helix-admin-webapp/src/main/java/org/apache/helix/webapp/resources/ClusterResource.java [121:135]:
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  @Override
  public Representation post(Representation entity) {
    try {
      String clusterName =
          ResourceUtil.getAttributeFromRequest(getRequest(), ResourceUtil.RequestKey.CLUSTER_NAME);
      ZkClient zkClient =
          ResourceUtil.getAttributeFromCtx(getContext(), ResourceUtil.ContextKey.ZKCLIENT);
      ClusterSetup setupTool = new ClusterSetup(zkClient);

      JsonParameters jsonParameters = new JsonParameters(entity);
      String command = jsonParameters.getCommand();

      if (command == null) {
        throw new HelixException("Could NOT find 'command' in parameterMap: "
            + jsonParameters._parameterMap);
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helix-admin-webapp/src/main/java/org/apache/helix/webapp/resources/ControllerResource.java [125:139]:
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  @Override
  public Representation post(Representation entity) {
    try {
      String clusterName =
          ResourceUtil.getAttributeFromRequest(getRequest(), ResourceUtil.RequestKey.CLUSTER_NAME);
      ZkClient zkClient =
          ResourceUtil.getAttributeFromCtx(getContext(), ResourceUtil.ContextKey.ZKCLIENT);
      ClusterSetup setupTool = new ClusterSetup(zkClient);

      JsonParameters jsonParameters = new JsonParameters(entity);
      String command = jsonParameters.getCommand();

      if (command == null) {
        throw new HelixException("Could NOT find 'command' in parameterMap: "
            + jsonParameters._parameterMap);
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