com.rapatao.vertx.eventbus.proxyhelper.ProxyCreator Maven / Gradle / Ivy
package com.rapatao.vertx.eventbus.proxyhelper;
import io.vertx.core.Handler;
import io.vertx.core.eventbus.EventBus;
import lombok.AccessLevel;
import lombok.NonNull;
import lombok.RequiredArgsConstructor;
import java.lang.reflect.Proxy;
/**
* Proxy Service Creator.
*
* This class is responsibly to create the proxy that wrap the Vertx EventBus usage.
*
* Created by rapatao on 15/09/16.
*/
@RequiredArgsConstructor(access = AccessLevel.PRIVATE)
public class ProxyCreator {
private final EventBus eventBus;
private String prefix = "";
/**
* Create a ProxyCreator using an {@link EventBus}.
*
* @param eventBus the Vertx EventBus.
* @return The ProxyCreator instance.
*/
public static ProxyCreator toEventBus(final EventBus eventBus) {
return new ProxyCreator(eventBus);
}
/**
* Defines the prefix for the registered consumers.
*
* @param prefix the prefix to be used in service address. Default is an empty string.
* @return the ProxyCreator instance.
*/
public ProxyCreator withPrefix(final String prefix) {
this.prefix = prefix;
return this;
}
/**
* Create a proxy instance that use {@link EventBus#send(String, Object, Handler)}.
*
* @param service The service interface.
* @param The service type.
* @return The proxy service instance.
*/
public T asSend(@NonNull final Class service) {
final Class[] classes = new Class[]{service};
return (T) Proxy.newProxyInstance(ClassLoader.getSystemClassLoader(), classes, new EventBusSendInvocationHandler(eventBus, prefix));
}
/**
* Create a proxy instance that use {@link EventBus#publish(String, Object)}
*
* @param service The service interface.
* @param The service type.
* @return The proxy service instance.
*/
public T asPublish(@NonNull final Class service) {
final Class[] classes = new Class[]{service};
return (T) Proxy.newProxyInstance(ClassLoader.getSystemClassLoader(), classes, new EventBusPublishInvocationHandler(eventBus, prefix));
}
}