blob: aff5bcc007e60f3d21bf3f27da55e4d8609cbcc6 [file] [log] [blame]
/*
* Copyright (C) 2018 CESNET, https://photonics.cesnet.cz/
* Copyright (C) 2018 FIT CVUT, https://fit.cvut.cz/
*
* Written by Václav Kubernát <kubervac@fit.cvut.cz>
*
*/
#include <iostream>
#include "datastore_access.hpp"
#include "interpreter.hpp"
struct leafDataToString : boost::static_visitor<std::string> {
std::string operator()(const enum_& data) const
{
return data.m_value;
}
std::string operator()(const binary_& data) const
{
return data.m_value;
}
template <typename T>
std::string operator()(const T& data) const
{
std::stringstream stream;
stream << data;
return stream.str();
}
};
void Interpreter::operator()(const commit_&) const
{
m_datastore.commitChanges();
}
void Interpreter::operator()(const discard_&) const
{
m_datastore.discardChanges();
}
void Interpreter::operator()(const set_& set) const
{
m_datastore.setLeaf(absolutePathFromCommand(set), set.m_data);
}
void Interpreter::operator()(const get_& get) const
{
auto items = m_datastore.getItems(absolutePathFromCommand(get));
for (auto it : items) {
std::cout << it.first << " = " << boost::apply_visitor(leafDataToString(), it.second) << std::endl;
}
}
void Interpreter::operator()(const cd_& cd) const
{
m_parser.changeNode(cd.m_path);
}
void Interpreter::operator()(const create_& create) const
{
m_datastore.createPresenceContainer(absolutePathFromCommand(create));
}
void Interpreter::operator()(const delete_& delet) const
{
m_datastore.deletePresenceContainer(absolutePathFromCommand(delet));
}
void Interpreter::operator()(const ls_& ls) const
{
std::cout << "Possible nodes:" << std::endl;
auto recursion{Recursion::NonRecursive};
for (auto it : ls.m_options) {
if (it == LsOption::Recursive)
recursion = Recursion::Recursive;
}
for (const auto& it : m_parser.availableNodes(ls.m_path, recursion))
std::cout << it << std::endl;
}
struct commandLongHelpVisitor : boost::static_visitor<const char*> {
template <typename T>
auto constexpr operator()(boost::type<T>) const
{
return T::longHelp;
}
};
struct commandShortHelpVisitor : boost::static_visitor<const char*> {
template <typename T>
auto constexpr operator()(boost::type<T>) const
{
return T::shortHelp;
}
};
void Interpreter::operator()(const help_& help) const
{
if (help.m_cmd)
std::cout << boost::apply_visitor(commandLongHelpVisitor(), help.m_cmd.get()) << std::endl;
else
boost::mpl::for_each<CommandTypes, boost::type<boost::mpl::_>>([](auto cmd) {
std::cout << commandShortHelpVisitor()(cmd) << std::endl;
});
}
template <typename T>
std::string Interpreter::absolutePathFromCommand(const T& command) const
{
if (command.m_path.m_scope == Scope::Absolute)
return "/" + pathToDataString(command.m_path);
else
return joinPaths(m_parser.currentNode(), pathToDataString(command.m_path));
}
struct pathToStringVisitor : boost::static_visitor<std::string> {
std::string operator()(const schemaPath_& path) const
{
return pathToSchemaString(path);
}
std::string operator()(const dataPath_& path) const
{
return pathToDataString(path);
}
};
struct getPathScopeVisitor : boost::static_visitor<Scope> {
template <typename T>
Scope operator()(const T& path) const
{
return path.m_scope;
}
};
std::string Interpreter::absolutePathFromCommand(const get_& get) const
{
if (!get.m_path) {
return m_parser.currentNode();
}
const auto path = *get.m_path;
std::string pathString = boost::apply_visitor(pathToStringVisitor(), path);
auto pathScope{boost::apply_visitor(getPathScopeVisitor(), path)};
if (pathScope == Scope::Absolute) {
return "/" + pathString;
} else {
return joinPaths(m_parser.currentNode(), pathString);
}
}
Interpreter::Interpreter(Parser& parser, DatastoreAccess& datastore)
: m_parser(parser)
, m_datastore(datastore)
{
}