org.apache.storm.container.cgroup

Class CgroupCenter

java.lang.Object

org.apache.storm.container.cgroup.CgroupCenter

All Implemented Interfaces:

CgroupOperation

public class CgroupCenter
extends Object
implements CgroupOperation

Method Summary

Modifier and Type	Method and 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.
static CgroupCenter	getInstance()
Set<SubSystem>	getSubSystems() get a list of available subsystems.
boolean	isMounted(Hierarchy hierarchy) check if a hiearchy is mounted.
boolean	isSubSystemEnabled(SubSystemType subSystemType) Check if a subsystem is enabled.
void	mount(Hierarchy hierarchy) mount a hierarchy.
void	umount(Hierarchy hierarchy) umount a heirarchy.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getInstance

public static CgroupCenter getInstance()

getHierarchies

public List<Hierarchy> getHierarchies()

Description copied from interface: CgroupOperation

Get a list of hierarchies.

Specified by:

getHierarchies in interface CgroupOperation

getSubSystems

public Set<SubSystem> getSubSystems()

Description copied from interface: CgroupOperation

get a list of available subsystems.

Specified by:

getSubSystems in interface CgroupOperation

isSubSystemEnabled

public boolean isSubSystemEnabled(SubSystemType subSystemType)

Description copied from interface: CgroupOperation

Check if a subsystem is enabled.

Specified by:

isSubSystemEnabled in interface CgroupOperation

getHierarchyWithSubSystem

public Hierarchy getHierarchyWithSubSystem(SubSystemType subSystem)

Description copied from interface: CgroupOperation

get the first hierarchy that has a certain subsystem isMounted.

Specified by:

getHierarchyWithSubSystem in interface CgroupOperation

getHierarchyWithSubSystems

public Hierarchy getHierarchyWithSubSystems(List<SubSystemType> subSystems)

Description copied from interface: CgroupOperation

get the first hierarchy that has a certain list of subsystems isMounted.

Specified by:

getHierarchyWithSubSystems in interface CgroupOperation

isMounted

public boolean isMounted(Hierarchy hierarchy)

Description copied from interface: CgroupOperation

check if a hiearchy is mounted.

Specified by:

isMounted in interface CgroupOperation

mount

public void mount(Hierarchy hierarchy)
           throws IOException

Description copied from interface: CgroupOperation

mount a hierarchy.

Specified by:

mount in interface CgroupOperation

Throws:

IOException

umount

public void umount(Hierarchy hierarchy)
            throws IOException

Description copied from interface: CgroupOperation

umount a heirarchy.

Specified by:

umount in interface CgroupOperation

Throws:

IOException

createCgroup

public void createCgroup(CgroupCommon cgroup)
                  throws SecurityException

Description copied from interface: CgroupOperation

create a cgroup.

Specified by:

createCgroup in interface CgroupOperation

Throws:

SecurityException

deleteCgroup

public void deleteCgroup(CgroupCommon cgroup)
                  throws IOException

Description copied from interface: CgroupOperation

delete a cgroup.

Specified by:

deleteCgroup in interface CgroupOperation

Throws:

IOException