Examples with GraphBinaryModule com.datastax.dse.driver.internal.core.graph.binary.GraphBinaryModule used on opensource projects

Example 1 with GraphBinaryModule

use of com.datastax.dse.driver.internal.core.graph.binary.GraphBinaryModule in project java-driver by datastax.

the class ContinuousGraphRequestHandlerSpeculativeExecutionTest method should_fail_if_no_more_nodes_and_speculative_execution_is_last.

@Test
@UseDataProvider(location = DseTestDataProviders.class, value = "idempotentGraphConfig")
public void should_fail_if_no_more_nodes_and_speculative_execution_is_last(boolean defaultIdempotence, GraphStatement<?> statement) throws Exception {
    GraphRequestHandlerTestHarness.Builder harnessBuilder = GraphRequestHandlerTestHarness.builder().withDefaultIdempotence(defaultIdempotence);
    PoolBehavior node1Behavior = harnessBuilder.customBehavior(node1);
    PoolBehavior node2Behavior = harnessBuilder.customBehavior(node2);
    try (GraphRequestHandlerTestHarness harness = harnessBuilder.build()) {
        SpeculativeExecutionPolicy speculativeExecutionPolicy = harness.getContext().getSpeculativeExecutionPolicy(DriverExecutionProfile.DEFAULT_NAME);
        long firstExecutionDelay = 100L;
        when(speculativeExecutionPolicy.nextExecution(any(Node.class), eq(null), eq(statement), eq(1))).thenReturn(firstExecutionDelay);
        GraphBinaryModule module = createGraphBinaryModule(harness.getContext());
        CompletionStage<AsyncGraphResultSet> resultSetFuture = new ContinuousGraphRequestHandler(statement, harness.getSession(), harness.getContext(), "test", module, graphSupportChecker).handle();
        node1Behavior.verifyWrite();
        node1Behavior.setWriteSuccess();
        // do not simulate a response from node1 yet
        // next scheduled timeout should be the first speculative execution. Get it and run it.
        CapturedTimeout speculativeExecution1 = harness.nextScheduledTimeout();
        assertThat(speculativeExecution1.getDelay(TimeUnit.MILLISECONDS)).isEqualTo(firstExecutionDelay);
        speculativeExecution1.task().run(speculativeExecution1);
        // node1 now replies with a BOOTSTRAPPING error that triggers a RETRY_NEXT
        // but the query plan is empty so the initial execution stops
        node1Behavior.setResponseSuccess(defaultDseFrameOf(new Error(ProtocolConstants.ErrorCode.IS_BOOTSTRAPPING, "mock message")));
        // Same thing with node2, so the speculative execution should reach the end of the query plan
        // and fail the request
        node2Behavior.setResponseSuccess(defaultDseFrameOf(new Error(ProtocolConstants.ErrorCode.IS_BOOTSTRAPPING, "mock message")));
        assertThatStage(resultSetFuture).isFailed(error -> {
            assertThat(error).isInstanceOf(AllNodesFailedException.class);
            Map<Node, List<Throwable>> nodeErrors = ((AllNodesFailedException) error).getAllErrors();
            assertThat(nodeErrors).containsOnlyKeys(node1, node2);
            assertThat(nodeErrors.get(node1).get(0)).isInstanceOf(BootstrappingException.class);
            assertThat(nodeErrors.get(node2).get(0)).isInstanceOf(BootstrappingException.class);
        });
    }
}

Example 2 with GraphBinaryModule

use of com.datastax.dse.driver.internal.core.graph.binary.GraphBinaryModule in project java-driver by datastax.

the class ContinuousGraphRequestHandlerSpeculativeExecutionTest method should_not_schedule_speculative_executions_if_not_idempotent.

@Test
@UseDataProvider(location = DseTestDataProviders.class, value = "nonIdempotentGraphConfig")
public void should_not_schedule_speculative_executions_if_not_idempotent(boolean defaultIdempotence, GraphStatement<?> statement) {
    GraphRequestHandlerTestHarness.Builder harnessBuilder = GraphRequestHandlerTestHarness.builder().withDefaultIdempotence(defaultIdempotence);
    PoolBehavior node1Behavior = harnessBuilder.customBehavior(node1);
    try (GraphRequestHandlerTestHarness harness = harnessBuilder.build()) {
        SpeculativeExecutionPolicy speculativeExecutionPolicy = harness.getContext().getSpeculativeExecutionPolicy(DriverExecutionProfile.DEFAULT_NAME);
        GraphBinaryModule module = createGraphBinaryModule(harness.getContext());
        new ContinuousGraphRequestHandler(statement, harness.getSession(), harness.getContext(), "test", module, graphSupportChecker).handle();
        node1Behavior.verifyWrite();
        node1Behavior.setWriteSuccess();
        // should not schedule any timeout
        assertThat(harness.nextScheduledTimeout()).isNull();
        verifyNoMoreInteractions(speculativeExecutionPolicy);
        verifyNoMoreInteractions(nodeMetricUpdater1);
    }
}

Example 3 with GraphBinaryModule

use of com.datastax.dse.driver.internal.core.graph.binary.GraphBinaryModule in project java-driver by datastax.

the class ContinuousGraphRequestHandlerSpeculativeExecutionTest method should_stop_retrying_other_executions_if_result_complete.

@Test
@UseDataProvider(location = DseTestDataProviders.class, value = "idempotentGraphConfig")
public void should_stop_retrying_other_executions_if_result_complete(boolean defaultIdempotence, GraphStatement<?> statement) throws Exception {
    GraphRequestHandlerTestHarness.Builder harnessBuilder = GraphRequestHandlerTestHarness.builder().withDefaultIdempotence(defaultIdempotence);
    PoolBehavior node1Behavior = harnessBuilder.customBehavior(node1);
    PoolBehavior node2Behavior = harnessBuilder.customBehavior(node2);
    PoolBehavior node3Behavior = harnessBuilder.customBehavior(node3);
    try (GraphRequestHandlerTestHarness harness = harnessBuilder.build()) {
        SpeculativeExecutionPolicy speculativeExecutionPolicy = harness.getContext().getSpeculativeExecutionPolicy(DriverExecutionProfile.DEFAULT_NAME);
        long firstExecutionDelay = 100L;
        when(speculativeExecutionPolicy.nextExecution(any(Node.class), eq(null), eq(statement), eq(1))).thenReturn(firstExecutionDelay);
        GraphBinaryModule module = createGraphBinaryModule(harness.getContext());
        CompletionStage<AsyncGraphResultSet> resultSetFuture = new ContinuousGraphRequestHandler(statement, harness.getSession(), harness.getContext(), "test", module, graphSupportChecker).handle();
        node1Behavior.verifyWrite();
        node1Behavior.setWriteSuccess();
        // next scheduled timeout should be the first speculative execution. Get it and run it.
        CapturedTimeout speculativeExecution1 = harness.nextScheduledTimeout();
        assertThat(speculativeExecution1.getDelay(TimeUnit.MILLISECONDS)).isEqualTo(firstExecutionDelay);
        speculativeExecution1.task().run(speculativeExecution1);
        node2Behavior.verifyWrite();
        node2Behavior.setWriteSuccess();
        // Complete the request from the initial execution
        node1Behavior.setResponseSuccess(defaultDseFrameOf(singleGraphRow(GraphProtocol.GRAPH_BINARY_1_0, module)));
        assertThatStage(resultSetFuture).isSuccess();
        // node2 replies with a response that would trigger a RETRY_NEXT if the request was still
        // running
        node2Behavior.setResponseSuccess(defaultDseFrameOf(new Error(ProtocolConstants.ErrorCode.IS_BOOTSTRAPPING, "mock message")));
        // The speculative execution should not move to node3 because it is stopped
        node3Behavior.verifyNoWrite();
    }
}

Example 4 with GraphBinaryModule

use of com.datastax.dse.driver.internal.core.graph.binary.GraphBinaryModule in project java-driver by datastax.

the class GraphRequestHandlerTest method should_invoke_request_tracker_and_update_metrics.

@Test
@UseDataProvider("dseVersionsWithDefaultGraphProtocol")
public void should_invoke_request_tracker_and_update_metrics(GraphProtocol graphProtocol, Version dseVersion) throws IOException {
    when(nodeMetricUpdater1.isEnabled(DseNodeMetric.GRAPH_MESSAGES, DriverExecutionProfile.DEFAULT_NAME)).thenReturn(true);
    GraphRequestHandlerTestHarness.Builder builder = GraphRequestHandlerTestHarness.builder().withGraphProtocolForTestConfig(graphProtocol).withDseVersionInMetadata(dseVersion);
    PoolBehavior node1Behavior = builder.customBehavior(node);
    GraphRequestHandlerTestHarness harness = builder.build();
    GraphBinaryModule module = createGraphBinaryModule(harness.getContext());
    GraphSupportChecker graphSupportChecker = mock(GraphSupportChecker.class);
    when(graphSupportChecker.isPagingEnabled(any(), any())).thenReturn(false);
    when(graphSupportChecker.inferGraphProtocol(any(), any(), any())).thenReturn(graphProtocol);
    GraphRequestAsyncProcessor p = Mockito.spy(new GraphRequestAsyncProcessor(harness.getContext(), graphSupportChecker));
    when(p.getGraphBinaryModule()).thenReturn(module);
    RequestTracker requestTracker = mock(RequestTracker.class);
    when(harness.getContext().getRequestTracker()).thenReturn(requestTracker);
    GraphStatement<?> graphStatement = ScriptGraphStatement.newInstance("mockQuery");
    node1Behavior.setResponseSuccess(defaultDseFrameOf(singleGraphRow(graphProtocol, module)));
    GraphResultSet grs = new GraphRequestSyncProcessor(new GraphRequestAsyncProcessor(harness.getContext(), graphSupportChecker)).process(graphStatement, harness.getSession(), harness.getContext(), "test-graph");
    List<GraphNode> nodes = grs.all();
    assertThat(nodes.size()).isEqualTo(1);
    GraphNode graphNode = nodes.get(0);
    assertThat(graphNode.isVertex()).isTrue();
    Vertex actual = graphNode.asVertex();
    assertThat(actual.label()).isEqualTo("person");
    assertThat(actual.id()).isEqualTo(1);
    if (!graphProtocol.isGraphBinary()) {
        // GraphBinary does not encode properties regardless of whether they are present in the
        // parent element or not :/
        assertThat(actual.property("name").id()).isEqualTo(11);
        assertThat(actual.property("name").value()).isEqualTo("marko");
    }
    verify(requestTracker).onSuccess(eq(graphStatement), anyLong(), any(DriverExecutionProfile.class), eq(node), matches(LOG_PREFIX_PER_REQUEST));
    verify(requestTracker).onNodeSuccess(eq(graphStatement), anyLong(), any(DriverExecutionProfile.class), eq(node), matches(LOG_PREFIX_PER_REQUEST));
    verifyNoMoreInteractions(requestTracker);
    verify(nodeMetricUpdater1).isEnabled(DseNodeMetric.GRAPH_MESSAGES, DriverExecutionProfile.DEFAULT_NAME);
    verify(nodeMetricUpdater1).updateTimer(eq(DseNodeMetric.GRAPH_MESSAGES), eq(DriverExecutionProfile.DEFAULT_NAME), anyLong(), eq(TimeUnit.NANOSECONDS));
    verifyNoMoreInteractions(nodeMetricUpdater1);
    verify(harness.getSession().getMetricUpdater()).isEnabled(DseSessionMetric.GRAPH_REQUESTS, DriverExecutionProfile.DEFAULT_NAME);
    verify(harness.getSession().getMetricUpdater()).updateTimer(eq(DseSessionMetric.GRAPH_REQUESTS), eq(DriverExecutionProfile.DEFAULT_NAME), anyLong(), eq(TimeUnit.NANOSECONDS));
    verifyNoMoreInteractions(harness.getSession().getMetricUpdater());
}

Example 5 with GraphBinaryModule

use of com.datastax.dse.driver.internal.core.graph.binary.GraphBinaryModule in project java-driver by datastax.

the class ReactiveGraphRequestProcessorTest method should_complete_single_page_result.

@Test
@UseDataProvider(value = "allDseProtocolVersionsAndSupportedGraphProtocols", location = DseTestDataProviders.class)
public void should_complete_single_page_result(DseProtocolVersion version, GraphProtocol graphProtocol) throws IOException {
    when(graphSupportChecker.isPagingEnabled(any(), any())).thenReturn(false);
    when(graphSupportChecker.inferGraphProtocol(any(), any(), any())).thenReturn(graphProtocol);
    GraphRequestHandlerTestHarness.Builder builder = GraphRequestHandlerTestHarness.builder().withProtocolVersion(version);
    PoolBehavior node1Behavior = builder.customBehavior(node1);
    try (GraphRequestHandlerTestHarness harness = builder.build()) {
        DefaultSession session = harness.getSession();
        DefaultDriverContext context = harness.getContext();
        GraphStatement<?> graphStatement = ScriptGraphStatement.newInstance("g.V()");
        GraphBinaryModule graphBinaryModule = createGraphBinaryModule(context);
        when(asyncProcessor.getGraphBinaryModule()).thenReturn(graphBinaryModule);
        ReactiveGraphResultSet publisher = new ReactiveGraphRequestProcessor(asyncProcessor).process(graphStatement, session, context, "test");
        Flowable<ReactiveGraphNode> rowsPublisher = Flowable.fromPublisher(publisher).cache();
        rowsPublisher.subscribe();
        // emulate single page
        node1Behavior.setResponseSuccess(defaultDseFrameOf(tenGraphRows(graphProtocol, graphBinaryModule, 1, true)));
        List<ReactiveGraphNode> rows = rowsPublisher.toList().blockingGet();
        assertThat(rows).hasSize(10);
        checkResultSet(rows);
        Flowable<ExecutionInfo> execInfosFlowable = Flowable.fromPublisher(publisher.getExecutionInfos());
        assertThat(execInfosFlowable.toList().blockingGet()).hasSize(1).containsExactly(rows.get(0).getExecutionInfo());
    }
}