AspectJ :查找找到的 JoinPoint 的源方法代码/名称 [英] AspectJ : Find the source method code/name of a found JoinPoint
问题描述
我想检索调用特定方法的调用方法.
示例:
我考虑的方法:
public void methodA(int a, int b){...}
在测试方法和程序本身中调用
@Testpublic void testMethodA(...一些代码...objectClassA.methodA(x,y);)}B类{...公共无效方法B(){objectClassA.methodA(x,y);}}
我想以某种方式获得的是testMethodA和methodB的内部或至少是签名
要做到这一点,我认为 AspectJ 可以帮助我,所以我研究了一下,最后写了这个切入点 pointcut pcmethodA(): execution(* A.methodA(..) );
>
我的建议看起来像这样
before(): pcmethodA() {System.out.println("[AspectJ] 进入" + thisJoinPoint);System.out.println("[AspectJ] 签名" + thisJoinPoint.getSignature());System.out.println("[AspectJ] SourceLocation "+ thisJoinPoint.getSourceLocation());
但这会返回
[AspectJ] 进入执行(void com.example.somePackage.A.methodA(int, int)[AspectJ] 签名 com.example.somePackage.A.methodA(int, int)[AspectJ] SourceLocation A.java:25/** 文件中methodA的行号**/
这是我第一次使用 AspectJ ,有什么对象或方法可以检索我找到的连接点的调用方法吗?testMethodA 和 methodB
谢谢
让我先用几个示例类 + 驱动程序应用重新创建您的情况:
package de.scrum_master.app;公共类 Foo {public void methodA(int a, int b) {System.out.println("methodA:" + a + ", " + b);}}
package de.scrum_master.app;公共类 DummyTest {公共无效 testSomething() {新 Foo().methodA(33, 44);}}
package de.scrum_master.app;公共类应用{公共无效doSomething(){新 Foo().methodA(11, 22);}公共静态无效主(字符串 [] args){新应用程序().doSomething();new DummyTest().testSomething();}}
现在在您的方面尝试将 call()
与 thisEnclosureJoinPointStaticPart
结合使用:
package de.scrum_master.aspect;导入 de.scrum_master.app.Foo;公共方面 MyAspect {切入点 pcmethodA() : call(* Foo.methodA(..));之前():pcmethodA(){System.out.println("[AspectJ] 正在执行:" + thisJoinPoint);System.out.println("[AspectJ] 调用者:" + thisEnclosureJoinPointStaticPart);}}
运行Application
时的控制台日志:
[AspectJ] 执行:call(void de.scrum_master.app.Foo.methodA(int, int))[AspectJ] 调用者: execution(void de.scrum_master.app.Application.doSomething())方法A:11、22[AspectJ] 执行:call(void de.scrum_master.app.Foo.methodA(int, int))[AspectJ] 调用者: execution(void de.scrum_master.app.DummyTest.testSomething())方法A:33, 44
看到了吗?如果您只想确定调用方和被调用方,则无需处理堆栈跟踪.
I want to retrieve the calling method where a specific method is called.
Example :
The method I consider :
public void methodA(int a, int b){...}
is called in a test method and also in the program itself
@Test
public void testMethodA(
... some code...
objectClassA.methodA(x,y);
)}
Class B {
...
public void methodB(){
objectClassA.methodA(x,y);
}
}
What I want to obtain somehow is the inside or at least the signature of testMethodA and methodB
To do that I thought AspectJ could help me, so I looked into that and ended up writing this poincut pointcut pcmethodA(): execution(* A.methodA(..) );
and my advice looked something like this
before(): pcmethodA() {
System.out.println("[AspectJ] Entering " + thisJoinPoint);
System.out.println("[AspectJ] Signature " + thisJoinPoint.getSignature());
System.out.println("[AspectJ] SourceLocation "+ thisJoinPoint.getSourceLocation());
But this returns
[AspectJ] Entering execution(void com.example.somePackage.A.methodA(int, int)
[AspectJ] Signature com.example.somePackage.A.methodA(int, int)
[AspectJ] SourceLocation A.java:25 /** Line number of the methodA in the file **/
It is my first time using AspectJ , is there any object or way to retreive the calling method of my found joinpoints? testMethodA and methodB
Thanks
Let me recreate your situation first with a few sample classes + driver application:
package de.scrum_master.app;
public class Foo {
public void methodA(int a, int b) {
System.out.println("methodA: " + a + ", " + b);
}
}
package de.scrum_master.app;
public class DummyTest {
public void testSomething() {
new Foo().methodA(33, 44);
}
}
package de.scrum_master.app;
public class Application {
public void doSomething() {
new Foo().methodA(11, 22);
}
public static void main(String[] args) {
new Application().doSomething();
new DummyTest().testSomething();
}
}
Now try call()
in combination with thisEnclosingJoinPointStaticPart
in your aspect:
package de.scrum_master.aspect;
import de.scrum_master.app.Foo;
public aspect MyAspect {
pointcut pcmethodA() : call(* Foo.methodA(..));
before() : pcmethodA() {
System.out.println("[AspectJ] Executing: " + thisJoinPoint);
System.out.println("[AspectJ] Called by: " + thisEnclosingJoinPointStaticPart);
}
}
The console log when running Application
:
[AspectJ] Executing: call(void de.scrum_master.app.Foo.methodA(int, int))
[AspectJ] Called by: execution(void de.scrum_master.app.Application.doSomething())
methodA: 11, 22
[AspectJ] Executing: call(void de.scrum_master.app.Foo.methodA(int, int))
[AspectJ] Called by: execution(void de.scrum_master.app.DummyTest.testSomething())
methodA: 33, 44
See? No need to juggle stack traces if you just want to determine caller and callee.
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