function set($key, $value)
{
parent::set($key, $value);
// caching is turned off
if (!$GLOBALS['external_cache_enabled']) {
return;
}
$external_key = $this->_realKey($key);
if (EXTERNAL_CACHE_DEBUG) {
SugarCache::log("Step 3: Converting key ({$key}) to external key ({$external_key})");
}
zput($external_key, $value, $this->timeout);
if (EXTERNAL_CACHE_DEBUG) {
SugarCache::log("Step 4: Added key to sMash cache {$external_key} with value ({$value}) to be stored for " . EXTERNAL_CACHE_INTERVAL_SECONDS . " seconds");
}
}
/**
* Performs basic logging for messages generated by the external caching mechanism
*
* Currently this only outputs directly to the screen as it's only used internally.
*
* There are five supported $type values:
* neutral :: just a log message with information value
* pass :: a pass that attention should be brought to
* lightpass :: a pass without much consequence
* fail :: a fail that attention should be brought to
* lightfail :: a failure without much consequence, or one that might succeed later in
* the execution chain
*
* @param string $msg Message to output. Note it will be filtered through htmlspecialchars()
* @param string $type Type of message to output
*/
function log($msg, $type = 'neutral')
{
static $messages = array();
static $valid_types = array('neutral' => '', 'pass' => '', 'lightpass' => '', 'fail' => '', 'lightfail' => '');
if (!isset($valid_types[$type])) {
SugarCache::log("Invalid type provided: {$type}", 'fail');
$type = 'neutral';
}
$session_id = session_id();
if (empty($session_id)) {
// add to stack of messages to output after the session starts so we don't kill the headers
$messages[] = array('message' => htmlspecialchars($msg), 'type' => $type);
} else {
if ($messages !== false) {
// output base styles on first round trip - this doesn't worry that its
// not in the proper place as its for debugging purposes only.
echo "<style type='text/css'>" . "hr +span { padding:3px 5px; display:block; } " . "hr +.pass { background-color:green; color: white; } " . "hr +.lightpass { background-color: #CFC; color:black; }" . "hr +.fail { background-color:red; color:white; } " . "hr +.lightfail { background-color:#F99; color: black; }" . "hr +.neutral { background-color:#FFFFE0; color:black; } " . "</style>";
}
if ($messages !== false && count($messages) > 0) {
// clear stack of messages;
echo '<hr />Messages logged prior to session starting...<hr />', "\n";
foreach ($messages as $id => $old_msg) {
echo "<hr /><span class='{$old_msg['type']}'>{$id} -- {$old_msg['message']}</span><hr />\n";
}
echo "<hr />End of messages prior to session starting...<hr />\n";
}
$messages = false;
$msg = htmlspecialchars($msg);
echo "<hr /><span class='{$type}'>{$msg}</span><hr />\n";
}
}
/**
* Internal -- Determine if there is an external cache available for use.
* Currently only Zend Platform is supported.
*/
function check_cache()
{
if (EXTERNAL_CACHE_DEBUG) {
SugarCache::log("Checking cache");
}
if ($GLOBALS['external_cache_checked'] == false) {
$GLOBALS['external_cache_checked'] = true;
$GLOBALS['external_cache_object'] = SugarCache::discover();
}
if (EXTERNAL_CACHE_DEBUG) {
SugarCache::log("Checking cache: " . var_export($GLOBALS['external_cache_enabled'], true));
}
}
function _processGet($key, $value)
{
if (!empty($value)) {
if (EXTERNAL_CACHE_DEBUG) {
SugarCache::log("{$this->_name}:: Retrieved from external cache: {$key}", 'pass');
}
$GLOBALS['external_cache_request_external_hits']++;
$this->_cache[$key] = $value;
return $this->_cache[$key];
}
if (EXTERNAL_CACHE_DEBUG) {
SugarCache::log("{$this->_name}:: External cache retrieve failed: {$key}", 'fail');
}
return null;
}
/**
* Retrieve the value of a given key
*
* @param string $key
* @return mixed
*/
function get($key)
{
$GLOBALS['external_cache_request_local_total']++;
if (isset($this->_cache[$key])) {
if (EXTERNAL_CACHE_DEBUG) {
SugarCache::log("BASE: found {$key}", 'lightpass');
}
$GLOBALS['external_cache_request_local_hits']++;
return $this->_cache[$key];
} else {
if (EXTERNAL_CACHE_DEBUG) {
$type = $this->_my_class_name == 'sugarcache_base' ? 'fail' : 'lightfail';
SugarCache::log("BASE: unable to locate {$key}", $type);
}
}
}
