# Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
Admin = AdminV2 | AdminV3 | AdminV4

AdminV2 =
 element admin {
   attribute version { "2.0" } &
   element adminserver { service.attlist } &
   element minSlobroksPerCluster { xsd:positiveInteger }? & # TODO: Remove when no applications use this
   GenericConfig* &
   LogServer? &
   (ConfigServer | ConfigServers)? &
   FileDistribution? &
   AdminSlobroks? &
   (LegacyAdminMonitoring | AdminMonitoring)? &
   (LegacyMetricConsumers | Metrics)? &
   ClusterControllers? &
   LogForwarding?
 }

AdminV3 =
  element admin {
    attribute version { "3.0"  } &
    element minSlobroksPerCluster { xsd:positiveInteger }? & # TODO: Remove when no applications use this
    GenericConfig* &
    Nodes
  }

AdminV4 =
  element admin {
    attribute version { "4.0"  } &
    element minSlobroksPerCluster { xsd:positiveInteger }? & # TODO: Remove when no applications use this
    AdminV4Slobroks? &
    AdminV4LogServers? &
    GenericConfig* &
    (LegacyAdminMonitoring | AdminMonitoring)? &
    (LegacyMetricConsumers | Metrics)? &
    LogForwarding?
  }

AdminV4Slobroks =
  element slobroks {
    OptionalDedicatedNodes
  }

AdminV4LogServers =
  element logservers {
    OptionalDedicatedNodes
  }

AdminSlobroks =
   element slobroks {
      element slobrok {
         service.attlist &
         attribute index { xsd:nonNegativeInteger }?
      }+
   }

AdminMonitoring =
   element monitoring {
      attribute interval { xsd:int }?,
      attribute systemname { xsd:string }?
   }

# TODO: Alternative name for the 'monitoring' tag. Remove on Vespa 7
LegacyAdminMonitoring =
   element yamas {
      attribute interval { xsd:int }?,
      attribute systemname { xsd:string }?
   }


ConfigServer = element configserver {
   service.attlist
}

ConfigServers = element configservers {
   ConfigServer+
}

LogServer = element logserver {
   service.attlist
}

FileDistribution = element filedistribution {
   element uploadbitrate { xsd:string {   pattern = "\d+(\.\d*)?\s*[kmgKMG]?" } }? &
   element downloadbitrate { xsd:string { pattern = "\d+(\.\d*)?\s*[kmgKMG]?" } }?
}

Metrics = element metrics {
    element consumer {
        attribute id { xsd:Name } &
        element metric-set { attribute id { xsd:Name } }* &
        element metric {
            attribute id { xsd:Name } &
            attribute display-name { xsd:Name }?
        }*
    }+
}

# TODO: Remove on Vespa 7
LegacyMetricConsumers = element metric-consumers {
    element consumer {
        attribute name { xsd:string { pattern = "[a-zA-Z][_a-zA-Z0-9]*" } }&
        element metric {
            attribute name{xsd:Name} &
            attribute output-name{xsd:Name}?
         }+
    }+
}

ClusterControllers = element cluster-controllers {
    attribute standalone-zookeeper { xsd:string  }? &
    element cluster-controller {
       service.attlist
    }+
}

LogForwarding = element logforwarding {
    element forward {
        attribute type {xsd:string } &
        element source {
            element log {  "access"| "vespa" }+
        } &
        element destination {
            element endpoint { xsd:string } &
            element index { xsd:string } # TODO: Mandatory or with a default value?
        }
    }+

}