8. PHP pattern design enterprise pattern (1)

8. PHP pattern design enterprise pattern (1) (* front-end controllers and application controllers are not split temporarily, all of which are integrated in the Command class implementation)

1 Registry mode // Registry mode is used to provide a system-level object for convenient access anywhere (the Singleton mode can be used) class Registry {private static $ instance; private $ request; private function _ construct () {} static function instance () {if (! Isset (self ::$ instance) {self ::$ instance = new self ();} return self ::$ instance;} function getRequest () {$ this-> request;} function setRequest (Request $ request) {$ this-> request = $ request ;}} class Request {} 2 registry namespace woo \ controller in three scopes; class Request {} class Complex {} // create a registry mode with a scope // Request level registry namespace woo \ base; use woo; abstract class Registry {abstract protected function get ($ key); abstract prot Ected function set ($ key, $ val);} class RequestRegistry extends Registry {private $ values = array (); private static $ instance; private function _ construct () {} // return the unique static function instance () {if (! Isset (self ::$ instance) {self ::$ instance = new self ();} return self ::$ instance;} protected function get ($ key) {if (isset ($ this-> values [$ key]) {return isset ($ this-> values [$ key]);} return null ;} protected function set ($ key, $ val) {$ this-> values [$ key] = $ val;} static function getRequest () {return self: instance () -> get ('request');} static function setRequest (woo \ controller \ request $ Request) {return s Elf: instance ()-> set ('request', $ request) ;}// session-level Registry class SessionRegistry extends Registry {private static $ instance; private function _ construct () {session_start ();} // returns the unique static function instance () {if (! Isset (self ::$ instance) {self ::$ instance = new self ();} return self ::$ instance;} protected function get ($ key) {if (isset ($ _ SESSION [_ CLASS _] [$ key]) {return isset ($ _ SESSION [_ CLASS _] [$ key]);} return null;} protected function set ($ key, $ val) {$ _ SESSION [_ CLASS _] [$ key] = $ val;} static function getComplex () {return self: instance () -> get ('compute');} static function setRequest (woo \ controller \ Comp Lex $ request) {return self: instance ()-> set ('compute', $ request );}} // application-level Registry class ApplicationRegistry extends Registry {private static $ instance; private $ freezedir = 'data'; private $ values = array (); private $ mtimes = array (); private function _ construct () {session_start ();} // return the unique static function instance () {if (! Isset (self ::$ instance) {self ::$ instance = new self ();} return self ::$ instance ;}// get, set stores a $ key to the file separately. protected function get ($ key) {$ path = $ this-> freezedir. DIRECTORY_SEPARATOR. $ key; if (file_exists ($ path) {clearstatcache (); // get the file modification time $ mtime = filemtime ($ path); if (! Isset ($ this-> mtimes [$ key]) {$ this-> mtimes [$ key] = 0 ;} // if the object is modified if ($ mtime> $ this-> mtimes [$ key]) {$ data = file_get_contents ($ path ); $ this-> mtimes [$ key] = $ mtime; return ($ this-> values [$ key] = unserialize ($ data ));}} if (isset ($ this-> values [$ key]) {return $ this-> values [$ key];} return null;} protected function set ($ key, $ val) {$ this-> values [$ key] = $ val; $ path = $ this-> freezedir. DIRECTORY_SEPARATOR. $ key; // if the file does not exist, the system will automatically create file_put_contents ($ path, serialize ($ val); $ this-> mtimes [$ key] = time ();} static function getDSN () {return self: $ instance ()-> get ('dsn ');} static function setDSN ($ DSN) {return self: $ instance () -> set ('dsn ', $ DSN);} 3 front-end Controller-create a unified portal framework based on the registry mode and command mode
 DoExecute ($ request);} function disPlay ($ request) {// Obtain cmd, used to decide which page to retrieve $ cmd = $ request-> getProperty ('cmd '); // The statement is not very good .... print $ cmd; $ viewUrl = ". /Woo/View /". substr ($ cmd, 0, strlen ($ cmd)-(7 )). "View.html"; include_once ($ viewUrl);} abstract function doExecute (\ Woo \ Controller \ Request $ request );}
 GetProperty ('cmd'); $ sep = DIRECTORY_SEPARATOR; // if (! $ Cmd) {return clone self: $ default_cmd;} $ cmd = str_replace (array ('. ', $ sep), "", $ cmd); $ filePath = ". \ Woo {$ sep} Command {$ sep} {$ cmd }. php "; $ className =" \ Woo \ Command \ {$ cmd} "; if (file_exists ($ filePath) {require_once (" $ filePath "); // Determine whether the input class exists and whether it is a sub-class of base_cmd. if (class_exists ($ className) {$ cmd_class = new \ ReflectionClass ($ className ); if ($ cmd_class-> isSubclassOf (self: $ base_cmd) {return $ cmd_class-> newInstance ();} else {// resolution failed, jump to the default page $ request-> addFeedback ("command '$ cmd' is not a command"); return clone self ::$ default_cmd ;}}} else {$ request-> addFeedback ("command '$ cmd' is not found"); return clone self ::$ default_cmd ;}}}
 AddFeedback ("Welcome to WOO! "); $ Feedbacks = $ request-> getFeedback (); foreach ($ feedbacks as $ key => $ val) {print $ val; print"
";}Include_once (" Woo/View/main.html ");}}
 AddFeedback ("Welcome to WOO! "); $ Feedbacks = $ request-> getFeedback (); foreach ($ feedbacks as $ key => $ val) {print $ val; print"
";}$ This-> disPlay ($ request );}}
 Freezedir. DIRECTORY_SEPARATOR. $ key; if (file_exists ($ path) {clearstatcache (); // get the file modification time $ mtime = filemtime ($ path); if (! Isset ($ this-> mtimes [$ key]) {$ this-> mtimes [$ key] = 0 ;} // if the object is modified if ($ mtime> $ this-> mtimes [$ key]) {$ data = file_get_contents ($ path ); $ this-> mtimes [$ key] = $ mtime; return ($ this-> values [$ key] = unserialize ($ data ));}} if (isset ($ this-> values [$ key]) {return $ this-> values [$ key];} return null;} protected function set ($ key, $ val) {$ this-> values [$ key] = $ val; $ path = $ this-> freezedir. DIRECTORY_SEPARATOR. $ key; if (! Is_dir ($ this-> freezedir) {mkdir ($ this-> freezedir);} // if the file does not exist, file_put_contents ($ path, serialize ($ val) is automatically created )); $ this-> mtimes [$ key] = time ();} static function getDSN () {return self: instance ()-> get ('dsn ');} static function setDSN ($ dsn) {return self: instance ()-> set ('dsn ', $ DSN );}}
 Values [$ key]) {return isset ($ this-> values [$ key]);} return null;} protected function set ($ key, $ val) {$ this-> values [$ key] = $ val;} static function getRequest () {return self: instance ()-> get ('request ');} static function setRequest (\ Woo \ Controller \ Request $ request) {return self: instance ()-> set ('request', $ request );}}
 Get ('compute');} static function setRequest (Woo \ Controller \ complex $ request) {return self: instance ()-> set ('compute ', $ request );}}
 GetOptions () ;}// this method is called only when the cached data does not exist. getOptions () {$ this-> ensure (file_exists ($ this-> config ), "cocould not find options file! "); $ Options = simplexml_load_file ($ this-> config); print get_class ($ options); $ dsn = $ options-> dsn; $ this-> ensure ($ dsn, "No DSN found! "); // After obtaining the value, store it in the application-level registry to facilitate cache usage. // first convert it into an array to facilitate serialization of \ Woo \ Base \ ApplicationRegistry :: setDSN (array ($ dsn->__ toString (); // Set other values //...} private function ensure ($ expr, $ message) {if (! $ Expr) {throw new \ Exception ($ message );}}}
 Init (); // theoretically, handleRequest must run $ instance-> handleRequest ();} function init () {// Obtain a singleton upon each request, used for global configuration $ applicationHelper = ApplicationHelper: instance (); $ applicationHelper-> init () ;}// you need to call function handleRequest () once each request () {$ request = new Request (); $ pai_r = new \ Woo \ Command \ CommandResolver (); // Generate the corresponding command abstract class (interface) based on the request) and then use command to execute the relevant action $ cmd = $ cmd_r-> getCommand ($ request); $ cmd-> execute ($ request );}}
 Init (); \ Woo \ Base \ RequestRegistry: setRequest ($ this);} // supports both HTTP request and command line parameters (for debugging programs) // * fill the parameter in the properties property. function init () {// form submission METHOD if (isset ($ _ SERVER ['request _ method']) {// used to collect the data submitted by the form $ this-> properties =$ _ REQUEST; return ;} // $ _ SERVER ['argv'] the parameter foreach passed to the script ($ _ SERVER ['argv'] as $ arg) {// position where the string appears for the first time if (strpos ($ arg, '=') {list ($ key, $ val) = explode ("= ", $ arg); $ this-> setProperty ($ key, $ val) ;}} function getProperty ($ key) {if (isset ($ this-> properties [$ key]) {return $ this-> properties [$ key];} return null;} function setProperty ($ key, $ val) {$ this-> properties [$ key] = $ val;} function addFeedback ($ msg) {array_push ($ this-> feedback, $ msg );} function getFeedback () {return $ this-> feedback;} function getFeedbackString ($ separator = "\ n") {return implode ($ separator, $ this-> feedback );}} // woo_options.xml
 
  
   
Dsn
  
  
   
DSN
  // Framework entry index. php