| /* |
| * 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.fs.adl.live; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.adl.AdlFileSystem; |
| import org.apache.hadoop.util.ReflectionUtils; |
| |
| import java.io.IOException; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| |
| /** |
| * Configure Adl storage file system. |
| */ |
| public final class AdlStorageConfiguration { |
| static final String CONTRACT_XML = "adls.xml"; |
| |
| private static final String CONTRACT_ENABLE_KEY = |
| "fs.adl.test.contract.enable"; |
| private static final boolean CONTRACT_ENABLE_DEFAULT = false; |
| |
| private static final String FILE_SYSTEM_KEY = |
| String.format("test.fs.%s.name", AdlFileSystem.SCHEME); |
| |
| private static final String FILE_SYSTEM_IMPL_KEY = |
| String.format("fs.%s.impl", AdlFileSystem.SCHEME); |
| private static final Class<?> FILE_SYSTEM_IMPL_DEFAULT = |
| AdlFileSystem.class; |
| |
| private static boolean isContractTestEnabled = false; |
| private static Configuration conf = null; |
| |
| static { |
| Configuration.addDeprecation("dfs.adl.test.contract.enable", |
| CONTRACT_ENABLE_KEY); |
| Configuration.reloadExistingConfigurations(); |
| } |
| |
| private AdlStorageConfiguration() { |
| } |
| |
| public synchronized static Configuration getConfiguration() { |
| Configuration newConf = new Configuration(); |
| newConf.addResource(CONTRACT_XML); |
| return newConf; |
| } |
| |
| public synchronized static boolean isContractTestEnabled() { |
| if (conf == null) { |
| conf = getConfiguration(); |
| } |
| |
| isContractTestEnabled = conf.getBoolean(CONTRACT_ENABLE_KEY, |
| CONTRACT_ENABLE_DEFAULT); |
| return isContractTestEnabled; |
| } |
| |
| public synchronized static FileSystem createStorageConnector() |
| throws URISyntaxException, IOException { |
| if (conf == null) { |
| conf = getConfiguration(); |
| } |
| |
| if (!isContractTestEnabled()) { |
| return null; |
| } |
| |
| String fileSystem = conf.get(FILE_SYSTEM_KEY); |
| if (fileSystem == null || fileSystem.trim().length() == 0) { |
| throw new IOException("Default file system not configured."); |
| } |
| |
| Class<?> clazz = conf.getClass(FILE_SYSTEM_IMPL_KEY, |
| FILE_SYSTEM_IMPL_DEFAULT); |
| FileSystem fs = (FileSystem) ReflectionUtils.newInstance(clazz, conf); |
| fs.initialize(new URI(fileSystem), conf); |
| return fs; |
| } |
| } |