HierarchyMaintainer.cpp
Go to the documentation of this file.
00001 /*
00002  * HierarchyMaintainer.cpp
00003  *
00004  * Copyright 2000, LifeLine Networks BV (www.lifeline.nl). All rights reserved.
00005  * Copyright 2000, Bastiaan Bakker. All rights reserved.
00006  *
00007  * See the COPYING file for the terms of usage and distribution.
00008  */
00009 
00010 #include "PortabilityImpl.hh"
00011 
00012 #ifdef LOG4CPP_HAVE_IO_H
00013 #    include <io.h>
00014 #endif
00015 #ifdef LOG4CPP_HAVE_UNISTD_H
00016 #    include <unistd.h>
00017 #endif
00018 
00019 #include <cstdio>
00020 #include <cassert>
00021 #include <log4cpp/HierarchyMaintainer.hh>
00022 #include <log4cpp/FileAppender.hh>
00023 
00024 namespace log4cpp {
00025 
00026 HierarchyMaintainer::creator_function_t HierarchyMaintainer::_creator_function = 0;
00027 
00028     HierarchyMaintainer& HierarchyMaintainer::getDefaultMaintainer() {
00029         static HierarchyMaintainer defaultMaintainer;
00030 
00031         return defaultMaintainer;
00032     }
00033 
00034     HierarchyMaintainer::HierarchyMaintainer() {
00035     }
00036 
00037     HierarchyMaintainer::~HierarchyMaintainer() {
00038         shutdown();
00039         deleteAllCategories();
00040     }
00041 
00042     Category* HierarchyMaintainer::getExistingInstance(const std::string& name) {
00043         threading::ScopedLock lock(_categoryMutex);
00044         return _getExistingInstance(name);
00045     }
00046 
00047     Category* HierarchyMaintainer::_getExistingInstance(const std::string& name) {
00048         Category* result = NULL;
00049 
00050         CategoryMap::iterator i = _categoryMap.find(name);
00051         if (_categoryMap.end() != i) {
00052             result = (*i).second;
00053         }
00054 
00055         return result;
00056     }
00057 
00058     Category& HierarchyMaintainer::getInstance(const std::string& name) {
00059         threading::ScopedLock lock(_categoryMutex);
00060         return _getInstance(name);
00061     }
00062 
00063     /* assume lock is held */
00064     Category& HierarchyMaintainer::_getInstance(const std::string& name) {
00065         Category* result;
00066         result = _getExistingInstance(name);
00067         
00068         if (NULL == result) {            
00069             if (name == "") {
00070                 result = make_category(name, NULL, Priority::INFO);
00071             } else {
00072                 std::string parentName;
00073                 size_t dotIndex = name.find_last_of('.');
00074                 if (name.length() <= dotIndex) {
00075                     parentName = "";
00076                 } else {
00077                     parentName = name.substr(0, dotIndex);
00078                 }
00079                 Category& parent = _getInstance(parentName);
00080                 result = make_category(name, &parent, Priority::NOTSET);
00081             }     
00082             _categoryMap[name] = result; 
00083         }
00084         return *result;
00085     }
00086 
00087     std::vector<Category*>* HierarchyMaintainer::getCurrentCategories() const {
00088         std::vector<Category*>* categories = new std::vector<Category*>;
00089 
00090         threading::ScopedLock lock(_categoryMutex);
00091         {
00092             for(CategoryMap::const_iterator i = _categoryMap.begin(); i != _categoryMap.end(); i++) {
00093                 categories->push_back((*i).second);
00094             }
00095         }
00096 
00097         return categories;
00098     }
00099 
00100     void HierarchyMaintainer::shutdown() {
00101         threading::ScopedLock lock(_categoryMutex);
00102         {
00103             for(CategoryMap::const_iterator i = _categoryMap.begin(); i != _categoryMap.end(); i++) {
00104                 ((*i).second)->removeAllAppenders();
00105             }
00106         }
00107         
00108         try
00109         {
00110            for(handlers_t::const_iterator i = handlers_.begin(), last = handlers_.end(); i != last; ++i)
00111               (**i)();
00112         }
00113         catch(...)
00114         {
00115         }
00116         
00117     }
00118 
00119     void HierarchyMaintainer::register_shutdown_handler(shutdown_fun_ptr handler)
00120     {
00121         handlers_.push_back(handler); 
00122     }
00123 
00124     void HierarchyMaintainer::deleteAllCategories() {
00125         threading::ScopedLock lock(_categoryMutex);
00126         {
00127             for(CategoryMap::const_iterator i = _categoryMap.begin(); i != _categoryMap.end(); i++) {
00128                 delete ((*i).second);
00129             }
00130                         _categoryMap.erase(_categoryMap.begin(), _categoryMap.end());
00131         }
00132     }
00133 
00134     void HierarchyMaintainer::set_category_factory(creator_function_t creator_function)
00135         {
00136                 assert(0 != creator_function);
00137                 _creator_function = creator_function;
00138         }
00139 
00140     Category* HierarchyMaintainer::make_category(const std::string& name,
00141                                                                                                  Category* parent,
00142                                                                                                  Priority::Value priority)
00143         {
00144                 if (_creator_function)
00145                 {
00146                         return (*_creator_function)(name, parent, priority);
00147                 }
00148                 else
00149                 {
00150                         return new Category(name, parent, priority);
00151                 }
00152         }
00153 }


log4cpp
Author(s): Stephen Roderick
autogenerated on Mon Oct 6 2014 03:13:14