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1<?php
2
3/**
4 * AbstractBase for Resolver Driver
5 *
6 * PHP version 8
7 *
8 * Copyright (C) Villanova University 2015.
9 *
10 * last update: 2011-04-13
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2,
14 * as published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
24 *
25 * @category VuFind
26 * @package  Resolver_Drivers
27 * @author   Demian Katz <demian.katz@villanova.edu>
28 * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
29 * @link     https://vufind.org/wiki/development:plugins:link_resolver_drivers Wiki
30 */
31
32namespace VuFind\Resolver\Driver;
33
34/**
35 * AbstractBase for Resolver Driver
36 *
37 * @category VuFind
38 * @package  Resolver_Drivers
39 * @author   Demian Katz <demian.katz@villanova.edu>
40 * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
41 * @link     https://vufind.org/wiki/development:plugins:link_resolver_drivers Wiki
42 */
43abstract class AbstractBase implements DriverInterface
44{
45    /**
46     * Base URL for link resolver
47     *
48     * @var string
49     */
50    protected $baseUrl;
51
52    /**
53     * Constructor
54     *
55     * @param string $baseUrl Base URL for link resolver
56     */
57    public function __construct($baseUrl)
58    {
59        $this->baseUrl = $baseUrl;
60    }
61
62    /**
63     * Get Resolver Url
64     *
65     * Transform the OpenURL as needed to get a working link to the resolver.
66     *
67     * @param string $openURL openURL (url-encoded)
68     *
69     * @return string Returns resolver specific url
70     */
71    public function getResolverUrl($openURL)
72    {
73        $url = $this->baseUrl;
74        $url .= !str_contains($url, '?') ? '?' : '&';
75        $url .= $openURL;
76        return $url;
77    }
78
79    /**
80     * This controls whether a "More options" link will be shown below the fetched
81     * resolver links eventually linking to the resolver page previously being
82     * parsed.
83     * This is especially useful for resolver such as the JOP resolver returning
84     * XML which would not be of any immediate use for the user.
85     *
86     * @return bool
87     */
88    public function supportsMoreOptionsLink()
89    {
90        return true;
91    }
92}