1 // FGDeviceConfigurationMap.cxx -- a map to access xml device configuration
3 // Written by Torsten Dreyer, started August 2009
4 // Based on work from David Megginson, started May 2001.
6 // Copyright (C) 2009 Torsten Dreyer, Torsten (at) t3r _dot_ de
7 // Copyright (C) 2001 David Megginson, david@megginson.com
9 // This program is free software; you can redistribute it and/or
10 // modify it under the terms of the GNU General Public License as
11 // published by the Free Software Foundation; either version 2 of the
12 // License, or (at your option) any later version.
14 // This program is distributed in the hope that it will be useful, but
15 // WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 // General Public License for more details.
19 // You should have received a copy of the GNU General Public License
20 // along with this program; if not, write to the Free Software
21 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
29 #include "FGDeviceConfigurationMap.hxx"
31 #include <boost/foreach.hpp>
33 #include <simgear/misc/sg_dir.hxx>
34 #include <simgear/props/props_io.hxx>
35 #include <simgear/structure/exception.hxx>
37 #include <Main/globals.hxx>
38 #include <Navaids/NavDataCache.hxx>
40 using simgear::PropertyList;
43 FGDeviceConfigurationMap::FGDeviceConfigurationMap( const string& relative_path)
45 scan_dir( SGPath(globals->get_fg_home(), relative_path));
46 scan_dir( SGPath(globals->get_fg_root(), relative_path));
49 FGDeviceConfigurationMap::~FGDeviceConfigurationMap()
54 FGDeviceConfigurationMap::configurationForDeviceName(const std::string& name)
56 NamePathMap::iterator it = namePathMap.find(name);
57 if (it == namePathMap.end()) {
58 return SGPropertyNode_ptr();
61 SGPropertyNode_ptr result(new SGPropertyNode);
63 readProperties(it->second.str(), result);
64 result->setStringValue("source", it->second.c_str());
65 } catch (sg_exception& e) {
66 SG_LOG(SG_INPUT, SG_WARN, "parse failure reading:" << it->second);
72 bool FGDeviceConfigurationMap::hasConfiguration(const std::string& name) const
74 return namePathMap.find(name) != namePathMap.end();
77 void FGDeviceConfigurationMap::scan_dir(const SGPath & path)
82 simgear::Dir dir(path);
83 simgear::PathList children = dir.children(simgear::Dir::TYPE_FILE |
84 simgear::Dir::TYPE_DIR | simgear::Dir::NO_DOT_OR_DOTDOT);
85 flightgear::NavDataCache* cache = flightgear::NavDataCache::instance();
87 BOOST_FOREACH(SGPath path, children) {
90 } else if (path.extension() == "xml") {
91 if (cache->isCachedFileModified(path)) {
92 refreshCacheForFile(path);
95 } // of cached file stamp is valid
96 } // of child is a file with '.xml' extension
97 } // of directory children iteration
100 void FGDeviceConfigurationMap::readCachedData(const SGPath& path)
102 flightgear::NavDataCache* cache = flightgear::NavDataCache::instance();
103 NamePathMap::iterator it;
104 BOOST_FOREACH(string s, cache->readStringListProperty(path.str())) {
105 // important - only insert if not already present. This ensures
106 // user configs can override those in the base package, since they are
108 it = namePathMap.find(s);
109 if (it == namePathMap.end()) {
110 namePathMap.insert(std::make_pair(s, path));
112 } // of cached names iteration
115 void FGDeviceConfigurationMap::refreshCacheForFile(const SGPath& path)
117 SG_LOG(SG_INPUT, SG_DEBUG, "Reading joystick file " << path.str());
118 SGPropertyNode_ptr n(new SGPropertyNode);
120 readProperties(path.str(), n);
121 } catch (sg_exception& e) {
122 SG_LOG(SG_INPUT, SG_WARN, "parse failure reading:" << path);
126 NamePathMap::iterator it;
128 BOOST_FOREACH(SGPropertyNode* nameProp, n->getChildren("name")) {
129 names.push_back(nameProp->getStringValue());
130 // same comment as readCachedData: only insert if not already present
131 it = namePathMap.find(names.back());
132 if (it == namePathMap.end()) {
133 namePathMap.insert(std::make_pair(names.back(), path));
137 flightgear::NavDataCache* cache = flightgear::NavDataCache::instance();
138 cache->stampCacheFile(path);
139 cache->writeStringListProperty(path.str(), names);