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CORDA-296: added rpc that returns an observable for node state (#2004)

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* CORDA-296: added rpc that returns an observable for node state; used to let rpc clients know that the know is about to shut down

* replaced node shut down observation String with enum
This commit is contained in:
bpaunescu
2017-11-08 12:44:10 +00:00
committed by GitHub
parent c7ec9ad8ac
commit 7d1f7ab53d
7 changed files with 59 additions and 0 deletions
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28
client/rpc/src/integration-test/kotlin/net/corda/client/rpc/RPCStabilityTests.kt
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@ -5,12 +5,16 @@ import net.corda.client.rpc.internal.RPCClientConfiguration
import net.corda.core.crypto.random63BitValue
import net.corda.core.internal.concurrent.fork
import net.corda.core.internal.concurrent.transpose
import net.corda.core.messaging.CordaRPCOps
import net.corda.core.messaging.NodeState
import net.corda.core.messaging.RPCOps
import net.corda.core.serialization.SerializationDefaults
import net.corda.core.serialization.serialize
import net.corda.core.utilities.*
import net.corda.node.services.Permissions.Companion.invokeRpc
import net.corda.node.services.messaging.RPCServerConfiguration
import net.corda.nodeapi.RPCApi
import net.corda.nodeapi.User
import net.corda.testing.driver.poll
import net.corda.testing.internal.*
import org.apache.activemq.artemis.api.core.SimpleString
@ -236,6 +240,30 @@ class RPCStabilityTests {
}
}
@Test
fun `clients receive notifications that node is shutting down`() {
val alice = User("Alice", "Alice", setOf(invokeRpc(CordaRPCOps::nodeStateObservable)))
val bob = User("Bob", "Bob", setOf(invokeRpc(CordaRPCOps::nodeStateObservable)))
val slagathor = User("Slagathor", "Slagathor", setOf(invokeRpc(CordaRPCOps::nodeStateObservable)))
val userList = listOf(alice, bob, slagathor)
val expectedMessages = ArrayList<NodeState>()
rpcDriver(startNodesInProcess = true) {
val node = startNode(rpcUsers = listOf(alice, bob, slagathor)).getOrThrow()
userList.forEach {
val connection = node.rpcClientToNode().start(it.username, it.password)
val nodeStateObservable = connection.proxy.nodeStateObservable()
nodeStateObservable.subscribe { update ->
expectedMessages.add(update)
}
}
node.stop()
}
assertEquals(userList.size, expectedMessages.size)
assertEquals(NodeState.SHUTTING_DOWN, expectedMessages.first())
}
interface TrackSubscriberOps : RPCOps {
fun subscribe(): Observable<Unit>
}