/*
* JBoss, Home of Professional Open Source
* Copyright 2009, Red Hat, Inc. and/or its affiliates, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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.hibernate.validator.internal.engine;

import java.util.ArrayList;
import java.util.List;
import javax.validation.ConstraintValidatorFactory;
import javax.validation.MessageInterpolator;
import javax.validation.ParameterNameProvider;
import javax.validation.TraversableResolver;
import javax.validation.Validator;

import org.hibernate.validator.HibernateValidatorContext;
import org.hibernate.validator.spi.valuehandling.ValidatedValueUnwrapper;

/**
 * @author Emmanuel Bernard
 * @author Hardy Ferentschik
 * @author Kevin Pollet <kevin.pollet@serli.com> (C) 2011 SERLI
 * @author Gunnar Morling
 */
public class ValidatorContextImpl implements HibernateValidatorContext {

	private final ValidatorFactoryImpl validatorFactory;

	private MessageInterpolator messageInterpolator;
	private TraversableResolver traversableResolver;
	private ConstraintValidatorFactory constraintValidatorFactory;
	private ParameterNameProvider parameterNameProvider;

	private boolean failFast;
	private final List<ValidatedValueUnwrapper<?>> validatedValueHandlers;

	public ValidatorContextImpl(ValidatorFactoryImpl validatorFactory) {
		this.validatorFactory = validatorFactory;
		this.messageInterpolator = validatorFactory.getMessageInterpolator();
		this.traversableResolver = validatorFactory.getTraversableResolver();
		this.constraintValidatorFactory = validatorFactory.getConstraintValidatorFactory();
		this.parameterNameProvider = validatorFactory.getParameterNameProvider();
		this.failFast = validatorFactory.isFailFast();
		this.validatedValueHandlers = new ArrayList<ValidatedValueUnwrapper<?>>(
				validatorFactory.getValidatedValueHandlers()
		);
	}

	@Override
	public HibernateValidatorContext messageInterpolator(MessageInterpolator messageInterpolator) {
		if ( messageInterpolator == null ) {
			this.messageInterpolator = validatorFactory.getMessageInterpolator();
		}
		else {
			this.messageInterpolator = messageInterpolator;
		}
		return this;
	}

	@Override
	public HibernateValidatorContext traversableResolver(TraversableResolver traversableResolver) {
		if ( traversableResolver == null ) {
			this.traversableResolver = validatorFactory.getTraversableResolver();
		}
		else {
			this.traversableResolver = traversableResolver;
		}
		return this;
	}

	@Override
	public HibernateValidatorContext constraintValidatorFactory(ConstraintValidatorFactory factory) {
		if ( factory == null ) {
			this.constraintValidatorFactory = validatorFactory.getConstraintValidatorFactory();
		}
		else {
			this.constraintValidatorFactory = factory;
		}
		return this;
	}

	@Override
	public HibernateValidatorContext parameterNameProvider(ParameterNameProvider parameterNameProvider) {
		if ( parameterNameProvider == null ) {
			this.parameterNameProvider = validatorFactory.getParameterNameProvider();
		}
		else {
			this.parameterNameProvider = parameterNameProvider;
		}
		return this;
	}

	@Override
	public HibernateValidatorContext failFast(boolean failFast) {
		this.failFast = failFast;
		return this;
	}

	@Override
	public HibernateValidatorContext addValidationValueHandler(ValidatedValueUnwrapper<?> handler) {
		this.validatedValueHandlers.add( handler );
		return this;
	}

	@Override
	public Validator getValidator() {
		return validatorFactory.createValidator(
				constraintValidatorFactory,
				messageInterpolator,
				traversableResolver,
				parameterNameProvider,
				failFast,
				validatedValueHandlers
		);
	}
}
