private static void join() {
System.out.println("Joining server group...");
Properties newRMIconfig = localServer.getRmiSettings();
findActive();
if (remoteServer != null) {
try {
String tempselfName = remoteServer.serverJoin(newRMIconfig.getProperty("publicIP"));
if (tempselfName != null) {
selfName = tempselfName;
newRMIconfig.setProperty("name", selfName);
try {
PropertyHandler.save(RMI_CONFIG_FILE, newRMIconfig);
init();
} catch (Exception ex) {
System.out.println("save rmiserver config failed");
}
System.out.println("You have joined the server group of " + remoteServer.getServerName());
} else {
System.out.println("you are already in the group of " + remoteServer.getServerName());
}
} catch (RemoteException ex) {
System.out.println("no active server");
System.exit(1);
}
startClientMode();
} else {
System.out.println("no active server");
System.exit(1);
}
}
private static void startSync() {
RemoteException rex;
Properties serverList = null;
if (serverPortal != null) {
while (true) {
try {
System.out.println(serverPortal.hello());
serverList = serverPortal.getServerList();
try {
PropertyHandler.save(SERVER_LIST_FILE, serverList);
ClientConnection.getInstance().reload();
} catch (Exception ex) {
System.out.println("server list save failed");
}
sync.setServerPortal(serverPortal);
sync.start();
wait(syncInterval);
} catch (RemoteException ex) {
rex = ex;
break;
}
}
System.out.println("Disconnected, trying to reconnect...");
reconnect(rex);
startSync();
} else {
System.out.println("No ative server");
}
}
private static void startClientMode() {
System.out.println("***back-up mode***");
try {
activeServerIndex = ClientConnection.getServerIndex(remoteServer.getServerName());
System.out.println(remoteServer.hello());
ServerSync(); // loop
} catch (RemoteException ex) {
electNewActive();
}
}
private static void leave() {
System.out.println("Leaving server group...");
findActive();
if (remoteServer != null) {
try {
if (remoteServer.serverLeave(selfName)) {
System.out.println(
"You have left from the server group of " + remoteServer.getServerName());
} else {
System.out.println("You are not part of server group of " + remoteServer.getServerName());
}
} catch (RemoteException ex) {
System.out.println("no active server");
System.exit(1);
}
}
}
private static void ServerSync() throws RemoteException {
String userPattern = localServer.getRmiSettings().getProperty("userdatapath");
String metaPattern = localServer.getRmiSettings().getProperty("metadatapath");
String destFilePath = userPattern.replace("$ftpuser", remoteServer.getFTPUser());
String metaFolder = metaPattern.replace("$ftpuser", remoteServer.getFTPUser());
String userListFileName = metaFolder + localServer.getRmiSettings().getProperty("userlistfile");
String accountManagerFileName = metaFolder + localServer.getRmiSettings().getProperty("amfile");
String serverFileMatrixFileName =
metaFolder + localServer.getRmiSettings().getProperty("sfmfile");
int refreshInterval = clientModeConnection.getRefreshInterval();
final int MAX_THREADS = 99; // thread pool to optimize the resouce
String serverID = selfName;
SFTP sftp =
new SFTP(remoteServer.getIP(), remoteServer.getFTPUser(), remoteServer, destFilePath);
ArrayList<String> downloadList = new ArrayList<>();
// Create metadata folder
FileOperation.createFolder(metaFolder);
// Create users folder
FileOperation.createFolder(destFilePath);
ExecutorService pool = Executors.newFixedThreadPool(MAX_THREADS);
while (true) {
try {
Thread.sleep(refreshInterval * 1000);
} catch (InterruptedException ex) {
}
System.out.println("Sync...");
AccountManager am = remoteServer.getAccountManager();
Properties userlist = remoteServer.getUserList();
Properties serverlist = remoteServer.getServerList();
FileDeviceMatrix matrix = remoteServer.getServerMatrix();
FileOperation.save(am, accountManagerFileName);
FileOperation.save(matrix, serverFileMatrixFileName);
try {
PropertyHandler.saveAbs(userListFileName, userlist);
} catch (Exception ex1) {
System.out.println("save userList failed!");
}
try {
PropertyHandler.save(SERVER_LIST_FILE, serverlist);
} catch (Exception ex1) {
System.out.println("save userList failed!");
}
System.out.println("ServerSync for: " + serverID + "\n" + matrix);
for (FileDeviceList node : matrix.getMatrix()) {
if (!node.getServerNode(serverID).getUpdated().equals(DeviceInfoNode.Updated.TRUE)) {
if (am.getAccountByUser(node.getUserName())
.getFileList()
.findFile(node.getFileName())
.getState()
.equals(FileAttr.State.DELETE)) {
FileOperation.deleteFile(
remoteServer.getDestFolder(node.getUserName(), false) + node.getFileName());
remoteServer.setSelfTrueByServer(node.getUserName(), serverID, node.getFileName());
remoteServer.removeNodeIfAllT(node.getUserName(), node.getFileName());
} else {
FileOperation.createFolder(remoteServer.getDestFolder(node.getUserName(), true));
pool.execute(
new ServerDownload(
sftp,
node.getUserName(),
node.getFileName(),
remoteServer.getDestFolder(node.getUserName(), true),
serverID,
downloadList,
remoteServer));
}
}
}
}
}