Package org.bitcoinj.core

Class Ping

java.lang.Object

org.bitcoinj.core.BaseMessage

org.bitcoinj.core.Ping

All Implemented Interfaces:

Message

public class Ping
extends BaseMessage

See BIP31 for details.

Instances of this class are immutable.

Field Summary

Fields inherited from interface org.bitcoinj.core.Message

MAX_SIZE

Method Summary

Modifier and Type	Method	Description
void	bitcoinSerializeToStream(OutputStream stream)	Serializes this message to the provided stream.
boolean	hasNonce()	Deprecated. returns true
long	nonce()
static Ping	of(long nonce)	Create a ping with a nonce value.
Pong	pong()	Create a Pong reply to this ping.
static Ping	random()	Create a ping with a random nonce value.
static Ping	read(ByteBuffer payload)	Deserialize this message from a given payload.

Methods inherited from class org.bitcoinj.core.BaseMessage

messageSize, serialize

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.bitcoinj.core.Message

bitcoinSerialize, getMessageSize, unsafeBitcoinSerialize

Method Details

read

public static Ping read(ByteBuffer payload)
                 throws BufferUnderflowException,
ProtocolException

Deserialize this message from a given payload.

Parameters:

payload - payload to deserialize from

Returns:

read message

Throws:

BufferUnderflowException - if the read message extends beyond the remaining bytes of the payload

ProtocolException

of

public static Ping of(long nonce)

Create a ping with a nonce value. Only use this if the remote node has a protocol version greater than 60000

Parameters:

nonce - nonce value

Returns:

ping message

random

public static Ping random()

Create a ping with a random nonce value. Only use this if the remote node has a protocol version greater than 60000

Returns:

ping message

bitcoinSerializeToStream

public void bitcoinSerializeToStream(OutputStream stream)
                              throws IOException

Description copied from class: BaseMessage

Serializes this message to the provided stream. If you just want the raw bytes use BaseMessage.serialize().

Specified by:

bitcoinSerializeToStream in class BaseMessage

Throws:

IOException

hasNonce

@Deprecated
public boolean hasNonce()

Deprecated.

returns true

nonce

public long nonce()

pong

public Pong pong()

Create a Pong reply to this ping.

Returns:

pong message