ByteArrayEncodedMessages.java

  1. /* Copyright 2002-2022 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. /** Encoded messages as a byte array.
  19.  * @author Luc Maisonobe
  20.  * @since 11.0
  21.  */
  22. public class ByteArrayEncodedMessages extends AbstractEncodedMessages {

  23.     /** Byte array containing the message. */
  24.     private final byte[] message;

  25.     /** Index of current byte in array. */
  26.     private int byteIndex;

  27.     /** Simple constructor.
  28.      * @param message byte array containing the message
  29.      */
  30.     public ByteArrayEncodedMessages(final byte[] message) {
  31.         this.message = message.clone();
  32.     }

  33.     /** {@inheritDoc} */
  34.     @Override
  35.     public void start() {
  36.         super.start();
  37.         this.byteIndex = -1;
  38.     }

  39.     /** {@inheritDoc} */
  40.     @Override
  41.     protected int fetchByte() {
  42.         if (++byteIndex >= message.length) {
  43.             return -1;
  44.         }
  45.         return message[byteIndex] & 0xFF;
  46.     }

  47. }