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Add persistent caching to Source plugin

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Store and query a cache file to look for previously handled source
files.
This commit is contained in:
Ben Roberts
2011-12-13 08:29:18 +00:00
parent 44c72b132a
commit 0291ef051c
1 changed files with 18 additions and 3 deletions
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21
source/lib/DownloadDispatcher/Source/PluginBase.class.php
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@@ -2,11 +2,26 @@
class DownloadDispatcher_Source_PluginBase extends DownloadDispatcher_PluginBase { class DownloadDispatcher_Source_PluginBase extends DownloadDispatcher_PluginBase {
static protected $source_cache = array(); static protected $cache;
static protected $source_cache = null;
static protected $cache_file = 'source_cache';
static protected $cache_lifetime = 86400;
protected function init_cache() { protected function init_cache() {
if ( ! static::$cache) {
static::$cache = DownloadDispatcher_Main::instance()->cache();
}
if (is_null(static::$source_cache)) {
try {
static::$source_cache = static::$cache->fetch(static::$cache_file, static::$cache_lifetime);
} catch (SihnonFramework_Exception_CacheObjectNotFound $e) {
static::$source_cache = array();
}
}
if ( ! array_key_exists(get_called_class(), static::$source_cache)) { if ( ! array_key_exists(get_called_class(), static::$source_cache)) {
// TODO - attempt to load data from persistent storage
static::$source_cache[get_called_class()] = array(); static::$source_cache[get_called_class()] = array();
} }
} }
@@ -18,7 +33,7 @@ class DownloadDispatcher_Source_PluginBase extends DownloadDispatcher_PluginBase
static::$source_cache[get_called_class()][] = $file; static::$source_cache[get_called_class()][] = $file;
} }
// TODO - flush cache to persistent storage static::$cache->store($cache_file, static::$source_cache);
} }
protected function check_processed($file) { protected function check_processed($file) {