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Java > Open Source Codes > org > apache > avalon > excalibur > logger > util > LoggerUtil


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
14  * implied.
15  *
16  * See the License for the specific language governing permissions and
17  * limitations under the License.
18  */
19 package org.apache.avalon.excalibur.logger.util;
20
21 /**
22  * This class implements utility methods for building LoggerManager-s.
23  *
24  * @author <a HREF="mailto:dev@avalon.apache.org">Avalon Development Team</a>
25  * @version CVS $Revision: 1.3 $ $Date: 2004/03/10 13:54:51 $
26  * @since 4.0
27  */
28 public class LoggerUtil
29 {
30     /**
31      * Generates a full category name given a prefix and category. Either may be
32      * null.
33      *
34      * @param prefix Prefix or parent category.
35      * @param category Child category name.
36      */
37     public static String JavaDoc getFullCategoryName( final String JavaDoc prefix, final String JavaDoc category )
38     {
39         if( ( null == prefix ) || ( prefix.length() == 0 ) )
40         {
41             if( category == null )
42             {
43                 return "";
44             }
45             else
46             {
47                 return category;
48             }
49         }
50         else
51         {
52             if( ( null == category ) || ( category.length() == 0 ) )
53             {
54                 return prefix;
55             }
56             else
57             {
58                 return prefix + org.apache.log.Logger.CATEGORY_SEPARATOR + category;
59             }
60         }
61     }
62 }
63
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