org.lightningj.paywall.lightninghandler.lnd

Class LNDHelper

java.lang.Object

org.lightningj.paywall.lightninghandler.lnd.LNDHelper

public class LNDHelper
extends java.lang.Object

Helper class with methods for converting between LND wrapper objects and paywall-core objects. Created by philip on 2018-11-25.

Constructor Summary

Constructors

Constructor and Description
LNDHelper(org.lightningj.lnd.wrapper.message.GetInfoResponse infoResponse) Constructor of LND helper methods parsing info from LND node.
LNDHelper(java.lang.String supportedCurrency) Default constructor when supportedCurrency comes from configuration

Method Summary

Modifier and Type	Method and Description
protected void	checkCryptoAmount(CryptoAmount amount) Method that the specified crypto amount is supported by LND.
Invoice	convert(NodeInfo nodeInfo, org.lightningj.lnd.wrapper.message.Invoice lndInvoice) Help method to convert a LND Invoice to a Invoice value object.
org.lightningj.lnd.wrapper.message.Invoice	genLNDInvoice(PreImageData preImageData, ConvertedOrder paymentData) Method to generate an LND Invoice from a PreImageData and ConvertedOrder
NodeInfo	parseNodeInfo(org.lightningj.lnd.wrapper.message.GetInfoResponse infoResponse) Method to parse a GetInfoResponse into a NodeInfo value object.

Methods inherited from class java.lang.Object

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

Constructor Detail

LNDHelper

public LNDHelper(org.lightningj.lnd.wrapper.message.GetInfoResponse infoResponse)
          throws InternalErrorException

Constructor of LND helper methods parsing info from LND node.

Parameters:

infoResponse - the GetInfoResponse from the LND node.

Throws:

InternalErrorException - if no supported currency was given.

LNDHelper

public LNDHelper(java.lang.String supportedCurrency)

Default constructor when supportedCurrency comes from configuration

Parameters:

supportedCurrency - the configured currency code.

Method Detail

convert

public Invoice convert(NodeInfo nodeInfo,
                       org.lightningj.lnd.wrapper.message.Invoice lndInvoice)

Help method to convert a LND Invoice to a Invoice value object.

Parameters:

nodeInfo - the related node info from LND node.

lndInvoice - the LND invoice to convert.

Returns:

the converted Invoice.

genLNDInvoice

public org.lightningj.lnd.wrapper.message.Invoice genLNDInvoice(PreImageData preImageData,
                                                                ConvertedOrder paymentData)
                                                         throws InternalErrorException

Method to generate an LND Invoice from a PreImageData and ConvertedOrder

Parameters:

preImageData - the preImageData value object to the invoice preimage and hash from.

paymentData - the payment data to generate invoice value and expire date from.

Returns:

a newly generate LND Invoice object that can be used with lnd api to add.

Throws:

InternalErrorException - if specified crypto amount is unsupported by LND implementation.

checkCryptoAmount

protected void checkCryptoAmount(CryptoAmount amount)
                          throws InternalErrorException

Method that the specified crypto amount is supported by LND.

Parameters:

amount - the crypto amount to used in LND invoice

Throws:

InternalErrorException - if crypto amount contained invalid values.

parseNodeInfo

public NodeInfo parseNodeInfo(org.lightningj.lnd.wrapper.message.GetInfoResponse infoResponse)
                       throws InternalErrorException

Method to parse a GetInfoResponse into a NodeInfo value object.

Parameters:

infoResponse - the GetInfoResponse from LND node.

Returns:

a parsed NodeInfo value object.

Throws:

InternalErrorException - if problem occurred parsing the LND node data.