1 /**
2  * Copyright (C) 2011 Google Inc.
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.google.inject.grapher;
18 
19 import com.google.common.collect.Sets;
20 import com.google.inject.Guice;
21 import com.google.inject.Injector;
22 import com.google.inject.Key;
23 
24 import java.util.Set;
25 import java.util.logging.Logger;
26 
27 /**
28  * Root key set creator that starts with all types that are not Guice internal types or the
29  * {@link Logger} type.
30  *
31  * @author bojand@google.com (Bojan Djordjevic)
32  * @since 4.0
33  */
34 public class DefaultRootKeySetCreator implements RootKeySetCreator {
35   private static final Key<Logger> loggerKey = Key.get(Logger.class);
36 
getRootKeys(Injector injector)37   @Override public Set<Key<?>> getRootKeys(Injector injector) {
38     Set<Key<?>> root = Sets.newHashSet();
39     for (Key<?> key : injector.getBindings().keySet()) {
40       if (key.getTypeLiteral().getRawType().getPackage() != Guice.class.getPackage()
41         && !loggerKey.equals(key)) {
42         root.add(key);
43       }
44     }
45     return root;
46   }
47 }
48