| /** |
| * 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.falcon.util; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.falcon.FalconException; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| /** |
| * Util class for FS DR. |
| */ |
| public final class FSDRUtils { |
| private FSDRUtils() { |
| } |
| |
| private static final List<String> HDFS_SCHEME_PREFIXES = |
| Arrays.asList("file", "hdfs", "hftp", "hsftp", "webhdfs", "swebhdfs"); |
| |
| private static Configuration defaultConf = new Configuration(); |
| |
| public static Configuration getDefaultConf() { |
| return defaultConf; |
| } |
| |
| public static void setDefaultConf(Configuration conf) { |
| defaultConf = conf; |
| } |
| |
| public static boolean isHCFS(Path filePath) throws FalconException { |
| if (filePath == null) { |
| throw new FalconException("filePath cannot be empty"); |
| } |
| |
| String scheme; |
| try { |
| FileSystem f = FileSystem.get(filePath.toUri(), getDefaultConf()); |
| scheme = f.getScheme(); |
| if (StringUtils.isBlank(scheme)) { |
| throw new FalconException("Cannot get valid scheme for " + filePath); |
| } |
| } catch (IOException e) { |
| throw new FalconException(e); |
| } |
| |
| return HDFS_SCHEME_PREFIXES.contains(scheme.toLowerCase().trim()) ? false : true; |
| } |
| } |