helix-admin-webapp/src/main/java/org/apache/helix/webapp/resources/ResourceGroupResource.java [51:68]:
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  public Representation get() {
    StringRepresentation presentation = null;
    try {
      String clusterName =
          ResourceUtil.getAttributeFromRequest(getRequest(), ResourceUtil.RequestKey.CLUSTER_NAME);
      String resourceName =
          ResourceUtil.getAttributeFromRequest(getRequest(), ResourceUtil.RequestKey.RESOURCE_NAME);
      presentation = getIdealStateRepresentation(clusterName, resourceName);
    }

    catch (Exception e) {
      String error = ClusterRepresentationUtil.getErrorAsJsonStringFromException(e);
      presentation = new StringRepresentation(error, MediaType.APPLICATION_JSON);

      LOG.error("Exception in get resource group", e);
    }
    return presentation;
  }
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helix-admin-webapp/src/main/java/org/apache/helix/webapp/resources/IdealStateResource.java [67:84]:
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  public Representation get() {
    StringRepresentation presentation = null;
    try {
      String clusterName =
          ResourceUtil.getAttributeFromRequest(getRequest(), ResourceUtil.RequestKey.CLUSTER_NAME);
      String resourceName =
          ResourceUtil.getAttributeFromRequest(getRequest(), ResourceUtil.RequestKey.RESOURCE_NAME);
      presentation = getIdealStateRepresentation(clusterName, resourceName);
    }

    catch (Exception e) {
      String error = ClusterRepresentationUtil.getErrorAsJsonStringFromException(e);
      presentation = new StringRepresentation(error, MediaType.APPLICATION_JSON);

      LOG.error("Exception in get idealState", e);
    }
    return presentation;
  }
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