| /* |
| * 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. |
| */ |
| |
| import Foundation |
| |
| public struct LocalStorage: FileIOSource { |
| public static func readFiles(matching: PCollection<KV<String, String>>) -> PCollection<Data> { |
| matching.pstream(type: .bounded) { input, output in |
| let fm = FileManager.default |
| for try await (dirAndFile, ts, w) in input { |
| for file in dirAndFile.values { |
| output.emit(fm.contents(atPath: file)!, timestamp: ts, window: w) |
| } |
| } |
| } |
| } |
| |
| public static func listFiles(matching: PCollection<KV<String, String>>) -> PCollection<KV<String, String>> { |
| matching.pstream(type: .bounded) { input, output in |
| for try await (pathAndPattern, ts, w) in input { |
| let path = pathAndPattern.key |
| let patterns = try pathAndPattern.values.map { try Regex($0) } |
| |
| for file in try FileManager.default.contentsOfDirectory(atPath: path) { |
| for p in patterns { |
| do { |
| if try p.firstMatch(in: file) != nil { |
| output.emit(KV(path, file), timestamp: ts, window: w) |
| break |
| } |
| } catch {} |
| } |
| } |
| } |
| } |
| } |
| } |