com.datadoghq.sketch.ddsketch

Class Serializer

java.lang.Object

com.datadoghq.sketch.ddsketch.Serializer

public final class Serializer
extends java.lang.Object

This class is used to perform protobuf serialization compliant with the official schema used to generate protobuf bindings (DDSketch.proto) but does not require the weight of the protobuf-java dependency nor the number of loaded classes required to use protobuf. As such, it can support low overhead use cases such as tracers.

Constructor Summary

Constructors

Constructor and Description
Serializer(int size)

Method Summary

Modifier and Type	Method and Description
static int	doubleFieldSize(int fieldIndex, double value)
static int	embeddedFieldSize(int fieldIndex, int size)
static int	embeddedSize(int size)
static int	fieldSize(int fieldIndex, int value)
java.nio.ByteBuffer	getBuffer()
static int	signedIntFieldSize(int fieldIndex, int value)
static int	sizeOfBin(int fieldPosition, int index, double count)
static int	sizeOfCompactDoubleArray(int fieldIndex, int size)
void	writeBin(int fieldPosition, int index, double count)
void	writeCompactArray(int fieldIndex, double[] array, int from, int length)
void	writeDouble(int fieldIndex, double value)
void	writeHeader(int fieldNumber, int length)
void	writeSignedInt32(int fieldIndex, int value)
void	writeUnsignedInt32(int fieldIndex, int value)

Methods inherited from class java.lang.Object

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

Constructor Detail

Serializer

public Serializer(int size)

Method Detail

getBuffer

public java.nio.ByteBuffer getBuffer()

writeHeader

public void writeHeader(int fieldNumber,
                        int length)

writeCompactArray

public void writeCompactArray(int fieldIndex,
                              double[] array,
                              int from,
                              int length)

writeDouble

public void writeDouble(int fieldIndex,
                        double value)

writeUnsignedInt32

public void writeUnsignedInt32(int fieldIndex,
                               int value)

writeSignedInt32

public void writeSignedInt32(int fieldIndex,
                             int value)

writeBin

public void writeBin(int fieldPosition,
                     int index,
                     double count)

embeddedSize

public static int embeddedSize(int size)

fieldSize

public static int fieldSize(int fieldIndex,
                            int value)

signedIntFieldSize

public static int signedIntFieldSize(int fieldIndex,
                                     int value)

doubleFieldSize

public static int doubleFieldSize(int fieldIndex,
                                  double value)

embeddedFieldSize

public static int embeddedFieldSize(int fieldIndex,
                                    int size)

sizeOfCompactDoubleArray

public static int sizeOfCompactDoubleArray(int fieldIndex,
                                           int size)

sizeOfBin

public static int sizeOfBin(int fieldPosition,
                            int index,
                            double count)