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/*
 * Fabric3
 * Copyright (c) 2009-2015 Metaform Systems
 *
 * 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.fabric3.introspection.java.annotation;

import java.lang.reflect.Field;

import org.fabric3.api.annotation.model.Binding;
import org.fabric3.api.model.type.java.InjectingComponentType;
import org.fabric3.spi.introspection.IntrospectionContext;
import org.fabric3.spi.introspection.java.ReferenceProcessor;
import org.fabric3.spi.introspection.java.annotation.AbstractAnnotationProcessor;
import org.oasisopen.sca.annotation.Reference;

/**
 * Creates a component type reference if one is not explicitly declared when an annotation annotated with the {@link Binding} annotation is found.
 */
public class ImplicitBindingReferenceProcessor extends AbstractAnnotationProcessor {
    private ReferenceProcessor referenceProcessor;

    public ImplicitBindingReferenceProcessor(@Reference ReferenceProcessor referenceProcessor) {
        super(Binding.class);
        this.referenceProcessor = referenceProcessor;
    }

    public void visitField(Binding annotation, Field field, Class implClass, InjectingComponentType componentType, IntrospectionContext context) {
        if (field.isAnnotationPresent(Reference.class)) {
            return;
        }
        referenceProcessor.addDefinition(field, "", true, implClass, componentType, context);
    }
}