decembrist-revolt / spring-easy-proxy

Spring Easy Proxy
Library gives an ability to make spring interface proxy beans in easy way (Like spring data repositories do)

Getting started
Maven:

<dependency>
    <groupId>org.decembrist.spring</groupId>
    <artifactId>spring-easy-proxy</artifactId>
    <version>1.0.0</version>
</dependency>

Gradle:

implementation "org.decembrist.spring:spring-easy-proxy:1.0.0"

Example:
@EasyProxy

//1. Define interceptor bean (any org.aopalliance.aop.Advice class)
@Component
public class Interceptor implements MethodInterceptor {
    @Override
    public Object invoke(MethodInvocation invocation) throws Throwable {
        // do some staff
        return invocation.proceed();
    }
}

//2. Use @EasyProxy annotation to create singleton proxy bean
@EasyProxy({Interceptor.class}) //Interceptor array here
public interface ProxyInterface {
    String proxyMethod(String param);
}

@Component
class AnotherClass {
    //3. ProxyInterface above will be injected with Interceptor.class handler
    @Autowired private ProxyInterface proxy;
}

@EasyProxyInterface

//1. Define interceptor bean (any org.aopalliance.aop.Advice class)
@Component
public class Interceptor implements MethodInterceptor {
    @Override
    public Object invoke(MethodInvocation invocation) throws Throwable {
        // do some staff
        return invocation.proceed();
    }
}

//2. Use @EasyProxyInterface annotation to create proxy marker
@EasyProxyInterface({Interceptor.class}) //Interceptor array here
public interface ProxyInterfaceMarker {
    String proxyMethod(String param);
}

//3. Extend marker interface to create singleton proxy bean
public interface MarkedProxyInterface extends ProxyInterfaceMarker {
    String proxyMethod(String param);
}

@Component
class AnotherClass {
    //4. MarkedProxyInterface above will be injected with Interceptor.class handler
    @Autowired private MarkedProxyInterface proxy;
}

Interceptor injection:

@Component
public class TestInterceptor1 implements MethodInterceptor, ApplicationContextAware {

    private ApplicationContext applicationContext;

    //The only way to use another beans from interceptor for now
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.applicationContext = applicationContext;
    }

Checked:

1. Works for kotlin
2. @EasyProxyInterface interfaces work as .jar spring boot library component
3. Tested with graalvm-ce-java11-21.0.0.2
4. Tested with java 8

Properties:

#disable easy proxies
spring.easy-proxy=false