org.opennms.netmgt.poller.nrpe
Class NrpePacket

java.lang.Object
  org.opennms.netmgt.poller.nrpe.NrpePacket

public class NrpePacket
extends Object

NrpePacket class.

Version:

$Id: $

Author:

ranger

Field Summary

static int	DEFAULT_PADDING Constant DEFAULT_PADDING=2
static String	HELLO_COMMAND Constant HELLO_COMMAND="_NRPE_CHECK"
static int	MAX_PACKETBUFFER_LENGTH Constant MAX_PACKETBUFFER_LENGTH=1024
static int	PACKET_SIZE Constant PACKET_SIZE=2 + // packet version, 16 bit integer 2 + // packet type, 16 bit integer 4 + // crc32, 32 bit unsigned integer 2 + // result code MAX_PACKETBUFFER_LENGTH
static short	PACKET_VERSION_2 Constant PACKET_VERSION_2=2
static short	QUERY_PACKET Constant QUERY_PACKET=1
static short	RESPONSE_PACKET Constant RESPONSE_PACKET=2

Constructor Summary

NrpePacket()
Constructor for NrpePacket.

NrpePacket(short type, short resultCode, String buffer)
Constructor for NrpePacket.

Method Summary

byte[]	buildPacket(int padding) buildPacket
byte[]	buildPacket(int padding, SecureRandom random) buildPacket
String	getBuffer() getBuffer
short	getResultCode() getResultCode
short	getType() getType
short	getVersion() getVersion
static int	positive(byte b) positive
static NrpePacket	receivePacket(InputStream i, int padding) receivePacket
void	setBuffer(String buffer) setBuffer
void	setResultCode(short resultCode) setResultCode
void	setType(short type) setType
void	setVersion(short version) setVersion
String	toString() toString

Methods inherited from class java.lang.Object

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

Field Detail

QUERY_PACKET

public static final short QUERY_PACKET

Constant QUERY_PACKET=1

See Also:

Constant Field Values

RESPONSE_PACKET

public static final short RESPONSE_PACKET

Constant RESPONSE_PACKET=2

See Also:

Constant Field Values

HELLO_COMMAND

public static final String HELLO_COMMAND

Constant HELLO_COMMAND="_NRPE_CHECK"

See Also:

Constant Field Values

PACKET_VERSION_2

public static final short PACKET_VERSION_2

Constant PACKET_VERSION_2=2

See Also:

Constant Field Values

MAX_PACKETBUFFER_LENGTH

public static final int MAX_PACKETBUFFER_LENGTH

Constant MAX_PACKETBUFFER_LENGTH=1024

See Also:

Constant Field Values

PACKET_SIZE

public static final int PACKET_SIZE

Constant PACKET_SIZE=2 + // packet version, 16 bit integer 2 + // packet type, 16 bit integer 4 + // crc32, 32 bit unsigned integer 2 + // result code MAX_PACKETBUFFER_LENGTH

See Also:

Constant Field Values

DEFAULT_PADDING

public static final int DEFAULT_PADDING

Constant DEFAULT_PADDING=2

See Also:

Constant Field Values

Constructor Detail

NrpePacket

public NrpePacket()

Constructor for NrpePacket.

NrpePacket

public NrpePacket(short type,
                  short resultCode,
                  String buffer)

Constructor for NrpePacket.

Parameters:

type - a short.

resultCode - a short.

buffer - a String object.

Method Detail

getVersion

public short getVersion()

getVersion

Returns:

a short.

setVersion

public void setVersion(short version)

setVersion

Parameters:

version - a short.

getType

public short getType()

getType

Returns:

a short.

setType

public void setType(short type)

setType

Parameters:

type - a short.

getResultCode

public short getResultCode()

getResultCode

Returns:

a short.

setResultCode

public void setResultCode(short resultCode)

setResultCode

Parameters:

resultCode - a short.

getBuffer

public String getBuffer()

getBuffer

Returns:

a String object.

setBuffer

public void setBuffer(String buffer)

setBuffer

Parameters:

buffer - a String object.

receivePacket

public static NrpePacket receivePacket(InputStream i,
                                       int padding)
                                throws NrpeException,
                                       IOException

receivePacket

Parameters:

i - a InputStream object.

padding - a int.

Returns:

a NrpePacket object.

Throws:

NrpeException - if any.

IOException - if any.

positive

public static int positive(byte b)

positive

Parameters:

b - a byte.

Returns:

a int.

toString

public String toString()

toString

Overrides:

toString in class Object

Returns:

a String object.

buildPacket

public byte[] buildPacket(int padding)

buildPacket

Parameters:

padding - a int.

Returns:

an array of byte.

buildPacket

public byte[] buildPacket(int padding,
                          SecureRandom random)

buildPacket

Parameters:

padding - a int.

random - a SecureRandom object.

Returns:

an array of byte.