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1 | <?php |
2 | /* | |
3 | +--------------------------------------------------------------------+ | |
232624b1 | 4 | | CiviCRM version 4.4 | |
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5 | +--------------------------------------------------------------------+ |
6 | | Copyright CiviCRM LLC (c) 2004-2013 | | |
7 | +--------------------------------------------------------------------+ | |
8 | | This file is a part of CiviCRM. | | |
9 | | | | |
10 | | CiviCRM is free software; you can copy, modify, and distribute it | | |
11 | | under the terms of the GNU Affero General Public License | | |
12 | | Version 3, 19 November 2007 and the CiviCRM Licensing Exception. | | |
13 | | | | |
14 | | CiviCRM is distributed in the hope that it will be useful, but | | |
15 | | WITHOUT ANY WARRANTY; without even the implied warranty of | | |
16 | | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | | |
17 | | See the GNU Affero General Public License for more details. | | |
18 | | | | |
19 | | You should have received a copy of the GNU Affero General Public | | |
20 | | License and the CiviCRM Licensing Exception along | | |
21 | | with this program; if not, contact CiviCRM LLC | | |
22 | | at info[AT]civicrm[DOT]org. If you have questions about the | | |
23 | | GNU Affero General Public License or the licensing of CiviCRM, | | |
24 | | see the CiviCRM license FAQ at http://civicrm.org/licensing | | |
25 | +--------------------------------------------------------------------+ | |
26 | */ | |
27 | ||
28 | /** | |
29 | * @package CRM | |
30 | * @copyright CiviCRM LLC (c) 2004-2013 | |
31 | * $Id$ | |
32 | */ | |
33 | ||
34 | /** | |
35 | * An extension container is a locally-accessible source tree which can be | |
36 | * scanned for extensions. | |
37 | */ | |
38 | class CRM_Extension_Container_Collection implements CRM_Extension_Container_Interface { | |
39 | ||
40 | /** | |
41 | * @var array ($name => CRM_Extension_Container_Interface) | |
42 | * | |
43 | * Note: Treat as private. This is only public to facilitate debugging. | |
44 | */ | |
45 | public $containers; | |
46 | ||
47 | /** | |
48 | * @var CRM_Utils_Cache_Interface|NULL | |
49 | * | |
50 | * Note: Treat as private. This is only public to facilitate debugging. | |
51 | */ | |
52 | public $cache; | |
53 | ||
54 | /** | |
55 | * @var string the cache key used for any data stored by this container | |
56 | * | |
57 | * Note: Treat as private. This is only public to facilitate debugging. | |
58 | */ | |
59 | public $cacheKey; | |
60 | ||
61 | /** | |
62 | * @var array ($key => $containerName) | |
63 | * | |
64 | * Note: Treat as private. This is only public to facilitate debugging. | |
65 | */ | |
66 | public $k2c; | |
67 | ||
68 | /** | |
69 | * @param array $containers array($name => CRM_Extension_Container_Interface) in order from highest priority (winners) to lowest priority (losers) | |
70 | * @param CRM_Utils_Cache_Interface $cache | |
71 | * @param string $cacheKey unique name for this container | |
72 | */ | |
73 | public function __construct($containers, CRM_Utils_Cache_Interface $cache = NULL, $cacheKey = NULL) { | |
74 | $this->containers = $containers; | |
75 | $this->cache = $cache; | |
76 | $this->cacheKey = $cacheKey; | |
77 | } | |
78 | ||
79 | /** | |
80 | * {@inheritdoc} | |
81 | */ | |
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82 | public function checkRequirements() { |
83 | $errors = array(); | |
84 | foreach ($this->containers as $container) { | |
85 | $errors = array_merge($errors, $container->checkRequirements()); | |
86 | } | |
87 | return $errors; | |
88 | } | |
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89 | |
90 | /** | |
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91 | * {@inheritdoc} |
92 | */ | |
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93 | public function getKeys() { |
94 | $k2c = $this->getKeysToContainer(); | |
95 | return array_keys($k2c); | |
96 | } | |
97 | ||
98 | /** | |
99 | * {@inheritdoc} | |
100 | */ | |
101 | public function getPath($key) { | |
102 | return $this->getContainer($key)->getPath($key); | |
103 | } | |
104 | ||
105 | /** | |
106 | * {@inheritdoc} | |
107 | */ | |
108 | public function getResUrl($key) { | |
109 | return $this->getContainer($key)->getResUrl($key); | |
110 | } | |
111 | ||
112 | /** | |
113 | * {@inheritdoc} | |
114 | */ | |
115 | public function refresh() { | |
116 | if ($this->cache) { | |
117 | $this->cache->delete($this->cacheKey); | |
118 | } | |
119 | foreach ($this->containers as $container) { | |
120 | $container->refresh(); | |
121 | } | |
122 | } | |
123 | ||
124 | /** | |
125 | * Get the container which defines a particular key | |
126 | * | |
127 | * @return CRM_Extension_Container_Interface | |
128 | * @throws CRM_Extension_Exception | |
129 | */ | |
130 | public function getContainer($key) { | |
131 | $k2c = $this->getKeysToContainer(); | |
22c810a7 | 132 | if (isset($k2c[$key]) && isset($this->containers[$k2c[$key]])) { |
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133 | return $this->containers[$k2c[$key]]; |
134 | } else { | |
135 | throw new CRM_Extension_Exception_MissingException("Unknown extension: $key"); | |
136 | } | |
137 | } | |
138 | ||
139 | /** | |
140 | * Get a list of all keys in these containers -- and the | |
141 | * name of the container which defines each key. | |
142 | * | |
143 | * @return array ($key => $containerName) | |
144 | */ | |
145 | public function getKeysToContainer() { | |
146 | if ($this->cache) { | |
147 | $k2c = $this->cache->get($this->cacheKey); | |
148 | } | |
149 | if (!is_array($k2c)) { | |
150 | $k2c = array(); | |
151 | $containerNames = array_reverse(array_keys($this->containers)); | |
152 | foreach ($containerNames as $name) { | |
153 | $keys = $this->containers[$name]->getKeys(); | |
154 | foreach ($keys as $key) { | |
155 | $k2c[$key] = $name; | |
156 | } | |
157 | } | |
158 | if ($this->cache) { | |
159 | $this->cache->set($this->cacheKey, $k2c); | |
160 | } | |
161 | } | |
162 | return $k2c; | |
163 | } | |
164 | } |