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/*
* Copyright 2013 the original author or 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 org.springframework.yarn.event;
import org.apache.hadoop.yarn.api.records.Container;
import org.apache.hadoop.yarn.api.records.ContainerStatus;
/**
* Interface for publishing Yarn based application events.
*
* @author Janne Valkealahti
*
*/
public interface YarnEventPublisher {
/**
* Publish an application event containing information
* about the allocated {@link Container}.
*
* @param source the component that published the event (never {@code null})
* @param container the Container
*/
void publishContainerAllocated(Object source, Container container);
/**
* Publish an application event containing information
* about the launched {@link Container}.
*
* @param source the component that published the event (never {@code null})
* @param container the Container
*/
void publishContainerLaunched(Object source, Container container);
/**
* Publish an application event containing information
* about the failed {@link Container} launch request.
*
* @param source the component that published the event (never {@code null})
* @param container the Container
*/
void publishContainerLaunchRequestFailed(Object source, Container container);
/**
* Publish an application event containing information
* about the completed {@link ContainerStatus}.
*
* @param source the component that published the event (never {@code null})
* @param status the Container status
*/
void publishContainerCompleted(Object source, ContainerStatus status);
/**
* Publish a general application event of type {@link AbstractYarnEvent}.
*
* @param event the event
*/
void publishEvent(AbstractYarnEvent event);
}