helix-admin-webapp/src/main/java/org/apache/helix/webapp/resources/IdealStateResource.java [55:79]:
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    getVariants().add(new Variant(MediaType.TEXT_PLAIN));
    getVariants().add(new Variant(MediaType.APPLICATION_JSON));
    setNegotiated(false);
  }

  /**
   * Get ideal state
   * <p>
   * Usage:
   * <code>curl http://{host:port}/clusters/{clusterName}/resourceGroups/{resourceName}/idealState
   */
  @Override
  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);
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helix-admin-webapp/src/main/java/org/apache/helix/webapp/resources/ResourceGroupResource.java [45:63]:
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    getVariants().add(new Variant(MediaType.TEXT_PLAIN));
    getVariants().add(new Variant(MediaType.APPLICATION_JSON));
    setNegotiated(false);
  }

  @Override
  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);
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