|
1 package jfun.yan.xml;
2
3 final class Filter {
4 private final String  [] includes;
5 private final String [] excludes;
6
7 Filter(String [] includes, String [] excludes) {
8 this.excludes = excludes;
9 this.includes = includes;
10 }
11
12 String [] getExcludes() {
13 return excludes;
14 }
15
16 String [] getIncludes() {
17 return includes;
18 }
19
20 StringPredicate getPredicate(){
21 if(excludes==null){
22 return StringPredicates.never();
23 }
24 else{
25 final StringPredicate ip = toPredicate(includes);
26 final StringPredicate ep = toPredicate(excludes);
27 return new StringPredicate(){
28 public boolean isString(String s){
29 return !ep.isString(s) && ip.isString(s);
30 }
31 public String toString(){
32 return "!"+ep+"&&"+ip;
33 }
34 };
35 }
36 }
37 static StringPredicate toPredicate(String [] names){
38 if(names==null)
39 return StringPredicates.always();
40 final StringPredicate[] preds = new StringPredicate[names.length];
41 for(int i=0; i<names.length; i++){
42 preds[i] = toPredicate(names[i]);
43 }
44 return StringPredicates.or(preds);
45 }
46 static StringPredicate toPredicate(String name){
47 if(name==null)
48 return StringPredicates.always();
49 if(Constants.WILDCARD.equals(name)){
50 return StringPredicates.always();
51 }
52 if(name.endsWith(Constants.WILDCARD)){
53 return StringPredicates.startsWith(name.substring(0, name.length()-1));
54 }
55 else{
56 return StringPredicates.equals(name);
57 }
58 }
59 }
60 |
Popular Tags |
Java API By Example, From Geeks To Geeks.