public static function hasCachedConfig($filepath)
{
logDebug("Looking in memcache for {$filepath}");
if (!function_exists("memcache_connect")) {
return false;
}
$key = LinkedDataApiCache::configCacheKey($filepath);
$mc = memcache_connect(PUELIA_MEMCACHE_HOST, PUELIA_MEMCACHE_PORT);
$cachedObject = $mc->get($key);
if ($cachedObject) {
return $cachedObject;
}
logDebug("No cached version of ConfigGraph from {$filepath}");
return false;
}
$ConfigGraph->init();
if ($selectedEndpointUri = $ConfigGraph->getEndpointUri()) {
logDebug("Endpoint Uri Selected: {$selectedEndpointUri}");
unset($CompleteConfigGraph);
$Response = new LinkedDataApiResponse($Request, $ConfigGraph, $HttpRequestFactory);
$Response->process();
break;
} else {
if ($docPath = $ConfigGraph->dataUriToEndpointItem($Request->getUri())) {
logDebug("Redirecting " . $Request->getUri() . " to {$docPath}");
header("Location: {$docPath}", 303);
exit;
}
}
}
if (!isset($selectedEndpointUri)) {
logDebug("No Endpoint Selected");
$Response = new LinkedDataApiResponse($Request, $CompleteConfigGraph);
if ($Request->getPathWithoutExtension() == $Request->getInstallSubDir() . CONFIG_PATH) {
logDebug("Serving ConfigGraph");
$Response->serveConfigGraph();
} else {
logDebug("URI Requested:" . $Request->getPathWithoutExtension());
$Response->process();
}
}
}
$Response->serve();
if (defined("PUELIA_SERVE_FROM_CACHE") and $Response->cacheable) {
LinkedDataApiCache::cacheResponse($Request, $Response);
}
private function decideToCheckTripleStore($pathWithoutExtension)
{
$this->useDatastore = $this->ConfigGraph->get_first_literal($this->ConfigGraph->getEndpointUri(), API . 'enableCache');
$this->useDatastore = $this->useDatastore === 'true' ? true : false;
if ($this->useDatastore == true) {
//if caching is enabled
if (defined("PUELIA_SERVE_FROM_CACHE") and PUELIA_SERVE_FROM_CACHE) {
if ($cachedResponse = LinkedDataApiCache::hasCachedUri($pathWithoutExtension)) {
//request without format is cached
// we get the data from the datastore
$checkDatastore = true;
} else {
//we go directly to the external service
$checkDatastore = false;
}
} else {
// try to get the data from the datastore
$checkDatastore = true;
}
} else {
$checkDatastore = false;
}
return $checkDatastore;
}
