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/* Copyright (C) 2013 BMW Group
* Author: Manfred Bathelt (manfred.bathelt@bmw.de)
* Author: Juergen Gehring (juergen.gehring@bmw.de)
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <fstream>
#include <CommonAPI/utils.h>
#include "DBusConfiguration.h"
namespace CommonAPI {
namespace DBus {
enum class TypeEnum {
DBUS_CONNECTION, DBUS_OBJECT, DBUS_INTERFACE, DBUS_PREDEFINED
};
enum class TypeEnumFactory {
DBUS_BUSTYPE
};
enum class FileParsingState {
UNDEFINED,
PARSING_ADDRESS,
PARSING_FACTORY
};
static const std::unordered_map<std::string, TypeEnum> allowedValueTypes = {
{"dbus_connection", TypeEnum::DBUS_CONNECTION},
{"dbus_object", TypeEnum::DBUS_OBJECT},
{"dbus_interface", TypeEnum::DBUS_INTERFACE},
{"dbus_predefined", TypeEnum::DBUS_PREDEFINED}
};
static const std::unordered_map<std::string, TypeEnumFactory> allowedValueTypesFactory = {
{"dbus_bustype", TypeEnumFactory::DBUS_BUSTYPE}
};
const DBusConfiguration& DBusConfiguration::getInstance() {
static DBusConfiguration* instance = NULL;
if (!instance) {
instance = new DBusConfiguration();
instance->retrieveCommonApiDBusConfiguration();
}
return *instance;
}
void DBusConfiguration::retrieveCommonApiDBusConfiguration() {
std::string fqnOfConfigFile = getCurrentBinaryFileFQN();
std::ifstream addressConfigFile;
fqnOfConfigFile += DBUS_CONFIG_SUFFIX;
addressConfigFile.open(fqnOfConfigFile.c_str());
if (addressConfigFile.is_open()) {
readConfigFile(addressConfigFile);
addressConfigFile.close();
}
addressConfigFile.clear();
std::vector<std::string> splittedConfigFQN = split(fqnOfConfigFile, '/');
std::string globalConfigFQN = DBUS_GLOBAL_CONFIG_ROOT + splittedConfigFQN.at(splittedConfigFQN.size() - 1);
addressConfigFile.open(globalConfigFQN);
if (addressConfigFile.is_open()) {
readConfigFile(addressConfigFile);
addressConfigFile.close();
}
addressConfigFile.clear();
addressConfigFile.open(DBUS_GLOBAL_CONFIG_FQN);
if(addressConfigFile.is_open()) {
readConfigFile(addressConfigFile);
addressConfigFile.close();
}
}
const std::unordered_map<std::string, CommonApiServiceDetails>& DBusConfiguration::getCommonApiAddressDetails() const {
return std::move(commonApiAddressDetails_);
}
const DBusFactoryConfig* DBusConfiguration::getFactoryConfiguration(const std::string& factoryName) const {
const auto foundConfig = factoryConfigurations_.find(factoryName);
if (foundConfig != factoryConfigurations_.end()) {
return &foundConfig->second;
}
return NULL;
}
void reset(DBusServiceAddress& dbusServiceAddress) {
std::get<0>(dbusServiceAddress) = "";
std::get<1>(dbusServiceAddress) = "";
std::get<2>(dbusServiceAddress) = "";
}
void reset(CommonApiServiceDetails& serviceDetails) {
reset(std::get<0>(serviceDetails));
std::get<1>(serviceDetails) = false;
}
void reset(DBusFactoryConfig& dbusFactoryconfiguration) {
dbusFactoryconfiguration.factoryName_ = "";
dbusFactoryconfiguration.busType_ = BusType::SESSION;
}
void DBusConfiguration::readValue(std::string& readLine, DBusFactoryConfig& factoryConfig) {
std::stringstream readStream(readLine);
std::string paramName;
std::string paramValue;
getline(readStream, paramName, '=');
auto typeEntry = allowedValueTypesFactory.find(paramName);
if (typeEntry != allowedValueTypesFactory.end()) {
getline(readStream, paramValue);
switch (typeEntry->second) {
case TypeEnumFactory::DBUS_BUSTYPE:
if (paramValue == "system") {
factoryConfig.busType_ = DBus::BusType::SYSTEM;
}
break;
}
}
}
void DBusConfiguration::readValue(std::string& readLine, CommonApiServiceDetails& serviceDetails) {
std::stringstream readStream(readLine);
std::string paramName;
std::string paramValue;
getline(readStream, paramName, '=');
auto typeEntry = allowedValueTypes.find(paramName);
if (typeEntry != allowedValueTypes.end()) {
getline(readStream, paramValue);
switch (typeEntry->second) {
case TypeEnum::DBUS_CONNECTION:
std::get<0>(std::get<0>(serviceDetails)) = paramValue;
break;
case TypeEnum::DBUS_OBJECT:
std::get<1>(std::get<0>(serviceDetails)) = paramValue;
break;
case TypeEnum::DBUS_INTERFACE:
std::get<2>(std::get<0>(serviceDetails)) = paramValue;
break;
case TypeEnum::DBUS_PREDEFINED:
std::get<1>(serviceDetails) = paramValue == "true" ? true : false;
break;
}
}
}
const FileParsingState isValidSection(const std::string& sectionIdentifier, std::string& newSectionName) {
const size_t sectionIdentifierLength = sectionIdentifier.length();
if (sectionIdentifier[0] == '[' && sectionIdentifier[sectionIdentifier.length() - 1] == ']') {
std::string sectionName = sectionIdentifier.substr(1, sectionIdentifierLength - 2);
std::vector<std::string> addressParts = split(sectionName, '$');
if (addressParts.size() == 2 && addressParts[0] == "factory") {
newSectionName = addressParts[1];
return FileParsingState::PARSING_FACTORY;
} else if (isValidCommonApiAddress(sectionName)) {
newSectionName = sectionName;
return FileParsingState::PARSING_ADDRESS;
}
}
return FileParsingState::UNDEFINED;
}
void DBusConfiguration::readConfigFile(std::ifstream& addressConfigFile) {
std::string currentlyParsedCommonApiAddress;
DBusFactoryConfig currentlyParsedFactoryConfig;
CommonApiServiceDetails serviceDetails;
reset(serviceDetails);
bool newAddressFound = false;
bool newFactoryFound = false;
FileParsingState currentParsingState = FileParsingState::UNDEFINED;
while (addressConfigFile.good()) {
std::string readLine;
std::string sectionName;
getline(addressConfigFile, readLine);
FileParsingState newState = isValidSection(readLine, sectionName);
//Finish currently read sections if necessary
if (newState != FileParsingState::UNDEFINED) {
switch (currentParsingState) {
case FileParsingState::PARSING_ADDRESS:
if (newAddressFound) {
commonApiAddressDetails_.insert( {currentlyParsedCommonApiAddress, serviceDetails});
}
newAddressFound = false;
break;
case FileParsingState::PARSING_FACTORY:
if (newFactoryFound) {
factoryConfigurations_.insert( {currentlyParsedFactoryConfig.factoryName_, currentlyParsedFactoryConfig} );
}
newFactoryFound = false;
break;
case FileParsingState::UNDEFINED:
break;
}
}
//See what comes next
switch (newState) {
case FileParsingState::PARSING_ADDRESS:
reset(serviceDetails);
currentlyParsedCommonApiAddress = sectionName;
newAddressFound = commonApiAddressDetails_.find(currentlyParsedCommonApiAddress) == commonApiAddressDetails_.end();
currentParsingState = FileParsingState::PARSING_ADDRESS;
break;
case FileParsingState::PARSING_FACTORY:
reset(currentlyParsedFactoryConfig);
currentlyParsedFactoryConfig.factoryName_ = sectionName;
newFactoryFound = factoryConfigurations_.find(sectionName) == factoryConfigurations_.end();
currentParsingState = FileParsingState::PARSING_FACTORY;
break;
//nothing new, so this lines should contain additional information for the current state
case FileParsingState::UNDEFINED:
switch (currentParsingState) {
case FileParsingState::PARSING_FACTORY:
readValue(readLine, currentlyParsedFactoryConfig);
break;
case FileParsingState::PARSING_ADDRESS:
readValue(readLine, serviceDetails);
break;
case FileParsingState::UNDEFINED:
break;
}
break;
}
}
//End of file, finish last section
if (newAddressFound) {
commonApiAddressDetails_.insert( {currentlyParsedCommonApiAddress, serviceDetails});
}
if (newFactoryFound) {
factoryConfigurations_.insert( {currentlyParsedFactoryConfig.factoryName_, currentlyParsedFactoryConfig});
}
}
}// namespace DBus
} // namespace CommonAPI
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