| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed 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. |
| */ |
| |
| package vogar.target; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.Set; |
| |
| class ClassFinder { |
| /** |
| * Returns either a Set with the class represented by classOrPackageName as its only element, if |
| * classOrPackageName represents a class, or a Set containing all of the classes contained |
| * within the package represented by classOrPackageName, if it represents a package. |
| * |
| * Throws an exception if it represents neither a class nor a package with at least one class. |
| */ |
| public Set<Class<?>> find(String classOrPackageName) { |
| try { |
| // if no exception thrown, classOrPackageName must represent a class |
| return Collections.<Class<?>>singleton(Class.forName(classOrPackageName)); |
| } catch (ClassNotFoundException e) { |
| } |
| // classOrPackageName might represent a package |
| try { |
| Package aPackage = new ClassPathScanner().scan(classOrPackageName); |
| Set<Class<?>> classes = aPackage.getTopLevelClassesRecursive(); |
| if (classes.isEmpty()) { |
| throw new IllegalArgumentException("No classes in package: " + classOrPackageName + |
| "; classpath is " + Arrays.toString(ClassPathScanner.getClassPath())); |
| } |
| return classes; |
| } catch (IOException eIO) { |
| throw new RuntimeException(eIO); |
| } |
| } |
| } |