configuration implementation and test
This commit is contained in:
Gasper Jansa
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/*
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* configuration.cpp
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*/
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#include "configuration.h"
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namespace epics { namespace pvAccess {
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Properties::Properties()
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{
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_fileName = "";
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_infile = new ifstream();
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_infile->exceptions (ifstream::failbit | ifstream::badbit );
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_outfile = new ofstream();
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_outfile->exceptions (ofstream::failbit | ofstream::badbit );
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}
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Properties::Properties(const string fileName)
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{
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_fileName = fileName;
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_infile = new ifstream();
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_infile->exceptions (ifstream::failbit | ifstream::badbit );
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_outfile = new ofstream();
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_outfile->exceptions (ofstream::failbit | ofstream::badbit );
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}
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Properties::~Properties()
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{
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delete _infile;
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delete _outfile;
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//clear map
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for(_propertiesIterator = _properties.begin() ;
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_propertiesIterator != _properties.end();
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_propertiesIterator++ )
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{
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delete [] _propertiesIterator->first;
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delete [] _propertiesIterator->second;
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}
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_properties.clear();
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}
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void Properties::setProperty(const string key,const string value)
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{
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string oldValue;
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_propertiesIterator = _properties.find(key.c_str());
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if(_propertiesIterator != _properties.end()) //found in map
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{
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delete[] _propertiesIterator->first;
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delete[] _propertiesIterator->second;
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_properties.erase(_propertiesIterator);
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}
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char* chKey = new char[key.length() + 1];
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strncpy(chKey,key.c_str(),key.length()+ 1);
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char* chValue = new char[value.length() + 1];
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strncpy(chValue,value.c_str(),value.length() + 1);
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_properties[chKey] = chValue;
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}
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string Properties::getProperty(const string key)
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{
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_propertiesIterator = _properties.find(key.c_str());
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if(_propertiesIterator != _properties.end()) //found in map
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{
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return string(_propertiesIterator->second);
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}
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else
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{
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string errMsg = "Property not found in the map: " + key;
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throw BaseException(errMsg.c_str(), __FILE__, __LINE__);
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}
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}
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string Properties::getProperty(const string key, const string defaultValue)
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{
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_propertiesIterator = _properties.find(key.c_str());
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if(_propertiesIterator != _properties.end()) //found in map
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{
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return string(_propertiesIterator->second);
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}
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char* chKey = new char[key.length() + 1];
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strncpy(chKey,key.c_str(),key.length()+ 1);
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char* chValue = new char[defaultValue.length() + 1];
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strncpy(chValue,defaultValue.c_str(),defaultValue.length() + 1);
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_properties[chKey] = chValue;
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return defaultValue;
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}
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void Properties::load()
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{
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for (_propertiesIterator = _properties.begin() ;
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_propertiesIterator != _properties.end();
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_propertiesIterator++ )
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{
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delete [] _propertiesIterator->first;
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delete [] _propertiesIterator->second;
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}
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_properties.clear();
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try
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{
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_infile->open(_fileName.c_str(),ifstream::in);
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}
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catch (ifstream::failure& e) {
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string errMsg = "Error opening file: " + string(_fileName.c_str());
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throw BaseException(errMsg.c_str(), __FILE__, __LINE__);
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}
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string line;
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string property;
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string key;
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try
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{
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while(!_infile->eof())
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{
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line.clear();
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std::getline(*_infile,line);
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//remove trailing spaces
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truncate(line);
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//empty line
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if(line.length() == 0)
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{
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continue;
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}
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// comment
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if(line.at(0) == '#')
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{
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continue;
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}
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//line is in format: propertyName=propertyValue
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size_t pos = line.find_first_of('=',0);
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if(pos == string::npos) //bad value (= not found)
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{
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string errMsg = "Bad property line found: " + line;
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throw BaseException(errMsg.c_str(), __FILE__, __LINE__);
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}
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key = line.substr(0,pos);
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truncate(key);
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property = line.substr(pos + 1,line.length());
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truncate(property);
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char* chKey = new char[key.length() + 1];
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strncpy(chKey,key.c_str(),key.length()+ 1);
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char* chProperty = new char[property.length() +1];
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strncpy(chProperty,property.c_str(),property.length() + 1);
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_properties[chKey] = chProperty;
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}
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}
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catch (ifstream::failure& e)
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{
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_infile->close();
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if(_infile->eof())
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{
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return; //end of file
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}
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string errMsg = "Error reading file: " + _fileName;
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throw BaseException(errMsg.c_str(), __FILE__, __LINE__);
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}
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_infile->close();
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}
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void Properties::load(const string fileName)
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{
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_fileName = fileName;
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load();
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}
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void Properties::store()
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{
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try
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{
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_outfile->open(_fileName.c_str(),ifstream::trunc);
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}
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catch (ofstream::failure& e) {
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string errMsg = "Error opening file: " + string(_fileName.c_str());
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throw BaseException(errMsg.c_str(), __FILE__, __LINE__);
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}
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for (_propertiesIterator = _properties.begin() ;
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_propertiesIterator != _properties.end();
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_propertiesIterator++ )
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{
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try
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{
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string line = string(_propertiesIterator->first) + string("=") + string(_propertiesIterator->second) + string("\n");
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_outfile->write(line.c_str(),line.length());
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}
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catch (ofstream::failure& e) {
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_outfile->close();
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string errMsg = "Error writing to file: " + string(_fileName.c_str());
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throw BaseException(errMsg.c_str(), __FILE__, __LINE__);
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}
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}
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_outfile->close();
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}
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void Properties::store(const string fileName)
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{
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_fileName = fileName;
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store();
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}
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void Properties::list()
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{
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for (_propertiesIterator = _properties.begin() ;
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_propertiesIterator != _properties.end();
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_propertiesIterator++ )
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{
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cout << "Key:" << _propertiesIterator->first << ",Value: " << _propertiesIterator->second << endl;
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}
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}
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SystemConfigurationImpl::SystemConfigurationImpl()
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{
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_envParam.name = new char[MAX_NAME_LENGHT];
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_envParam.pdflt = NULL;
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_ibuffer.exceptions ( ifstream::failbit | ifstream::badbit );
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_obuffer.exceptions ( ifstream::failbit | ifstream::badbit );
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_properties = new Properties();
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}
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SystemConfigurationImpl::~SystemConfigurationImpl()
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{
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if(_envParam.name) delete[] _envParam.name;
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if(_properties) delete _properties;
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}
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bool SystemConfigurationImpl::getPropertyAsBoolean(const string name, const bool defaultValue)
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{
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bool retval;
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_ibuffer.clear();
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_obuffer.clear();
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_obuffer.str("");
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_obuffer << defaultValue;
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_ibuffer.str(getPropertyAsString(name,_obuffer.str()));
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_ibuffer >> retval;
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return retval;
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}
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int32 SystemConfigurationImpl::getPropertyAsInteger(const string name, const int32 defaultValue)
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{
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int32 retval;
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_ibuffer.clear();
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_obuffer.clear();
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_obuffer.str("");
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_obuffer << defaultValue;
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_ibuffer.str(getPropertyAsString(name, _obuffer.str()));
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_ibuffer >> retval;
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return retval;
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}
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float SystemConfigurationImpl::getPropertyAsFloat(const string name, const float defaultValue)
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{
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float retval;
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_ibuffer.clear();
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_obuffer.clear();
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_obuffer.str("");
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_obuffer << defaultValue;
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_ibuffer.str(getPropertyAsString(name, _obuffer.str()));
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_ibuffer >> retval;
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return retval;
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}
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float SystemConfigurationImpl::getPropertyAsDouble(const string name, const double defaultValue)
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{
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float retval;
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_ibuffer.clear();
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_obuffer.clear();
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_obuffer.str("");
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_obuffer << defaultValue;
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_ibuffer.str(getPropertyAsString(name, _obuffer.str()));
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_ibuffer >> retval;
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return retval;
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}
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string SystemConfigurationImpl::getPropertyAsString(const string name, const string defaultValue)
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{
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strncpy(_envParam.name,name.c_str(),name.length() + 1);
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const char* val = envGetConfigParamPtr(&_envParam);
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if(val != NULL)
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{
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return _properties->getProperty(name, string(val));
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}
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return _properties->getProperty(name,defaultValue);
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}
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ConfigurationProviderImpl::ConfigurationProviderImpl()
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{
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}
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ConfigurationProviderImpl::~ConfigurationProviderImpl()
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{
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for(_configsIter = _configs.begin() ;
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_configsIter != _configs.end();
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_configsIter++ )
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{
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delete [] _configsIter->first;
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}
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_configs.clear();
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}
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void ConfigurationProviderImpl::registerConfiguration(const string name, const Configuration* configuration)
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{
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Lock guard(&_mutex);
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_configsIter = _configs.find(name.c_str());
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if(_configsIter != _configs.end())
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{
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string msg = "configuration with name " + name + " already registered";
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throw BaseException(msg.c_str(), __FILE__, __LINE__);
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}
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char* chKey = new char[name.length() + 1];
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strncpy(chKey,name.c_str(),name.length()+ 1);
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_configs[chKey] = configuration;
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}
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Configuration* ConfigurationProviderImpl::getConfiguration(const string name)
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{
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_configsIter = _configs.find(name.c_str());
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if(_configsIter != _configs.end())
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{
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return const_cast<Configuration*>(_configsIter->second);
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}
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return NULL;
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}
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ConfigurationProviderImpl* ConfigurationFactory::_configurationProvider = NULL;
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Mutex ConfigurationFactory::_conf_factory_mutex = Mutex();
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ConfigurationProviderImpl* ConfigurationFactory::getProvider()
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{
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Lock guard(&_conf_factory_mutex);
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if(_configurationProvider == NULL)
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{
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_configurationProvider = new ConfigurationProviderImpl();
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}
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return _configurationProvider;
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}
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}}
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