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345738f7de
Rename LegallyIdentifiableNode to NodeInfo, to represent that legally identifiable is not a single concept. Rename NetworkMapService to NetworkMapCache, as the API exposed is suited to a local cache, not a remote service.
91 lines
3.7 KiB
Kotlin
91 lines
3.7 KiB
Kotlin
/*
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* Copyright 2015 Distributed Ledger Group LLC. Distributed as Licensed Company IP to DLG Group Members
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* pursuant to the August 7, 2015 Advisory Services Agreement and subject to the Company IP License terms
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* set forth therein.
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*
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* All other rights reserved.
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*/
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package demos
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import contracts.Cash
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import core.*
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import core.node.Node
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import core.node.NodeConfiguration
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import core.node.services.ArtemisMessagingService
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import core.node.services.NodeInfo
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import core.node.services.NodeInterestRates
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import core.serialization.deserialize
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import core.utilities.ANSIProgressRenderer
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import core.utilities.BriefLogFormatter
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import core.utilities.Emoji
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import joptsimple.OptionParser
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import protocols.RatesFixProtocol
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import java.math.BigDecimal
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import java.nio.file.Files
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import java.nio.file.Paths
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import kotlin.system.exitProcess
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/**
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* Creates a dummy transaction that requires a rate fix within a certain range, and gets it signed by an oracle
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* service.
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*/
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fun main(args: Array<String>) {
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val parser = OptionParser()
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val networkAddressArg = parser.accepts("network-address").withRequiredArg().required()
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val dirArg = parser.accepts("directory").withRequiredArg().defaultsTo("rate-fix-demo-data")
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val oracleAddrArg = parser.accepts("oracle").withRequiredArg().required()
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val oracleIdentityArg = parser.accepts("oracle-identity-file").withRequiredArg().required()
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val fixOfArg = parser.accepts("fix-of").withRequiredArg().defaultsTo("LIBOR 2016-03-16 1M")
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val expectedRateArg = parser.accepts("expected-rate").withRequiredArg().defaultsTo("0.67")
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val rateToleranceArg = parser.accepts("rate-tolerance").withRequiredArg().defaultsTo("0.1")
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val options = try {
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parser.parse(*args)
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} catch (e: Exception) {
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println(e.message)
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exitProcess(1)
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}
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// Suppress the Artemis MQ noise, and activate the demo logging.
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BriefLogFormatter.initVerbose("+demo.ratefix", "-org.apache.activemq")
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// TODO: Move this into the AbstractNode class.
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val dir = Paths.get(options.valueOf(dirArg))
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if (!Files.exists(dir)) {
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Files.createDirectory(dir)
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}
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// Load oracle stuff (in lieu of having a network map service)
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val oracleAddr = ArtemisMessagingService.makeRecipient(options.valueOf(oracleAddrArg))
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val oracleIdentity = Files.readAllBytes(Paths.get(options.valueOf(oracleIdentityArg))).deserialize<Party>(includeClassName = true)
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val oracleNode = NodeInfo(oracleAddr, oracleIdentity)
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val fixOf: FixOf = NodeInterestRates.parseFixOf(options.valueOf(fixOfArg))
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val expectedRate = BigDecimal(options.valueOf(expectedRateArg))
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val rateTolerance = BigDecimal(options.valueOf(rateToleranceArg))
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// Bring up node.
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val myNetAddr = ArtemisMessagingService.toHostAndPort(options.valueOf(networkAddressArg))
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val config = object : NodeConfiguration {
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override val myLegalName: String = "Rate fix demo node"
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override val exportJMXto: String = "http"
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override val nearestCity: String = "Atlantis"
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}
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val node = logElapsedTime("Node startup") { Node(dir, myNetAddr, config, null).start() }
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// Make a garbage transaction that includes a rate fix.
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val tx = TransactionBuilder()
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tx.addOutputState(Cash.State(node.storage.myLegalIdentity.ref(1), 1500.DOLLARS, node.keyManagement.freshKey().public))
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val protocol = RatesFixProtocol(tx, oracleNode, fixOf, expectedRate, rateTolerance)
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ANSIProgressRenderer.progressTracker = protocol.progressTracker
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node.smm.add("demo.ratefix", protocol).get()
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node.stop()
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// Show the user the output.
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println("Got rate fix")
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println()
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print(Emoji.renderIfSupported(tx.toWireTransaction()))
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println(tx.toSignedTransaction().sigs)
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} |