protected void doTask() throws Exception {
while (stateCheck(STATECHECK_RUNNING)) {
try {
Socket client = server.accept();
if (null != client) {
ICShell clientShell = new ICShellSocket(client);
LineProcessor processor;
if (null != procNode) {
processor =
(ICShell.LineProcessor)
ICAppFrame.getComponent(procNode, ICShell.LineProcessor.class);
} else {
processor =
new ICShellCmdProcessor(
(ICGenCommand) ICAppFrame.getComponent(APP_COMMANDS, ICGenCommand.class));
}
clientShell.setProcessor(processor);
SocketAddress sa = client.getRemoteSocketAddress();
clientShell.setName(getName() + " client connected from " + sa);
clientShell.startShell();
}
} catch (SocketException ex) {
// if the accept failed because stopRequested(), we should not throw exception
if (stateCheck(STATECHECK_RUNNING)) {
throw ex;
}
}
}
}
protected boolean init() throws Exception {
String ownerName = null;
boolean portAvailable = true;
try {
Socket socket = new Socket("localhost", port);
socket.setSoTimeout(soTimeout);
ICShell testShell = new ICShellSocket(socket);
ICShell.LineProcessor rp =
new ICShell.LineProcessor(false) {
public Object processLine(String line) throws Exception {
return null;
}
};
testShell.setProcessor(rp);
testShell.startShell();
// if it starts without problems, it means that the port is already served
ownerName = testShell.getName();
testShell.endShell();
portAvailable = false;
} catch (Exception ex) {
// do nothing, this is the good way now
}
if (null != ownerName) {
throw new Exception("The port " + port + " is owned by another application: " + ownerName);
}
if (!portAvailable) {
throw new Exception("The port " + port + " is not available!");
}
server = new ServerSocket(port);
return true;
};