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/*******************************************************************************
 * Copyright 2012 Anteros Tecnologia
 *  
 * 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 br.com.anteros.bean.validation;

import br.com.anteros.bean.validation.xml.AnnotationProxyBuilder;
import br.com.anteros.validation.api.Payload;

import java.lang.annotation.Annotation;
import java.util.Set;

/**
 * Description: Adapt {@link AnnotationConstraintBuilder} to the {@link AppendValidation} interface.

 */
public class AppendValidationToBuilder extends BaseAppendValidation {
    private final AnnotationConstraintBuilder builder;

    /**
     * Create a new AppendValidationToBuilder instance.
     * @param builder
     */
    public AppendValidationToBuilder(AnnotationConstraintBuilder builder) {
        this.builder = builder;
    }

    /**
     * {@inheritDoc}
     */
    public  void preProcessValidation(ConstraintValidation validation) {
        // JSR-303 2.3:
        // Groups from the main constraint annotation are inherited by the composing annotations.
        // Any groups definition on a composing annotation is ignored.
        Set> inheritedGroups = builder.getConstraintValidation().getGroups();
        validation.setGroups(inheritedGroups);
        
        // JSR-303 2.3 p:
        // Payloads are also inherited
        Set> inheritedPayload = builder.getConstraintValidation().getPayload();
        validation.setPayload(inheritedPayload);

        // Inherited groups and payload values must also be replicated in the 
        // annotation, so it has to be substituted with a new proxy.
        T originalAnnot = validation.getAnnotation();
        AnnotationProxyBuilder apb = new AnnotationProxyBuilder(originalAnnot);
        apb.putValue(ConstraintAnnotationAttributes.GROUPS.getAttributeName(),
            inheritedGroups.toArray(new Class[inheritedGroups.size()]));
        apb.putValue(ConstraintAnnotationAttributes.PAYLOAD.getAttributeName(),
            inheritedPayload.toArray(new Class[inheritedPayload.size()]));
        T newAnnot = apb.createAnnotation();
        validation.setAnnotation(newAnnot);
    }

    /**
     * {@inheritDoc}
     */
    public  void performAppend(ConstraintValidation validation) {
        builder.addComposed(validation);
    }

    /**
     * Get inherited groups.
     * @return The set of groups from the parent constraint.
     */
    public Set> getInheritedGroups() {
        return builder.getConstraintValidation().getGroups();
    }

    /**
     * Get inherited payload.
     * @return The set of payloads from the parent constraint.
     */
    public Set> getInheritedPayload() {
        return builder.getConstraintValidation().getPayload();
    }

}