module alto-model-base {
    yang-version 1;

    namespace "urn:opendaylight:alto:service:model";

    prefix "alto-model-base";

    import "alto-basic-types" {
        prefix "alto-types";
    }

    import "alto-resourcepool" {
        prefix "alto-resourcepool";
    }

    import "yang-ext" {
        prefix "yang-ext";
    }

    organization "Yale University";

    contact "alto-dev@lists.opendaylight.org";


    revision "2015-10-21" {
        description "Initial revision of ALTO base service model";
    }

    grouping "alto-request-base" {
        leaf "service-reference" {
            yang-ext:context-reference "alto-resourcepool:service-context";

            type "instance-identifier";
        }

        leaf "type" {
            type "identityref" {
                base "alto-resourcepool:resource-type";
            }
        }

        choice "request" {
        }
    }

    grouping "alto-response-base" {
        leaf "type" {
            type "identityref" {
                base "alto-resourcepool:resource-type";
            }
        }

        choice "response" {
        }
    }

    identity "resource-type-error" {
        base "alto-resourcepool:resource-type";
        description
            "The identity for ALTO error";
    }

    grouping "alto-response-error" {
        uses "alto-response-base" {
            augment "response" {
                case "error-response" {
                    container "error" {
                        leaf "error-code" {
                            type "string";
                        }

                        //TODO
                    }
                }
            }
        }
    }

    rpc query {
        input {
            uses "alto-request-base";
        }

        output {
            uses "alto-response-error";
        }
    }
}