1 | |
|
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
|
8 | |
|
9 | |
|
10 | |
|
11 | |
package org.mule.util.expression; |
12 | |
|
13 | |
import org.mule.api.transport.MessageAdapter; |
14 | |
import org.mule.config.i18n.CoreMessages; |
15 | |
|
16 | |
import java.util.ArrayList; |
17 | |
import java.util.List; |
18 | |
import java.util.StringTokenizer; |
19 | |
|
20 | |
|
21 | |
|
22 | |
|
23 | |
|
24 | |
|
25 | |
|
26 | |
|
27 | |
|
28 | |
|
29 | 1148 | public class MessageAttachmentsListExpressionEvaluator implements ExpressionEvaluator |
30 | |
{ |
31 | |
public static final String NAME = "attachments-list"; |
32 | |
public static final String DELIM = ","; |
33 | |
|
34 | |
public Object evaluate(String expression, Object message) |
35 | |
{ |
36 | 12 | boolean required = false; |
37 | |
|
38 | |
|
39 | 12 | if(expression.endsWith("required")) |
40 | |
{ |
41 | 0 | required = true; |
42 | 0 | expression = expression.substring(0, expression.length() - 8); |
43 | |
} |
44 | |
|
45 | 12 | if (message instanceof MessageAdapter) |
46 | |
{ |
47 | |
|
48 | 8 | StringTokenizer tokenizer = new StringTokenizer(expression, DELIM); |
49 | 8 | List result = new ArrayList(tokenizer.countTokens()); |
50 | 20 | while(tokenizer.hasMoreTokens()) |
51 | |
{ |
52 | 12 | String s = tokenizer.nextToken(); |
53 | 12 | s = s.trim(); |
54 | 12 | Object val = ((MessageAdapter) message).getAttachment(s); |
55 | 12 | if (val != null) |
56 | |
{ |
57 | 8 | result.add(val); |
58 | |
} |
59 | 4 | else if(required) |
60 | |
{ |
61 | 0 | throw new ExpressionRuntimeException(CoreMessages.expressionEvaluatorReturnedNull(NAME, expression)); |
62 | |
} |
63 | 12 | } |
64 | 8 | if(result.size()==0) |
65 | |
{ |
66 | 4 | return null; |
67 | |
} |
68 | |
else |
69 | |
{ |
70 | 4 | return result; |
71 | |
} |
72 | |
} |
73 | 4 | return null; |
74 | |
} |
75 | |
|
76 | |
|
77 | |
public String getName() |
78 | |
{ |
79 | 1146 | return NAME; |
80 | |
} |
81 | |
|
82 | |
|
83 | |
public void setName(String name) |
84 | |
{ |
85 | 0 | throw new UnsupportedOperationException("setName"); |
86 | |
} |
87 | |
} |