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/*
 * Copyright 2013 serso aka se.solovyev
 *
 * 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.
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 * Contact details
 *
 * Email: [email protected]
 * Site:  http://se.solovyev.org/java/jcl
 */

package org.solovyev.common.security;

import org.solovyev.common.Converter;

import javax.annotation.Nonnull;

/**
 * User: serso
 * Date: 2/9/13
 * Time: 5:23 PM
 */
public class SecurityServiceConverter implements SecurityService {

	@Nonnull
	private final SecurityService securityService;

	@Nonnull
	private final Cipherer cipherer;

	@Nonnull
	private final HashProvider hashProvider;

	private SecurityServiceConverter(@Nonnull SecurityService securityService,
									 @Nonnull Cipherer cipherer,
									 @Nonnull HashProvider hashProvider) {
		this.securityService = securityService;
		this.cipherer = cipherer;
		this.hashProvider = hashProvider;
	}

	@Nonnull
	public static  SecurityService wrap(@Nonnull SecurityService securityService,
													@Nonnull Converter decoder,
													@Nonnull Converter encoder) {
		final Cipherer cipherer = TypedCipherer.newInstance(securityService.getCipherer(), decoder, encoder);
		final HashProvider hashProvider = TypedHashProvider.newInstance(securityService.getHashProvider(), decoder, encoder);
		return new SecurityServiceConverter(securityService, cipherer, hashProvider);
	}

	@Nonnull
	public static  SecurityServiceConverter wrap(@Nonnull SecurityService securityService,
																@Nonnull Converter decryptedDecoder,
																@Nonnull Converter decryptedEncoder,
																@Nonnull Converter encryptedDecoder,
																@Nonnull Converter encryptedEncoder) {
		return wrap(securityService, decryptedDecoder, decryptedEncoder, encryptedDecoder, encryptedEncoder, encryptedEncoder);
	}

	@Nonnull
	public static  SecurityServiceConverter wrap(@Nonnull SecurityService securityService,
																   @Nonnull Converter decryptedDecoder,
																   @Nonnull Converter decryptedEncoder,
																   @Nonnull Converter encryptedDecoder,
																   @Nonnull Converter encryptedEncoder,
																   @Nonnull Converter hashConverter) {
		final Cipherer cipherer = TypedCipherer.newInstance(securityService.getCipherer(), decryptedDecoder, decryptedEncoder, encryptedDecoder, encryptedEncoder);
		final HashProvider hashProvider = TypedHashProvider.newInstance(securityService.getHashProvider(), decryptedDecoder, hashConverter);
		return new SecurityServiceConverter(securityService, cipherer, hashProvider);
	}

	@Nonnull
	@Override
	public SaltGenerator getSaltGenerator() {
		return securityService.getSaltGenerator();
	}

	@Nonnull
	@Override
	public SecretKeyProvider getSecretKeyProvider() {
		return securityService.getSecretKeyProvider();
	}

	@Nonnull
	@Override
	public HashProvider getHashProvider() {
		return hashProvider;
	}

	@Nonnull
	@Override
	public Cipherer getCipherer() {
		return cipherer;
	}
}