1   /* Copyright 2002-2025 CS GROUP
2    * Licensed to CS GROUP (CS) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * CS 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.orekit.gnss.metric.parser;
18  
19  /** Encoded message as a byte array.
20   * @author Luc Maisonobe
21   * @since 11.0
22   */
23  public class ByteArrayEncodedMessage extends AbstractEncodedMessage {
24  
25      /** Byte array containing the message. */
26      private final byte[] message;
27  
28      /** Index of current byte in array. */
29      private int byteIndex;
30  
31      /** Simple constructor.
32       * @param message byte array containing the message
33       */
34      public ByteArrayEncodedMessage(final byte[] message) {
35          this.message = message.clone();
36      }
37  
38      /** {@inheritDoc} */
39      @Override
40      public void start() {
41          super.start();
42          this.byteIndex = -1;
43      }
44  
45      /** {@inheritDoc} */
46      @Override
47      protected int fetchByte() {
48          if (++byteIndex >= message.length) {
49              return -1;
50          }
51          return message[byteIndex] & 0xFF;
52      }
53  
54  }