private int runAndBlock(ContainerId cId, String... cmd) throws IOException {
    String appId = "APP_" + getNextId();
    Container container = mock(Container.class);
    ContainerLaunchContext context = mock(ContainerLaunchContext.class);
    HashMap<String, String> env = new HashMap<String, String>();

    when(container.getContainerId()).thenReturn(cId);
    when(container.getLaunchContext()).thenReturn(context);

    when(context.getEnvironment()).thenReturn(env);

    String script = writeScriptFile(cmd);

    Path scriptPath = new Path(script);
    Path tokensPath = new Path("/dev/null");
    Path workDir = new Path(workSpace.getAbsolutePath());
    Path pidFile = new Path(workDir, "pid.txt");

    exec.activateContainer(cId, pidFile);
    return exec.launchContainer(
        container,
        scriptPath,
        tokensPath,
        appSubmitter,
        appId,
        workDir,
        dirsHandler.getLocalDirs(),
        dirsHandler.getLogDirs());
  }
 @Override
 public void run() {
   try {
     Thread.sleep(delay);
     containerExecutor.signalContainer(
         new ContainerSignalContext.Builder()
             .setContainer(container)
             .setUser(user)
             .setPid(pid)
             .setSignal(signal)
             .build());
   } catch (InterruptedException e) {
     return;
   } catch (IOException e) {
     String message =
         "Exception when user "
             + user
             + " killing task "
             + pid
             + " in DelayedProcessKiller: "
             + StringUtils.stringifyException(e);
     LOG.warn(message);
     container.handle(new ContainerDiagnosticsUpdateEvent(container.getContainerId(), message));
   }
 }
  private HashMap<String, String> addAppContainers(Application app) {
    Dispatcher dispatcher = new AsyncDispatcher();
    ApplicationAttemptId appAttemptId = BuilderUtils.newApplicationAttemptId(app.getAppId(), 1);
    Container container1 =
        new MockContainer(appAttemptId, dispatcher, conf, app.getUser(), app.getAppId(), 1);
    Container container2 =
        new MockContainer(appAttemptId, dispatcher, conf, app.getUser(), app.getAppId(), 2);
    nmContext.getContainers().put(container1.getContainerID(), container1);
    nmContext.getContainers().put(container2.getContainerID(), container2);

    app.getContainers().put(container1.getContainerID(), container1);
    app.getContainers().put(container2.getContainerID(), container2);
    HashMap<String, String> hash = new HashMap<String, String>();
    hash.put(container1.getContainerID().toString(), container1.getContainerID().toString());
    hash.put(container2.getContainerID().toString(), container2.getContainerID().toString());
    return hash;
  }
  private NodeStatus getNodeStatus() {

    NodeStatus nodeStatus = recordFactory.newRecordInstance(NodeStatus.class);
    nodeStatus.setNodeId(this.nodeId);

    int numActiveContainers = 0;
    List<ContainerStatus> containersStatuses = new ArrayList<ContainerStatus>();
    for (Iterator<Entry<ContainerId, Container>> i =
            this.context.getContainers().entrySet().iterator();
        i.hasNext(); ) {
      Entry<ContainerId, Container> e = i.next();
      ContainerId containerId = e.getKey();
      Container container = e.getValue();

      // Clone the container to send it to the RM
      org.apache.hadoop.yarn.api.records.ContainerStatus containerStatus =
          container.cloneAndGetContainerStatus();
      containersStatuses.add(containerStatus);
      ++numActiveContainers;
      LOG.info("Sending out status for container: " + containerStatus);

      if (containerStatus.getState() == ContainerState.COMPLETE) {
        // Remove
        i.remove();

        LOG.info("Removed completed container " + containerId);
      }
    }
    nodeStatus.setContainersStatuses(containersStatuses);

    LOG.debug(this.nodeId + " sending out status for " + numActiveContainers + " containers");

    NodeHealthStatus nodeHealthStatus = this.context.getNodeHealthStatus();
    if (this.healthChecker != null) {
      this.healthChecker.setHealthStatus(nodeHealthStatus);
    }
    LOG.debug(
        "Node's health-status : "
            + nodeHealthStatus.getIsNodeHealthy()
            + ", "
            + nodeHealthStatus.getHealthReport());
    nodeStatus.setNodeHealthStatus(nodeHealthStatus);

    return nodeStatus;
  }
    @Override
    protected void render(Block html) {
      ContainerId containerID;
      try {
        containerID = ConverterUtils.toContainerId($(CONTAINER_ID));
      } catch (IllegalArgumentException e) {
        html.p()._("Invalid containerId " + $(CONTAINER_ID))._();
        return;
      }

      DIV<Hamlet> div = html.div("#content");
      Container container = this.nmContext.getContainers().get(containerID);
      if (container == null) {
        div.h1("Unknown Container. Container might have completed, "
                + "please go back to the previous page and retry.")._();
        return;
      }
      ContainerStatus containerData = container.cloneAndGetContainerStatus();
      int exitCode = containerData.getExitStatus();
      String exiStatus = 
          (exitCode == YarnConfiguration.INVALID_CONTAINER_EXIT_STATUS) ? 
              "N/A" : String.valueOf(exitCode);
      info("Container information")
        ._("ContainerID", $(CONTAINER_ID))
        ._("ContainerState", container.getContainerState())
        ._("ExitStatus", exiStatus)
        ._("Diagnostics", containerData.getDiagnostics())
        ._("User", container.getUser())
        ._("TotalMemoryNeeded",
            container.getLaunchContext().getResource().getMemory())
        ._("logs", ujoin("containerlogs", $(CONTAINER_ID), container.getUser()),
            "Link to logs");
      html._(InfoBlock.class);
    }