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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 implied.
14   * See the license for the specific language governing permissions and
15   * limitations under the license.
16   */
17  package org.apache.logging.log4j.message;
18  
19  /**
20   * Creates messages. Implementations can provide different message format syntaxes.
21   *
22   * @see ParameterizedMessageFactory
23   * @see StringFormatterMessageFactory
24   */
25  public interface MessageFactory {
26  
27      /**
28       * Creates a new message based on an Object.
29       *
30       * @param message
31       *            a message object
32       * @return a new message
33       */
34      Message newMessage(Object message);
35  
36      /**
37       * Creates a new message based on a String.
38       *
39       * @param message
40       *            a message String
41       * @return a new message
42       */
43      Message newMessage(String message);
44  
45      /**
46       * Creates a new parameterized message.
47       *
48       * @param message
49       *            a message template, the kind of message template depends on the implementation.
50       * @param params
51       *            the message parameters
52       * @return a new message
53       * @see ParameterizedMessageFactory
54       * @see StringFormatterMessageFactory
55       */
56      Message newMessage(String message, Object... params);
57  }