{
  "$udmi_version": "1.5.2",
  "title": "Metadata",
  "description": "[Metadata](../docs/specs/metadata.md) is a description about the device: a specification about how the device should be configured and expectations about what the device should be doing. Defined by `metadata.json`",
  "$section": "Site Model",
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false,
  "required": [ 
    "timestamp",
    "version",
    "system"
  ],
  "properties": {
    "timestamp": {
      "description": "RFC 3339 timestamp UTC the data was generated",
      "type": "string",
      "format": "date-time",
      "examples": ["2019-01-17T14:02:29.364Z"]
    },
    "version": {
      "description": "Version of the UDMI schema for this file",
      "type": "string"
    },
    "upgraded_from": {
      "description": "Original version of the UDMI schema for this file",
      "type": "string"
    },
    "hash": {
      "description": "DEPRECATED",
      "type": "string",
      "pattern": "^[0-9a-z]{8}$"
    },
    "operation": {
      "description": "Used for model update operations (so not a model proper), e.g. DELETE or BIND operations",
      "$ref": "file:common.json#/definitions/operation"
    },
    "cloud": {
      "$ref": "file:model_cloud.json#",
      "$presentation": {
        "section": "cloud"
      }
    },
    "system": {
      "$ref": "file:model_system.json#",
      "$presentation": {
        "section": "system"
      }
    },
    "externals": {
      "$ref": "file:model_externals.json#"
    },
    "relationships": {
      "$ref": "file:model_relationships.json#"
    },
    "gateway": {
      "$ref": "file:model_gateway.json#",
      "$presentation": {
        "section": "gateway"
      }
    },
    "discovery": {
      "$ref": "file:model_discovery.json#"
    },
    "localnet": {
      "$ref": "file:model_localnet.json#",
      "$presentation": {
        "section": "localnet"
      }
    },
    "testing": {
      "$ref": "file:model_testing.json#"
    },
    "features": {
      "$ref": "file:model_features.json#"
    },
    "alarmset": {
      "$ref": "file:model_alarmset.json#",
      "$presentation": {
        "section": "alarmset"
      }
    },
    "pointset": {
      "$ref": "file:model_pointset.json#",
      "$presentation": {
        "section": "pointset"
      }
    },
    "structure": {
      "existingJavaType": "java.util.HashMap<String, DiscoveryEvents>",
      "patternProperties": {
        "^[a-z][a-z0-9]*(_[a-z0-9]+)*$": {
          "$ref": "file:events_discovery.json"
        }
      }
    },
    "policy": {
      "$ref": "file:model_policy.json#"
  }
  }
}