Erwan

- cache system for Deck Meta Data. let's improve it as needs arise

projects/mtg/src/DeckMetaData.cpp

@@ -0,0 +1,45 @@
+#include "../include/DeckMetaData.h"
+#include "../include/MTGDeck.h"
+#include "../include/config.h"
+//Possible improvements:
+//Merge this with DeckStats
+//Have this class handle all the Meta Data rather than relying on MTGDeck. Then MTGDeck would have a MetaData object...
+
+
+DeckMetaDataList * DeckMetaDataList::decksMetaData = NEW DeckMetaDataList();
+
+DeckMetaData::DeckMetaData(string filename){
+  load(filename);
+}
+void DeckMetaData::load(string filename){
+  MTGDeck * mtgd = NEW MTGDeck(filename.c_str(),NULL,1);
+  name = mtgd->meta_name;
+  desc = mtgd->meta_desc;
+  delete(mtgd);
+}
+
+DeckMetaDataList::~DeckMetaDataList(){
+  for(map<string,DeckMetaData *>::iterator it = values.begin(); it != values.end(); ++it){
+    SAFE_DELETE(it->second);
+  }
+  values.clear();
+}
+
+void DeckMetaDataList::invalidate(string filename){
+   map<string,DeckMetaData *>::iterator it = values.find(filename);
+   if (it !=values.end()){
+     SAFE_DELETE(it->second);
+     values.erase(it);
+   }
+}
+
+DeckMetaData * DeckMetaDataList::get(string filename){
+  map<string,DeckMetaData *>::iterator it = values.find(filename);
+  if (it ==values.end()){
+    if (fileExists(filename.c_str())) {
+      values[filename] = NEW DeckMetaData(filename);
+    }
+  }
+
+   return values[filename]; //this creates a NULL entry if the file does not exist
+}