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A Java library to store password securely

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/*
 * Copyright © 2019, Java Keyring
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the  nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL  BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.github.javakeyring.internal.windows;

import com.github.javakeyring.BackendNotSupportedException;
import com.sun.jna.Native;

/**
 * Global native library manager.
 */
class NativeLibraryManager {

  /**
   * An instance of Advapi32.
   */
  private final Advapi32 advapi32;

  /**
   * An instance of Kernel32.
   */
  private final Kernel32 kernel32;
  
  public NativeLibraryManager() throws BackendNotSupportedException {
    try {
      advapi32 = (Advapi32) Native.load("Advapi32", Advapi32.class);
      kernel32 = (Kernel32) Native.load("Kernel32", Kernel32.class);
    } catch (UnsatisfiedLinkError ex) {
      throw new BackendNotSupportedException("Failed to load native library", ex);
    }
  }
  
  public Advapi32 getAdvapi32() {
    return advapi32;
  }

  public Kernel32 getKernel32() {
    return kernel32;
  }
}