StatisticService (ONOS Java API (2.5.4))

```
public interface StatisticService
```
Service for obtaining statistic information about link in the system. Statistics are obtained from the FlowRuleService in order to minimize the amount of hammering occurring at the dataplane.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`FlowRule`	`highestHitter(ConnectPoint connectPoint)`	Returns the highest hitter (a flow rule) for a given port, ie.
`Load`	`load(ConnectPoint connectPoint)`	Obtain the load for the given port.
`Load`	`load(Link link)`	Obtain the load for a the ingress to the given link.
`Load`	`load(Link link, ApplicationId appId, Optional<GroupId> groupId)`	Obtain the load for a the ingress to the given link used by the specified application ID and group ID.
`Link`	`max(Path path)`	Find the most loaded link along a path.
`Link`	`min(Path path)`	Find the least loaded link along a path.

- Method Detail
  - load
```
Load load(Link link)
```
    Obtain the load for a the ingress to the given link.
    
    Parameters:
    
    link - the link to query.
    
    Returns:
    
    a Load
  - load
```
Load load(ConnectPoint connectPoint)
```
    Obtain the load for the given port.
    
    Parameters:
    
    connectPoint - the port to query
    
    Returns:
    
    a Load
  - max
```
Link max(Path path)
```
    Find the most loaded link along a path.
    
    Parameters:
    
    path - the path to search in
    
    Returns:
    
    the most loaded Link.
  - min
```
Link min(Path path)
```
    Find the least loaded link along a path.
    
    Parameters:
    
    path - the path to search in
    
    Returns:
    
    the least loaded Link.
  - highestHitter
```
FlowRule highestHitter(ConnectPoint connectPoint)
```
    Returns the highest hitter (a flow rule) for a given port, ie. the flow rule which is generating the most load.
    
    Parameters:
    
    connectPoint - the port
    
    Returns:
    
    the flow rule
  - load
```
Load load(Link link,
          ApplicationId appId,
          Optional<GroupId> groupId)
```
    Obtain the load for a the ingress to the given link used by the specified application ID and group ID.
    
    Parameters:
    
    link - link to query
    
    appId - application ID to filter with
    
    groupId - group ID to filter with
    
    Returns:
    
    Load