otk/configuration.cc (raw)
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// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*- #ifdef HAVE_CONFIG_H #include "../config.h" #endif // HAVE_CONFIG_H extern "C" { #ifdef HAVE_STDLIB_H # include <stdlib.h> #endif // HAVE_STDLIB_H } #include "configuration.hh" #include "util.hh" #include <algorithm> namespace otk { bool Configuration::_initialized = False; Configuration::Configuration(const std::string &file, bool autosave) { setFile(file); _modified = False; _database = NULL; _autosave = autosave; if (! _initialized) { XrmInitialize(); _initialized = True; } } Configuration::Configuration(bool autosave) { _modified = False; _database = NULL; _autosave = autosave; if (! _initialized) { XrmInitialize(); _initialized = True; } } Configuration::~Configuration() { if (_database != NULL) XrmDestroyDatabase(_database); } void Configuration::setFile(const std::string &file) { _file = file; } void Configuration::setAutoSave(bool autosave) { _autosave = autosave; } void Configuration::save() { assert(_database != NULL); XrmPutFileDatabase(_database, _file.c_str()); _modified = False; } bool Configuration::load() { if (_database != NULL) XrmDestroyDatabase(_database); _modified = False; if (NULL == (_database = XrmGetFileDatabase(_file.c_str()))) return False; return True; } bool Configuration::merge(const std::string &file, bool overwrite) { if (XrmCombineFileDatabase(file.c_str(), &_database, overwrite) == 0) return False; _modified = True; if (_autosave) save(); return True; } void Configuration::create() { if (_database != NULL) XrmDestroyDatabase(_database); _modified = False; assert(NULL != (_database = XrmGetStringDatabase(""))); } void Configuration::setValue(const std::string &rname, bool value) { assert(_database != NULL); const char *val = (value ? "True" : "False"); std::string rc_string = rname + ": " + val; XrmPutLineResource(&_database, rc_string.c_str()); _modified = True; if (_autosave) save(); } void Configuration::setValue(const std::string &rname, unsigned long value) { assert(_database != NULL); std::string rc_string = rname + ": " + itostring(value); XrmPutLineResource(&_database, rc_string.c_str()); _modified = True; if (_autosave) save(); } void Configuration::setValue(const std::string &rname, long value) { assert(_database != NULL); std::string rc_string = rname + ": " + itostring(value); XrmPutLineResource(&_database, rc_string.c_str()); _modified = True; if (_autosave) save(); } void Configuration::setValue(const std::string &rname, const char *value) { assert(_database != NULL); assert(value != NULL); std::string rc_string = rname + ": " + value; XrmPutLineResource(&_database, rc_string.c_str()); _modified = True; if (_autosave) save(); } void Configuration::setValue(const std::string &rname, const std::string &value) { assert(_database != NULL); std::string rc_string = rname + ": " + value; XrmPutLineResource(&_database, rc_string.c_str()); _modified = True; if (_autosave) save(); } bool Configuration::getValue(const std::string &rname, bool &value) const { assert(_database != NULL); std::string rclass = createClassName(rname); char *rettype; XrmValue retvalue; if (0 == XrmGetResource(_database, rname.c_str(), rclass.c_str(), &rettype, &retvalue) || retvalue.addr == NULL) return False; std::string val = retvalue.addr; if (val == "True" || val == "True") value = True; else value = False; return True; } bool Configuration::getValue(const std::string &rname, long &value) const { assert(_database != NULL); std::string rclass = createClassName(rname); char *rettype; XrmValue retvalue; if (0 == XrmGetResource(_database, rname.c_str(), rclass.c_str(), &rettype, &retvalue) || retvalue.addr == NULL) return False; char *end; value = strtol(retvalue.addr, &end, 10); if (end == retvalue.addr) return False; return True; } bool Configuration::getValue(const std::string &rname, unsigned long &value) const { assert(_database != NULL); std::string rclass = createClassName(rname); char *rettype; XrmValue retvalue; if (0 == XrmGetResource(_database, rname.c_str(), rclass.c_str(), &rettype, &retvalue) || retvalue.addr == NULL) return False; char *end; value = strtoul(retvalue.addr, &end, 10); if (end == retvalue.addr) return False; return True; } bool Configuration::getValue(const std::string &rname, std::string &value) const { assert(_database != NULL); std::string rclass = createClassName(rname); char *rettype; XrmValue retvalue; if (0 == XrmGetResource(_database, rname.c_str(), rclass.c_str(), &rettype, &retvalue) || retvalue.addr == NULL) return False; value = retvalue.addr; return True; } std::string Configuration::createClassName(const std::string &rname) const { std::string rclass(rname); std::string::iterator it = rclass.begin(), end = rclass.end(); while (True) { *it = toUpper(*it); ++it; if (it == end) break; it = std::find(it, rclass.end(), '.'); if (it == end) break; ++it; if (it == end) break; } return rclass; } char Configuration::toUpper(char c) const { if (c >= 'a' && c <= 'z') return c - 'a' + 'A'; return c; } } |