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package testing;
import java.util.HashMap;
import java.util.Map;
public abstract aspect AbstractCache<Key,Value> {
public abstract pointcut cachePoint(Key key);
private Map<Object,Object> cache = new HashMap<Object,Object>();
private Integer hitCount = 0;
private Integer missCount = 0;
Value around(Key key) : cachePoint(key){
Value value = get(key);
if(value == null){
value = proceed(key);
put(key,value);
missCount++;
} else {
hitCount++;
}
return value;
}
@SuppressWarnings("unchecked")
private Value get(Key key){
return (Value) cache.get(key);
}
private void put(Key key, Value value) {
cache.put(key, value);
}
public Integer getHitCount() {
return hitCount;
}
public Integer getMissCount() {
return missCount;
}
}
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