| /** |
| * 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.resourcemanager.scheduler.capacity.conf; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.util.ReflectionUtils; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| |
| /** |
| * Factory class for creating instances of {@link YarnConfigurationStore}. |
| */ |
| public final class YarnConfigurationStoreFactory { |
| |
| private static final Logger LOG = LoggerFactory.getLogger( |
| YarnConfigurationStoreFactory.class); |
| |
| private YarnConfigurationStoreFactory() { |
| // Unused. |
| } |
| |
| public static YarnConfigurationStore getStore(Configuration conf) { |
| String store = conf.get( |
| YarnConfiguration.SCHEDULER_CONFIGURATION_STORE_CLASS, |
| YarnConfiguration.MEMORY_CONFIGURATION_STORE); |
| switch (store) { |
| case YarnConfiguration.MEMORY_CONFIGURATION_STORE: |
| return new InMemoryConfigurationStore(); |
| case YarnConfiguration.LEVELDB_CONFIGURATION_STORE: |
| return new LeveldbConfigurationStore(); |
| case YarnConfiguration.ZK_CONFIGURATION_STORE: |
| return new ZKConfigurationStore(); |
| case YarnConfiguration.FS_CONFIGURATION_STORE: |
| return new FSSchedulerConfigurationStore(); |
| default: |
| Class<? extends YarnConfigurationStore> storeClass = |
| conf.getClass(YarnConfiguration.SCHEDULER_CONFIGURATION_STORE_CLASS, |
| InMemoryConfigurationStore.class, YarnConfigurationStore.class); |
| LOG.info("Using YarnConfigurationStore implementation - " + storeClass); |
| return ReflectionUtils.newInstance(storeClass, conf); |
| } |
| } |
| } |