import net.bytebuddy.ByteBuddy;
import net.bytebuddy.implementation.MethodDelegation;
import net.bytebuddy.matcher.ElementMatchers;
public class DynamicProxyExample {
public static void main(String[] args) throws IllegalAccessException, InstantiationException {
Class<?> proxyClass = new ByteBuddy()
.subclass(Object.class)
.method(ElementMatchers.named("toString"))
.intercept(MethodDelegation.to(LoggerInterceptor.class))
.make()
.load(DynamicProxyExample.class.getClassLoader())
.getLoaded();
Object proxy = proxyClass.newInstance();
System.out.println(proxy.toString());
}
}
class LoggerInterceptor {
public static String toString() {
System.out.println("Proxy method interception");
return "";
}
}
import net.bytebuddy.ByteBuddy;
import net.bytebuddy.description.annotation.AnnotationDescription;
import net.bytebuddy.description.method.MethodDescription;
import net.bytebuddy.description.type.TypeDescription;
import net.bytebuddy.dynamic.DynamicType;
import net.bytebuddy.dynamic.scaffold.subclass.ConstructorStrategy;
import net.bytebuddy.implementation.FixedValue;
import net.bytebuddy.matcher.ElementMatchers;
public class DynamicTestGeneration {
public static void main(String[] args) throws IllegalAccessException, InstantiationException {
DynamicType.Unloaded<?> dynamicType = new ByteBuddy()
.subclass(Object.class)
.name("MyTestClass")
.annotateType(AnnotationDescription.Builder.ofType(Deprecated.class).build())
.constructor(ConstructorStrategy.Default.IMITATE_SUPER_TYPE)
.method(ElementMatchers.named("toString"))
.intercept(FixedValue.value("Hello, Byte Buddy!"))
.make();
Class<?> testClass = dynamicType.load(DynamicTestGeneration.class.getClassLoader())
.getLoaded();
Object testObject = testClass.newInstance();
System.out.println(testObject.toString());
}
}
