/*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache license, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License. You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the license for the specific language governing permissions and
  * limitations under the license.
  */
  package org.apache.logging.log4j.core.appender;
  
  import java.nio.charset.Charset;
  
  import org.apache.logging.log4j.util.Chars;
  
  /**
   * Wrapper for messages that are formatted according to RFC 5425.
   */
  public class TlsSyslogFrame {
      private String message;
      private int messageLengthInBytes;
  
      public TlsSyslogFrame(final String message) {
          setMessage(message);
      }
  
      public String getMessage() {
          return this.message;
      }
  
      public void setMessage(final String message) {
          this.message = message;
          setLengthInBytes();
      }
  
      private void setLengthInBytes() {
          messageLengthInBytes = message.length();
      }
  
      public byte[] getBytes() {
          final String frame = toString();
          return frame.getBytes(Charset.defaultCharset());
      }
  
      @Override
      public String toString() {
          final String length = Integer.toString(messageLengthInBytes);
          return length + Chars.SPACE + message;
      }
  
      public boolean equals(final TlsSyslogFrame frame) {
          return isLengthEquals(frame) && isMessageEquals(frame);
      }
  
      private boolean isLengthEquals(final TlsSyslogFrame frame) {
          return this.messageLengthInBytes == frame.messageLengthInBytes;
      }
  
      private boolean isMessageEquals(final TlsSyslogFrame frame) {
          return this.message.equals(frame.message);
      }
  }