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Java > Open Source Codes > org > outerj > daisy > repository > commonimpl > Util


1 /*
2  * Copyright 2004 Outerthought bvba and Schaubroeck nv
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */

16 package org.outerj.daisy.repository.commonimpl;
17
18 import java.util.regex.Pattern JavaDoc;
19 import java.util.regex.Matcher JavaDoc;
20
21 public class Util {
22     private static Pattern JavaDoc namePattern = Pattern.compile("[a-zA-Z][a-zA-Z\\-_0-9]*");
23
24     /**
25      * Checks the conditions to which names of types should adhere.
26      */

27     public static void checkName(String JavaDoc name) {
28         if (name == null)
29             throw new IllegalArgumentException JavaDoc("Name should not be null");
30
31         if (name.length() == 0)
32             throw new IllegalArgumentException JavaDoc("Name should be at least one character long");
33
34         if (name.length() > 50)
35             throw new IllegalArgumentException JavaDoc("Name length should not exceed 50 characters.");
36
37         Matcher JavaDoc matcher = namePattern.matcher(name);
38         if (!matcher.matches())
39             throw new IllegalArgumentException JavaDoc("Name contains illegal characters.");
40     }
41 }
42
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