DECLARE_EXPORT Object* Load::finder(const DataValueDict& d)
{
// Check operation
const DataValue* tmp = d.get(Tags::operation);
if (!tmp)
return NULL;
Operation* oper = static_cast<Operation*>(tmp->getObject());
// Check resource field
tmp = d.get(Tags::resource);
if (!tmp)
return NULL;
Resource* res = static_cast<Resource*>(tmp->getObject());
// Walk over all loads of the operation, and return
// the first one with matching
const DataValue* hasEffectiveStart = d.get(Tags::effective_start);
Date effective_start;
if (hasEffectiveStart)
effective_start = hasEffectiveStart->getDate();
const DataValue* hasEffectiveEnd = d.get(Tags::effective_end);
Date effective_end;
if (hasEffectiveEnd)
effective_end = hasEffectiveEnd->getDate();
const DataValue* hasPriority = d.get(Tags::priority);
int priority;
if (hasPriority)
priority = hasPriority->getInt();
const DataValue* hasName = d.get(Tags::name);
string name;
if (hasName)
name = hasName->getString();
for (Operation::loadlist::const_iterator fl = oper->getLoads().begin();
fl != oper->getLoads().end(); ++fl)
{
if (fl->getResource() != res)
continue;
if (hasEffectiveStart && fl->getEffectiveStart() != effective_start)
continue;
if (hasEffectiveEnd && fl->getEffectiveEnd() != effective_end)
continue;
if (hasPriority && fl->getPriority() != priority)
continue;
if (hasName && fl->getName() != name)
continue;
return const_cast<Load*>(&*fl);
}
return NULL;
}
DECLARE_EXPORT void Load::validate(Action action)
{
// Catch null operation and resource pointers
Operation *oper = getOperation();
Resource *res = getResource();
if (!oper || !res)
{
// Invalid load model
if (!oper && !res)
throw DataException("Missing operation and resource on a load");
else if (!oper)
throw DataException("Missing operation on a load on resource '"
+ res->getName() + "'");
else if (!res)
throw DataException("Missing resource on a load on operation '"
+ oper->getName() + "'");
}
// Check if a load with 1) identical resource, 2) identical operation and
// 3) overlapping effectivity dates already exists
Operation::loadlist::const_iterator i = oper->getLoads().begin();
for (; i != oper->getLoads().end(); ++i)
if (i->getResource() == res
&& i->getEffective().overlap(getEffective())
&& &*i != this)
break;
// Apply the appropriate action
switch (action)
{
case ADD:
if (i != oper->getLoads().end())
{
throw DataException("Load of '" + oper->getName() + "' and '"
+ res->getName() + "' already exists");
}
break;
case CHANGE:
throw DataException("Can't update a load");
case ADD_CHANGE:
// ADD is handled in the code after the switch statement
if (i == oper->getLoads().end()) break;
throw DataException("Can't update a load");
case REMOVE:
// This load was only used temporarily during the reading process
delete this;
if (i == oper->getLoads().end())
// Nothing to delete
throw DataException("Can't remove nonexistent load of '"
+ oper->getName() + "' and '" + res->getName() + "'");
delete &*i;
// Set a flag to make sure the level computation is triggered again
HasLevel::triggerLazyRecomputation();
return;
}
// The statements below should be executed only when a new load is created.
// Set a flag to make sure the level computation is triggered again
HasLevel::triggerLazyRecomputation();
}
