1 |
|
|
2 |
|
|
3 |
|
|
4 |
|
|
5 |
|
|
6 |
|
|
7 |
|
|
8 |
|
|
9 |
|
|
10 |
|
|
11 |
|
|
12 |
|
|
13 |
|
|
14 |
|
|
15 |
|
|
16 |
|
|
17 |
|
package org.apache.camel.bam.rules; |
18 |
|
|
19 |
|
import java.util.ArrayList; |
20 |
|
import java.util.Date; |
21 |
|
|
22 |
|
import org.apache.camel.Exchange; |
23 |
|
import org.apache.camel.Processor; |
24 |
|
import org.apache.camel.Route; |
25 |
|
import org.apache.camel.bam.TimeExpression; |
26 |
|
import org.apache.camel.bam.model.ActivityState; |
27 |
|
import org.apache.camel.bam.model.ProcessInstance; |
28 |
|
import org.apache.camel.impl.DefaultExchange; |
29 |
|
import org.apache.camel.impl.RouteContext; |
30 |
|
import org.apache.camel.impl.ServiceSupport; |
31 |
|
import org.apache.camel.model.OutputType; |
32 |
|
import org.apache.camel.model.RouteType; |
33 |
|
import org.apache.camel.util.Time; |
34 |
|
import org.apache.commons.logging.Log; |
35 |
|
import org.apache.commons.logging.LogFactory; |
36 |
|
|
37 |
|
import static org.apache.camel.util.ServiceHelper.startServices; |
38 |
|
import static org.apache.camel.util.ServiceHelper.stopServices; |
39 |
|
|
40 |
|
|
41 |
|
|
42 |
|
|
43 |
|
|
44 |
|
|
45 |
|
public class TemporalRule extends ServiceSupport { |
46 |
2 |
private static final transient Log LOG = LogFactory.getLog(TemporalRule.class); |
47 |
|
private TimeExpression first; |
48 |
|
private TimeExpression second; |
49 |
|
private long expectedMillis; |
50 |
|
private long overdueMillis; |
51 |
|
private Processor overdueAction; |
52 |
2 |
private OutputType overdueProcessors = new OutputType(); |
53 |
|
|
54 |
2 |
public TemporalRule(TimeExpression first, TimeExpression second) { |
55 |
2 |
this.first = first; |
56 |
2 |
this.second = second; |
57 |
2 |
} |
58 |
|
|
59 |
|
public TemporalRule expectWithin(Time builder) { |
60 |
2 |
return expectWithin(builder.toMillis()); |
61 |
|
} |
62 |
|
|
63 |
|
public TemporalRule expectWithin(long millis) { |
64 |
2 |
expectedMillis = millis; |
65 |
2 |
return this; |
66 |
|
} |
67 |
|
|
68 |
|
public OutputType errorIfOver(Time builder) { |
69 |
2 |
return errorIfOver(builder.toMillis()); |
70 |
|
} |
71 |
|
|
72 |
|
public OutputType errorIfOver(long millis) { |
73 |
2 |
overdueMillis = millis; |
74 |
2 |
if (overdueProcessors == null) { |
75 |
0 |
overdueProcessors = new OutputType(); |
76 |
|
} |
77 |
2 |
return overdueProcessors; |
78 |
|
} |
79 |
|
|
80 |
|
public TimeExpression getFirst() { |
81 |
0 |
return first; |
82 |
|
} |
83 |
|
|
84 |
|
public TimeExpression getSecond() { |
85 |
2 |
return second; |
86 |
|
} |
87 |
|
|
88 |
|
public Processor getOverdueAction() throws Exception { |
89 |
4 |
if (overdueAction == null && overdueProcessors != null) { |
90 |
|
|
91 |
|
|
92 |
2 |
ArrayList<Route> list = new ArrayList<Route>(); |
93 |
2 |
RouteType route = new RouteType(); |
94 |
2 |
route.setCamelContext(first.getBuilder().getProcessBuilder().getContext()); |
95 |
2 |
RouteContext routeContext = new RouteContext(route, null, list); |
96 |
|
|
97 |
2 |
overdueAction = overdueProcessors.createOutputsProcessor(routeContext); |
98 |
|
} |
99 |
4 |
return overdueAction; |
100 |
|
} |
101 |
|
|
102 |
|
public void processExchange(Exchange exchange, ProcessInstance instance) { |
103 |
6 |
Date firstTime = first.evaluate(instance); |
104 |
6 |
if (firstTime == null) { |
105 |
|
|
106 |
2 |
return; |
107 |
|
} |
108 |
|
|
109 |
|
|
110 |
|
|
111 |
|
|
112 |
|
|
113 |
4 |
ActivityState secondState = second.getOrCreateActivityState(instance); |
114 |
4 |
if (expectedMillis > 0L) { |
115 |
4 |
Date expected = secondState.getTimeExpected(); |
116 |
4 |
if (expected == null) { |
117 |
4 |
expected = add(firstTime, expectedMillis); |
118 |
4 |
secondState.setTimeExpected(expected); |
119 |
|
} |
120 |
|
} |
121 |
4 |
if (overdueMillis > 0L) { |
122 |
4 |
Date overdue = secondState.getTimeOverdue(); |
123 |
4 |
if (overdue == null) { |
124 |
4 |
overdue = add(firstTime, overdueMillis); |
125 |
4 |
secondState.setTimeOverdue(overdue); |
126 |
|
} |
127 |
|
} |
128 |
4 |
} |
129 |
|
|
130 |
|
public void processExpired(ActivityState activityState) throws Exception { |
131 |
2 |
Processor processor = getOverdueAction(); |
132 |
2 |
if (processor != null) { |
133 |
2 |
Date now = new Date(); |
134 |
|
|
135 |
|
|
136 |
|
|
137 |
|
|
138 |
|
|
139 |
|
|
140 |
|
|
141 |
|
|
142 |
|
|
143 |
|
|
144 |
|
|
145 |
2 |
ActivityState secondState = activityState; |
146 |
2 |
Date overdue = secondState.getTimeOverdue(); |
147 |
2 |
if (now.compareTo(overdue) >= 0) { |
148 |
2 |
Exchange exchange = createExchange(); |
149 |
2 |
exchange.getIn().setBody(activityState); |
150 |
2 |
processor.process(exchange); |
151 |
2 |
} else { |
152 |
0 |
LOG.warn("Process has not actually expired; the time is: " + now + " but the overdue time is: " + overdue); |
153 |
|
} |
154 |
|
} |
155 |
2 |
} |
156 |
|
|
157 |
|
protected Exchange createExchange() { |
158 |
2 |
return new DefaultExchange(second.getBuilder().getProcessBuilder().getContext()); |
159 |
|
} |
160 |
|
|
161 |
|
|
162 |
|
|
163 |
|
|
164 |
|
|
165 |
|
|
166 |
|
|
167 |
|
|
168 |
|
protected Date add(Date date, long millis) { |
169 |
8 |
return new Date(date.getTime() + millis); |
170 |
|
} |
171 |
|
|
172 |
|
protected void doStart() throws Exception { |
173 |
2 |
startServices(getOverdueAction()); |
174 |
2 |
} |
175 |
|
|
176 |
|
protected void doStop() throws Exception { |
177 |
0 |
stopServices(getOverdueAction()); |
178 |
0 |
} |
179 |
|
} |