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// File: Property_Evaluator.cpp
// $Id$
#include "Trader_Base.h"
#include "Property_Evaluator.h"
// Constructor
TAO_Property_Evaluator::
TAO_Property_Evaluator(CosTrading::PropertySeq& props,
CORBA::Boolean supports_dp)
: props_ (props),
supports_dp_ (supports_dp)
{
}
TAO_Property_Evaluator::
TAO_Property_Evaluator(CosTrading::Offer& offer,
CORBA::Boolean supports_dp)
: props_ (offer.properties),
supports_dp_ (supports_dp)
{
}
int
TAO_Property_Evaluator::is_dynamic_property (int index)
{
CORBA::Environment env;
int return_value = 0,
num_properties = this->props_.length();
// Ensure index is in bounds.
if (index >= 0 && index < num_properties)
{
// Obtain the value of the property at index <index>.
CORBA::Any& value = this->props_[index].value;
CORBA::TypeCode* type = value.type();
if (type->equal(CosTradingDynamic::_tc_DynamicProp, env))
return_value = 1;
}
return return_value;
}
CORBA::Any*
TAO_Property_Evaluator::property_value(int index,
CORBA::Environment& _env)
TAO_THROW_SPEC ((CosTradingDynamic::DPEvalFailure))
{
CORBA::Any* prop_val = 0;
if (! this->is_dynamic_property(index))
prop_val = &(this->props_[index].value);
else if (this->supports_dp_)
{
// Property is defined at this point.
DP_Eval* dp_eval;
DP_Struct dp_struct;
CORBA::String_var name = this->props_[index].name;
CORBA::Any& value = this->props_[index].value;
// Extract the DP_Struct.
//value >>= dp_struct;
dp_eval = dp_struct.eval_if;
if (CORBA::is_nil (dp_eval))
TAO_THROW_RETURN (CosTradingDynamic::DPEvalFailure (), prop_val);
else
{
CORBA::TypeCode* type = dp_struct.returned_type;
CORBA::Any& info = dp_struct.extra_info;
TAO_TRY
{
// Retrieve the value of the dynamic property.
prop_val = dp_eval->evalDP(name, type, info, TAO_TRY_ENV);
}
TAO_CATCH (CORBA::SystemException, excp)
{
TAO_THROW_RETURN
(CosTradingDynamic::DPEvalFailure (name, type, info),
prop_val);
}
TAO_ENDTRY;
}
}
return prop_val;
}
CORBA::TypeCode*
TAO_Property_Evaluator::property_type(int index)
{
CORBA::TypeCode* prop_type = CORBA::TypeCode::_nil();
// Determine if property is both defined and dynamic.
if (this->is_dynamic_property (index))
{
// Extract type information from the DP_Struct.
CORBA::Any& value = this->props_[index].value;
DP_Struct dp_struct;
//value >>= dp_struct;
// Grab a pointer to the returned_type description
prop_type = CORBA::TypeCode::_duplicate(dp_struct.returned_type);
}
else
// TypeCode is self-evident at this point.
prop_type = this->props_[index].value.type();
return prop_type;
}
TAO_Property_Evaluator_By_Name::
TAO_Property_Evaluator_By_Name (CosTrading::PropertySeq& properties,
CORBA::Environment& _env,
CORBA::Boolean supports_dp)
TAO_THROW_SPEC ((CosTrading::DuplicatePropertyName,
CosTrading::IllegalPropertyName))
: TAO_Property_Evaluator (properties, supports_dp)
{
string prop_name;
int length = this->props_.length();
for (int i = 0; i < length; i++)
{
CosTrading::Property& prop = this->props_[i];
#ifdef CLIENT_LIB
if (! ::is_valid_identifier_name (prop.name))
TAO_THROW (CosTrading::IllegalPropertyName (prop.name));
#else
if (! TAO_Trader_Base::is_valid_identifier_name (prop.name))
TAO_THROW (CosTrading::IllegalPropertyName (prop.name));
#endif /* CLIENT_LIB */
prop_name = prop.name;
if (! (this->table_.insert (make_pair (prop_name, i))).second)
TAO_THROW (CosTrading::DuplicatePropertyName (prop.name));
}
}
TAO_Property_Evaluator_By_Name::
TAO_Property_Evaluator_By_Name(CosTrading::Offer& offer,
CORBA::Boolean supports_dp)
: TAO_Property_Evaluator(offer, supports_dp)
{
int length = this->props_.length();
for (int i = 0; i < length; i++)
{
string prop_name = (char*)this->props_[i].name;
this->table_[prop_name] = i;
}
}
int
TAO_Property_Evaluator_By_Name::
is_dynamic_property(const char* property_name)
{
int predicate = 0;
string prop_name (property_name);
Lookup_Table_Iter lookup_iter = this->table_.find (prop_name);
// If the property name is in the map, delegate evaluation to our
// superclass. Otherwise, throw an exception.
if (lookup_iter != this->table_.end())
{
int index = (*lookup_iter).second;
predicate = TAO_Property_Evaluator::is_dynamic_property(index);
}
return predicate;
}
CORBA::Any*
TAO_Property_Evaluator_By_Name::property_value(const char* property_name,
CORBA::Environment& _env)
TAO_THROW_SPEC ((CosTradingDynamic::DPEvalFailure))
{
CORBA::Any* prop_value = 0;
string prop_name(property_name);
Lookup_Table_Iter lookup_iter = this->table_.find(prop_name);
// If the property name is in the map, delegate evaluation to our
// superclass. Otherwise, throw an exception.
if (lookup_iter != this->table_.end())
{
int index = (*lookup_iter).second;
prop_value = TAO_Property_Evaluator::property_value(index, _env);
}
return prop_value;
}
CORBA::TypeCode*
TAO_Property_Evaluator_By_Name::property_type(const char* property_name)
{
string prop_name(property_name);
CORBA::TypeCode* prop_type = CORBA::TypeCode::_nil();
Lookup_Table_Iter lookup_iter = this->table_.find(prop_name);
// If the property name is in the map, delegate evaluation to our
// superclass. Otherwise, throw an exception.
if (lookup_iter != this->table_.end())
{
int index = (*lookup_iter).second;
prop_type = TAO_Property_Evaluator::property_type(index);
}
return prop_type;
}
const CosTrading::Property*
TAO_Property_Evaluator_By_Name::get_property (const char* property_name)
{
CosTrading::Property* property = 0;
string prop_name (property_name);
Lookup_Table_Iter lookup_iter = this->table_.find(prop_name);
if (lookup_iter != this->table_.end())
property = &this->props_[(*lookup_iter).second];
return property;
}
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