Reformat cache handler code

git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0@9814 201d5d3c-b55e-5fd7-737f-ddc643e51545
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taggon 2011-11-15 09:25:34 +00:00
parent 9b4f219a0c
commit 518a8a2f59

View file

@ -1,130 +1,130 @@
<?php
/**
* @class CacheHandler
* @author NHN (developer@xpressengine.com)
* @brief Cache Handler
* @version 0.1
*
**/
/**
* @class CacheHandler
* @author NHN (developer@xpressengine.com)
* @brief Cache Handler
* @version 0.1
*
**/
class CacheHandler extends Handler {
class CacheHandler extends Handler {
var $handler = null;
var $keyGroupVersions = null;
var $handler = null;
var $keyGroupVersions = null;
function &getInstance($target='object') {
if(!$GLOBALS['__XE_CACHE_HANDLER__'][$target]) {
$GLOBALS['__XE_CACHE_HANDLER__'][$target] = new CacheHandler($target);
}
return $GLOBALS['__XE_CACHE_HANDLER__'][$target];
function &getInstance($target='object') {
if(!$GLOBALS['__XE_CACHE_HANDLER__'][$target]) {
$GLOBALS['__XE_CACHE_HANDLER__'][$target] = new CacheHandler($target);
}
return $GLOBALS['__XE_CACHE_HANDLER__'][$target];
}
function CacheHandler($target, $info=null) {
if(!$info) $info = Context::getDBInfo();
if($info){
if($target == 'object'){
if($info->use_object_cache =='apc') $type = 'apc';
else if(substr($info->use_object_cache,0,8)=='memcache'){
$type = 'memcache';
$url = $info->use_object_cache;
}
}else if($target == 'template'){
if($info->use_template_cache =='apc') $type = 'apc';
else if(substr($info->use_template_cache,0,8)=='memcache'){
$type = 'memcache';
$url = $info->use_template_cache;
}
function CacheHandler($target, $info=null) {
if(!$info) $info = Context::getDBInfo();
if($info){
if($target == 'object'){
if($info->use_object_cache =='apc') $type = 'apc';
else if(substr($info->use_object_cache,0,8)=='memcache'){
$type = 'memcache';
$url = $info->use_object_cache;
}
}else if($target == 'template'){
if($info->use_template_cache =='apc') $type = 'apc';
else if(substr($info->use_template_cache,0,8)=='memcache'){
$type = 'memcache';
$url = $info->use_template_cache;
}
}
if($type){
$class = 'Cache' . ucfirst($type);
include_once sprintf('%sclasses/cache/%s.class.php', _XE_PATH_, $class);
$this->handler = call_user_func(array($class,'getInstance'), $url);
$this->keyGroupVersions = $this->handler->get('key_group_versions', 0);
if(!$this->keyGroupVersions) {
$this->keyGroupVersions = array();
$this->handler->put('key_group_versions', $this->keyGroupVersions, 0);
}
if($type){
$class = 'Cache' . ucfirst($type);
include_once sprintf('%sclasses/cache/%s.class.php', _XE_PATH_, $class);
$this->handler = call_user_func(array($class,'getInstance'), $url);
$this->keyGroupVersions = $this->handler->get('key_group_versions', 0);
if(!$this->keyGroupVersions) {
$this->keyGroupVersions = array();
$this->handler->put('key_group_versions', $this->keyGroupVersions, 0);
}
}
}
function isSupport(){
if($this->handler && $this->handler->isSupport()) return true;
return false;
}
function get($key, $modified_time = 0){
if(!$this->handler) return false;
return $this->handler->get($key, $modified_time);
}
function put($key, $obj, $valid_time = 0){
if(!$this->handler) return false;
return $this->handler->put($key, $obj, $valid_time);
}
function delete($key){
if(!$this->handler) return false;
return $this->handler->delete($key);
}
function isValid($key, $modified_time){
if(!$this->handler) return false;
return $this->handler->isValid($key, $modified_time);
}
function truncate(){
if(!$this->handler) return false;
return $this->handler->truncate();
}
/**
* Function used for generating keys for similar objects.
*
* Ex: 1:document:123
* 1:document:777
*
* This allows easily removing all object of type "document"
* from cache by simply invalidating the group key.
*
* The new key will be 2:document:123, thus forcing the document
* to be reloaded from the database.
*/
function getGroupKey($keyGroupName, $key){
if(!$this->keyGroupVersions[$keyGroupName]){
$this->keyGroupVersions[$keyGroupName] = 1;
$this->handler->put('key_group_versions', $this->keyGroupVersions, 0);
}
return $this->keyGroupVersions[$keyGroupName] . ':' . $keyGroupName . ':' . $key;
}
function invalidateGroupKey($keyGroupName){
$this->keyGroupVersions[$keyGroupName]++;
$this->handler->put('key_group_versions', $this->keyGroupVersions, 0);
}
}
class CacheBase{
function get($key, $modified_time = 0){
return false;
}
function put($key, $obj, $valid_time = 0){
return false;
}
function isValid($key, $modified_time = 0){
return false;
}
function isSupport(){
return false;
}
function truncate(){
return false;
}
}
?>
function isSupport(){
if($this->handler && $this->handler->isSupport()) return true;
return false;
}
function get($key, $modified_time = 0){
if(!$this->handler) return false;
return $this->handler->get($key, $modified_time);
}
function put($key, $obj, $valid_time = 0){
if(!$this->handler) return false;
return $this->handler->put($key, $obj, $valid_time);
}
function delete($key){
if(!$this->handler) return false;
return $this->handler->delete($key);
}
function isValid($key, $modified_time){
if(!$this->handler) return false;
return $this->handler->isValid($key, $modified_time);
}
function truncate(){
if(!$this->handler) return false;
return $this->handler->truncate();
}
/**
* Function used for generating keys for similar objects.
*
* Ex: 1:document:123
* 1:document:777
*
* This allows easily removing all object of type "document"
* from cache by simply invalidating the group key.
*
* The new key will be 2:document:123, thus forcing the document
* to be reloaded from the database.
*/
function getGroupKey($keyGroupName, $key){
if(!$this->keyGroupVersions[$keyGroupName]){
$this->keyGroupVersions[$keyGroupName] = 1;
$this->handler->put('key_group_versions', $this->keyGroupVersions, 0);
}
return $this->keyGroupVersions[$keyGroupName] . ':' . $keyGroupName . ':' . $key;
}
function invalidateGroupKey($keyGroupName){
$this->keyGroupVersions[$keyGroupName]++;
$this->handler->put('key_group_versions', $this->keyGroupVersions, 0);
}
}
class CacheBase{
function get($key, $modified_time = 0){
return false;
}
function put($key, $obj, $valid_time = 0){
return false;
}
function isValid($key, $modified_time = 0){
return false;
}
function isSupport(){
return false;
}
function truncate(){
return false;
}
}
/* End of file : CacheHandler.class.php */