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/*
 * Copyright 2017 - 2023 the original author or authors.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see [http://www.gnu.org/licenses/]
 */

package cn.taketoday.buildpack.platform.docker.configuration;

import java.util.Base64;

import com.fasterxml.jackson.core.JsonProcessingException;

import cn.taketoday.buildpack.platform.json.SharedObjectMapper;

/**
 * {@link DockerRegistryAuthentication} that uses a Base64 encoded auth header value based
 * on the JSON created from the instance.
 *
 * @author Scott Frederick
 */
class JsonEncodedDockerRegistryAuthentication implements DockerRegistryAuthentication {

  private String authHeader;

  @Override
  public String getAuthHeader() {
    return this.authHeader;
  }

  protected void createAuthHeader() {
    try {
      this.authHeader = Base64.getUrlEncoder().encodeToString(SharedObjectMapper.get().writeValueAsBytes(this));
    }
    catch (JsonProcessingException ex) {
      throw new IllegalStateException("Error creating Docker registry authentication header", ex);
    }
  }

}