2596

Committed 02 Jan 2025 08:49PM UTC coverage: 87.522% (-0.004%) from 87.526%

Build # 2596

Build Type

push

github

Committed by

web-flow

Commit Message

Merge pull request #3372 from harawata/drop-java8-fallback

Drop java8 fallback

Run Details

3633 of 4401 branches covered (82.55%)

14 of 16 new or added lines in 9 files covered. (87.5%)

9 existing lines in 2 files now uncovered.

9574 of 10939 relevant lines covered (87.52%)

0.88 hits per line

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88.57

/src/main/java/org/apache/ibatis/binding/MapperProxy.java

/*
 *    Copyright 2009-2025 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.binding;

import java.io.Serializable;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodHandles.Lookup;
import java.lang.invoke.MethodType;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Map;

import org.apache.ibatis.reflection.ExceptionUtil;
import org.apache.ibatis.session.SqlSession;

/**
 * @author Clinton Begin
 * @author Eduardo Macarron
 */
public class MapperProxy<T> implements InvocationHandler, Serializable {

  private static final long serialVersionUID = -4724728412955527868L;
  private static final Method privateLookupInMethod;
  private final SqlSession sqlSession;
  private final Class<T> mapperInterface;
  private final Map<Method, MapperMethodInvoker> methodCache;

  public MapperProxy(SqlSession sqlSession, Class<T> mapperInterface, Map<Method, MapperMethodInvoker> methodCache) {
    this.sqlSession = sqlSession;
    this.mapperInterface = mapperInterface;
    this.methodCache = methodCache;
  }

  static {
    try {
      privateLookupInMethod = MethodHandles.class.getMethod("privateLookupIn", Class.class, MethodHandles.Lookup.class);
    } catch (NoSuchMethodException e) {
      throw new IllegalStateException(
          "There is no 'privateLookupIn(Class, Lookup)' method in java.lang.invoke.MethodHandles.", e);
    }
  }

  @Override
  public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
    try {
      if (Object.class.equals(method.getDeclaringClass())) {
        return method.invoke(this, args);
      }
      return cachedInvoker(method).invoke(proxy, method, args, sqlSession);
    } catch (Throwable t) {
      throw ExceptionUtil.unwrapThrowable(t);
    }
  }

  private MapperMethodInvoker cachedInvoker(Method method) throws Throwable {
    try {
      return methodCache.computeIfAbsent(method, m -> {
        if (!m.isDefault()) {
          return new PlainMethodInvoker(new MapperMethod(mapperInterface, method, sqlSession.getConfiguration()));
        }
        try {
          return new DefaultMethodInvoker(getMethodHandleJava9(method));
        } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
          throw new RuntimeException(e);
        }
      });
    } catch (RuntimeException re) {
      Throwable cause = re.getCause();
      throw cause == null ? re : cause;
    }
  }

  private MethodHandle getMethodHandleJava9(Method method)
      throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {
    final Class<?> declaringClass = method.getDeclaringClass();
    return ((Lookup) privateLookupInMethod.invoke(null, declaringClass, MethodHandles.lookup())).findSpecial(
        declaringClass, method.getName(), MethodType.methodType(method.getReturnType(), method.getParameterTypes()),
        declaringClass);
  }

  interface MapperMethodInvoker {
    Object invoke(Object proxy, Method method, Object[] args, SqlSession sqlSession) throws Throwable;
  }

  private static class PlainMethodInvoker implements MapperMethodInvoker {
    private final MapperMethod mapperMethod;

    public PlainMethodInvoker(MapperMethod mapperMethod) {
      this.mapperMethod = mapperMethod;
    }

    @Override
    public Object invoke(Object proxy, Method method, Object[] args, SqlSession sqlSession) throws Throwable {
      return mapperMethod.execute(sqlSession, args);
    }
  }

  private static class DefaultMethodInvoker implements MapperMethodInvoker {
    private final MethodHandle methodHandle;

    public DefaultMethodInvoker(MethodHandle methodHandle) {
      this.methodHandle = methodHandle;
    }

    @Override
    public Object invoke(Object proxy, Method method, Object[] args, SqlSession sqlSession) throws Throwable {
      return methodHandle.bindTo(proxy).invokeWithArguments(args);
    }
  }
}

1	/*
2	* Copyright 2009-2025 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.binding;
17
18	import java.io.Serializable;
19	import java.lang.invoke.MethodHandle;
20	import java.lang.invoke.MethodHandles;
21	import java.lang.invoke.MethodHandles.Lookup;
22	import java.lang.invoke.MethodType;
23	import java.lang.reflect.InvocationHandler;
24	import java.lang.reflect.InvocationTargetException;
25	import java.lang.reflect.Method;
26	import java.util.Map;
27
28	import org.apache.ibatis.reflection.ExceptionUtil;
29	import org.apache.ibatis.session.SqlSession;
30
31	/**
32	* @author Clinton Begin
33	* @author Eduardo Macarron
34	*/
35	public class MapperProxy<T> implements InvocationHandler, Serializable {
36
37	private static final long serialVersionUID = -4724728412955527868L;
38	private static final Method privateLookupInMethod;
39	private final SqlSession sqlSession;
40	private final Class<T> mapperInterface;
41	private final Map<Method, MapperMethodInvoker> methodCache;
42
43	public MapperProxy(SqlSession sqlSession, Class<T> mapperInterface, Map<Method, MapperMethodInvoker> methodCache) {	1✔
44	this.sqlSession = sqlSession;	1✔
45	this.mapperInterface = mapperInterface;	1✔
46	this.methodCache = methodCache;	1✔
47	}	1✔
48
49	static {
50	try {
51	privateLookupInMethod = MethodHandles.class.getMethod("privateLookupIn", Class.class, MethodHandles.Lookup.class);	1✔
52	} catch (NoSuchMethodException e) {	×
NEW 53	throw new IllegalStateException(	×
54	"There is no 'privateLookupIn(Class, Lookup)' method in java.lang.invoke.MethodHandles.", e);
55	}	1✔
56	}	1✔
57
58	@Override
59	public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
60	try {
61	if (Object.class.equals(method.getDeclaringClass())) {	1✔
62	return method.invoke(this, args);	1✔
63	}
64	return cachedInvoker(method).invoke(proxy, method, args, sqlSession);	1✔
65	} catch (Throwable t) {	1✔
66	throw ExceptionUtil.unwrapThrowable(t);	1✔
67	}
68	}
69
70	private MapperMethodInvoker cachedInvoker(Method method) throws Throwable {
71	try {
72	return methodCache.computeIfAbsent(method, m -> {	1✔
73	if (!m.isDefault()) {	1✔
74	return new PlainMethodInvoker(new MapperMethod(mapperInterface, method, sqlSession.getConfiguration()));	1✔
75	}
76	try {
77	return new DefaultMethodInvoker(getMethodHandleJava9(method));	1✔
NEW 78	} catch (NoSuchMethodException \| IllegalAccessException \| InvocationTargetException e) {	×
UNCOV 79	throw new RuntimeException(e);	×
80	}
81	});
82	} catch (RuntimeException re) {	1✔
83	Throwable cause = re.getCause();	1✔
84	throw cause == null ? re : cause;	1!
85	}
86	}
87
88	private MethodHandle getMethodHandleJava9(Method method)
89	throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {
90	final Class<?> declaringClass = method.getDeclaringClass();	1✔
91	return ((Lookup) privateLookupInMethod.invoke(null, declaringClass, MethodHandles.lookup())).findSpecial(	1✔
92	declaringClass, method.getName(), MethodType.methodType(method.getReturnType(), method.getParameterTypes()),	1✔
93	declaringClass);
94	}
95
96	interface MapperMethodInvoker {
97	Object invoke(Object proxy, Method method, Object[] args, SqlSession sqlSession) throws Throwable;
98	}
99
100	private static class PlainMethodInvoker implements MapperMethodInvoker {
101	private final MapperMethod mapperMethod;
102
103	public PlainMethodInvoker(MapperMethod mapperMethod) {	1✔
104	this.mapperMethod = mapperMethod;	1✔
105	}	1✔
106
107	@Override
108	public Object invoke(Object proxy, Method method, Object[] args, SqlSession sqlSession) throws Throwable {
109	return mapperMethod.execute(sqlSession, args);	1✔
110	}
111	}
112
113	private static class DefaultMethodInvoker implements MapperMethodInvoker {
114	private final MethodHandle methodHandle;
115
116	public DefaultMethodInvoker(MethodHandle methodHandle) {	1✔
117	this.methodHandle = methodHandle;	1✔
118	}	1✔
119
120	@Override
121	public Object invoke(Object proxy, Method method, Object[] args, SqlSession sqlSession) throws Throwable {
122	return methodHandle.bindTo(proxy).invokeWithArguments(args);	1✔
123	}
124	}
125	}

mybatis / mybatis-3 / 2596

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