1 /*
   2  * Copyright (c) 2007, 2017 Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation. Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package org.jemmy.timing;
  26 
  27 import java.util.HashMap;
  28 import java.util.LinkedList;
  29 import java.util.TreeMap;
  30 import org.jemmy.JemmyException;
  31 import org.jemmy.action.Action;
  32 import org.jemmy.action.GetAction;
  33 import org.jemmy.timing.TimedCriteria;
  34 import org.jemmy.control.Wrap;
  35 import org.jemmy.env.Environment;
  36 
  37 /**
  38  *
  39  * @author shura
  40  */
  41 public class Timeline<T> {
  42 
  43     private LinkedList<TimedAction> list = new LinkedList<TimedAction>();
  44     private Environment env;
  45     private T control;
  46     private long startTime = 0;
  47     private long tic = 10;
  48 
  49     public Timeline(long startTime, Environment env, T control) {
  50         this.startTime = startTime;
  51         this.env = env;
  52         this.control = control;
  53     }
  54 
  55     public Timeline(long startTime, Wrap<? extends T> wrap) {
  56         this(startTime, wrap.getEnvironment(), wrap.getControl());
  57     }
  58 
  59     public Timeline(Environment env, T control) {
  60         this(0, env, control);
  61     }
  62 
  63     public Timeline(Wrap<T> wrap) {
  64         this(wrap.getEnvironment(), wrap.getControl());
  65     }
  66 
  67     public synchronized final Timeline<T> schedule(long when, TimedCriteria<T> frame) {
  68         if (when >= 0) {
  69             if (list.size() > 0) {
  70                 for (int i = 0; i < list.size(); i++) {
  71                     if (list.get(i).when >= when) {
  72                         list.add(i, new TimedAction(frame, when));
  73                         return this;
  74                     }
  75                 }
  76                 list.add(new TimedAction(frame, when));
  77             } else {
  78                 list.add(new TimedAction(frame, when));
  79             }
  80         }
  81         return this;
  82     }
  83 
  84     public synchronized final Timeline<T> schedule(long start, long until, long delta, TimedCriteria<T> frame) {
  85         long when = start;
  86         do {
  87             schedule(when, frame);
  88         } while ((when += delta) <= until);
  89         return this;
  90     }
  91 
  92     synchronized TimedAction next(long until) {
  93         if (list.get(0).when <= until) {
  94             return remove();
  95         }
  96         return null;
  97     }
  98 
  99     synchronized TimedAction remove() {
 100         return list.removeFirst();
 101     }
 102 
 103     public void start() {
 104         if (startTime > 0) {
 105             long before = System.currentTimeMillis();
 106             while (System.currentTimeMillis() < startTime + before) {
 107                 try {
 108                     Thread.sleep(tic);
 109                 } catch (InterruptedException ex) {
 110                     throw new JemmyException("Sleep interrupted.", ex);
 111                 }
 112             }
 113         }
 114         long start = System.currentTimeMillis();
 115         while (hasMore()) {
 116             long now = System.currentTimeMillis() - start;
 117             TimedAction next = next(now);
 118             if (next != null) {
 119                 env.getExecutor().execute(env,
 120                         true, next, Long.valueOf(now));
 121                 if (!next.getResult()) {
 122                     throw new JemmyException("Check failed on " + now + ":", next.criteria);
 123                 }
 124             }
 125             try {
 126                 Thread.sleep(tic);
 127             } catch (InterruptedException ex) {
 128                 throw new JemmyException("Sleep interrupted.", ex);
 129             }
 130         }
 131     }
 132 
 133     public boolean hasMore() {
 134         return list.size() > 0;
 135     }
 136 
 137     private class TimedAction extends GetAction<Boolean> {
 138 
 139         long when;
 140         TimedCriteria<T> criteria;
 141 
 142         public TimedAction(TimedCriteria<T> criteria, long when) {
 143             this.criteria = criteria;
 144             this.when = when;
 145         }
 146 
 147         @Override
 148         public void run(Object... parameters) {
 149             setResult(criteria.check(control, (Long) parameters[0]));
 150         }
 151     }
 152 }