{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "id": "4.2-textDataPositionSelectorValid.json",
  "assertionType": "must",
  "expectedResult": "valid",
  "onUnexpectedResult" : "failAndContinue",
  "errorMessage": "ERROR: Annotation contains a Text Position or Data Position selector that is NOT of format uri and NOT an object having a value key with a single sting value.",
  "title": "If present all **Selectors of _type_ TextPositionSelector or DataPositionSelector** have both a **_start_ key** and an **_end_ key**, each with a **single non-negative integer value** [model 4.2](https://www.w3.org/TR/annotation-model/#selectors)",
  "description": "True when no Fragment, Css or XPath selectors present or all such selectors values are of format uri or are objects having a both start and end keys, each with a single non-negative integer value. (Section 4.2)",
  "type": "object",
  "patternProperties":
  {
    "^(body|target)$":
    {
      "oneOf":
      [
        {"$ref": "id.json#/definitions/stringUri" },
        {
            "allOf":
            [
              { "$ref": "#/definitions/selectorSchema" },
              { "$ref": "#/definitions/itemsSchema" }
            ]
        },
        {
            "type": "array",
            "minItems": 1,
            "items":
            {
                "oneOf":
                [
                    {"$ref": "id.json#/definitions/stringUri" },
                    {
                        "allOf":
                        [
                          { "$ref": "#/definitions/selectorSchema" },
                          { "$ref": "#/definitions/itemsSchema" }
                        ]
                    }
                ]
            }
        }
      ]
    }
  },
  "definitions":
  {
      "selectorSchema":
      {
        "type": "object",
        "properties":
         {
           "selector":
            {
             "oneOf":
              [
                {"$ref": "id.json#/definitions/stringUri" },
                {
                 "type":"object",
                 "allOf":
                 [
                  { "$ref": "specificResource.json#/definitions/textPositionSelectorTypeValidIfPresent" },
                  { "$ref": "specificResource.json#/definitions/dataPositionSelectorTypeValidIfPresent" }
                 ]
                },
                {
                 "type": "array",
                 "minItems": 1,
                 "items":
                 {
                   "oneOf":
                   [
                    {"$ref": "id.json#/definitions/stringUri" },
                    {
                     "type":"object",
                     "allOf":
                     [
                      { "$ref": "specificResource.json#/definitions/textPositionSelectorTypeValidIfPresent" },
                      { "$ref": "specificResource.json#/definitions/dataPositionSelectorTypeValidIfPresent" }
                     ]
                    }
                   ]
                 }
                }
              ]
            }
         }
      },

      "itemsSchema":
      {
        "type": "object",
        "properties":
        {
            "items":
            {
                "type": "array",
                "minItems": 1,
                "items": {
                  "oneOf":
                    [
                        {"$ref": "id.json#/definitions/stringUri" },
                        {"$ref": "#/definitions/selectorSchema" }
                    ]
                }
            }
        }
      }
  }
}