package org.opendaylight.controller.cluster.datastore.node.utils;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
import org.opendaylight.yangtools.yang.common.QName;
-import java.util.HashMap;
-import java.util.Map;
-
public class QNameFactory {
- private static final Map<String, QName> cache = new HashMap<>();
- public static QName create(String name){
- QName value = cache.get(name);
- if(value == null){
- synchronized (cache){
- value = cache.get(name);
- if(value == null) {
- value = QName.create(name);
- cache.put(name, value);
+ private static final int MAX_QNAME_CACHE_SIZE = 10000;
+
+ private static LoadingCache<String, QName> cache = CacheBuilder.newBuilder()
+ .maximumSize(MAX_QNAME_CACHE_SIZE)
+ .softValues()
+ .build(
+ new CacheLoader<String, QName>() {
+ public QName load(String key) {
+ return QName.create(key);
}
}
- }
- return value;
+ );
+
+
+ public static QName create(String name){
+ return cache.getUnchecked(name);
}
}