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Annotation of parser3/src/include/pa_stylesheet_manager.h, revision 1.15.2.5.2.2

1.1       parser      1: /** @file
                      2:        Parser: Stylesheet manager decl.
                      3: 
1.15.2.1  paf         4:        Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)
1.12      paf         5:        Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.1       parser      6: 
                      7:        global sql driver manager, must be thread-safe
                      8: */
                      9: 
                     10: #ifndef PA_STYLESHEET_MANAGER_H
                     11: #define PA_STYLESHEET_MANAGER_H
1.13      paf        12: 
1.15.2.5.2.2! paf        13: static const char* IDENT_STYLESHEET_MANAGER_H="$Date: 2003/03/18 15:14:17 $";
1.15.2.5.2.1  paf        14: 
1.1       parser     15: 
                     16: #include "pa_hash.h"
                     17: #include "pa_table.h"
1.6       paf        18: #include "pa_cache_managers.h"
1.15.2.4  paf        19: #include "pa_stack.h"
1.1       parser     20: 
                     21: // forwards
                     22: 
                     23: class Stylesheet_connection;
1.15.2.3  paf        24: DECLARE_OBJECT_PTR(Stylesheet_connection);
1.1       parser     25: 
                     26: /** XSLT stylesheet driver manager
                     27:                maintains 
                     28:                stylesheet cache expiring unused stylesheets
                     29: */
1.15.2.2  paf        30: class Stylesheet_manager: public Cache_manager {
1.2       paf        31:        friend class Stylesheet_connection;
1.1       parser     32: public:
                     33: 
1.15.2.3  paf        34:        Stylesheet_manager();
                     35:        override ~Stylesheet_manager();
1.1       parser     36:        /** 
                     37:                check for disk update of "{file_spec}" or "{file_spec}.stamp",
                     38:                if not updated return cached version[if any] otherwise load/compile/return
                     39:        */
1.15.2.5.2.1  paf        40:        Stylesheet_connectionPtr get_connection(const String& file_spec);
1.1       parser     41: 
                     42: private: // cache
                     43: 
1.15.2.5.2.1  paf        44:        Stylesheet_connectionPtr get_connection_from_cache(const String& file_spec);
                     45:        void put_connection_to_cache(const String& file_spec, Stylesheet_connectionPtr connection);
1.1       parser     46: private:
                     47:        time_t prev_expiration_pass_time;
                     48: 
                     49: private: // for stylesheet
                     50: 
                     51:        /// caches connection
1.15.2.5.2.1  paf        52:        void close_connection(const String& file_spec, Stylesheet_connection& connection);
1.1       parser     53: 
1.15.2.5  paf        54: public:
1.15.2.5.2.1  paf        55:        typedef Hash<String* , object_ptr<Stack<Stylesheet_connectionPtr> > > connection_cache_type;
1.15.2.5  paf        56: private:
1.15.2.4  paf        57:        connection_cache_type connection_cache;
1.3       paf        58: 
1.6       paf        59: public: // Cache_manager
1.3       paf        60: 
1.15.2.5.2.2! paf        61:        override Value* get_status(const String* source);
1.15.2.3  paf        62:        override void maybe_expire_cache();
1.3       paf        63: 
1.1       parser     64: };
                     65: 
                     66: /// global
1.15.2.3  paf        67: extern Stylesheet_manager stylesheet_manager;
1.1       parser     68: 
                     69: #endif