1 /* 2 * Copyright (C) 2018 The Dagger Authors. 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 dagger.internal.codegen; 18 19 import static java.lang.annotation.ElementType.FIELD; 20 import static java.lang.annotation.ElementType.METHOD; 21 import static java.lang.annotation.ElementType.PARAMETER; 22 import static java.lang.annotation.RetentionPolicy.RUNTIME; 23 24 import com.google.common.collect.ImmutableSet; 25 import dagger.Module; 26 import dagger.Provides; 27 import dagger.spi.BindingGraphPlugin; 28 import java.lang.annotation.Retention; 29 import java.lang.annotation.Target; 30 import java.util.Optional; 31 import java.util.ServiceLoader; 32 import javax.inject.Qualifier; 33 import javax.inject.Singleton; 34 35 /** Contains the bindings for {@link BindingGraphValidator} from external SPI providers. */ 36 @Module 37 abstract class SpiModule { SpiModule()38 private SpiModule() {} 39 40 @Provides 41 @Singleton externalPlugins( @estingPlugins Optional<ImmutableSet<BindingGraphPlugin>> testingPlugins)42 static ImmutableSet<BindingGraphPlugin> externalPlugins( 43 @TestingPlugins Optional<ImmutableSet<BindingGraphPlugin>> testingPlugins) { 44 return testingPlugins.orElseGet( 45 () -> 46 ImmutableSet.copyOf( 47 ServiceLoader.load( 48 BindingGraphPlugin.class, BindingGraphValidator.class.getClassLoader()))); 49 } 50 51 @Qualifier 52 @Retention(RUNTIME) 53 @Target({FIELD, PARAMETER, METHOD}) 54 @interface TestingPlugins {} 55 } 56