| /* |
| * 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.griffin.measure.utils |
| |
| import java.io.File |
| import java.net.URI |
| |
| import scala.collection.mutable.{Map => MutableMap} |
| |
| import org.apache.hadoop.conf.Configuration |
| import org.apache.hadoop.fs.FileSystem |
| |
| import org.apache.griffin.measure.Loggable |
| |
| object FSUtil extends Loggable { |
| |
| private val fsMap: MutableMap[String, FileSystem] = MutableMap() |
| private val defaultFS: FileSystem = FileSystem.get(getConfiguration) |
| |
| def getFileSystem(path: String): FileSystem = { |
| getUriOpt(path) match { |
| case Some(uri) => |
| fsMap.get(uri.getScheme) match { |
| case Some(fs) => fs |
| case _ => |
| val fs = |
| try { |
| FileSystem.get(uri, getConfiguration) |
| } catch { |
| case e: Throwable => |
| error(s"get file system error: ${e.getMessage}", e) |
| throw e |
| } |
| fsMap += (uri.getScheme -> fs) |
| fs |
| } |
| case _ => defaultFS |
| } |
| } |
| |
| private def getConfiguration: Configuration = { |
| val conf = new Configuration() |
| conf.setBoolean("dfs.support.append", true) |
| // conf.set("fs.defaultFS", "hdfs://localhost") // debug in hdfs localhost env |
| conf |
| } |
| |
| private def getUriOpt(path: String): Option[URI] = { |
| val uriOpt = |
| try { |
| Some(new URI(path)) |
| } catch { |
| case _: Throwable => None |
| } |
| uriOpt.flatMap { uri => |
| if (uri.getScheme == null) { |
| try { |
| Some(new File(path).toURI) |
| } catch { |
| case _: Throwable => None |
| } |
| } else Some(uri) |
| } |
| } |
| |
| } |