CORDA-3597 add missed data to checkpoint class (#5995)

* Add extra fields to StateMachineState

* Move structures into checkpoint as this is a more natural place.

node/src/main/kotlin/net/corda/node/services/persistence/DBCheckpointStorage.kt

@@ -7,6 +7,7 @@ import net.corda.core.utilities.ProgressTracker
 import net.corda.core.utilities.debug
 import net.corda.node.services.api.CheckpointStorage
 import net.corda.node.services.statemachine.Checkpoint
+import net.corda.node.services.statemachine.Checkpoint.FlowStatus
 import net.corda.nodeapi.internal.persistence.NODE_DATABASE_PREFIX
 import net.corda.nodeapi.internal.persistence.currentDBSession
 import org.apache.commons.lang3.ArrayUtils.EMPTY_BYTE_ARRAY
@@ -33,15 +34,6 @@ import javax.persistence.OneToOne
 class DBCheckpointStorage : CheckpointStorage {
     val log: Logger = LoggerFactory.getLogger(this::class.java)
 
-    enum class FlowStatus {
-        RUNNABLE,
-        FAILED,
-        COMPLETED,
-        HOSPITALIZED,
-        KILLED,
-        PAUSED
-    }
-
     enum class StartReason {
         RPC, FLOW, SERVICE, SCHEDULED, INITIATED
     }

node/src/main/kotlin/net/corda/node/services/statemachine/StateMachineState.kt

@@ -54,8 +54,20 @@ data class Checkpoint(
         val checkpointState: CheckpointState,
         val flowState: FlowState,
         val errorState: ErrorState,
-        val result: Any? = null
+        val result: Any? = null,
+        val status: FlowStatus = FlowStatus.RUNNABLE,
+        val progressStep: String? = null,
+        val flowIoRequest: FlowIORequest<*>? = null,
+        val compatible: Boolean = true
 ) {
+    enum class FlowStatus {
+        RUNNABLE,
+        FAILED,
+        COMPLETED,
+        HOSPITALIZED,
+        KILLED,
+        PAUSED
+    }
 
     val timestamp: Instant = Instant.now() // This will get updated every time a Checkpoint object is created/ created by copy.