/*
    * Copyright 2010 James Pether Sörling
    *
    * 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.
   *
   *	$Id$
   *  $HeadURL$
  */
  package com.hack23.cia.service.impl;
  
  import java.util.Collection;
  
  import javax.annotation.PostConstruct;
  
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
  import org.springframework.security.core.Authentication;
  import org.springframework.security.core.GrantedAuthority;
  import org.springframework.security.core.authority.AuthorityUtils;
  import org.springframework.security.core.context.SecurityContextHolder;
  import org.springframework.stereotype.Component;
  
  import com.hack23.cia.service.api.ConfigurationManager;
  
  /**
   * The Class BootstrapDefaultConfig.
   */
  @Component
  public final class BootstrapDefaultConfig {
  
  	/** The configuration manager. */
  	@Autowired
  	private ConfigurationManager configurationManager;
  
  	/**
  	 * Instantiates a new bootstrap default config.
  	 */
  	public BootstrapDefaultConfig() {
  		super();
  	}
  
  	/**
  	 * Creates the default configuration.
  	 */
  	@PostConstruct
  	public void createDefaultConfiguration() {
  		configureAuthentication("ROLE_ADMIN");
  		configurationManager.createDefaultConfigIfEmpty();
  		configurationManager.createDefaultLanguagesIfEmpty();
  		clearAuthentication();
  	}
  
  	/**
  	 * Clear authentication.
  	 */
  	private static void clearAuthentication() {
  		SecurityContextHolder.getContext().setAuthentication(null);
  	}
  
  	/**
  	 * Configure authentication.
  	 *
  	 * @param role
  	 *            the role
  	 */
  	private static void configureAuthentication(final String role) {
  		final Collection<GrantedAuthority> authorities = AuthorityUtils.createAuthorityList(role);
  		final Authentication authentication = new UsernamePasswordAuthenticationToken("user", role, authorities);
  		SecurityContextHolder.getContext().setAuthentication(authentication);
  	}
  
  }