1 /* 2 * Copyright (C) 2010 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 vogar; 18 19 import java.io.File; 20 import java.io.IOException; 21 import java.util.Map; 22 23 /** 24 * Handles finding actions to perform, given files and classes. 25 */ 26 public final class ActionFinder { 27 private final Log log; 28 private final Map<String, Action> actions; 29 private final Map<String, Outcome> outcomes; 30 ActionFinder(Log log, Map<String, Action> actions, Map<String, Outcome> outcomes)31 public ActionFinder(Log log, Map<String, Action> actions, Map<String, Outcome> outcomes) { 32 this.log = log; 33 this.actions = actions; 34 this.outcomes = outcomes; 35 } 36 findActions(File file)37 public void findActions(File file) { 38 findActionsRecursive(file, 0); 39 } 40 findActionsRecursive(File file, int depth)41 private void findActionsRecursive(File file, int depth) { 42 if (file.isDirectory()) { 43 int size = actions.size(); 44 for (File child : file.listFiles()) { 45 findActionsRecursive(child, depth + 1); 46 } 47 if (depth < 3) { 48 log.verbose("found " + (actions.size() - size) + " actions in " + file); 49 } 50 return; 51 } 52 53 // Don't try to treat this file as a class unless it resembles a .java file 54 if (!matches(file)) { 55 return; 56 } 57 58 try { 59 Action action = fileToAction(file); 60 actions.put(action.getName(), action); 61 } catch (IllegalArgumentException e) { 62 String actionName = Action.nameForJavaFile(file); 63 Action action = new Action(actionName, null, null, null, file); 64 actions.put(actionName, action); 65 outcomes.put(actionName, new Outcome(actionName, Result.UNSUPPORTED, e)); 66 } 67 } 68 matches(File file)69 private boolean matches(File file) { 70 return !file.getName().startsWith(".") && file.getName().endsWith(".java"); 71 } 72 73 /** 74 * Returns an action for the given .java file. 75 */ fileToAction(File javaFile)76 private Action fileToAction(File javaFile) { 77 try { 78 DotJavaFile dotJavaFile = DotJavaFile.parse(javaFile); 79 File resourcesDir = dotJavaFile.isJtreg() ? javaFile.getParentFile() : null; 80 return new Action(dotJavaFile.getActionName(), dotJavaFile.getClassName(), resourcesDir, 81 getSourcePath(javaFile, dotJavaFile.getClassName()), javaFile); 82 } catch (IOException e) { 83 throw new RuntimeException(e); 84 } 85 } 86 87 /** 88 * Returns the source path of {@code file}. 89 */ getSourcePath(File file, String className)90 private File getSourcePath(File file, String className) { 91 String path = file.getPath(); 92 String relativePath = className.replace('.', File.separatorChar) + ".java"; 93 if (!path.endsWith(relativePath)) { 94 throw new IllegalArgumentException("Expected a file ending in " + relativePath + " but found " + path); 95 } 96 return new File(path.substring(0, path.length() - relativePath.length())); 97 } 98 } 99