1 /* 2 * Copyright (C) 2012 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.caliper.json; 18 19 import com.google.gson.ExclusionStrategy; 20 import com.google.gson.Gson; 21 import com.google.gson.GsonBuilder; 22 import com.google.gson.TypeAdapterFactory; 23 import com.google.gson.internal.bind.TypeAdapters; 24 import dagger.Module; 25 import dagger.Provides; 26 import dagger.Provides.Type; 27 import org.joda.time.Instant; 28 import java.util.Set; 29 30 /** 31 * Binds a {@link Gson} instance suitable for serializing and deserializing Caliper 32 * {@linkplain com.google.caliper.model model} objects. 33 */ 34 @Module 35 public final class GsonModule { 36 37 @Provides(type = Type.SET) provideImmutableListTypeAdapterFactory()38 static TypeAdapterFactory provideImmutableListTypeAdapterFactory() { 39 return new ImmutableListTypeAdatperFactory(); 40 } 41 42 @Provides(type = Type.SET) provideImmutableMapTypeAdapterFactory()43 static TypeAdapterFactory provideImmutableMapTypeAdapterFactory() { 44 return new ImmutableMapTypeAdapterFactory(); 45 } 46 47 @Provides(type = Type.SET) provideNaturallySortedMapTypeAdapterFactory()48 static TypeAdapterFactory provideNaturallySortedMapTypeAdapterFactory() { 49 return new NaturallySortedMapTypeAdapterFactory(); 50 } 51 52 @Provides(type = Type.SET) provideImmutableMultimapTypeAdapterFactory()53 static TypeAdapterFactory provideImmutableMultimapTypeAdapterFactory() { 54 return new ImmutableMultimapTypeAdapterFactory(); 55 } 56 57 @Provides provideAnnotationExclusionStrategy()58 static ExclusionStrategy provideAnnotationExclusionStrategy() { 59 return new AnnotationExclusionStrategy(); 60 } 61 62 @Provides(type = Type.SET) provideTypeAdapterFactoryForInstant( InstantTypeAdapter typeAdapter)63 static TypeAdapterFactory provideTypeAdapterFactoryForInstant( 64 InstantTypeAdapter typeAdapter) { 65 return TypeAdapters.newFactory(Instant.class, typeAdapter); 66 } 67 provideInstantTypeAdapter()68 @Provides static InstantTypeAdapter provideInstantTypeAdapter() { 69 return new InstantTypeAdapter(); 70 } 71 provideGson(Set<TypeAdapterFactory> typeAdapterFactories, ExclusionStrategy exclusionStrategy)72 @Provides static Gson provideGson(Set<TypeAdapterFactory> typeAdapterFactories, 73 ExclusionStrategy exclusionStrategy) { 74 GsonBuilder gsonBuilder = new GsonBuilder().setExclusionStrategies(exclusionStrategy); 75 for (TypeAdapterFactory typeAdapterFactory : typeAdapterFactories) { 76 gsonBuilder.registerTypeAdapterFactory(typeAdapterFactory); 77 } 78 return gsonBuilder.create(); 79 } 80 } 81