1 /* 2 * Copyright (C) 2012 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 17 package com.android.idegen; 18 19 import com.google.common.base.Preconditions; 20 import com.google.common.collect.Maps; 21 import com.google.common.collect.Sets; 22 import com.google.common.io.Files; 23 import com.google.common.io.LineProcessor; 24 25 import java.io.File; 26 import java.io.IOException; 27 import java.nio.charset.Charset; 28 import java.util.HashMap; 29 import java.util.Set; 30 import java.util.logging.Level; 31 import java.util.logging.Logger; 32 33 /** 34 * Mapping of module names to make files. 35 */ 36 public class ModuleIndexes { 37 38 private static final Logger logger = Logger.getLogger(ModuleIndexes.class.getName()); 39 40 private File indexFile; 41 private HashMap<String, String> moduleNameToMakeFileMap; 42 private HashMap<String, Set<String>> makeFileToModuleNamesMap; 43 44 public ModuleIndexes(File indexFile) { 45 this.indexFile = indexFile; 46 } 47 48 public void build() throws IOException { 49 50 moduleNameToMakeFileMap = Maps.newHashMap(); 51 makeFileToModuleNamesMap = Maps.newHashMap(); 52 logger.info("Building index from " + indexFile.getCanonicalPath()); 53 Files.readLines(indexFile, Charset.forName("UTF-8"), 54 new LineProcessor<Object>() { 55 int count = 0; 56 57 @Override 58 public boolean processLine(String line) throws IOException { 59 count++; 60 String[] arr = line.split(":"); 61 if (arr.length < 2) { 62 logger.log(Level.WARNING, 63 "Ignoring index line " + count + ". Bad format: " + line); 64 } else { 65 String makeFile = arr[0]; 66 String moduleName = arr[1]; 67 moduleNameToMakeFileMap.put(moduleName, makeFile); 68 append(makeFile, moduleName); 69 } 70 return true; 71 } 72 73 @Override 74 public Object getResult() { 75 return null; 76 } 77 }); 78 } 79 80 private void append(String makeFile, String moduleName) { 81 Set<String> moduleNames = makeFileToModuleNamesMap.get(makeFile); 82 if (moduleNames == null) { 83 moduleNames = Sets.newHashSet(); 84 makeFileToModuleNamesMap.put(makeFile, moduleNames); 85 } else { 86 // Create a aggregate module place holder. 87 //moduleNameToMakeFileMap.put(getAggregateName(moduleDir), makeFile); 88 } 89 moduleNames.add(moduleName); 90 } 91 92 public String getMakeFile(String moduleName) { 93 Preconditions.checkState(moduleNameToMakeFileMap != null, 94 "Index not built. Call build() first."); 95 96 return moduleNameToMakeFileMap.get(moduleName); 97 } 98 } 99
