/** Begin running the websocket server. */
@Override
public void run() {
try {
Logger.info(
MessageFormat.format("WebSocketServerBridge listening on port {0}...", this.port));
serverSocket = new ServerSocket(this.port);
// Waiting for the server socket to close or until the server is shutdown manually.
while ((this.isServerRunning) && (!serverSocket.isClosed())) {
// Wait for incoming connections.
Socket socket = serverSocket.accept();
// Try to reclaim any threads if we are exceeding our maximum.
// TimeComplexity: O(n) -- Where n is the number of threads valid or invalid.
// NOTE: Minimal unit testing has been done here...more testing is required.
if (threads.size() + 1 > this.getMaximumThreads()) {
for (int i = 0; i < threads.size(); i++) {
if (!threads.get(i).isAlive()) {
threads.remove(i);
}
}
}
// Make sure we have enough threads before accepting.
// NOTE: Minimal unit testing has been done here...more testing is required.
if ((threads.size() + 1) <= this.getMaximumThreads()) {
Connection t = new Connection(socket, this.serviceLayer, this);
t.start();
threads.add(t);
} else {
Logger.debug("The server has reached its thread maximum...");
}
}
// END OF while ( (this.isServerRunning) && (!serverSocket.isClosed()) )...
Logger.info("WebSocket server stopping...");
} catch (IOException ioException) {
// --- CR (8/10/13) --- Only log the event if the server is still running. This should
// prevent an error message from appearing when the server is restarted.
if (this.isServerRunning) {
Logger.info(
MessageFormat.format("The port {0} could not be opened for WebSockets.", this.port));
Logger.debug(ioException.getMessage());
}
// Close all threads.
// TimeComplexity: O(n) -- Where n is the number of threads valid or invalid.
for (Connection t : threads) {
if (t.isAlive()) {
t.close();
}
}
}
}
