| /** |
| * 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.server.federation.store.utils; |
| |
| import org.apache.hadoop.yarn.api.records.ApplicationId; |
| import org.apache.hadoop.yarn.server.federation.store.exception.FederationStateStoreInvalidInputException; |
| import org.apache.hadoop.yarn.server.federation.store.records.AddApplicationHomeSubClusterRequest; |
| import org.apache.hadoop.yarn.server.federation.store.records.ApplicationHomeSubCluster; |
| import org.apache.hadoop.yarn.server.federation.store.records.DeleteApplicationHomeSubClusterRequest; |
| import org.apache.hadoop.yarn.server.federation.store.records.GetApplicationHomeSubClusterRequest; |
| import org.apache.hadoop.yarn.server.federation.store.records.UpdateApplicationHomeSubClusterRequest; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Utility class to validate the inputs to |
| * {@code FederationApplicationHomeSubClusterStore}, allows a fail fast |
| * mechanism for invalid user inputs. |
| * |
| */ |
| public final class FederationApplicationHomeSubClusterStoreInputValidator { |
| |
| private static final Logger LOG = LoggerFactory |
| .getLogger(FederationApplicationHomeSubClusterStoreInputValidator.class); |
| |
| private FederationApplicationHomeSubClusterStoreInputValidator() { |
| } |
| |
| /** |
| * Quick validation on the input to check some obvious fail conditions (fail |
| * fast). Check if the provided {@link AddApplicationHomeSubClusterRequest} |
| * for adding a new application is valid or not. |
| * |
| * @param request the {@link AddApplicationHomeSubClusterRequest} to validate |
| * against |
| * @throws FederationStateStoreInvalidInputException if the request is invalid |
| */ |
| public static void validate(AddApplicationHomeSubClusterRequest request) |
| throws FederationStateStoreInvalidInputException { |
| if (request == null) { |
| String message = "Missing AddApplicationHomeSubCluster Request." |
| + " Please try again by specifying" |
| + " an AddApplicationHomeSubCluster information."; |
| LOG.warn(message); |
| throw new FederationStateStoreInvalidInputException(message); |
| } |
| |
| // validate ApplicationHomeSubCluster info |
| checkApplicationHomeSubCluster(request.getApplicationHomeSubCluster()); |
| } |
| |
| /** |
| * Quick validation on the input to check some obvious fail conditions (fail |
| * fast). Check if the provided {@link UpdateApplicationHomeSubClusterRequest} |
| * for updating an application is valid or not. |
| * |
| * @param request the {@link UpdateApplicationHomeSubClusterRequest} to |
| * validate against |
| * @throws FederationStateStoreInvalidInputException if the request is invalid |
| */ |
| public static void validate(UpdateApplicationHomeSubClusterRequest request) |
| throws FederationStateStoreInvalidInputException { |
| if (request == null) { |
| String message = "Missing UpdateApplicationHomeSubCluster Request." |
| + " Please try again by specifying" |
| + " an ApplicationHomeSubCluster information."; |
| LOG.warn(message); |
| throw new FederationStateStoreInvalidInputException(message); |
| } |
| |
| // validate ApplicationHomeSubCluster info |
| checkApplicationHomeSubCluster(request.getApplicationHomeSubCluster()); |
| } |
| |
| /** |
| * Quick validation on the input to check some obvious fail conditions (fail |
| * fast). Check if the provided {@link GetApplicationHomeSubClusterRequest} |
| * for querying application's information is valid or not. |
| * |
| * @param request the {@link GetApplicationHomeSubClusterRequest} to validate |
| * against |
| * @throws FederationStateStoreInvalidInputException if the request is invalid |
| */ |
| public static void validate(GetApplicationHomeSubClusterRequest request) |
| throws FederationStateStoreInvalidInputException { |
| if (request == null) { |
| String message = "Missing GetApplicationHomeSubCluster Request." |
| + " Please try again by specifying an Application Id information."; |
| LOG.warn(message); |
| throw new FederationStateStoreInvalidInputException(message); |
| } |
| |
| // validate application Id |
| checkApplicationId(request.getApplicationId()); |
| } |
| |
| /** |
| * Quick validation on the input to check some obvious fail conditions (fail |
| * fast). Check if the provided {@link DeleteApplicationHomeSubClusterRequest} |
| * for deleting an application is valid or not. |
| * |
| * @param request the {@link DeleteApplicationHomeSubClusterRequest} to |
| * validate against |
| * @throws FederationStateStoreInvalidInputException if the request is invalid |
| */ |
| public static void validate(DeleteApplicationHomeSubClusterRequest request) |
| throws FederationStateStoreInvalidInputException { |
| if (request == null) { |
| String message = "Missing DeleteApplicationHomeSubCluster Request." |
| + " Please try again by specifying" |
| + " an ApplicationHomeSubCluster information."; |
| LOG.warn(message); |
| throw new FederationStateStoreInvalidInputException(message); |
| } |
| |
| // validate application Id |
| checkApplicationId(request.getApplicationId()); |
| } |
| |
| /** |
| * Validate if the ApplicationHomeSubCluster info are present or not. |
| * |
| * @param applicationHomeSubCluster the information of the application to be |
| * verified |
| * @throws FederationStateStoreInvalidInputException if the SubCluster Info |
| * are invalid |
| */ |
| private static void checkApplicationHomeSubCluster( |
| ApplicationHomeSubCluster applicationHomeSubCluster) |
| |
| throws FederationStateStoreInvalidInputException { |
| if (applicationHomeSubCluster == null) { |
| String message = "Missing ApplicationHomeSubCluster Info." |
| + " Please try again by specifying" |
| + " an ApplicationHomeSubCluster information."; |
| LOG.warn(message); |
| throw new FederationStateStoreInvalidInputException(message); |
| } |
| // validate application Id |
| checkApplicationId(applicationHomeSubCluster.getApplicationId()); |
| |
| // validate subcluster Id |
| FederationMembershipStateStoreInputValidator |
| .checkSubClusterId(applicationHomeSubCluster.getHomeSubCluster()); |
| |
| } |
| |
| /** |
| * Validate if the application id is present or not. |
| * |
| * @param appId the id of the application to be verified |
| * @throws FederationStateStoreInvalidInputException if the application Id is |
| * invalid |
| */ |
| private static void checkApplicationId(ApplicationId appId) |
| throws FederationStateStoreInvalidInputException { |
| if (appId == null) { |
| String message = "Missing Application Id." |
| + " Please try again by specifying an Application Id."; |
| LOG.warn(message); |
| throw new FederationStateStoreInvalidInputException(message); |
| } |
| } |
| } |