private void closeConnection() {
Debug.println("NetScan closing connection", 5);
try {
if (in != null) in.close();
if (socket != null) socket.close();
if (serverSocket != null) {
serverSocket.close();
}
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
/** Creates a network scan over the specified port */
public NetScan(TransactionId tid, TupleDesc td, int port) {
try {
this.tid = tid;
this.td = td;
this.port = port;
serverSocket = Utilities.createServerSocket(port);
} catch (IOException ioe) {
ioe.printStackTrace();
closeConnection();
throw new RuntimeException(ioe);
}
}
/** Opens this net scan. */
public void open() throws DbException {
try {
if (socket == null) {
Debug.println("NetScan accepting @ :" + port);
socket = Utilities.accept(serverSocket);
Debug.println("NetScan accepted, creating input stream...");
in = new DataInputStream(socket.getInputStream());
Debug.println("NetScan opened");
}
} catch (IOException ioe) {
ioe.printStackTrace();
closeConnection();
throw new DbException(ioe);
}
}