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#1730 - Caching in RestfulService (merged from branches/2.2.0, r44881)

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git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@44915 467b73ca-7a2a-4603-9d3b-597d59a354a9
This commit is contained in:
Andrew O'Neil 2007-11-15 22:40:36 +00:00
parent b5098645fc
commit 85d6566e32
1 changed files with 45 additions and 23 deletions
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68
api/RestfulService.php
View File

@ -9,9 +9,12 @@ class RestfulService extends ViewableData {
protected $queryString; protected $queryString;
protected $rawXML; protected $rawXML;
protected $errorTag; protected $errorTag;
protected $checkErrors;
protected $cache_expire;
function __construct($base){ function __construct($base, $expiry=3600){
$this->baseURL = $base; $this->baseURL = $base;
$this->cache_expire = $expiry;
} }
/** /**
@ -32,27 +35,46 @@ class RestfulService extends ViewableData {
*/ */
function connect(){ function connect(){
$url = $this->constructURL(); $url = $this->constructURL(); // url for the request
$ch = curl_init(); // check for file exists in cache
$timeout = 5; // set the cache directory
curl_setopt($ch, CURLOPT_URL, $url); $cachedir = TEMP_FOLDER; // default silverstripe-cache
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout); $cache_file = md5($url); // encoded name of cache file
$this->rawXML = curl_exec($ch); $cache_path = $cachedir . "/$cache_file";
curl_close($ch);
if((@file_exists("$cache_path") && ((@filemtime($cache_path) + $this->cache_expire) > (time())))){
//Debug::show($url); $this->rawXML = file_get_contents($cache_path);
} else {
//Try using file_get_contents if cURL is not installed in your system. // not available in cache fetch from server
//$this->rawXML = file_get_contents($url); $ch = curl_init();
if($this->rawXML != "") $timeout = 5;
if($this->checkErrors == true) curl_setopt($ch, CURLOPT_URL, $url);
return $this->errorCatch($this->rawXML); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
else curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
return $this->rawXML; $this->rawXML = curl_exec($ch);
else curl_close($ch);
user_error("Invalid Response (maybe your calling to wrong URL or server unavailable)", E_USER_ERROR);
// save the response in cache
$fp = @fopen($cache_path,"w+");
@fwrite($fp,$this->rawXML);
@fclose($fp);
}
// Try using file_get_contents if cURL is not installed in your system.
// $this->rawXML = file_get_contents($url);
// results returned - from cache / live
if($this->rawXML != ""){
if($this->checkErrors == true) {
return $this->errorCatch($this->rawXML);
} else {
return $this->rawXML;
}
} else {
user_error("Invalid Response (maybe your calling to wrong URL or server unavailable)", E_USER_ERROR);
}
} }
/** /**
@ -202,4 +224,4 @@ class RestfulService extends ViewableData {
} }
?> ?>