DECLARE_EXPORT void ItemSupplier::validate(Action action)
{
// Catch null supplier and item pointers
Supplier *sup = getSupplier();
Item *it = getItem();
Location *loc = getLocation();
if (!sup || !it)
{
// Invalid ItemSupplier model
if (!sup && !it)
throw DataException("Missing supplier and item on a itemsupplier");
else if (!sup)
throw DataException("Missing supplier on a itemsupplier on item '"
+ it->getName() + "'");
else if (!it)
throw DataException("Missing item on a itemsupplier on supplier '"
+ sup->getName() + "'");
}
// Check if a ItemSupplier with 1) identical supplier, 2) identical item
// 3) identical location, and 4) overlapping effectivity dates already exists
Supplier::itemlist::const_iterator i = sup->getItems().begin();
for (; i != sup->getItems().end(); ++i)
if (i->getItem() == it
&& i->getEffective().overlap(getEffective())
&& i->getLocation() == loc
&& &*i != this)
break;
// Apply the appropriate action
switch (action)
{
case ADD:
if (i != sup->getItems().end())
{
throw DataException("ItemSupplier of '" + sup->getName() + "' and '"
+ it->getName() + "' already exists");
}
break;
case CHANGE:
throw DataException("Can't update a itemsupplier");
case ADD_CHANGE:
// ADD is handled in the code after the switch statement
if (i == sup->getItems().end()) break;
throw DataException("Can't update a itemsupplier");
case REMOVE:
// This ItemSupplier was only used temporarily during the reading process
delete this;
if (i == sup->getItems().end())
// Nothing to delete
throw DataException("Can't remove nonexistent itemsupplier of '"
+ sup->getName() + "' and '" + it->getName() + "'");
delete &*i;
return;
}
}
Location::~Location()
{
// Remove all references from buffers to this location
for (Buffer::iterator buf = Buffer::begin();
buf != Buffer::end(); ++buf)
if (buf->getLocation() == this)
buf->setLocation(nullptr);
// Remove all references from resources to this location
for (Resource::iterator res = Resource::begin();
res != Resource::end(); ++res)
if (res->getLocation() == this)
res->setLocation(nullptr);
// Remove all references from operations to this location
for (Operation::iterator oper = Operation::begin();
oper != Operation::end(); ++oper)
if (oper->getLocation() == this)
oper->setLocation(nullptr);
// Remove all references from demands to this location
for (Demand::iterator dmd = Demand::begin();
dmd != Demand::end(); ++dmd)
if (dmd->getLocation() == this)
dmd->setLocation(nullptr);
// Remove all item suppliers referencing this location
for (Supplier::iterator sup = Supplier::begin();
sup != Supplier::end(); ++sup)
{
for (Supplier::itemlist::const_iterator it = sup->getItems().begin();
it != sup->getItems().end(); )
{
if (it->getLocation() == this)
{
const ItemSupplier *itemsup = &*it;
++it; // Advance iterator before the delete
delete itemsup;
}
else
++it;
}
}
// The ItemDistribution objects are automatically deleted by the
// destructor of the Association list class.
}