// @Deprecated
// @Test
public void interceptor()
throws NotFoundException, CannotCompileException, IllegalAccessException,
InstantiationException, IOException, ClassNotFoundException, NoSuchMethodException {
AroundInterceptor aroundInterceptor =
new AroundInterceptor() {
@Override
public void before(Object target, Object[] args) {
logger.info("BEFORE target:" + target + " args:" + Arrays.toString(args));
}
@Override
public void after(Object target, Object[] args, Object result, Throwable throwable) {
logger.info(
"AFTER target: "
+ target
+ " args:"
+ Arrays.toString(args)
+ " result:"
+ result
+ " throwable:"
+ throwable);
}
};
int interceptorId = INTERCEPTOR_REGISTRY_ADAPTOR.addInterceptor(aroundInterceptor);
final ClassPool classPool = new ClassPool(true);
CtClass throwable = classPool.get(Throwable.class.getName());
CtClass ctClass = classPool.get("com.baidu.oped.apm.profiler.interceptor.JavaAssistTestObject");
final CtMethod hello = ctClass.getMethod("hello", "(Ljava/lang/String;)Ljava/lang/String;");
logger.debug("longName:{}", hello.getLongName());
logger.debug("name:{}", hello.getName());
String interceptorClassName = AroundInterceptor.class.getName();
CtClass interceptor = classPool.get(interceptorClassName);
hello.addLocalVariable("interceptor", interceptor);
CtClass object = classPool.get(Object.class.getName());
hello.addLocalVariable("result", object);
// hello.insertBefore("{ System.out.println(\"BEFORE\"); }");
hello.insertBefore(
"{"
+ "interceptor = ("
+ interceptorClassName
+ ") "
+ InterceptorRegistry.class.getName()
+ ".getSimpleInterceptor("
+ interceptorId
+ ");"
+ "interceptor.before(this, $args);"
+ "}");
// hello.addCatch("{" +
//// " interceptor.after(ctx);"+
//// " AroundInterceptor a = (AroundInterceptor) " +
// InterceptorRegistry.class.getName() + ".getStaticInterceptor(\"a\");"+
// " throw $e;" +
// "}", throwable);
// hello.insertAfter("{" +
// "interceptor.after(this, $args, ($w)$_, null); " +
// "}");
// hello.setBody(generatedAroundInterceptor("TestObject", "hello"));
// hello.setBody("{ System.out.println(\"ddd\"); }", ClassMap map );
// hello.insertBefore(" System.out.println(\" BEFORE + \");");
// hello.insertAfter(" System.out.println($_);");
// hello.insertAfter(" System.out.println($r);");
// hello.insertAfter(" System.out.println($w);");
// hello.insertAfter(" System.out.println($sig);");
// hello.insertAfter(" System.out.println($type);");
// hello.insertAfter(" System.out.println($class);");
// hello.instrument(new ExprEditor() {
// public void edit(MethodCall m)
// throws CannotCompileException
// {
// try {
// System.out.println("method call" + m.getMethod().getName());
// } catch (NotFoundException e) {
// e.printStackTrace(); //To change body of catch statement use File | Settings
// | File Templates.
// }
// String code = generatedAroundInterceptor("TestObject", "hello");
// m.replace(code);
// }
// });
// hello.addCatch("System.out.println(\"catch\"); throw $e;", throwable);
// hello.setName("__hello");
// CtMethod method = CtNewMethod.make("public void hello() { try {__hello(); }
// catch(Throwable th){throw th;}}", ctClass);
// CtMethod method = CtNewMethod.make("public void hello() {
// System.out.println(\"ddd\"); } catch(Throwable th){throw th;}}", ctClass);
// ctClass.addMethod(method);
// ctClass.freeze();
// ctClass.writeFile("./debug");
// ctClass.debugWriteFile("./debug");
Loader loader = LoaderUtils.createLoader(classPool);
loader.delegateLoadingOf("com.baidu.oped.apm.bootstrap.");
Class aClass = loader.loadClass(ctClass.getName());
Object testObject = aClass.newInstance();
Method helloMethod = testObject.getClass().getDeclaredMethod("hello", String.class);
try {
helloMethod.invoke(testObject, "hello~~");
} catch (Exception e) {
Assert.fail(e.getMessage());
}
// o.hello();
}
