| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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.apache.hadoop.yarn.api.records; |
| |
| import org.apache.hadoop.classification.InterfaceAudience.Private; |
| import org.apache.hadoop.classification.InterfaceAudience.Public; |
| import org.apache.hadoop.classification.InterfaceStability.Stable; |
| import org.apache.hadoop.classification.InterfaceStability.Unstable; |
| import org.apache.hadoop.yarn.util.Records; |
| |
| import java.util.List; |
| |
| /** |
| * {@code ReservationAllocationState} represents the reservation that is |
| * made by a user. |
| * <p> |
| * It includes: |
| * <ul> |
| * <li>Duration of the reservation.</li> |
| * <li>Acceptance time of the duration.</li> |
| * <li> |
| * List of {@link ResourceAllocationRequest}, which includes the time |
| * interval, and capability of the allocation. |
| * {@code ResourceAllocationRequest} represents an allocation |
| * made for a reservation for the current state of the queue. This can be |
| * changed for reasons such as re-planning, but will always be subject to |
| * the constraints of the user contract as described by |
| * {@link ReservationDefinition} |
| * </li> |
| * <li>{@link ReservationId} of the reservation.</li> |
| * <li>{@link ReservationDefinition} used to make the reservation.</li> |
| * </ul> |
| * |
| * @see ResourceAllocationRequest |
| * @see ReservationId |
| * @see ReservationDefinition |
| */ |
| @Public |
| @Stable |
| public abstract class ReservationAllocationState { |
| |
| /** |
| * |
| * @param acceptanceTime The acceptance time of the reservation. |
| * @param user The username of the user who made the reservation. |
| * @param resourceAllocations List of {@link ResourceAllocationRequest} |
| * representing the current state of the |
| * reservation resource allocations. This is |
| * subject to change in the event of re-planning. |
| * @param reservationId {@link ReservationId } of the reservation being |
| * listed. |
| * @param reservationDefinition {@link ReservationDefinition} used to make |
| * the reservation. |
| * @return {@code ReservationAllocationState} that represents the state of |
| * the reservation. |
| */ |
| @Public |
| @Stable |
| public static ReservationAllocationState newInstance(long acceptanceTime, |
| String user, List<ResourceAllocationRequest> resourceAllocations, |
| ReservationId reservationId, |
| ReservationDefinition reservationDefinition) { |
| ReservationAllocationState ri = Records.newRecord( |
| ReservationAllocationState.class); |
| ri.setAcceptanceTime(acceptanceTime); |
| ri.setUser(user); |
| ri.setResourceAllocationRequests(resourceAllocations); |
| ri.setReservationId(reservationId); |
| ri.setReservationDefinition(reservationDefinition); |
| return ri; |
| } |
| |
| /** |
| * Get the acceptance time of the reservation. |
| * |
| * @return the time that the reservation was accepted. |
| */ |
| @Public |
| @Unstable |
| public abstract long getAcceptanceTime(); |
| |
| /** |
| * Set the time that the reservation was accepted. |
| * |
| * @param acceptanceTime The acceptance time of the reservation. |
| */ |
| @Private |
| @Unstable |
| public abstract void setAcceptanceTime(long acceptanceTime); |
| |
| /** |
| * Get the user who made the reservation. |
| * |
| * @return the name of the user who made the reservation. |
| */ |
| @Public |
| @Unstable |
| public abstract String getUser(); |
| |
| /** |
| * Set the user who made the reservation. |
| * |
| * @param user The username of the user who made the reservation. |
| */ |
| @Private |
| @Unstable |
| public abstract void setUser(String user); |
| |
| /** |
| * Get the Resource allocations of the reservation based on the current state |
| * of the plan. This is subject to change in the event of re-planning. |
| * The allocations will be constraint to the user contract as described by |
| * the {@link ReservationDefinition} |
| * |
| * @return a list of resource allocations for the reservation. |
| */ |
| @Public |
| @Unstable |
| public abstract List<ResourceAllocationRequest> |
| getResourceAllocationRequests(); |
| |
| /** |
| * Set the list of resource allocations made for the reservation. |
| * |
| * @param resourceAllocations List of {@link ResourceAllocationRequest} |
| * representing the current state of the |
| * reservation resource allocations. This is |
| * subject to change in the event of re-planning. |
| */ |
| @Private |
| @Unstable |
| public abstract void setResourceAllocationRequests( |
| List<ResourceAllocationRequest> resourceAllocations); |
| |
| /** |
| * Get the id of the reservation. |
| * |
| * @return the reservation id corresponding to the reservation. |
| */ |
| @Public |
| @Unstable |
| public abstract ReservationId getReservationId(); |
| |
| /** |
| * Set the id corresponding to the reservation. |
| * ` |
| * @param reservationId {@link ReservationId } of the reservation being |
| * listed. |
| */ |
| @Private |
| @Unstable |
| public abstract void setReservationId(ReservationId reservationId); |
| |
| /** |
| * Get the reservation definition used to make the reservation. |
| * |
| * @return the reservation definition used to make the reservation. |
| */ |
| @Public |
| @Unstable |
| public abstract ReservationDefinition getReservationDefinition(); |
| |
| /** |
| * Set the definition of the reservation. |
| * |
| * @param reservationDefinition {@link ReservationDefinition} used to make |
| * the reservation. |
| */ |
| @Private |
| @Unstable |
| public abstract void setReservationDefinition(ReservationDefinition |
| reservationDefinition); |
| |
| |
| } |