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/*
* Copyright (C) 2015 The Dagger Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package dagger.internal.codegen.validation;
import static com.squareup.javapoet.MethodSpec.constructorBuilder;
import static com.squareup.javapoet.MethodSpec.methodBuilder;
import static com.squareup.javapoet.TypeSpec.classBuilder;
import static dagger.internal.codegen.javapoet.TypeNames.PRODUCTION_COMPONENT_MONITOR_FACTORY;
import static dagger.internal.codegen.javapoet.TypeNames.providerOf;
import static dagger.internal.codegen.javapoet.TypeNames.setOf;
import static javax.lang.model.element.Modifier.ABSTRACT;
import static javax.lang.model.element.Modifier.PRIVATE;
import static javax.lang.model.element.Modifier.STATIC;
import com.squareup.javapoet.ClassName;
import com.squareup.javapoet.MethodSpec;
import com.squareup.javapoet.TypeSpec;
import dagger.Module;
import dagger.Provides;
import dagger.internal.codegen.base.SourceFileGenerator;
import dagger.internal.codegen.binding.SourceFiles;
import dagger.internal.codegen.langmodel.DaggerElements;
import dagger.multibindings.Multibinds;
import dagger.producers.ProductionScope;
import dagger.producers.monitoring.ProductionComponentMonitor;
import dagger.producers.monitoring.internal.Monitors;
import java.util.Optional;
import javax.annotation.processing.Filer;
import javax.inject.Inject;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.Element;
import javax.lang.model.element.TypeElement;
/** Generates a monitoring module for use with production components. */
final class MonitoringModuleGenerator extends SourceFileGenerator<TypeElement> {
@Inject
MonitoringModuleGenerator(Filer filer, DaggerElements elements, SourceVersion sourceVersion) {
super(filer, elements, sourceVersion);
}
@Override
public ClassName nameGeneratedType(TypeElement componentElement) {
return SourceFiles.generatedMonitoringModuleName(componentElement);
}
@Override
public Element originatingElement(TypeElement componentElement) {
return componentElement;
}
@Override
public Optional<TypeSpec.Builder> write(TypeElement componentElement) {
return Optional.of(
classBuilder(nameGeneratedType(componentElement))
.addAnnotation(Module.class)
.addModifiers(ABSTRACT)
.addMethod(privateConstructor())
.addMethod(setOfFactories())
.addMethod(monitor(componentElement)));
}
private MethodSpec privateConstructor() {
return constructorBuilder().addModifiers(PRIVATE).build();
}
private MethodSpec setOfFactories() {
return methodBuilder("setOfFactories")
.addAnnotation(Multibinds.class)
.addModifiers(ABSTRACT)
.returns(setOf(PRODUCTION_COMPONENT_MONITOR_FACTORY))
.build();
}
private MethodSpec monitor(TypeElement componentElement) {
return methodBuilder("monitor")
.returns(ProductionComponentMonitor.class)
.addModifiers(STATIC)
.addAnnotation(Provides.class)
.addAnnotation(ProductionScope.class)
.addParameter(providerOf(ClassName.get(componentElement.asType())), "component")
.addParameter(
providerOf(setOf(PRODUCTION_COMPONENT_MONITOR_FACTORY)), "factories")
.addStatement(
"return $T.createMonitorForComponent(component, factories)", Monitors.class)
.build();
}
}
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