Push internal subsystems into node

contracts/src/main/kotlin/protocols/TwoPartyTradeProtocol.kt

@@ -1,7 +1,6 @@
 package protocols
 
 import co.paralleluniverse.fibers.Suspendable
-import com.google.common.util.concurrent.ListenableFuture
 import contracts.Cash
 import contracts.sumCashBy
 import core.contracts.*
@@ -9,7 +8,6 @@ import core.crypto.DigitalSignature
 import core.crypto.Party
 import core.crypto.signWithECDSA
 import core.messaging.SingleMessageRecipient
-import core.messaging.StateMachineManager
 import core.node.NodeInfo
 import core.protocols.ProtocolLogic
 import core.random63BitValue
@@ -46,20 +44,6 @@ import java.security.SignatureException
 object TwoPartyTradeProtocol {
     val TRADE_TOPIC = "platform.trade"
 
-    fun runSeller(smm: StateMachineManager, notary: NodeInfo,
-                  otherSide: SingleMessageRecipient, assetToSell: StateAndRef<OwnableState>, price: Amount,
-                  myKeyPair: KeyPair, buyerSessionID: Long): ListenableFuture<SignedTransaction> {
-        val seller = Seller(otherSide, notary, assetToSell, price, myKeyPair, buyerSessionID)
-        return smm.add("${TRADE_TOPIC}.seller", seller)
-    }
-
-    fun runBuyer(smm: StateMachineManager, notaryNode: NodeInfo,
-                 otherSide: SingleMessageRecipient, acceptablePrice: Amount, typeToBuy: Class<out OwnableState>,
-                 sessionID: Long): ListenableFuture<SignedTransaction> {
-        val buyer = Buyer(otherSide, notaryNode.identity, acceptablePrice, typeToBuy, sessionID)
-        return smm.add("$TRADE_TOPIC.buyer", buyer)
-    }
-
     class UnacceptablePriceException(val givenPrice: Amount) : Exception()
     class AssetMismatchException(val expectedTypeName: String, val typeName: String) : Exception() {
         override fun toString() = "The submitted asset didn't match the expected type: $expectedTypeName vs $typeName"

core/src/main/kotlin/core/node/subsystems/Services.kt

@@ -1,12 +1,10 @@
 package core.node.subsystems
 
 import com.codahale.metrics.MetricRegistry
-import core.*
 import core.contracts.*
 import core.crypto.Party
 import core.crypto.SecureHash
 import core.node.services.AttachmentStorage
-import core.node.storage.CheckpointStorage
 import java.security.KeyPair
 import java.security.PrivateKey
 import java.security.PublicKey
@@ -128,8 +126,6 @@ interface StorageService {
      */
     val validatedTransactions: MutableMap<SecureHash, SignedTransaction>
 
-    val checkpointStorage: CheckpointStorage
-
     /** Provides access to storage of arbitrary JAR files (which may contain only data, no code). */
     val attachments: AttachmentStorage
 

node/src/main/kotlin/core/messaging/StateMachineManager.kt

@@ -9,6 +9,7 @@ import com.google.common.base.Throwables
 import com.google.common.util.concurrent.ListenableFuture
 import core.node.ServiceHub
 import core.node.storage.Checkpoint
+import core.node.storage.CheckpointStorage
 import core.protocols.ProtocolLogic
 import core.protocols.ProtocolStateMachine
 import core.protocols.ProtocolStateMachineImpl
@@ -53,14 +54,13 @@ import javax.annotation.concurrent.ThreadSafe
  * TODO: Implement stub/skel classes that provide a basic RPC framework on top of this.
  */
 @ThreadSafe
-class StateMachineManager(val serviceHub: ServiceHub, val executor: AffinityExecutor) {
+class StateMachineManager(val serviceHub: ServiceHub, val checkpointStorage: CheckpointStorage, val executor: AffinityExecutor) {
     inner class FiberScheduler : FiberExecutorScheduler("Same thread scheduler", executor)
 
     val scheduler = FiberScheduler()
 
     // This map is backed by a database and will be used to store serialised state machines to disk, so we can resurrect
     // them across node restarts.
-    private val checkpointStorage = serviceHub.storageService.checkpointStorage
     // A list of all the state machines being managed by this class. We expose snapshots of it via the stateMachines
     // property.
     private val stateMachines = synchronizedMap(HashMap<ProtocolStateMachineImpl<*>, Checkpoint>())

node/src/main/kotlin/core/node/AbstractNode.kt

@@ -78,6 +78,7 @@ abstract class AbstractNode(val dir: Path, val configuration: NodeConfiguration,
     open fun findMyLocation(): PhysicalLocation? = CityDatabase[configuration.nearestCity]
 
     lateinit var storage: StorageService
+    lateinit var checkpointStorage: CheckpointStorage
     lateinit var smm: StateMachineManager
     lateinit var wallet: WalletService
     lateinit var keyManagement: E2ETestKeyManagementService
@@ -99,9 +100,11 @@ abstract class AbstractNode(val dir: Path, val configuration: NodeConfiguration,
         require(!started) { "Node has already been started" }
         log.info("Node starting up ...")
 
-        storage = initialiseStorageService(dir)
+        val storageServices = initialiseStorageService(dir)
+        storage = storageServices.first
+        checkpointStorage = storageServices.second
         net = makeMessagingService()
-        smm = StateMachineManager(services, serverThread)
+        smm = StateMachineManager(services, checkpointStorage, serverThread)
         wallet = NodeWalletService(services)
         keyManagement = E2ETestKeyManagementService()
         makeInterestRatesOracleService()
@@ -216,16 +219,16 @@ abstract class AbstractNode(val dir: Path, val configuration: NodeConfiguration,
 
     protected abstract fun startMessagingService()
 
-    protected open fun initialiseStorageService(dir: Path): StorageService {
+    protected open fun initialiseStorageService(dir: Path): Pair<StorageService,CheckpointStorage> {
         val attachments = makeAttachmentStorage(dir)
         val checkpointStorage = PerFileCheckpointStorage(dir.resolve("checkpoints"))
         _servicesThatAcceptUploads += attachments
         val (identity, keypair) = obtainKeyPair(dir)
-        return constructStorageService(attachments, checkpointStorage, keypair, identity)
+        return Pair(constructStorageService(attachments, keypair, identity),checkpointStorage)
     }
 
-    protected open fun constructStorageService(attachments: NodeAttachmentService, checkpointStorage: CheckpointStorage, keypair: KeyPair, identity: Party) =
-            StorageServiceImpl(attachments, checkpointStorage, keypair, identity)
+    protected open fun constructStorageService(attachments: NodeAttachmentService, keypair: KeyPair, identity: Party) =
+            StorageServiceImpl(attachments, keypair, identity)
 
     private fun obtainKeyPair(dir: Path): Pair<Party, KeyPair> {
         // Load the private identity key, creating it if necessary. The identity key is a long term well known key that

node/src/main/kotlin/core/node/subsystems/StorageServiceImpl.kt

@@ -11,7 +11,6 @@ import java.security.KeyPair
 import java.util.*
 
 open class StorageServiceImpl(override val attachments: AttachmentStorage,
-                              override val checkpointStorage: CheckpointStorage,
                               override val myLegalIdentityKey: KeyPair,
                               override val myLegalIdentity: Party = Party("Unit test party", myLegalIdentityKey.public),
                               // This parameter is for unit tests that want to observe operation details.

node/src/test/kotlin/core/MockServices.kt

@@ -91,7 +91,7 @@ class MockCheckpointStorage : CheckpointStorage {
 
 
 @ThreadSafe
-class MockStorageService : StorageServiceImpl(MockAttachmentStorage(), MockCheckpointStorage(), generateKeyPair())
+class MockStorageService : StorageServiceImpl(MockAttachmentStorage(), generateKeyPair())
 
 class MockServices(
         customWallet: WalletService? = null,

node/src/test/kotlin/core/messaging/TwoPartyTradeProtocolTests.kt

@@ -1,21 +1,23 @@
 package core.messaging
 
+import com.google.common.util.concurrent.ListenableFuture
 import contracts.Cash
 import contracts.CommercialPaper
-import core.*
 import core.contracts.*
 import core.crypto.Party
 import core.crypto.SecureHash
+import core.days
 import core.node.NodeConfiguration
 import core.node.NodeInfo
 import core.node.ServiceHub
 import core.node.services.NodeAttachmentService
 import core.node.services.ServiceType
-import core.node.storage.CheckpointStorage
 import core.node.subsystems.NodeWalletService
 import core.node.subsystems.StorageServiceImpl
 import core.node.subsystems.Wallet
 import core.node.subsystems.WalletImpl
+import core.random63BitValue
+import core.seconds
 import core.testing.InMemoryMessagingNetwork
 import core.testing.MockNetwork
 import core.testutils.*
@@ -79,7 +81,7 @@ class TwoPartyTradeProtocolTests {
 
             val buyerSessionID = random63BitValue()
 
-            val aliceResult = TwoPartyTradeProtocol.runSeller(
+            val aliceResult = runSeller(
                     aliceNode.smm,
                     notaryNode.info,
                     bobNode.net.myAddress,
@@ -88,7 +90,7 @@ class TwoPartyTradeProtocolTests {
                     ALICE_KEY,
                     buyerSessionID
             )
-            val bobResult = TwoPartyTradeProtocol.runBuyer(
+            val bobResult = runBuyer(
                     bobNode.smm,
                     notaryNode.info,
                     aliceNode.net.myAddress,
@@ -104,8 +106,8 @@ class TwoPartyTradeProtocolTests {
             aliceNode.stop()
             bobNode.stop()
 
-            assertThat(aliceNode.storage.checkpointStorage.checkpoints).isEmpty()
-            assertThat(bobNode.storage.checkpointStorage.checkpoints).isEmpty()
+            assertThat(aliceNode.checkpointStorage.checkpoints).isEmpty()
+            assertThat(bobNode.checkpointStorage.checkpoints).isEmpty()
         }
     }
 
@@ -129,7 +131,7 @@ class TwoPartyTradeProtocolTests {
 
             val buyerSessionID = random63BitValue()
 
-            val aliceFuture = TwoPartyTradeProtocol.runSeller(
+            val aliceFuture = runSeller(
                     aliceNode.smm,
                     notaryNode.info,
                     bobAddr,
@@ -138,7 +140,7 @@ class TwoPartyTradeProtocolTests {
                     ALICE_KEY,
                     buyerSessionID
             )
-            TwoPartyTradeProtocol.runBuyer(
+            runBuyer(
                     bobNode.smm,
                     notaryNode.info,
                     aliceAddr,
@@ -162,7 +164,7 @@ class TwoPartyTradeProtocolTests {
             pumpBob()
 
             // OK, now Bob has sent the partial transaction back to Alice and is waiting for Alice's signature.
-            assertThat(bobNode.storage.checkpointStorage.checkpoints).hasSize(1)
+            assertThat(bobNode.checkpointStorage.checkpoints).hasSize(1)
 
             // TODO: remove once validated transactions are persisted to disk
             val recordedTransactions = bobNode.storage.validatedTransactions
@@ -208,15 +210,31 @@ class TwoPartyTradeProtocolTests {
                                 advertisedServices: Set<ServiceType>, id: Int, keyPair: KeyPair?): MockNetwork.MockNode {
                 return object : MockNetwork.MockNode(dir, config, network, networkMapAddr, advertisedServices, id, keyPair) {
                     // That constructs the storage service object in a customised way ...
-                    override fun constructStorageService(attachments: NodeAttachmentService, checkpointStorage: CheckpointStorage, keypair: KeyPair, identity: Party): StorageServiceImpl {
+                    override fun constructStorageService(attachments: NodeAttachmentService, keypair: KeyPair, identity: Party): StorageServiceImpl {
                         // To use RecordingMaps instead of ordinary HashMaps.
-                        return StorageServiceImpl(attachments, checkpointStorage, keypair, identity, { tableName -> name })
+                        return StorageServiceImpl(attachments, keypair, identity, { tableName -> name })
                     }
                 }
             }
         }, true, name, keyPair)
     }
 
+
+    private fun runSeller(smm: StateMachineManager, notary: NodeInfo,
+                  otherSide: SingleMessageRecipient, assetToSell: StateAndRef<OwnableState>, price: Amount,
+                  myKeyPair: KeyPair, buyerSessionID: Long): ListenableFuture<SignedTransaction> {
+        val seller = TwoPartyTradeProtocol.Seller(otherSide, notary, assetToSell, price, myKeyPair, buyerSessionID)
+        return smm.add("${TwoPartyTradeProtocol.TRADE_TOPIC}.seller", seller)
+    }
+
+    private fun runBuyer(smm: StateMachineManager, notaryNode: NodeInfo,
+                 otherSide: SingleMessageRecipient, acceptablePrice: Amount, typeToBuy: Class<out OwnableState>,
+                 sessionID: Long): ListenableFuture<SignedTransaction> {
+        val buyer = TwoPartyTradeProtocol.Buyer(otherSide, notaryNode.identity, acceptablePrice, typeToBuy, sessionID)
+        return smm.add("${TwoPartyTradeProtocol.TRADE_TOPIC}.buyer", buyer)
+    }
+
+
     @Test
     fun checkDependenciesOfSaleAssetAreResolved() {
         transactionGroupFor<ContractState> {
@@ -243,7 +261,7 @@ class TwoPartyTradeProtocolTests {
 
             net.runNetwork() // Clear network map registration messages
 
-            TwoPartyTradeProtocol.runSeller(
+            runSeller(
                     aliceNode.smm,
                     notaryNode.info,
                     bobNode.net.myAddress,
@@ -252,7 +270,7 @@ class TwoPartyTradeProtocolTests {
                     ALICE_KEY,
                     buyerSessionID
             )
-            TwoPartyTradeProtocol.runBuyer(
+            runBuyer(
                     bobNode.smm,
                     notaryNode.info,
                     aliceNode.net.myAddress,
@@ -356,7 +374,7 @@ class TwoPartyTradeProtocolTests {
 
         net.runNetwork() // Clear network map registration messages
 
-        val aliceResult = TwoPartyTradeProtocol.runSeller(
+        val aliceResult = runSeller(
                 aliceNode.smm,
                 notaryNode.info,
                 bobAddr,
@@ -365,7 +383,7 @@ class TwoPartyTradeProtocolTests {
                 ALICE_KEY,
                 buyerSessionID
         )
-        val bobResult = TwoPartyTradeProtocol.runBuyer(
+        val bobResult = runBuyer(
                 bobNode.smm,
                 notaryNode.info,
                 aliceAddr,