1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.google.currysrc.api.input; 17 18 import com.google.common.collect.Lists; 19 import com.google.currysrc.api.input.InputFileGenerator; 20 21 import java.io.File; 22 import java.util.List; 23 24 /** 25 * Generates a set of .java input files beneath a given base directory. 26 */ 27 public final class DirectoryInputFileGenerator implements InputFileGenerator { 28 29 private final File baseDir; 30 31 public DirectoryInputFileGenerator(File baseDir) { 32 if (baseDir == null) { 33 throw new NullPointerException("Null baseDir"); 34 } 35 this.baseDir = baseDir; 36 } 37 38 @Override 39 public Iterable<? extends File> generate() { 40 List<File> files = Lists.newArrayList(); 41 collectFiles(baseDir, files); 42 return files; 43 } 44 45 private void collectFiles(File baseDir, List<File> files) { 46 if (!baseDir.exists()) { 47 throw new IllegalArgumentException("Not found: " + baseDir.getAbsolutePath()); 48 } 49 if (!baseDir.isDirectory()) { 50 throw new IllegalArgumentException("Not a directory: " + baseDir.getAbsolutePath()); 51 } 52 for (File file : baseDir.listFiles()) { 53 if (file.isDirectory()) { 54 collectFiles(file, files); 55 } else if (file.getName().endsWith(".java")) { 56 files.add(file); 57 } else { 58 System.out.println("Ignoring file: " + file); 59 } 60 } 61 } 62 } 63
