/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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.elasticsearch.tasks;
/**
* An interface for a request that can be used to register a task manager task
*/
public interface TaskAwareRequest {
/**
* Set a reference to task that caused this task to be run.
*/
default void setParentTask(String parentTaskNode, long parentTaskId) {
setParentTask(new TaskId(parentTaskNode, parentTaskId));
}
/**
* Set a reference to task that created this request.
*/
void setParentTask(TaskId taskId);
/**
* Get a reference to the task that created this request. Implementers should default to
* {@link TaskId#EMPTY_TASK_ID}, meaning "there is no parent".
*/
TaskId getParentTask();
/**
* Returns the task object that should be used to keep track of the processing of the request.
*
* A request can override this method and return null to avoid being tracked by the task
* manager.
*/
default Task createTask(long id, String type, String action, TaskId parentTaskId) {
return new Task(id, type, action, getDescription(), parentTaskId);
}
/**
* Returns optional description of the request to be displayed by the task manager
*/
default String getDescription() {
return "";
}
}