public void internalPublish(PublishMessage msg) {
final AbstractMessage.QOSType qos = msg.getQos();
final String topic = msg.getTopicName();
LOG.info("embedded PUBLISH on topic <{}> with QoS {}", topic, qos);
String guid = null;
IMessagesStore.StoredMessage toStoreMsg = asStoredMessage(msg);
toStoreMsg.setClientID("BROKER_SELF");
toStoreMsg.setMessageID(1);
if (qos == AbstractMessage.QOSType.EXACTLY_ONCE) { // QoS2
guid = m_messagesStore.storePublishForFuture(toStoreMsg);
}
route2Subscribers(toStoreMsg);
if (!msg.isRetainFlag()) {
return;
}
if (qos == AbstractMessage.QOSType.MOST_ONE || !msg.getPayload().hasRemaining()) {
// QoS == 0 && retain => clean old retained
m_messagesStore.cleanRetained(topic);
return;
}
if (guid == null) {
// before wasn't stored
guid = m_messagesStore.storePublishForFuture(toStoreMsg);
}
m_messagesStore.storeRetained(topic, guid);
}
private static IMessagesStore.StoredMessage asStoredMessage(PublishMessage msg) {
IMessagesStore.StoredMessage stored =
new IMessagesStore.StoredMessage(
msg.getPayload().array(), msg.getQos(), msg.getTopicName());
stored.setRetained(msg.isRetainFlag());
stored.setMessageID(msg.getMessageID());
return stored;
}
/** Specialized version to publish will testament message. */
private void forwardPublishWill(WillMessage will, String clientID) {
// it has just to publish the message downstream to the subscribers
// NB it's a will publish, it needs a PacketIdentifier for this conn, default to 1
Integer messageId = null;
if (will.getQos() != AbstractMessage.QOSType.MOST_ONE) {
messageId = m_messagesStore.nextPacketID(clientID);
}
IMessagesStore.StoredMessage tobeStored = asStoredMessage(will);
tobeStored.setClientID(clientID);
tobeStored.setMessageID(messageId);
route2Subscribers(tobeStored);
}