json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "additionalProperties": false,
      "id": "http://sport-archive.com/input-schema/activities#",
      "properties": {
          "activityTaskList": {
              "description": "Tasklist (queue) where task are stacked and polled from",
              "maxLength": 64,
              "minLength": 3,
              "pattern": "^[\\w\\.\\- ]+$",
              "type": "string"
          },
          "class": {
              "description": "Class name implementing this activity",
              "maxLength": 256,
              "minLength": 8,
              "pattern": "^[\\w\\-]+$",
              "type": "string"
          },
          "description": {
              "description": "Activity description",
              "maxLength": 256,
              "minLength": 1,
              "type": "string"
          },
          "file": {
              "description": "File implementing this activity",
              "maxLength": 1024,
              "minLength": 16,
              "pattern": "^[\\w\\-\\./]+\\.php+$",
              "type": "string"
          },
          "heartbeatTimeout": {
              "description": "Max time between heartbeat",
              "maximum": 99999999,
              "minimum": 1,
              "type": "integer"
          },
          "name": {
              "description": "Activity name",
              "maxLength": 64,
              "minLength": 3,
              "type": "string"
          },
          "scheduleToCloseTimeout": {
              "description": "Max time from schedule to close for a task",
              "maximum": 31536000,
              "minimum": 1,
              "type": "integer"
          },
          "scheduleToStartTimeout": {
              "description": "Max time from schedule to start for a task",
              "maximum": 31536000,
              "minimum": 1,
              "type": "integer"
          },
          "startToCloseTimeout": {
              "description": "Max time from start to close for a task",
              "maximum": 31536000,
              "minimum": 1,
              "type": "integer"
          },
          "version": {
              "description": "Activity version",
              "maxLength": 32,
              "minLength": 1,
              "pattern": "^[\\w\\.\\- ]+$",
              "type": "string"
          }
      },
      "required": [
          "name",
          "version",
          "description",
          "file",
          "class",
          "activityTaskList",
          "scheduleToStartTimeout",
          "scheduleToCloseTimeout",
          "startToCloseTimeout",
          "heartbeatTimeout"
      ],
      "title": "Schemas for activities items in activities array of main config file",
      "type": "object"
  }