/**
* Looks up an existing {@link ResourceItem} by {@link ResourceType} and name. This ignores inline
* resources.
*
* @param type the Resource Type.
* @param name the Resource name.
* @return the existing ResourceItem or null if no match was found.
*/
@Nullable
private ResourceItem findDeclaredResourceItem(@NonNull ResourceType type, @NonNull String name) {
Map<String, ResourceItem> map = mResourceMap.get(type);
if (map != null) {
ResourceItem resourceItem = map.get(name);
if (resourceItem != null && !resourceItem.isDeclaredInline()) {
return resourceItem;
}
}
return null;
}
/**
* Returns a {@link ResourceItem} matching the given {@link ResourceType} and name. If none exist,
* it creates one.
*
* @param type the resource type
* @param name the name of the resource.
* @return A resource item matching the type and name.
*/
@NonNull
public ResourceItem getResourceItem(@NonNull ResourceType type, @NonNull String name) {
ensureInitialized();
// looking for an existing ResourceItem with this type and name
ResourceItem item = findDeclaredResourceItem(type, name);
// create one if there isn't one already, or if the existing one is inlined, since
// clearly we need a non inlined one (the inline one is removed too)
if (item == null || item.isDeclaredInline()) {
ResourceItem oldItem = item != null && item.isDeclaredInline() ? item : null;
item = createResourceItem(name);
Map<String, ResourceItem> map = mResourceMap.get(type);
if (map == null) {
if (isFrameworkRepository()) {
// Pick initial size for the maps. Also change the load factor to 1.0
// to avoid rehashing the whole table when we (as expected) get near
// the known rough size of each resource type map.
int size;
switch (type) {
// Based on counts in API 16. Going back to API 10, the counts
// are roughly 25-50% smaller (e.g. compared to the top 5 types below
// the fractions are 1107 vs 1734, 831 vs 1508, 895 vs 1255,
// 733 vs 1064 and 171 vs 783.
case PUBLIC:
size = 1734;
break;
case DRAWABLE:
size = 1508;
break;
case STRING:
size = 1255;
break;
case ATTR:
size = 1064;
break;
case STYLE:
size = 783;
break;
case ID:
size = 347;
break;
case DECLARE_STYLEABLE:
size = 210;
break;
case LAYOUT:
size = 187;
break;
case COLOR:
size = 120;
break;
case ANIM:
size = 95;
break;
case DIMEN:
size = 81;
break;
case BOOL:
size = 54;
break;
case INTEGER:
size = 52;
break;
case ARRAY:
size = 51;
break;
case PLURALS:
size = 20;
break;
case XML:
size = 14;
break;
case INTERPOLATOR:
size = 13;
break;
case ANIMATOR:
size = 8;
break;
case RAW:
size = 4;
break;
case MENU:
size = 2;
break;
case MIPMAP:
size = 2;
break;
case FRACTION:
size = 1;
break;
default:
size = 2;
}
map = new HashMap<String, ResourceItem>(size, 1.0f);
} else {
map = new HashMap<String, ResourceItem>();
}
mResourceMap.put(type, map);
}
map.put(item.getName(), item);
if (oldItem != null) {
map.remove(oldItem.getName());
}
}
return item;
}