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/*
 * Copyright © 2021 Mark Raynsford  https://www.io7m.com
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

package com.io7m.xstructural.cmdline.internal;

import com.io7m.xstructural.api.XSProcessorFactoryType;

import java.util.ServiceLoader;

/**
 * Functions over services.
 */

public final class XSServices
{
  private XSServices()
  {

  }

  /**
   * @return The available processors
   */

  public static XSProcessorFactoryType findProcessors()
  {
    return ServiceLoader.load(XSProcessorFactoryType.class)
      .findFirst()
      .orElseThrow(() -> new IllegalStateException(noServicesMessage()));
  }

  private static String noServicesMessage()
  {
    return String.format(
      "No available services of type: %s",
      XSProcessorFactoryType.class.getCanonicalName());
  }
}