protected Object handleUpEvent(Event evt) throws Exception {
switch (evt.getType()) {
case Event.MSG:
if (msg_listener != null) msg_listener.receive((Message) evt.getArg());
break;
case Event.GET_APPLSTATE: // reply with GET_APPLSTATE_OK
byte[] tmp_state = null;
if (msg_listener != null) {
ByteArrayOutputStream output = new ByteArrayOutputStream(1024);
msg_listener.getState(output);
tmp_state = output.toByteArray();
}
return new StateTransferInfo(null, 0L, tmp_state);
case Event.GET_STATE_OK:
if (msg_listener != null) {
StateTransferResult result = (StateTransferResult) evt.getArg();
if (result.hasBuffer()) {
ByteArrayInputStream input = new ByteArrayInputStream(result.getBuffer());
msg_listener.setState(input);
}
}
break;
case Event.STATE_TRANSFER_OUTPUTSTREAM:
OutputStream os = (OutputStream) evt.getArg();
if (msg_listener != null && os != null) {
msg_listener.getState(os);
}
break;
case Event.STATE_TRANSFER_INPUTSTREAM:
InputStream is = (InputStream) evt.getArg();
if (msg_listener != null && is != null) msg_listener.setState(is);
break;
case Event.VIEW_CHANGE:
View v = (View) evt.getArg();
List<Address> new_mbrs = v.getMembers();
setMembers(new_mbrs);
if (membership_listener != null) membership_listener.viewAccepted(v);
break;
case Event.SET_LOCAL_ADDRESS:
if (log.isTraceEnabled())
log.trace("setting local_addr (" + local_addr + ") to " + evt.getArg());
local_addr = (Address) evt.getArg();
break;
case Event.SUSPECT:
if (membership_listener != null) membership_listener.suspect((Address) evt.getArg());
break;
case Event.BLOCK:
if (membership_listener != null) membership_listener.block();
break;
case Event.UNBLOCK:
if (membership_listener != null) membership_listener.unblock();
break;
}
return null;
}
