#3393

Committed 25 Dec 2023 01:42AM UTC coverage: 86.665% (+0.05%) from 86.619%

Build # #3393

Build Type

Pull #2971

github

Committed by

web-flow

Commit Message

Merge 9b99f44b6 into 01225f508

Pull Request Pull Request #2971: docs: add dynamic sql example to @Select

Run Details

3498 of 4275 branches covered (0.0%)

9294 of 10724 relevant lines covered (86.67%)

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83.33

/src/main/java/org/apache/ibatis/scripting/xmltags/OgnlCache.java

/*
 *    Copyright 2009-2023 the original author or authors.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       https://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package org.apache.ibatis.scripting.xmltags;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import ognl.Ognl;
import ognl.OgnlContext;
import ognl.OgnlException;

import org.apache.ibatis.builder.BuilderException;

/**
 * Caches OGNL parsed expressions.
 *
 * @author Eduardo Macarron
 *
 * @see <a href='https://github.com/mybatis/old-google-code-issues/issues/342'>Issue 342</a>
 */
public final class OgnlCache {

  private static final OgnlMemberAccess MEMBER_ACCESS = new OgnlMemberAccess();
  private static final OgnlClassResolver CLASS_RESOLVER = new OgnlClassResolver();
  private static final Map<String, Object> expressionCache = new ConcurrentHashMap<>();

  private OgnlCache() {
    // Prevent Instantiation of Static Class
  }

  public static Object getValue(String expression, Object root) {
    try {
      OgnlContext context = Ognl.createDefaultContext(root, MEMBER_ACCESS, CLASS_RESOLVER, null);
      return Ognl.getValue(parseExpression(expression), context, root);
    } catch (OgnlException e) {
      throw new BuilderException("Error evaluating expression '" + expression + "'. Cause: " + e, e);
    }
  }

  private static Object parseExpression(String expression) throws OgnlException {
    Object node = expressionCache.get(expression);
    if (node == null) {
      node = Ognl.parseExpression(expression);
      expressionCache.put(expression, node);
    }
    return node;
  }

}

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.scripting.xmltags;
17
18	import java.util.Map;
19	import java.util.concurrent.ConcurrentHashMap;
20
21	import ognl.Ognl;
22	import ognl.OgnlContext;
23	import ognl.OgnlException;
24
25	import org.apache.ibatis.builder.BuilderException;
26
27	/**
28	* Caches OGNL parsed expressions.
29	*
30	* @author Eduardo Macarron
31	*
32	* @see <a href='https://github.com/mybatis/old-google-code-issues/issues/342'>Issue 342</a>
33	*/
34	public final class OgnlCache {
35
36	private static final OgnlMemberAccess MEMBER_ACCESS = new OgnlMemberAccess();	1✔
37	private static final OgnlClassResolver CLASS_RESOLVER = new OgnlClassResolver();	1✔
38	private static final Map<String, Object> expressionCache = new ConcurrentHashMap<>();	1✔
39
40	private OgnlCache() {
41	// Prevent Instantiation of Static Class
42	}
43
44	public static Object getValue(String expression, Object root) {
45	try {
46	OgnlContext context = Ognl.createDefaultContext(root, MEMBER_ACCESS, CLASS_RESOLVER, null);	1✔
47	return Ognl.getValue(parseExpression(expression), context, root);	1✔
48	} catch (OgnlException e) {	×
49	throw new BuilderException("Error evaluating expression '" + expression + "'. Cause: " + e, e);	×
50	}
51	}
52
53	private static Object parseExpression(String expression) throws OgnlException {
54	Object node = expressionCache.get(expression);	1✔
55	if (node == null) {	1✔
56	node = Ognl.parseExpression(expression);	1✔
57	expressionCache.put(expression, node);	1✔
58	}
59	return node;	1✔
60	}
61
62	}

mybatis / mybatis-3 / #3393

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