1 | <?php |
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2 | |
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3 | /* |
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4 | * This file is part of the Assetic package, an OpenSky project. |
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5 | * |
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6 | * (c) 2010-2012 OpenSky Project Inc |
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7 | * |
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8 | * For the full copyright and license information, please view the LICENSE |
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9 | * file that was distributed with this source code. |
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10 | */ |
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11 | |
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12 | namespace Assetic\Cache; |
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13 | |
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14 | /** |
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15 | * A simple filesystem cache. |
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16 | * |
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17 | * @author Kris Wallsmith <kris.wallsmith@gmail.com> |
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18 | */ |
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19 | class FilesystemCache implements CacheInterface |
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20 | { |
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21 | private $dir; |
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22 | |
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23 | public function __construct($dir) |
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24 | { |
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25 | $this->dir = $dir; |
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26 | } |
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27 | |
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28 | public function has($key) |
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29 | { |
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30 | $key = "expressocache-".$key; |
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31 | return file_exists($this->dir.'/'.$key); |
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32 | } |
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33 | |
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34 | public function get($key) |
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35 | { |
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36 | $key = "expressocache-".$key; |
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37 | $path = $this->dir.'/'.$key; |
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38 | |
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39 | if (!file_exists($path)) { |
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40 | throw new \RuntimeException('There is no cached value for '.$key); |
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41 | } |
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42 | |
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43 | return file_get_contents($path); |
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44 | } |
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45 | |
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46 | public function set($key, $value) |
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47 | { |
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48 | $key = "expressocache-".$key; |
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49 | if (!is_dir($this->dir) && false === @mkdir($this->dir, 0777, true)) { |
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50 | throw new \RuntimeException('Unable to create directory '.$this->dir); |
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51 | } |
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52 | |
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53 | $path = $this->dir.'/'.$key; |
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54 | |
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55 | if (false === @file_put_contents($path, $value)) { |
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56 | throw new \RuntimeException('Unable to write file '.$path); |
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57 | } |
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58 | } |
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59 | |
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60 | public function remove($key) |
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61 | { |
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62 | $key = "expressocache-".$key; |
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63 | $path = $this->dir.'/'.$key; |
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64 | |
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65 | if (file_exists($path) && false === @unlink($path)) { |
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66 | throw new \RuntimeException('Unable to remove file '.$path); |
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67 | } |
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68 | } |
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69 | } |
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