1 /**
2 * Copyright 2009-2015 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 * http://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.scripting.xmltags;
17
18 import java.util.HashMap;
19 import java.util.Map;
20
21 import ognl.ClassResolver;
22
23 import org.apache.ibatis.io.Resources;
24
25 /**
26 * Custom ognl {@code ClassResolver} which behaves same like ognl's
27 * {@code DefaultClassResolver}. But uses the {@code Resources}
28 * utility class to find the target class instead of {@code Class#forName(String)}.
29 *
30 * @see https://github.com/mybatis/mybatis-3/issues/161
31 *
32 * @author Daniel Guggi
33 *
34 */
35 public class OgnlClassResolver implements ClassResolver {
36
37 private Map<String, Class<?>> classes = new HashMap<String, Class<?>>(101);
38
39 @Override
40 public Class classForName(String className, Map context) throws ClassNotFoundException {
41 Class<?> result = null;
42 if ((result = classes.get(className)) == null) {
43 try {
44 result = Resources.classForName(className);
45 } catch (ClassNotFoundException e1) {
46 if (className.indexOf('.') == -1) {
47 result = Resources.classForName("java.lang." + className);
48 classes.put("java.lang." + className, result);
49 }
50 }
51 classes.put(className, result);
52 }
53 return result;
54 }
55
56 }