Class DataLogReader

java.lang.Object

org.wpilib.datalog.DataLogReader

All Implemented Interfaces:

Iterable<DataLogRecord>

public class DataLogReader
extends Object
implements Iterable<DataLogRecord>

Data log reader (reads logs written by the DataLog class).

Constructor Summary

Constructors

Constructor	Description
DataLogReader(String filename)	Constructs from a file.
DataLogReader(ByteBuffer buffer)	Constructs from the bytes between the byte buffer's current position and limit.

Method Summary

Modifier and Type	Method	Description
void	forEach(Consumer<? super DataLogRecord> action)
String	getExtraHeader()	Gets the extra header data.
short	getVersion()	Gets the data log version.
boolean	isValid()	Returns true if the data log is valid (e.g.
DataLogIterator	iterator()

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface Iterable

spliterator

Constructor Details

DataLogReader

public DataLogReader(ByteBuffer buffer)

Constructs from the bytes between the byte buffer's current position and limit. The reader does not modify the buffer's position, limit, or byte order.

Parameters:

buffer - byte buffer

DataLogReader

public DataLogReader(String filename)
              throws IOException

Constructs from a file.

Parameters:

filename - filename

Throws:

IOException - if unable to open/read file

Method Details

isValid

public boolean isValid()

Returns true if the data log is valid (e.g. has a valid header).

Returns:

True if valid, false otherwise

getVersion

public short getVersion()

Gets the data log version. Returns 0 if data log is invalid.

Returns:

Version number; most significant byte is major, least significant is minor (so version 1.0 will be 0x0100)

getExtraHeader

public String getExtraHeader()

Gets the extra header data.

Returns:

Extra header data

forEach

public void forEach(Consumer<? super DataLogRecord> action)

Specified by:

forEach in interface Iterable<DataLogRecord>

iterator

public DataLogIterator iterator()

Specified by:

iterator in interface Iterable<DataLogRecord>