprConstantNode))
{
throw DeclaredWrongParameterExpr;
}
var constantNode = (ExprConstantNode)this.ChildNodes[0];
var value = constantNode.GetConstantValue(exprEvaluatorContext);
if (!(value is IDictionary <string, object>))
{
throw DeclaredWrongParameterExpr;
}
// define what to populate
var descriptors = new PopulateFieldWValueDescriptor[] {
new PopulateFieldWValueDescriptor(NAME__EPS_OF_TOTAL_COUNT, typeof(double), spec.HashesSpec.GetType(), vv => {
if (vv != null)
{
spec.HashesSpec.EpsOfTotalCount = (double)vv;
}
}, true),
new PopulateFieldWValueDescriptor(NAME__CONFIDENCE, typeof(double), spec.HashesSpec.GetType(), vv => {
if (vv != null)
{
spec.HashesSpec.Confidence = (double)vv;
}
}, true),
new PopulateFieldWValueDescriptor(NAME__SEED, typeof(int), spec.HashesSpec.GetType(), vv => {
if (vv != null)
{
spec.HashesSpec.Seed = (int)vv;
}
}, true),
new PopulateFieldWValueDescriptor(NAME__TOPK, typeof(int), spec.GetType(), vv => {
if (vv != null)
{
spec.TopkSpec = (int)vv;
}
}, true),
new PopulateFieldWValueDescriptor(NAME__AGENT, typeof(string), spec.GetType(), vv => {
if (vv != null)
{
CountMinSketchAgent transform;
try {
var transformClass = engineImportService.ResolveType((string)vv);
transform = TypeHelper.Instantiate <CountMinSketchAgent>(transformClass.FullName);
}
catch (Exception e) {
throw new ExprValidationException("Failed to instantiate agent provider: " + e.Message, e);
}
spec.Agent = transform;
}
}, true),
};
// populate from json, validates incorrect names, coerces types, instantiates transform
PopulateUtil.PopulateSpecCheckParameters(descriptors, (IDictionary <String, object>)value, spec, engineImportService);
return(spec);
}
public Type ResolveType(String className)
{
return(_engineImportService.ResolveType(className));
}
