value_t normalize_value(const std::string& s) const {
std::map<std::string, value_t>::const_iterator it = values.find(s);
if(it == values.end()) {
return value_default;
}
else {
return it->second;
}
}
// Handle request for the pair.
// Throws an exception if pair is not found.
std::string handle_request_for_pair(
const msg_request_by_key & what )
{
auto r = m_values.find( what.m_key );
if( r == m_values.end() )
throw key_not_found_exception( "key is not found in the storage: " +
what.m_key );
return r->second;
}