示例#1
0
 /**
  * Add an entry to the cache. If there's already an
  * entry then for this host then the entry will be
  * replaced.
  */
 public function put(\blaze\lang\String $host, \blaze\lang\Object $address)
 {
     $policy = $this->getPolicy();
     if ($policy == InetAddressCachePolicy::NEVER) {
         return $this;
     }
     // purge any expired entries
     if ($policy != InetAddressCachePolicy::FOREVER) {
         // As we iterate in insertion order we can
         // terminate when a non-expired entry is found.
         $expired = new LinkedList();
         $i = $cache->keySet()->iterator();
         $now = System::currentTimeMillis();
         while ($i->hasNext()) {
             $key = $i->next();
             $entry = $cache->get($key);
             if ($entry->expiration >= 0 && $entry->expiration < $now) {
                 $expired->add($key);
             } else {
                 break;
             }
         }
         $i = $expired->iterator();
         while ($i->hasNext()) {
             $cache->remove($i->next());
         }
     }
     // create new entry and add it to the cache
     // -- as a HashMap replaces existing entries we
     //    don't need to explicitly check if there is
     //    already an entry for this host.
     $expiration;
     if ($policy == InetAddressCachePolicy::FOREVER) {
         $expiration = -1;
     } else {
         $expiration = System::currentTimeMillis() + $policy * 1000;
     }
     $entry = new CacheEntry($address, $expiration);
     $cache->put($host, $entry);
     return $this;
 }