| /** |
| * 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.protocolrecords; |
| |
| import java.util.List; |
| |
| import org.apache.hadoop.classification.InterfaceAudience.Public; |
| import org.apache.hadoop.classification.InterfaceStability.Stable; |
| import org.apache.hadoop.yarn.api.ContainerManagementProtocol; |
| import org.apache.hadoop.yarn.api.records.ContainerLaunchContext; |
| import org.apache.hadoop.yarn.util.Records; |
| |
| /** |
| * <p> |
| * The request which contains a list of {@link StartContainerRequest} sent by |
| * the <code>ApplicationMaster</code> to the <code>NodeManager</code> to |
| * <em>start</em> containers. |
| * </p> |
| * |
| * <p> |
| * In each {@link StartContainerRequest}, the <code>ApplicationMaster</code> has |
| * to provide details such as allocated resource capability, security tokens (if |
| * enabled), command to be executed to start the container, environment for the |
| * process, necessary binaries/jar/shared-objects etc. via the |
| * {@link ContainerLaunchContext}. |
| * </p> |
| * |
| * @see ContainerManagementProtocol#startContainers(StartContainersRequest) |
| */ |
| @Public |
| @Stable |
| public abstract class StartContainersRequest { |
| |
| @Public |
| @Stable |
| public static StartContainersRequest newInstance( |
| List<StartContainerRequest> requests) { |
| StartContainersRequest request = |
| Records.newRecord(StartContainersRequest.class); |
| request.setStartContainerRequests(requests); |
| return request; |
| } |
| |
| /** |
| * Get a list of {@link StartContainerRequest} to start containers. |
| * @return a list of {@link StartContainerRequest} to start containers. |
| */ |
| @Public |
| @Stable |
| public abstract List<StartContainerRequest> getStartContainerRequests(); |
| |
| /** |
| * Set a list of {@link StartContainerRequest} to start containers. |
| * @param request a list of {@link StartContainerRequest} to start containers |
| */ |
| @Public |
| @Stable |
| public abstract void setStartContainerRequests( |
| List<StartContainerRequest> request); |
| } |