All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`createCgroup(CgroupCommon cgroup)`	create a cgroup.
`void`	`deleteCgroup(CgroupCommon cgroup)`	delete a cgroup.
`List<Hierarchy>`	`getHierarchies()`	Get a list of hierarchies.
`Hierarchy`	`getHierarchyWithSubSystem(SubSystemType subsystem)`	get the first hierarchy that has a certain subsystem isMounted.
`Hierarchy`	`getHierarchyWithSubSystems(List<SubSystemType> subSystems)`	get the first hierarchy that has a certain list of subsystems isMounted.
`Set<SubSystem>`	`getSubSystems()`	get a list of available subsystems.
`boolean`	`isMounted(Hierarchy hierarchy)`	check if a hiearchy is mounted.
`boolean`	`isSubSystemEnabled(SubSystemType subsystem)`	Check if a subsystem is enabled.
`void`	`mount(Hierarchy hierarchy)`	mount a hierarchy.
`void`	`umount(Hierarchy hierarchy)`	umount a heirarchy.

getHierarchies
```
List<Hierarchy> getHierarchies()
```
Get a list of hierarchies.

getSubSystems
```
Set<SubSystem> getSubSystems()
```
get a list of available subsystems.

boolean isSubSystemEnabled(SubSystemType subsystem)

Check if a subsystem is enabled.

getHierarchyWithSubSystem
```
Hierarchy getHierarchyWithSubSystem(SubSystemType subsystem)
```
get the first hierarchy that has a certain subsystem isMounted.

getHierarchyWithSubSystems
```
Hierarchy getHierarchyWithSubSystems(List<SubSystemType> subSystems)
```
get the first hierarchy that has a certain list of subsystems isMounted.

boolean isMounted(Hierarchy hierarchy)

check if a hiearchy is mounted.

void mount(Hierarchy hierarchy)
    throws IOException

mount a hierarchy.

void umount(Hierarchy hierarchy)
     throws IOException

umount a heirarchy.

void createCgroup(CgroupCommon cgroup)
           throws SecurityException

create a cgroup.

void deleteCgroup(CgroupCommon cgroup)
           throws IOException

delete a cgroup.

Interface CgroupOperation