private DiscoveryMessage readChannelAvailable() throws IOException {
MessageOriginator originator = readMessageOriginator();
String group = input.readString();
String channel = input.readString();
MultiChoiceAddress address = readAddress();
address = address.addAddresses(remoteAddress.getCandidates());
return new ChannelAvailable(originator, group, channel, address);
}
private DiscoveryMessage readLookupRequest() throws IOException {
MessageOriginator originator = readMessageOriginator();