src/mfw/timer/newer/EventGroup.java

   1 /**
   2  *    Copyright 2011 Huize Dai <geb.1989@gmail.com>
   3  *
   4  *    This file is part of MFW.
   5  *
   6  *    MFW is free software: you can redistribute it and/or modify
   7  *    it under the terms of the GNU Lesser General Public License as published by
   8  *    the Free Software Foundation, either version 3 of the License, or
   9  *    (at your option) any later version.
  10  *
  11  *    MFW is distributed in the hope that it will be useful,
  12  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *    GNU Lesser General Public License for more details.
  15  *
  16  *    You should have received a copy of the GNU Lesser General Public License
  17  *    along with MFW.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 package mfw.timer.newer;
  20
  21 public class EventGroup extends TimerEvent implements Event {
  22
  23         private final Event[] atoms;
  24         private int ptr = 0;
  25         private boolean isContinue = true;
  26         private final Object lock = new Object();
  27
  28         public EventGroup(int len) {
  29                 atoms = new Event[len];
  30         }
  31
  32         public boolean add(Event event) {
  33                 synchronized (lock) {
  34                         if (ptr < atoms.length) {
  35                                 atoms[ptr++] = event;
  36                                 return true;
  37                         } else {
  38                                 return false;
  39                         }
  40                 }
  41         }
  42
  43         public void close() {
  44                 isContinue = false;
  45         }
  46
  47         public boolean isContinue() {
  48                 for (int i = 0; i < ptr;) {
  49                         if (!atoms[i].isContinue()) {
  50                                 synchronized (lock) {
  51                                         atoms[i] = atoms[--ptr];
  52                                 }
  53                         } else {
  54                                 i++;
  55                         }
  56                 }
  57                 return isContinue;
  58         }
  59
  60 }