void DimServerList::infoHandler ( )

protectedvirtual

A DimInfo to retrieve the SERVER_LIST from teh DNS server.

Whenever the service with the server list is updated this functions changes the contents of the list and calls RemoveAllServers(), RemoveServer() and AddServer() where appropriate.

Implements DimInfoHandler.

Reimplemented in DimServiceInfoList.

Definition at line 54 of file DimServerList.cc.

References DimServerListImp::AddServer(), buffer, fDimServers, fList, fServerList, DimInfoHandler::getInfo(), DimInfo::getString(), DimServerListImp::RemoveAllServers(), DimServerListImp::RemoveServer(), and str.

{
    if (getInfo()!=&fDimServers)
        return;

    // Get the received string from the handler
    const string str = fDimServers.getString();

    // Check if it starts with + or -
    if (str[0]!='-' && str[0]!='+')
    {
        fList->RemoveAllServers();
        fServerList.clear();
    }

    // Create a stringstream to tokenize the received string
    stringstream stream(str);

    // Loop over the seperating tokens
    string buffer;
    while (getline(stream, buffer, '|'))
    {
        // The first part before the first @ is the server name
        const string server = buffer.substr(0, buffer.find_first_of('@'));
        if (server.empty())
            continue;

        // If it starts with a - we have to remove an entry
        if (server[0]=='-')
        {
            const string trunc = server.substr(1);

            // Check if this server is not found in the list.
            // This should never happen if Dim works reliable
            const ServerList::iterator v = find(fServerList.begin(), fServerList.end(), trunc);
            if (v==fServerList.end())
            {
                //stringstream err;
                //err << "DimServerList: Server '" << trunc << "' not in list as it ought to be.";
                //throw runtime_error(err.str());
            }

            fList->RemoveServer(trunc);
            fServerList.erase(v);

            continue;
        }

        // If it starts with a + we have to add an entry
        if (server[0]=='+')
        {
            const string trunc = server.substr(1);

            // Check if this server is already in the list.
            // This should never happen if Dim works reliable
            const ServerList::iterator v = find(fServerList.begin(), fServerList.end(), trunc);
            if (v!=fServerList.end())
            {
                fList->RemoveServer(trunc);
                fServerList.erase(v);

                //stringstream err;
                //err << "DimServerList: Server '" << trunc << "' in list not as it ought to be.";
                //throw runtime_error(err.str());
            }

            fServerList.push_back(trunc);
            fList->AddServer(trunc);

            continue;
        }

        // In any other case we just add the entry to the list
        fServerList.push_back(server);
        fList->AddServer(server);
    }
}

Here is the call graph for this function: