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Java > Open Source Codes > org > apache > avalon > logging > logkit > FormatterFactory


1 /*
2  * Copyright 2004 Apache Software Foundation
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
12  * implied.
13  *
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17
18 package org.apache.avalon.logging.logkit;
19
20 import org.apache.avalon.framework.configuration.Configuration;
21
22 import org.apache.log.format.Formatter;
23
24 /**
25  * Factory for Formatters.
26  * @author <a HREF="mailto:dev@avalon.apache.org">Avalon Development Team</a>
27  * @version $Revision: 1.2 $ $Date: 2004/02/24 21:55:39 $
28  */
29 public interface FormatterFactory
30 {
31     String JavaDoc DEFAULT_FORMAT =
32        "[%7.7{priority}] (%{category}): %{message}\\n%{throwable}";
33
34    /**
35     * Creation of a new formatter using a supplied configuration.
36     * @param config the formatter configuration
37     * @return the formatter instance
38     * @exception IllegalArgumentException if the formatter type is unknown
39     */
40     public Formatter createFormatter( final Configuration config )
41       throws IllegalArgumentException JavaDoc;
42
43    /**
44     * Creation of a new formatter.
45     * @param type the formatter type
46     * @param pattern the formatter pattern
47     * @return the formatter
48     */
49     Formatter createFormatter( String JavaDoc type, String JavaDoc pattern );
50 }
51
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