cdi-extender/src/test/java/org/apache/aries/cdi/container/test/MockInjectionPoint.java

/**
 * 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 org.apache.aries.cdi.container.test;

import java.lang.annotation.Annotation;
import java.lang.reflect.Member;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.Set;
import java.util.stream.Collectors;

import javax.enterprise.inject.spi.Annotated;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.InjectionPoint;

import org.apache.aries.cdi.container.internal.util.Sets;

public class MockInjectionPoint implements InjectionPoint {

	public MockInjectionPoint(Type type) {
		_type = type;
		_annotated = new MockAnnotated(_type);
		_qualifiers = Collections.emptySet();
	}

	public MockInjectionPoint(Type type, Set<Annotation> qualifiers) {
		_type = type;
		_annotated = new MockAnnotated(_type);
		_qualifiers = qualifiers;
	}

	@Override
	public Type getType() {
		return _type;
	}

	@Override
	public Set<Annotation> getQualifiers() {
		return _qualifiers;
	}

	@Override
	public Bean<?> getBean() {
		return null;
	}

	@Override
	public Member getMember() {
		return null;
	}

	@Override
	public Annotated getAnnotated() {
		return _annotated;
	}

	@Override
	public boolean isDelegate() {
		return false;
	}

	@Override
	public boolean isTransient() {
		return false;
	}

	@Override
	public String toString() {
		return getClass().getSimpleName() + "[" + _type + "]";
	}

	private final Type _type;
	private final Annotated _annotated;
	private final Set<Annotation> _qualifiers;

	private class MockAnnotated implements Annotated {

		public MockAnnotated(Type service) {
			_service = service;
		}

		@SuppressWarnings("unchecked")
		@Override
		public <T extends Annotation> T getAnnotation(Class<T> annotationType) {
			return _qualifiers.stream().filter(
				ann -> ann.annotationType().equals(annotationType)
			).map(ann -> (T)ann).findFirst().orElse(null);
		}

		@Override
		public Set<Annotation> getAnnotations() {
			return _qualifiers;
		}

		@SuppressWarnings("unchecked")
		@Override
		public <T extends Annotation> Set<T> getAnnotations(Class<T> annotationType) {
			return _qualifiers.stream().filter(
				ann -> ann.annotationType().equals(annotationType)
			).map(ann -> (T)ann).collect(Collectors.toSet());
		}

		@Override
		public Type getBaseType() {
			return _service;
		}

		@Override
		public Set<Type> getTypeClosure() {
			return Sets.hashSet(_service, Object.class);
		}

		@Override
		public boolean isAnnotationPresent(Class<? extends Annotation> annotationType) {
			return _qualifiers.stream().filter(
				ann -> ann.annotationType().equals(annotationType)
			).findFirst().isPresent();
		}

		private final Type _service;

	}

}