static MmsValue*
searchCacheForValue(MmsValueCache self, char* itemId, char* parentId)
{
MmsValueCacheEntry* cacheEntry;
MmsValue* value = NULL;
cacheEntry = (MmsValueCacheEntry*) Map_getEntry(self->map, parentId);
if (cacheEntry == NULL) {
char* parentItemId = getParentSubString(parentId);
if (parentItemId != NULL) {
value = searchCacheForValue(self, itemId, parentItemId);
}
}
else {
char* childId = getChildSubString(itemId, parentId);
MmsVariableSpecification* typeSpec = MmsDomain_getNamedVariable(self->domain, parentId);
value = MmsVariableSpecification_getChildValue(typeSpec, cacheEntry->value, childId);
}
return value;
}
MmsValue*
MmsValueCache_lookupValue(MmsValueCache self, char* itemId)
{
// get value for first matching key substring!
// Then iterate the value for the exact value.
MmsValue* value = NULL;
MmsValueCacheEntry* cacheEntry;
cacheEntry = (MmsValueCacheEntry*) Map_getEntry(self->map, itemId);
if (cacheEntry == NULL) {
char* itemIdCopy = copyString(itemId);
char* parentItemId = getParentSubString(itemIdCopy);
if (parentItemId != NULL) {
value = searchCacheForValue(self, itemId, parentItemId);
}
GLOBAL_FREEMEM(itemIdCopy);
}
if (cacheEntry != NULL)
return cacheEntry->value;
else
return value;
}
void
MmsServer_insertIntoCache(MmsServer self, MmsDomain* domain, char* itemId, MmsValue* value)
{
MmsValueCache cache = Map_getEntry(self->valueCaches, domain);
if (cache != NULL) {
MmsValueCache_insertValue(cache, itemId, value);
}
}
MmsValue*
MmsServer_getValueFromCache(MmsServer self, MmsDomain* domain, char* itemId)
{
MmsValueCache cache = Map_getEntry(self->valueCaches, domain);
if (cache != NULL) {
return MmsValueCache_lookupValue(cache, itemId);
}
return NULL;
}