annotate vendor/zendframework/zend-feed/src/Writer/Writer.php @ 19:fa3358dc1485 tip

Add ndrum files
author Chris Cannam
date Wed, 28 Aug 2019 13:14:47 +0100
parents af1871eacc83
children
rev   line source
Chris@0 1 <?php
Chris@0 2 /**
Chris@0 3 * Zend Framework (http://framework.zend.com/)
Chris@0 4 *
Chris@0 5 * @link http://github.com/zendframework/zf2 for the canonical source repository
Chris@0 6 * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
Chris@0 7 * @license http://framework.zend.com/license/new-bsd New BSD License
Chris@0 8 */
Chris@0 9
Chris@0 10 namespace Zend\Feed\Writer;
Chris@0 11
Chris@0 12 /**
Chris@0 13 */
Chris@0 14 class Writer
Chris@0 15 {
Chris@0 16 /**
Chris@0 17 * Namespace constants
Chris@0 18 */
Chris@0 19 const NAMESPACE_ATOM_03 = 'http://purl.org/atom/ns#';
Chris@0 20 const NAMESPACE_ATOM_10 = 'http://www.w3.org/2005/Atom';
Chris@0 21 const NAMESPACE_RDF = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#';
Chris@0 22 const NAMESPACE_RSS_090 = 'http://my.netscape.com/rdf/simple/0.9/';
Chris@0 23 const NAMESPACE_RSS_10 = 'http://purl.org/rss/1.0/';
Chris@0 24
Chris@0 25 /**
Chris@0 26 * Feed type constants
Chris@0 27 */
Chris@0 28 const TYPE_ANY = 'any';
Chris@0 29 const TYPE_ATOM_03 = 'atom-03';
Chris@0 30 const TYPE_ATOM_10 = 'atom-10';
Chris@0 31 const TYPE_ATOM_ANY = 'atom';
Chris@0 32 const TYPE_RSS_090 = 'rss-090';
Chris@0 33 const TYPE_RSS_091 = 'rss-091';
Chris@0 34 const TYPE_RSS_091_NETSCAPE = 'rss-091n';
Chris@0 35 const TYPE_RSS_091_USERLAND = 'rss-091u';
Chris@0 36 const TYPE_RSS_092 = 'rss-092';
Chris@0 37 const TYPE_RSS_093 = 'rss-093';
Chris@0 38 const TYPE_RSS_094 = 'rss-094';
Chris@0 39 const TYPE_RSS_10 = 'rss-10';
Chris@0 40 const TYPE_RSS_20 = 'rss-20';
Chris@0 41 const TYPE_RSS_ANY = 'rss';
Chris@0 42
Chris@0 43 /**
Chris@0 44 * @var ExtensionManagerInterface
Chris@0 45 */
Chris@0 46 protected static $extensionManager = null;
Chris@0 47
Chris@0 48 /**
Chris@0 49 * Array of registered extensions by class postfix (after the base class
Chris@0 50 * name) across four categories - data containers and renderers for entry
Chris@0 51 * and feed levels.
Chris@0 52 *
Chris@0 53 * @var array
Chris@0 54 */
Chris@0 55 protected static $extensions = [
Chris@0 56 'entry' => [],
Chris@0 57 'feed' => [],
Chris@0 58 'entryRenderer' => [],
Chris@0 59 'feedRenderer' => [],
Chris@0 60 ];
Chris@0 61
Chris@0 62 /**
Chris@0 63 * Set plugin loader for use with Extensions
Chris@0 64 *
Chris@0 65 * @param ExtensionManagerInterface
Chris@0 66 */
Chris@0 67 public static function setExtensionManager(ExtensionManagerInterface $extensionManager)
Chris@0 68 {
Chris@0 69 static::$extensionManager = $extensionManager;
Chris@0 70 }
Chris@0 71
Chris@0 72 /**
Chris@0 73 * Get plugin manager for use with Extensions
Chris@0 74 *
Chris@0 75 * @return ExtensionManagerInterface
Chris@0 76 */
Chris@0 77 public static function getExtensionManager()
Chris@0 78 {
Chris@12 79 if (! isset(static::$extensionManager)) {
Chris@0 80 static::setExtensionManager(new ExtensionManager());
Chris@0 81 }
Chris@0 82 return static::$extensionManager;
Chris@0 83 }
Chris@0 84
Chris@0 85 /**
Chris@0 86 * Register an Extension by name
Chris@0 87 *
Chris@0 88 * @param string $name
Chris@0 89 * @return void
Chris@0 90 * @throws Exception\RuntimeException if unable to resolve Extension class
Chris@0 91 */
Chris@0 92 public static function registerExtension($name)
Chris@0 93 {
Chris@16 94 if (! static::hasExtension($name)) {
Chris@0 95 throw new Exception\RuntimeException(sprintf(
Chris@16 96 'Could not load extension "%s" using Plugin Loader.'
Chris@16 97 . ' Check prefix paths are configured and extension exists.',
Chris@0 98 $name
Chris@0 99 ));
Chris@0 100 }
Chris@16 101
Chris@16 102 if (static::isRegistered($name)) {
Chris@16 103 return;
Chris@16 104 }
Chris@16 105
Chris@16 106 $manager = static::getExtensionManager();
Chris@16 107
Chris@16 108 $feedName = $name . '\Feed';
Chris@0 109 if ($manager->has($feedName)) {
Chris@0 110 static::$extensions['feed'][] = $feedName;
Chris@0 111 }
Chris@16 112
Chris@16 113 $entryName = $name . '\Entry';
Chris@0 114 if ($manager->has($entryName)) {
Chris@0 115 static::$extensions['entry'][] = $entryName;
Chris@0 116 }
Chris@16 117
Chris@16 118 $feedRendererName = $name . '\Renderer\Feed';
Chris@0 119 if ($manager->has($feedRendererName)) {
Chris@0 120 static::$extensions['feedRenderer'][] = $feedRendererName;
Chris@0 121 }
Chris@16 122
Chris@16 123 $entryRendererName = $name . '\Renderer\Entry';
Chris@0 124 if ($manager->has($entryRendererName)) {
Chris@0 125 static::$extensions['entryRenderer'][] = $entryRendererName;
Chris@0 126 }
Chris@0 127 }
Chris@0 128
Chris@0 129 /**
Chris@0 130 * Is a given named Extension registered?
Chris@0 131 *
Chris@0 132 * @param string $extensionName
Chris@0 133 * @return bool
Chris@0 134 */
Chris@0 135 public static function isRegistered($extensionName)
Chris@0 136 {
Chris@0 137 $feedName = $extensionName . '\Feed';
Chris@0 138 $entryName = $extensionName . '\Entry';
Chris@0 139 $feedRendererName = $extensionName . '\Renderer\Feed';
Chris@0 140 $entryRendererName = $extensionName . '\Renderer\Entry';
Chris@0 141 if (in_array($feedName, static::$extensions['feed'])
Chris@0 142 || in_array($entryName, static::$extensions['entry'])
Chris@0 143 || in_array($feedRendererName, static::$extensions['feedRenderer'])
Chris@0 144 || in_array($entryRendererName, static::$extensions['entryRenderer'])
Chris@0 145 ) {
Chris@0 146 return true;
Chris@0 147 }
Chris@0 148 return false;
Chris@0 149 }
Chris@0 150
Chris@0 151 /**
Chris@0 152 * Get a list of extensions
Chris@0 153 *
Chris@0 154 * @return array
Chris@0 155 */
Chris@0 156 public static function getExtensions()
Chris@0 157 {
Chris@0 158 return static::$extensions;
Chris@0 159 }
Chris@0 160
Chris@0 161 /**
Chris@0 162 * Reset class state to defaults
Chris@0 163 *
Chris@0 164 * @return void
Chris@0 165 */
Chris@0 166 public static function reset()
Chris@0 167 {
Chris@0 168 static::$extensionManager = null;
Chris@0 169 static::$extensions = [
Chris@0 170 'entry' => [],
Chris@0 171 'feed' => [],
Chris@0 172 'entryRenderer' => [],
Chris@0 173 'feedRenderer' => [],
Chris@0 174 ];
Chris@0 175 }
Chris@0 176
Chris@0 177 /**
Chris@0 178 * Register core (default) extensions
Chris@0 179 *
Chris@0 180 * @return void
Chris@0 181 */
Chris@0 182 public static function registerCoreExtensions()
Chris@0 183 {
Chris@0 184 static::registerExtension('DublinCore');
Chris@0 185 static::registerExtension('Content');
Chris@0 186 static::registerExtension('Atom');
Chris@0 187 static::registerExtension('Slash');
Chris@0 188 static::registerExtension('WellFormedWeb');
Chris@0 189 static::registerExtension('Threading');
Chris@0 190 static::registerExtension('ITunes');
Chris@16 191
Chris@16 192 // Added in 2.10.0; check for it conditionally
Chris@16 193 static::hasExtension('GooglePlayPodcast')
Chris@16 194 ? static::registerExtension('GooglePlayPodcast')
Chris@16 195 : trigger_error(
Chris@16 196 sprintf(
Chris@16 197 'Please update your %1$s\ExtensionManagerInterface implementation to add entries for'
Chris@16 198 . ' %1$s\Extension\GooglePlayPodcast\Entry,'
Chris@16 199 . ' %1$s\Extension\GooglePlayPodcast\Feed,'
Chris@16 200 . ' %1$s\Extension\GooglePlayPodcast\Renderer\Entry,'
Chris@16 201 . ' and %1$s\Extension\GooglePlayPodcast\Renderer\Feed.',
Chris@16 202 __NAMESPACE__
Chris@16 203 ),
Chris@16 204 \E_USER_NOTICE
Chris@16 205 );
Chris@0 206 }
Chris@0 207
Chris@18 208 /**
Chris@18 209 * @deprecated This method is deprecated and will be removed with version 3.0
Chris@18 210 * Use PHP's lcfirst function instead. @see https://php.net/manual/function.lcfirst.php
Chris@18 211 * @param string $str
Chris@18 212 * @return string
Chris@18 213 */
Chris@0 214 public static function lcfirst($str)
Chris@0 215 {
Chris@18 216 return lcfirst($str);
Chris@0 217 }
Chris@16 218
Chris@16 219 /**
Chris@16 220 * Does the extension manager have the named extension?
Chris@16 221 *
Chris@16 222 * This method exists to allow us to test if an extension is present in the
Chris@16 223 * extension manager. It may be used by registerExtension() to determine if
Chris@16 224 * the extension has items present in the manager, or by
Chris@16 225 * registerCoreExtension() to determine if the core extension has entries
Chris@16 226 * in the extension manager. In the latter case, this can be useful when
Chris@16 227 * adding new extensions in a minor release, as custom extension manager
Chris@16 228 * implementations may not yet have an entry for the extension, which would
Chris@16 229 * then otherwise cause registerExtension() to fail.
Chris@16 230 *
Chris@16 231 * @param string $name
Chris@16 232 * @return bool
Chris@16 233 */
Chris@16 234 protected static function hasExtension($name)
Chris@16 235 {
Chris@16 236 $manager = static::getExtensionManager();
Chris@16 237
Chris@16 238 $feedName = $name . '\Feed';
Chris@16 239 $entryName = $name . '\Entry';
Chris@16 240 $feedRendererName = $name . '\Renderer\Feed';
Chris@16 241 $entryRendererName = $name . '\Renderer\Entry';
Chris@16 242
Chris@16 243 return $manager->has($feedName)
Chris@16 244 || $manager->has($entryName)
Chris@16 245 || $manager->has($feedRendererName)
Chris@16 246 || $manager->has($entryRendererName);
Chris@16 247 }
Chris@0 248 }