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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.model;
import static com.google.auto.common.MoreElements.isAnnotationPresent;
import static com.google.common.base.Preconditions.checkArgument;
import com.google.auto.common.AnnotationMirrors;
import com.google.auto.common.MoreElements;
import com.google.auto.common.MoreTypes;
import com.google.auto.value.AutoValue;
import com.google.common.base.Equivalence;
import dagger.Reusable;
import dagger.producers.ProductionScope;
import java.lang.annotation.Annotation;
import javax.inject.Singleton;
import javax.lang.model.element.AnnotationMirror;
import javax.lang.model.element.TypeElement;
/** A representation of a {@link javax.inject.Scope}. */
@AutoValue
// TODO(ronshapiro): point to SimpleAnnotationMirror
public abstract class Scope {
abstract Equivalence.Wrapper<AnnotationMirror> wrappedScopeAnnotation();
/** The {@link AnnotationMirror} that represents the scope annotation. */
public final AnnotationMirror scopeAnnotation() {
return wrappedScopeAnnotation().get();
}
/** The scope annotation element. */
public final TypeElement scopeAnnotationElement() {
return MoreTypes.asTypeElement(scopeAnnotation().getAnnotationType());
}
/**
* Creates a {@link Scope} object from the {@link javax.inject.Scope}-annotated annotation type.
*/
public static Scope scope(AnnotationMirror scopeAnnotation) {
checkArgument(isScope(scopeAnnotation));
return new AutoValue_Scope(AnnotationMirrors.equivalence().wrap(scopeAnnotation));
}
/**
* Returns {@code true} if {@link #scopeAnnotation()} is a {@link javax.inject.Scope} annotation.
*/
public static boolean isScope(AnnotationMirror scopeAnnotation) {
return isScope(MoreElements.asType(scopeAnnotation.getAnnotationType().asElement()));
}
/**
* Returns {@code true} if {@code scopeAnnotationType} is a {@link javax.inject.Scope} annotation.
*/
public static boolean isScope(TypeElement scopeAnnotationType) {
return isAnnotationPresent(scopeAnnotationType, javax.inject.Scope.class);
}
/** Returns {@code true} if this scope is the {@link Singleton @Singleton} scope. */
public final boolean isSingleton() {
return isScope(Singleton.class);
}
/** Returns {@code true} if this scope is the {@link Reusable @Reusable} scope. */
public final boolean isReusable() {
return isScope(Reusable.class);
}
/** Returns {@code true} if this scope is the {@link ProductionScope @ProductionScope} scope. */
public final boolean isProductionScope() {
return isScope(ProductionScope.class);
}
private boolean isScope(Class<? extends Annotation> annotation) {
return scopeAnnotationElement().getQualifiedName().contentEquals(annotation.getCanonicalName());
}
/** Returns a debug representation of the scope. */
@Override
public String toString() {
return scopeAnnotation().toString();
}
}