/**
* Caller by the layer above this layer. Usually we just put this Message into the send queue and
* let one or more worker threads handle it. A worker thread then removes the Message from the
* send queue, performs a conversion and adds the modified Message to the send queue of the layer
* below it, by calling Down).
*/
public Object down(Event evt) {
Message msg;
Address dest_addr;
switch (evt.getType()) {
case Event.MSG:
if (done) {
break;
}
msg = (Message) evt.getArg();
dest_addr = msg.getDest();
if (dest_addr == null) num_msgs++;
if (num_msgs >= expected_msgs) {
stop = System.currentTimeMillis();
synchronized (this) {
done = true;
this.notifyAll();
}
if (log.isInfoEnabled())
log.info("all done (num_msgs=" + num_msgs + ", expected_msgs=" + expected_msgs);
}
break;
case Event.CONNECT:
return null;
}
if (getDownProtocol() != null) return down_prot.down(evt);
return null;
}
public Object up(Event evt) {
Message msg;
Address dest_addr;
switch (evt.getType()) {
case Event.MSG:
if (done) {
if (log.isWarnEnabled()) log.warn("all done (discarding msg)");
break;
}
msg = (Message) evt.getArg();
dest_addr = msg.getDest();
if (dest_addr == null) num_msgs++;
if (num_msgs >= expected_msgs) {
stop = System.currentTimeMillis();
synchronized (this) {
done = true;
this.notifyAll();
}
if (log.isInfoEnabled())
log.info("all done (num_msgs=" + num_msgs + ", expected_msgs=" + expected_msgs);
} else {
return up_prot.up(evt);
}
}
return up_prot.up(evt);
}
protected Object handleDownEvent(Event evt) {
Object ret=super.handleDownEvent(evt);
if(evt.getType() == Event.VIEW_CHANGE) {
Set<Address> physical_mbrs=new HashSet<Address>();
for(Address addr: members) {
PhysicalAddress physical_addr=getPhysicalAddressFromCache(addr);
if(physical_addr != null)
physical_mbrs.add(physical_addr);
}
retainAll(physical_mbrs); // remove all connections from the ConnectionTable which are not members
}
return ret;
}