module opendaylight-port-statistics {
    namespace "urn:opendaylight:port:statistics";
    prefix portstat;

	import flow-capable-transaction {prefix tr;}
    import yang-ext {prefix ext; revision-date "2013-07-09";}
    import ietf-yang-types {prefix yang; revision-date "2010-09-24";}   
    import opendaylight-inventory {prefix inv;revision-date "2013-08-19";}
    import opendaylight-statistics-types {prefix stat-types;revision-date "2013-09-25";}

    contact
        "Anilkumar Vishnoi
        Email: avishnoi@in.ibm.com";

    revision "2013-12-14" {
        description "Initial revision of port statistics model";
    }
    
    //Augment port statistics data to the flow-capable-node-connector
	augment "/inv:nodes/inv:node/inv:node-connector" {
        ext:augment-identifier "flow-capable-node-connector-statistics-data";
        uses flow-capable-node-connector-statistics;
    }
	
	grouping flow-capable-node-connector-statistics {
        container flow-capable-node-connector-statistics {
            //config "false";
            uses stat-types:node-connector-statistics;
        }
	}    
	
    // RPC calls
    rpc get-all-ports-statistics {
    	description "Get statistics for all the ports from the node";
        input {
            uses inv:node-context-ref;
        }
        output {
            uses stat-types:node-connector-statistics;
            uses tr:transaction-aware;
        }
    }
    
    rpc get-port-statistics {
    	description "Get statistics for given port from the node";
    	input {
    		uses inv:node-context-ref;
    		leaf node-connector-id {
    			type inv:node-connector-id;
    		}
    	}
    	output {
            uses stat-types:node-connector-statistics;
            uses tr:transaction-aware;
    	}
    }
    
    //Notification for port statistics update
	grouping node-connector-statistics-and-port-number-map {
		description "List of flow and statistics map";
		list node-connector-statistics-and-port-number-map {
			key "node-connector-id";
			leaf node-connector-id {
				type inv:node-connector-id;
			}
			uses stat-types:node-connector-statistics;
		}
	}

	notification port-statistics-update {
        leaf moreReplies {
            type boolean;
        }
        uses inv:node;
		uses node-connector-statistics-and-port-number-map;
        uses tr:transaction-aware;
    }
}