AbstractEncodedMessage (OREKIT 12.2.1 API)

java.lang.Object
- org.orekit.gnss.metric.parser.AbstractEncodedMessage

All Implemented Interfaces:

EncodedMessage

Direct Known Subclasses:

ByteArrayEncodedMessage, HexadecimalSequenceEncodedMessage, InputStreamEncodedMessage, StreamMonitor
```
public abstract class AbstractEncodedMessage
extends Object
implements EncodedMessage
```
Encoded messages as a sequence of bytes.
Note that only full bytes are supported. This means that for example the 300 bits message from GPS sub-frames must be completed with 4 zero bits to reach 304 bits = 38 bytes, even if only the first 300 bits will be decoded and the 4 extra bits in the last byte will be ignored.

Since:

11.0

Author:

Luc Maisonobe

Constructor Summary

Constructors
Constructor Description

AbstractEncodedMessage()
Empty constructor.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`long`	`extractBits(int n)`	Extract the next n bits from the encoded message.
`protected abstract int`	`fetchByte()`	Fetch the next byte from the message.
`void`	`start()`	Start message extraction.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AbstractEncodedMessage
```
public AbstractEncodedMessage()
```
    Empty constructor.
    This constructor is not strictly necessary, but it prevents spurious javadoc warnings with JDK 18 and later.
    
    Since:
    
    12.0
- Method Detail
  - start
```
public void start()
```
    Start message extraction.
    
    Specified by:
    
    start in interface EncodedMessage
  - fetchByte
```
protected abstract int fetchByte()
```
    Fetch the next byte from the message.
    
    Returns:
    
    next byte from the message, as a primitive integer, or -1 if end of data has been reached
  - extractBits
```
public long extractBits(int n)
```
    Extract the next n bits from the encoded message.
    
    Specified by:
    
    extractBits in interface EncodedMessage
    
    Parameters:
    
    n - number of bits to extract (cannot exceed 32 bits)
    
    Returns:
    
    bits packed as the LSB of a 64 bits primitive long