File "ServiceAddressTrait.php"

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<?php
/*
 * Copyright 2018 Google LLC
 * 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 Google Inc. 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 THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 */

namespace Google\ApiCore;

/**
 * Provides helper methods for service address handling.
 *
 * @todo (dwsupplee) serviceAddress is deprecated now in favor of
 *        apiEndpoint. Rename the trait/method in our next major release.
 */
trait ServiceAddressTrait
{
    private static $defaultPort = 443;

    /**
     * @param string $apiEndpoint
     * @return array
     * @throws ValidationException
     */
    private static function normalizeServiceAddress($apiEndpoint)
    {
        $components = explode(':', $apiEndpoint);
        if (count($components) == 2) {
            // Port is included in service address
            return [$components[0], $components[1]];
        } elseif (count($components) == 1) {
            // Port is not included - append default port
            return [$components[0], self::$defaultPort];
        } else {
            throw new ValidationException("Invalid apiEndpoint: $apiEndpoint");
        }
    }
}