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1
14
15 package com.sun.facelets.tag.jstl.fn;
16
17 import java.lang.reflect.Array  ;
18 import java.util.Collection ;
19 import java.util.Map ;
20
21
27 public final class JstlFunction {
28
29 private JstlFunction() {
30 }
31
32 public static boolean contains(String name, String searchString) {
33 if (name == null || searchString == null) {
34 return false;
35 }
36
37 return -1 != name.indexOf(searchString);
38 }
39
40 public static boolean containsIgnoreCase(String name, String searchString) {
41 if (name == null || searchString == null) {
42 return false;
43 }
44 return -1 != name.toUpperCase().indexOf(searchString.toUpperCase());
45 }
46
47 public static boolean endsWith(String name, String searchString) {
48 if (name == null || searchString == null) {
49 return false;
50 }
51 return name.endsWith(searchString);
52 }
53
54 public static String escapeXml(String value) {
55 if (value == null) {
56 return null;
57 }
58 return value.replaceAll("<", "<");
59 }
60
61 public static int indexOf(String name, String searchString) {
62 if (name == null || searchString == null) {
63 return -1;
64 }
65 return name.indexOf(searchString);
66 }
67
68 public static String join(String [] a, String delim) {
69 if (a == null || delim == null) {
70 return null;
71 }
72 if (a.length == 0) {
73 return "";
74 }
75 StringBuffer sb = new StringBuffer (a.length
76 * (a[0].length() + delim.length()));
77 for (int i = 0; i < a.length; i++) {
78 sb.append(a[i]).append(delim);
79 }
80 return sb.toString();
81 }
82
83 public static int length(Object obj) {
84 if (obj == null) {
85 return 0;
86 }
87 if (obj instanceof Collection ) {
88 return ((Collection ) obj).size();
89 }
90 if (obj.getClass().isArray()) {
91 return Array.getLength(obj);
92 }
93 if (obj instanceof String ) {
94 return ((String ) obj).length();
95 }
96 if (obj instanceof Map ) {
97 return ((Map ) obj).size();
98 }
99 throw new IllegalArgumentException ("Object type not supported: "
100 + obj.getClass().getName());
101 }
102
103 public static String replace(String value, String a, String b) {
104 if (value == null || a == null || b == null) {
105 return null;
106 }
107 return value.replaceAll(a, b);
108 }
109
110 public static String [] split(String value, String d) {
111 if (value == null || d == null) {
112 return null;
113 }
114 return value.split(d);
115 }
116
117 public static boolean startsWith(String value, String p) {
118 if (value == null || p == null) {
119 return false;
120 }
121 return value.startsWith(p);
122 }
123
124 public static String substring(String v, int s, int e) {
125 if (v == null) {
126 return null;
127 }
128 return v.substring(s, e);
129 }
130
131 public static String substringAfter(String v, String p) {
132 if (v == null) {
133 return null;
134 }
135 int i = v.indexOf(p);
136 if (i >= 0) {
137 return v.substring(i+p.length());
138 }
139 return null;
140 }
141
142 public static String substringBefore(String v, String s) {
143 if (v == null) {
144 return null;
145 }
146 int i = v.indexOf(s);
147 if (i > 0) {
148 return v.substring(0, i-1);
149 }
150 return null;
151 }
152
153 public static String toLowerCase(String v) {
154 if (v == null) {
155 return null;
156 }
157 return v.toLowerCase();
158 }
159
160 public static String toUpperCase(String v) {
161 if (v == null) {
162 return null;
163 }
164 return v.toUpperCase();
165 }
166
167 public static String trim(String v) {
168 if (v == null) {
169 return null;
170 }
171 return v.trim();
172 }
173
174 }
175 |
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