Examples with Flow2Handler com.sequenceiq.flow.core.Flow2Handler used on opensource projects

Example 6 with Flow2Handler

use of com.sequenceiq.flow.core.Flow2Handler in project cloudbreak by hortonworks.

the class HeartbeatServiceTest method testOneNodeTakesAllFlowsWithCleanup.

@Test
public void testOneNodeTakesAllFlowsWithCleanup() {
    List<Node> clusterNodes = getClusterNodes();
    // myself
    clusterNodes.get(0).setLastUpdated(200_000L);
    // set all nodes to failed except myself
    for (int i = 1; i < clusterNodes.size(); i++) {
        Node node = clusterNodes.get(i);
        node.setLastUpdated(50_000L);
    }
    when(nodeService.findAll()).thenReturn(clusterNodes);
    when(clock.getCurrentTimeMillis()).thenReturn(200_000L);
    // all flows that need to be re-distributed
    List<FlowLog> node1FlowLogs = getFlowLogs(2, 5000);
    List<String> suspendedFlows = node1FlowLogs.stream().map(FlowLog::getFlowId).distinct().collect(Collectors.toList());
    when(flowLogService.findAllByCloudbreakNodeId(NODE_1_ID)).thenReturn(new HashSet<>(node1FlowLogs)).thenReturn(Collections.emptySet());
    Set<FlowLog> node2FlowLogs = new HashSet<>(getFlowLogs(3, 3000));
    suspendedFlows.addAll(node2FlowLogs.stream().map(FlowLog::getFlowId).distinct().collect(Collectors.toList()));
    when(flowLogService.findAllByCloudbreakNodeId(NODE_2_ID)).thenReturn(node2FlowLogs).thenReturn(Collections.emptySet());
    Map<Node, List<String>> distribution = new HashMap<>();
    distribution.computeIfAbsent(clusterNodes.get(0), v -> new ArrayList<>()).addAll(Arrays.asList(suspendedFlows.get(0), suspendedFlows.get(1), suspendedFlows.get(2), suspendedFlows.get(3), suspendedFlows.get(4)));
    when(flowDistributor.distribute(any(), any())).thenReturn(distribution);
    Set<FlowLog> myNewFlowLogs = new HashSet<>();
    myNewFlowLogs.addAll(node1FlowLogs);
    myNewFlowLogs.addAll(node2FlowLogs);
    when(flowLogService.findAllByCloudbreakNodeId(MY_ID)).thenReturn(myNewFlowLogs);
    when(runningFlows.get(any())).thenReturn(null);
    heartbeatService.scheduledFlowDistribution();
    verify(flowLogService).saveAll(flowLogListCaptor.capture());
    List<FlowLog> updatedFlows = flowLogListCaptor.getValue();
    assertEquals(myNewFlowLogs.size(), updatedFlows.size());
    for (FlowLog updatedFlow : updatedFlows) {
        assertEquals(MY_ID, updatedFlow.getCloudbreakNodeId());
    }
    verify(flow2Handler, times(5)).restartFlow(stringCaptor.capture());
    List<String> allFlowIds = stringCaptor.getAllValues();
    assertEquals(5L, allFlowIds.size());
    for (String flowId : suspendedFlows) {
        assertTrue(allFlowIds.contains(flowId));
    }
}