1 package com.coldcore.coloradoftp.connection.impl; 2 3 import com.coldcore.coloradoftp.connection.DataPortListener; 4 import com.coldcore.coloradoftp.factory.ObjectFactory; 5 import com.coldcore.coloradoftp.factory.ObjectName; 6 7 import java.util.HashSet ; 8 import java.util.Iterator ; 9 10 22 public class DataPortListenerSequence extends HashSet <DataPortListener> { 23 24 protected int port1; 25 protected int port2; 26 protected boolean initialized; 27 28 29 public DataPortListenerSequence(int port1, int port2) { 30 this.port1 = port1; 31 this.port2 = port2; 32 } 33 34 35 protected void initialize() { 36 if (initialized) return; 37 initialized = true; 38 for (int port = port1; port <= port2; port++) { 39 DataPortListener listener = (DataPortListener) ObjectFactory.getObject(ObjectName.DATA_PORT_LISTENER); 40 listener.setPort(port); 41 add(listener); 42 } 43 } 44 45 46 public Iterator <DataPortListener> iterator() { 47 initialize(); 48 return super.iterator(); 49 } 50 51 52 public int size() { 53 initialize(); 54 return super.size(); 55 } 56 57 58 public boolean isEmpty() { 59 initialize(); 60 return super.isEmpty(); 61 } 62 } 63 | Popular Tags |