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1
22 package org.jboss.ejb.txtimer;
23
24
26 import javax.ejb.EJBException  ;
27 import javax.ejb.NoSuchObjectLocalException ;
28 import javax.ejb.Timer ;
29 import javax.ejb.TimerHandle ;
30 import javax.management.ObjectName ;
31 import java.io.Serializable ;
32 import java.text.ParseException ;
33 import java.text.SimpleDateFormat ;
34 import java.util.Date ;
35 import java.util.StringTokenizer ;
36
37
44 public class TimerHandleImpl implements TimerHandle
45 {
46
49 public static final String DATE_PATTERN = "dd-MMM-yyyy HH:mm:ss.SSS";
50
51 private String timerId;
53 private TimedObjectId timedObjectId;
54 private Date firstTime;
55 private long periode;
56 private Serializable info;
57 private int hashCode;
58
59
62 TimerHandleImpl(TimerImpl timer)
63 {
64 timerId = timer.getTimerId();
65 timedObjectId = timer.getTimedObjectId();
66 firstTime = timer.getFirstTime();
67 periode = timer.getPeriode();
68 info = timer.getInfoInternal();
69 }
70
71
74 TimerHandleImpl(String timerId, TimedObjectId timedObjectId, Date firstTime, long periode, Serializable info)
75 {
76 this.timerId = timerId;
77 this.timedObjectId = timedObjectId;
78 this.firstTime = firstTime;
79 this.periode = periode;
80 this.info = info;
81 }
82
83
86 private TimerHandleImpl(String externalForm)
87 {
88 if (externalForm.startsWith("[") == false || externalForm.endsWith("]") == false)
89 throw new IllegalArgumentException ("Square brackets expected arround: " + externalForm);
90
91 try
92 {
93 String inStr = externalForm.substring(1, externalForm.length() - 1);
95
96 if (inStr.startsWith("id=") == false)
97 throw new IllegalArgumentException ("Cannot parse: " + externalForm);
98
99 int targetIndex = inStr.indexOf(",target=");
100 int firstIndex = inStr.indexOf(",first=");
101
102 String idStr = inStr.substring(3, targetIndex);
103 String targetStr = inStr.substring(targetIndex + 8, firstIndex);
104 String restStr = inStr.substring(firstIndex + 1);
105
106 timerId = idStr;
107 timedObjectId = TimedObjectId.parse(targetStr);
108
109 StringTokenizer st = new StringTokenizer (restStr, ",=");
110 if (st.countTokens() % 2 != 0)
111 throw new IllegalArgumentException ("Cannot parse: " + externalForm);
112
113 SimpleDateFormat sdf = new SimpleDateFormat (DATE_PATTERN);
114
115 periode = -1;
116
117 while (st.hasMoreTokens())
118 {
119 String key = st.nextToken();
120 String value = st.nextToken();
121 if (key.equals("first"))
122 firstTime = sdf.parse(value);
123 if (key.equals("periode"))
124 periode = new Long (value).longValue();
125 }
126
127 if (firstTime == null || periode < 0)
128 throw new IllegalArgumentException ("Cannot parse: " + externalForm);
129 }
130 catch (ParseException e)
131 {
132 throw new IllegalArgumentException ("Cannot parse date/time in: " + externalForm);
133 }
134 }
135
136
140 public static TimerHandleImpl parse(String externalForm)
141 {
142 return new TimerHandleImpl(externalForm);
143 }
144
145
149 public String toExternalForm()
150 {
151 SimpleDateFormat sdf = new SimpleDateFormat (DATE_PATTERN);
152 String firstEvent = sdf.format(firstTime);
153 return "[id=" + timerId + ",target=" + timedObjectId + ",first=" + firstEvent + ",periode=" + periode + "]";
154 }
155
156 public String getTimerId()
157 {
158 return timerId;
159 }
160
161 public TimedObjectId getTimedObjectId()
162 {
163 return timedObjectId;
164 }
165
166 public Date getFirstTime()
167 {
168 return firstTime;
169 }
170
171 public long getPeriode()
172 {
173 return periode;
174 }
175
176 public Serializable getInfo()
177 {
178 return info;
179 }
180
181
191 public Timer getTimer() throws IllegalStateException , NoSuchObjectLocalException , EJBException
192 {
193
194 EJBTimerService ejbTimerService = EJBTimerServiceLocator.getEjbTimerService();
195 ObjectName containerId = timedObjectId.getContainerId();
196 Object instancePk = timedObjectId.getInstancePk();
197 TimerServiceImpl timerService = (TimerServiceImpl)ejbTimerService.getTimerService(containerId, instancePk);
198 if (timerService == null)
199 throw new NoSuchObjectLocalException ("TimerService not available: " + timedObjectId);
200
201 TimerImpl timer = (TimerImpl)timerService.getTimer(this);
202 if (timer == null || timer.isActive() == false)
203 throw new NoSuchObjectLocalException ("Timer not available: " + timedObjectId);
204
205 return timer;
206 }
207
208
211 public boolean equals(Object obj)
212 {
213 if (obj == this) return true;
214 if (obj instanceof TimerHandleImpl)
215 {
216 TimerHandleImpl other = (TimerHandleImpl)obj;
217 return hashCode() == other.hashCode();
218 }
219 return false;
220 }
221
222
225 public int hashCode()
226 {
227 if (hashCode == 0)
228 {
229 hashCode = toExternalForm().hashCode();
230 }
231 return hashCode;
232 }
233
234
237 public String toString()
238 {
239 return toExternalForm();
240 }
241 }
242 |
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