com.google.common.eventbus.SubscriberExceptionContext Maven / Gradle / Ivy
/*
* Copyright (C) 2013 The Guava Authors
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.common.eventbus;
import static com.google.common.base.Preconditions.checkNotNull;
import java.lang.reflect.Method;
/**
* Context for an exception thrown by a subscriber.
*
* @since 16.0
*/
public class SubscriberExceptionContext {
private final EventBus eventBus;
private final Object event;
private final Object subscriber;
private final Method subscriberMethod;
/**
* @param eventBus The {@link EventBus} that handled the event and the subscriber. Useful for
* broadcasting a a new event based on the error.
* @param event The event object that caused the subscriber to throw.
* @param subscriber The source subscriber context.
* @param subscriberMethod the subscribed method.
*/
SubscriberExceptionContext(
EventBus eventBus, Object event, Object subscriber, Method subscriberMethod) {
this.eventBus = checkNotNull(eventBus);
this.event = checkNotNull(event);
this.subscriber = checkNotNull(subscriber);
this.subscriberMethod = checkNotNull(subscriberMethod);
}
/**
* @return The {@link EventBus} that handled the event and the subscriber. Useful for broadcasting
* a a new event based on the error.
*/
public EventBus getEventBus() {
return eventBus;
}
/** @return The event object that caused the subscriber to throw. */
public Object getEvent() {
return event;
}
/** @return The object context that the subscriber was called on. */
public Object getSubscriber() {
return subscriber;
}
/** @return The subscribed method that threw the exception. */
public Method getSubscriberMethod() {
return subscriberMethod;
}
}