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      1 /*
      2  * Copyright (C) 2008 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.target;
     18 
     19 import java.io.IOException;
     20 import java.util.Collections;
     21 import java.util.HashSet;
     22 import java.util.Set;
     23 import java.util.TreeSet;
     24 
     25 /**
     26  * The class and subpackage contents of a package.
     27  *
     28  * <p>Adapted from android.test.ClassPathPackageInfo.
     29  */
     30 class Package {
     31 
     32     private final ClassPathScanner source;
     33     private final Set<String> subpackageNames;
     34     private final Set<Class<?>> topLevelClasses;
     35 
     36     Package(ClassPathScanner source,
     37             Set<String> subpackageNames, Set<Class<?>> topLevelClasses) {
     38         this.source = source;
     39         this.subpackageNames = Collections.unmodifiableSet(subpackageNames);
     40         this.topLevelClasses = Collections.unmodifiableSet(topLevelClasses);
     41     }
     42 
     43     public Set<Class<?>> getTopLevelClassesRecursive() throws IOException {
     44         Set<Class<?>> set = new TreeSet<Class<?>>(ClassPathScanner.ORDER_CLASS_BY_NAME);
     45         addTopLevelClassesTo(set);
     46         return set;
     47     }
     48 
     49     private Set<Package> getSubpackages() throws IOException {
     50         Set<Package> info = new HashSet<Package>();
     51         for (String name : subpackageNames) {
     52             info.add(source.scan(name));
     53         }
     54         return info;
     55     }
     56 
     57     private void addTopLevelClassesTo(Set<Class<?>> set) throws IOException {
     58         set.addAll(topLevelClasses);
     59         for (Package info : getSubpackages()) {
     60             info.addTopLevelClassesTo(set);
     61         }
     62     }
     63 }
     64