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1   /*
2    *    Copyright 2009-2023 the original author or authors.
3    *
4    *    Licensed under the Apache License, Version 2.0 (the "License");
5    *    you may not use this file except in compliance with the License.
6    *    You may obtain a copy of the License at
7    *
8    *       https://www.apache.org/licenses/LICENSE-2.0
9    *
10   *    Unless required by applicable law or agreed to in writing, software
11   *    distributed under the License is distributed on an "AS IS" BASIS,
12   *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *    See the License for the specific language governing permissions and
14   *    limitations under the License.
15   */
16  package org.apache.ibatis.reflection;
17  
18  import java.util.concurrent.ConcurrentHashMap;
19  import java.util.concurrent.ConcurrentMap;
20  
21  import org.apache.ibatis.util.MapUtil;
22  
23  public class DefaultReflectorFactory implements ReflectorFactory {
24    private boolean classCacheEnabled = true;
25    private final ConcurrentMap<Class<?>, Reflector> reflectorMap = new ConcurrentHashMap<>();
26  
27    public DefaultReflectorFactory() {
28    }
29  
30    @Override
31    public boolean isClassCacheEnabled() {
32      return classCacheEnabled;
33    }
34  
35    @Override
36    public void setClassCacheEnabled(boolean classCacheEnabled) {
37      this.classCacheEnabled = classCacheEnabled;
38    }
39  
40    @Override
41    public Reflector findForClass(Class<?> type) {
42      if (classCacheEnabled) {
43        // synchronized (type) removed see issue #461
44        return MapUtil.computeIfAbsent(reflectorMap, type, Reflector::new);
45      }
46      return new Reflector(type);
47    }
48  
49  }