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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.core.appender;
18  
19  import java.nio.charset.Charset;
20  
21  /**
22   * Wrapper for messages that are formatted according to RFC 5425.
23   */
24  public class TLSSyslogFrame {
25      public static final char SPACE = ' ';
26  
27      private String message;
28      private int messageLengthInBytes;
29  
30      public TLSSyslogFrame(String message) {
31          setMessage(message);
32      }
33  
34      public String getMessage() {
35          return this.message;
36      }
37  
38      public void setMessage(String message) {
39          this.message = message;
40          setLengthInBytes();
41      }
42  
43      private void setLengthInBytes() {
44          messageLengthInBytes = message.length();
45      }
46  
47      public byte[] getBytes() {
48          String frame = toString();
49          return frame.getBytes(Charset.defaultCharset());
50      }
51  
52      @Override
53      public String toString() {
54          String length = Integer.toString(messageLengthInBytes);
55          return length + SPACE + message;
56      }
57  
58      @Override
59      public boolean equals(Object frame) {
60          return super.equals(frame);
61      }
62  
63      public boolean equals(TLSSyslogFrame frame) {
64          return isLengthEquals(frame) && isMessageEquals(frame);
65      }
66  
67      private boolean isLengthEquals(TLSSyslogFrame frame) {
68          return this.messageLengthInBytes == frame.messageLengthInBytes;
69      }
70  
71      private boolean isMessageEquals(TLSSyslogFrame frame) {
72          return this.message.equals(frame.message);
73      }
74  }