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.Lists; 20 import com.google.inject.Binding; 21 import com.google.inject.spi.ProviderBinding; 22 import java.util.List; 23 24 /** 25 * Alias creator that creates an alias for each {@link ProviderBinding}. These {@link Binding}s 26 * arise from an {@link InjectionPoint} for the {@link Provider} interface. Since this isn't very 27 * interesting information, we don't render this binding on the graph, and just alias the two nodes. 28 * 29 * @author bojand@google.com (Bojan Djordjevic) 30 */ 31 final class ProviderAliasCreator implements AliasCreator { 32 @Override createAliases(Iterable<Binding<?>> bindings)33 public Iterable<Alias> createAliases(Iterable<Binding<?>> bindings) { 34 List<Alias> aliases = Lists.newArrayList(); 35 for (Binding<?> binding : bindings) { 36 if (binding instanceof ProviderBinding) { 37 aliases.add( 38 new Alias( 39 NodeId.newTypeId(binding.getKey()), 40 NodeId.newTypeId(((ProviderBinding<?>) binding).getProvidedKey()))); 41 } 42 } 43 return aliases; 44 } 45 } 46