1 package org.seasar.cubby.validator.validators;
2
3 import java.util.regex.Matcher;
4 import java.util.regex.Pattern;
5
6 import org.apache.commons.fileupload.FileItem;
7 import org.seasar.cubby.validator.BaseValidator;
8 import org.seasar.cubby.validator.ValidationContext;
9
10
11
12
13
14
15 public class FileRegexpValidator extends BaseValidator {
16
17
18
19
20 private final Pattern pattern;
21
22
23
24
25
26 public FileRegexpValidator(final String regex) {
27 this(regex, "valid.fileRegexp");
28 }
29
30
31
32
33
34
35 public FileRegexpValidator(final String regex, final String messageKey) {
36 this.pattern = Pattern.compile(regex);
37 this.setMessageKey(messageKey);
38 }
39
40 public String validate(final ValidationContext ctx) {
41 final Object value = ctx.getValue();
42 if (value instanceof FileItem) {
43 Matcher matcher = pattern.matcher(((FileItem) value).getName());
44 if (matcher.matches()) {
45 return null;
46 }
47 return getMessage(getPropertyMessage(ctx.getName()));
48 }
49 return null;
50 }
51 }