module sal-meter {
    namespace "urn:opendaylight:meter:service";
    prefix meter;

    import yang-ext {prefix ext; revision-date "2013-07-09";}
    import opendaylight-inventory {prefix inv;revision-date "2013-08-19";}
    import opendaylight-meter-types {prefix meter-type;revision-date "2013-09-18";}
    import flow-capable-transaction {prefix tr;}

    revision "2013-09-18" {
        description "Initial revision of meter service";
    }        
    
    grouping node-meter {
        uses "inv:node-context-ref";
        
        uses meter-type:meter;
    }

    /** Base configuration structure **/
    grouping meter-update {
        uses "inv:node-context-ref";

        container original-meter {
            uses meter-type:meter;
        }
        container updated-meter {
            uses meter-type:meter;
        }
    }

    rpc add-meter {
        input {
            uses tr:transaction-metadata;            
            leaf meter-ref {
                type meter-type:meter-ref;
            }
            uses node-meter;            
        }
        output {
            uses tr:transaction-aware;
        }
    }

    rpc remove-meter {
        input {
            uses tr:transaction-metadata;            
            leaf meter-ref {
                type meter-type:meter-ref;
            }
            
            uses node-meter;                       
        }
        output {
            uses tr:transaction-aware;
        }
    }

    rpc update-meter {
        input {
            uses tr:transaction-metadata;            
            leaf meter-ref {
                type meter-type:meter-ref;
            }
            
            uses meter-update;                       
        }
        output {
            uses tr:transaction-aware;
        }
    }
        
    notification meter-added {
        uses tr:transaction-metadata;
        leaf meter-ref {
            type meter-type:meter-ref;
        }
        uses node-meter;
        uses tr:transaction-aware;
    }

    notification meter-updated {
        uses tr:transaction-metadata;
        leaf meter-ref {
            type meter-type:meter-ref;
        }
        uses node-meter;
        uses tr:transaction-aware;
    }

    notification meter-removed {
        uses tr:transaction-metadata;
        leaf meter-ref {
            type meter-type:meter-ref;
        }
        uses node-meter;
        uses tr:transaction-aware;
    }
}