/** Checks if a message should be passed up, or not */
protected boolean shouldDropUpMessage(
@SuppressWarnings("UnusedParameters") Message msg, Address sender) {
if (discard_all && !sender.equals(localAddress())) return true;
if (ignoredMembers.contains(sender)) {
if (log.isTraceEnabled()) log.trace(localAddress + ": dropping message from " + sender);
num_up++;
return true;
}
if (up > 0) {
double r = Math.random();
if (r < up) {
if (excludeItself && sender.equals(localAddress())) {
if (log.isTraceEnabled()) log.trace("excluding myself");
} else {
if (log.isTraceEnabled()) log.trace(localAddress + ": dropping message from " + sender);
num_up++;
return true;
}
}
}
return false;
}
public Object down(Message msg) {
Address dest = msg.getDest();
boolean multicast = dest == null;
if (msg.getSrc() == null) msg.setSrc(localAddress());
if (discard_all) {
if (dest == null || dest.equals(localAddress())) loopback(msg);
return null;
}
if (!multicast && drop_down_unicasts > 0) {
drop_down_unicasts = Math.max(0, drop_down_unicasts - 1);
return null;
}
if (multicast && drop_down_multicasts > 0) {
drop_down_multicasts = Math.max(0, drop_down_multicasts - 1);
return null;
}
if (down > 0) {
double r = Math.random();
if (r < down) {
if (excludeItself && dest != null && dest.equals(localAddress())) {
if (log.isTraceEnabled()) log.trace("excluding itself");
} else {
log.trace("dropping message");
num_down++;
return null;
}
}
}
return down_prot.down(msg);
}