ClientEndpoint createEndpoint(Connection conn) {
if (!conn.live()) {
LOGGER.severe("Can't create and endpoint for a dead connection");
return null;
}
String clientUuid = UuidUtil.createClientUuid(conn.getEndPoint());
ClientEndpoint endpoint = new ClientEndpoint(clientEngine, conn, clientUuid);
if (endpoints.putIfAbsent(conn, endpoint) != null) {
LOGGER.severe("An endpoint already exists for connection:" + conn);
}
return endpoint;
}
public void shutdown() {
for (ClientEndpoint endpoint : endpoints.values()) {
try {
endpoint.destroy();
} catch (LoginException e) {
logger.finest(e.getMessage());
}
try {
final Connection conn = endpoint.getConnection();
if (conn.live()) {
conn.close();
}
} catch (Exception e) {
logger.finest(e);
}
}
endpoints.clear();
}
public void handleMaster(Master master) {
if (!node.joined() && !thisAddress.equals(master.address)) {
logger.log(Level.FINEST, "Handling master response: " + master);
final Address currentMaster = node.getMasterAddress();
if (currentMaster != null && !currentMaster.equals(master.address)) {
final Connection conn = node.connectionManager.getConnection(currentMaster);
if (conn != null && conn.live()) {
logger.log(
Level.FINEST,
"Ignoring master response "
+ master
+ " since node has an active master: "
+ currentMaster);
return;
}
}
node.setMasterAddress(master.address);
node.connectionManager.getOrConnect(master.address);
if (!sendJoinRequest(master.address, true)) {
logger.log(
Level.WARNING, "Could not create connection to possible master " + master.address);
}
}
}
public final void heartBeater() {
if (!node.joined() || !node.isActive()) return;
long now = Clock.currentTimeMillis();
if (isMaster()) {
List<Address> lsDeadAddresses = null;
for (MemberImpl memberImpl : lsMembers) {
final Address address = memberImpl.getAddress();
if (!thisAddress.equals(address)) {
try {
Connection conn = node.connectionManager.getOrConnect(address);
if (conn != null && conn.live()) {
if ((now - memberImpl.getLastRead()) >= (MAX_NO_HEARTBEAT_MILLIS)) {
conn = null;
if (lsDeadAddresses == null) {
lsDeadAddresses = new ArrayList<Address>();
}
logger.log(
Level.WARNING,
"Added "
+ address
+ " to list of dead addresses because of timeout since last read");
lsDeadAddresses.add(address);
} else if ((now - memberImpl.getLastRead()) >= 5000
&& (now - memberImpl.getLastPing()) >= 5000) {
ping(memberImpl);
}
if ((now - memberImpl.getLastWrite()) > 500) {
sendHeartbeat(conn);
}
Long lastConfirmation = memberMasterConfirmationTimes.get(memberImpl);
if (lastConfirmation == null
|| (now - lastConfirmation > MAX_NO_MASTER_CONFIRMATION_MILLIS)) {
if (lsDeadAddresses == null) {
lsDeadAddresses = new ArrayList<Address>();
}
logger.log(
Level.WARNING,
"Added "
+ address
+ " to list of dead addresses because it has not sent a master confirmation recently");
lsDeadAddresses.add(address);
}
} else if (conn == null && (now - memberImpl.getLastRead()) > 5000) {
logMissingConnection(address);
memberImpl.didRead();
}
} catch (Exception e) {
logger.log(Level.SEVERE, e.getMessage(), e);
}
}
}
if (lsDeadAddresses != null) {
for (Address address : lsDeadAddresses) {
logger.log(Level.FINEST, "No heartbeat should remove " + address);
doRemoveAddress(address);
}
}
} else {
// send heartbeat to master
Address masterAddress = getMasterAddress();
if (masterAddress != null) {
final Connection connMaster = node.connectionManager.getOrConnect(masterAddress);
MemberImpl masterMember = getMember(masterAddress);
boolean removed = false;
if (masterMember != null) {
if ((now - masterMember.getLastRead()) >= (MAX_NO_HEARTBEAT_MILLIS)) {
logger.log(
Level.WARNING, "Master node has timed out its heartbeat and will be removed");
doRemoveAddress(masterAddress);
removed = true;
} else if ((now - masterMember.getLastRead()) >= 5000
&& (now - masterMember.getLastPing()) >= 5000) {
ping(masterMember);
}
}
if (!removed) {
sendHeartbeat(connMaster);
}
}
for (MemberImpl member : lsMembers) {
if (!member.localMember()) {
Address address = member.getAddress();
Connection conn = node.connectionManager.getOrConnect(address);
if (conn != null) {
sendHeartbeat(conn);
} else {
logger.log(Level.FINEST, "Could not connect to " + address + " to send heartbeat");
}
}
}
}
}