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.validation; 18 19 import static dagger.internal.codegen.extension.DaggerStreams.toImmutableSet; 20 21 import com.google.common.collect.ImmutableSet; 22 import com.google.common.collect.Maps; 23 import com.google.common.collect.Sets; 24 import dagger.internal.codegen.compileroption.ProcessingOptions; 25 import dagger.internal.codegen.langmodel.DaggerElements; 26 import dagger.internal.codegen.langmodel.DaggerTypes; 27 import dagger.spi.BindingGraphPlugin; 28 import java.util.Map; 29 import java.util.Set; 30 import javax.annotation.processing.Filer; 31 import javax.inject.Inject; 32 33 /** Initializes {@link BindingGraphPlugin}s. */ 34 public final class BindingGraphPlugins { 35 private final ImmutableSet<BindingGraphPlugin> plugins; 36 private final Filer filer; 37 private final DaggerTypes types; 38 private final DaggerElements elements; 39 private final Map<String, String> processingOptions; 40 41 @Inject BindingGraphPlugins( @alidation ImmutableSet<BindingGraphPlugin> validationPlugins, ImmutableSet<BindingGraphPlugin> externalPlugins, Filer filer, DaggerTypes types, DaggerElements elements, @ProcessingOptions Map<String, String> processingOptions)42 BindingGraphPlugins( 43 @Validation ImmutableSet<BindingGraphPlugin> validationPlugins, 44 ImmutableSet<BindingGraphPlugin> externalPlugins, 45 Filer filer, 46 DaggerTypes types, 47 DaggerElements elements, 48 @ProcessingOptions Map<String, String> processingOptions) { 49 this.plugins = Sets.union(validationPlugins, externalPlugins).immutableCopy(); 50 this.filer = filer; 51 this.types = types; 52 this.elements = elements; 53 this.processingOptions = processingOptions; 54 } 55 56 /** Returns {@link BindingGraphPlugin#supportedOptions()} from all the plugins. */ allSupportedOptions()57 public ImmutableSet<String> allSupportedOptions() { 58 return plugins.stream() 59 .flatMap(plugin -> plugin.supportedOptions().stream()) 60 .collect(toImmutableSet()); 61 } 62 63 /** Initializes the plugins. */ 64 // TODO(ronshapiro): Should we validate the uniqueness of plugin names? initializePlugins()65 public void initializePlugins() { 66 plugins.forEach(this::initializePlugin); 67 } 68 initializePlugin(BindingGraphPlugin plugin)69 private void initializePlugin(BindingGraphPlugin plugin) { 70 plugin.initFiler(filer); 71 plugin.initTypes(types); 72 plugin.initElements(elements); 73 Set<String> supportedOptions = plugin.supportedOptions(); 74 if (!supportedOptions.isEmpty()) { 75 plugin.initOptions(Maps.filterKeys(processingOptions, supportedOptions::contains)); 76 } 77 } 78 } 79