bool MessageRouter::registerHandler(
MessageHandler& handler,
const bool& isDefaultHandler)
{
bool isRegistered = false;
// Find an empty slot and store the handler.
for (int i = 0; i < MAX_NUM_HANDLERS; i++)
{
if (handlers[i] == 0)
{
handlers[i] = &handler;
isRegistered = true;
break;
}
}
// Log a failure to register.
if (isRegistered == false)
{
Logger::logDebug("Failed to register handler " + handler.getId() + ".\n");
}
else
{
Logger::logDebug("Registered message handler " + handler.getId() + ".\n");
if (isDefaultHandler)
{
defaultHandler = &handler;
Logger::logDebug("Handler " + handler.getId() + " set as default handler.\n");
}
}
return (isRegistered);
}
void MessageRouter::handleMessages(
Adapter& adapter)
{
bool handledMessage = false;
// Get the first available message.
const Message* message = adapter.getMessage();
if (message)
{
Logger::logDebug("MessageRouter::handleMessages: Got message " + toString(message->getMessageId()) + ".\n");
}
while (message)
{
MessageHandler* handler = getHandler(message->getDestination());
if (!handler)
{
Logger::logDebug("Failed to handle message " + toString(message->getMessageId()) +
". No handler specified for destination \"" + message->getDestination() + "\"\n");
}
else
{
// Allow the handler to handle the message.
handledMessage = handler->handleMessage(*message);
if (!handledMessage)
{
Logger::logDebug("Component \"" + handler->getId() + "\" failed to handle message " +
toString(message->getMessageId()) + ". Unsupported message.\n");
}
}
// Free up the memory from the handled message.
delete message;
// Get the next available message.
message = adapter.getMessage();
if (message)
{
Logger::logDebug("MessageRouter::handleMessages: Got message " + toString(message->getMessageId()) + ".\n");
}
}
}
