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.android.icu4j.srcgen; 17 18 import com.google.currysrc.api.input.CompoundDirectoryInputFileGenerator; 19 import com.google.currysrc.api.input.DirectoryInputFileGenerator; 20 import com.google.currysrc.api.input.FilesInputFileGenerator; 21 import com.google.currysrc.api.input.InputFileGenerator; 22 import com.google.currysrc.api.match.SourceMatchers; 23 import com.google.currysrc.api.output.BasicOutputSourceFileGenerator; 24 import com.google.currysrc.api.process.DefaultRule; 25 import com.google.currysrc.api.process.Processor; 26 27 import java.io.File; 28 import java.util.ArrayList; 29 import java.util.List; 30 31 /** 32 * Useful chunks of {@link com.google.currysrc.api.Rules} code shared between various tools. 33 */ 34 public class Icu4jTransformRules { 35 private Icu4jTransformRules() {} 36 37 public static CompoundDirectoryInputFileGenerator createInputFileGenerator(String[] dirNames) { 38 List<InputFileGenerator> dirs = new ArrayList<>(dirNames.length); 39 for (int i = 0; i < dirNames.length; i++) { 40 File inputFile = new File(dirNames[i]); 41 InputFileGenerator inputFileGenerator; 42 if (isValidDir(inputFile)) { 43 inputFileGenerator = new DirectoryInputFileGenerator(inputFile); 44 } else if (isValidFile(inputFile)) { 45 inputFileGenerator = new FilesInputFileGenerator(inputFile); 46 } else { 47 throw new IllegalArgumentException("Input arg [" + inputFile + "] does not exist."); 48 } 49 dirs.add(inputFileGenerator); 50 } 51 return new CompoundDirectoryInputFileGenerator(dirs); 52 } 53 54 public static BasicOutputSourceFileGenerator createOutputFileGenerator(String outputDirName) { 55 File outputDir = new File(outputDirName); 56 if (!isValidDir(outputDir)) { 57 throw new IllegalArgumentException("Output dir [" + outputDir + "] does not exist."); 58 } 59 return new BasicOutputSourceFileGenerator(outputDir); 60 } 61 62 public static DefaultRule createMandatoryRule(Processor processor) { 63 return new DefaultRule(processor, SourceMatchers.all(), true /* mustModify */); 64 } 65 66 public static DefaultRule createOptionalRule(Processor processor) { 67 return new DefaultRule(processor, SourceMatchers.all(), false /* mustModify */); 68 } 69 70 private static boolean isValidDir(File dir) { 71 return dir.exists() && dir.isDirectory(); 72 } 73 74 private static boolean isValidFile(File file) { 75 return file.exists() && file.isFile(); 76 } 77 78 } 79
