org.smartfrog.examples.dynamicwebserver.monitor
Class CPUMonitorImpl

java.lang.Object
  org.smartfrog.sfcore.reference.RemoteReferenceResolverHelperImpl
      org.smartfrog.sfcore.prim.PrimImpl
          org.smartfrog.examples.dynamicwebserver.monitor.CPUMonitorImpl

All Implemented Interfaces:

java.lang.Runnable, java.rmi.Remote, DataSource, CPUMonitor, MessageKeys, Diagnostics, Liveness, Prim, RemoteReferenceResolver, RemoteReferenceResolverHelper

public class CPUMonitorImpl
extends PrimImpl
implements Prim, java.lang.Runnable, CPUMonitor, DataSource

There are basically two ways in which this component could work.

1) Send the status every minute to the Control object. The problem with this is that if the control object was controlling 1000 machines this could means lots of traffic and not necessarily the most scalable option.

2) Notify the Control object when the CPU usgae exceeds a certain level. The Control object could then periodically poll the Monitor component. But at all times it would be possible for the Control object to query the Monitor component.

Field Summary

Fields inherited from class org.smartfrog.sfcore.prim.PrimImpl

refLivenessDelay, refLivenessFactor, sfCompleteName, sfContext, sfDeployHooks, sfDeployWithHooks, sfExportRef, sfIsDeployed, sfIsStarted, sfIsTerminated, sfIsTerminating, sfLivenessCount, sfLivenessDelay, sfLivenessFactor, sfLivenessSender, sfParent, sfStartHooks, sfTerminateWithHooks, termLock

Fields inherited from interface org.smartfrog.examples.dynamicwebserver.monitor.CPUMonitor

DELAY, LOGTO

Fields inherited from interface org.smartfrog.sfcore.common.MessageKeys

CANNOT_LINK_TO_PREDICATE, COMPONENT_TERMINATED, COPY_FAILED, COPY_SERIALIZE_FAILED, ERROR_NO_SECURITY_BUT_REQUIRED, ILLEGAL_BOOLEAN_PARAMETER, ILLEGAL_NUMERIC_PARAMETER, ILLEGAL_STRING_PARAMETER, ILLEGAL_VECTOR_PARAMETER, LIVENESS_SEND_FAILURE, LIVENESS_SEND_FAILURE_IN, MISSING_PARAMETER, MSG_CLASS_NOT_FOUND, MSG_CONNECT_ERR, MSG_CONT_OTHER_DEPLOY, MSG_DEPLOY_COMP_TERMINATED, MSG_DEPLOY_SUCCESS, MSG_DEPLOYWITH_PHASE_FAILED, MSG_DETACH_SUCCESS, MSG_DETACH_TERMINATE_SUCCESS, MSG_ERR_DEPLOY_FROM_URL, MSG_ERR_PARSE, MSG_ERR_RESOLVE_PHASE, MSG_ERR_SF_RUNNING, MSG_ERR_TERM, MSG_FAILED_INET_ADDRESS_LOOKUP, MSG_FAILED_TO_CONTACT_PARENT, MSG_FILE_NOT_FOUND, MSG_HOOK_ACTION_FAILED, MSG_ILLEGAL_ACCESS, MSG_ILLEGAL_CLASS_TYPE, MSG_ILLEGAL_CLASS_TYPE_EXPECTING_GOT, MSG_ILLEGAL_REFERENCE, MSG_INPUTSTREAM_NULL, MSG_INSTANTIATION_ERROR, MSG_INVALID_OBJECT_TYPE, MSG_INVOCATION_TARGET, MSG_LANG_NOT_FOUND, MSG_LIVENESS_START_FAILED, MSG_LOADING_URL, MSG_METHOD_NOT_FOUND, MSG_NON_REP_ATTRIB, MSG_NOT_COMPONENT_REFERENCE, MSG_NOT_FOUND_ATTRIBUTE, MSG_NOT_FOUND_REFERENCE, MSG_NOT_VALUE_REFERENCE, MSG_NULL_DEF_METHOD, MSG_NULL_URL, MSG_OBJECT_REGISTRATION_FAILED, MSG_PARENT_LOCATION_FAILED, MSG_PING_SUCCESS, MSG_RANDM_ERR, MSG_REMOTE_CONNECT_ERR, MSG_REPEATED_ATTRIBUTE, MSG_SF_DEAD, MSG_SF_READY, MSG_SF_TERMINATED, MSG_STACKTRACE_FOLLOWS, MSG_START_COMP_TERMINATED, MSG_TERMINATE_SUCCESS, MSG_UNHANDLED_EXCEPTION, MSG_UNKNOWN_HOST, MSG_UNRESOLVED_REFERENCE, MSG_UNRESOLVED_REFERENCE_IN, MSG_UPDATE_SUCCESS, MSG_URL_NOT_FOUND, MSG_URL_TO_PARSE_NOT_FOUND, MSG_WARNING_LIVENESS_ENABLED, MSG_WARNING_STACKTRACE_DISABLED, MSG_WARNING_STACKTRACE_ENABLED, ROOT_MUST_BE_COMPONENT, WARN_NO_SECURITY

Constructor Summary

CPUMonitorImpl()

Method Summary

int	getAverageLast10Minutes()
int	getAverageLast30Minutes()
int	getAverageLast60Minutes()
int	getAverageLastMinute()
int	getCurrent()
int	getData() Returns an int containing the data
void	run()
void	sfDeploy() Called after instantiation for deployment purposes.
void	sfStart() Can be called to start components.
void	sfTerminateWith(TerminationRecord tr) Provides hook for subclasses to implement useful termination behavior.
void	updateFigures(int newMin)

Methods inherited from class org.smartfrog.sfcore.prim.PrimImpl

equals, hashCode, registerWithProcessCompound, sfAddAttribute, sfAttributeKeyFor, sfAttributes, sfCompleteName, sfCompleteNameSafe, sfContainsAttribute, sfContainsValue, sfContext, sfDeployedHost, sfDeployedProcessName, sfDeployWith, sfDetach, sfDetachAndTerminate, sfDiagnosticsReport, sfDumpState, sfExport, sfExportRef, sfExportRef, sfGetApplicationLog, sfGetCoreLog, sfGetLog, sfIsDeployed, sfIsRemote, sfIsStarted, sfIsTerminated, sfIsTerminating, sfLivenessFailure, sfLog, sfParent, sfParentageChanged, sfPing, sfRemoveAttribute, sfReplaceAttribute, sfResolve, sfResolve, sfResolveHere, sfResolveHere, sfResolveParent, sfSetLog, sfStartLivenessSender, sfStopLivenessSender, sfTerminate, sfTerminatedWith, sfTerminateQuietlyWith, sfValues, terminateComponent, terminateNotifying, toString

Methods inherited from class org.smartfrog.sfcore.reference.RemoteReferenceResolverHelperImpl

sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolveWithParser

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.smartfrog.sfcore.prim.Prim

sfAddAttribute, sfAttributeKeyFor, sfAttributes, sfCompleteName, sfContainsAttribute, sfContainsValue, sfContext, sfDeployedHost, sfDeployedProcessName, sfDeployWith, sfDetach, sfDetachAndTerminate, sfDumpState, sfIsDeployed, sfIsStarted, sfIsTerminated, sfIsTerminating, sfParent, sfParentageChanged, sfRemoveAttribute, sfReplaceAttribute, sfTerminate, sfTerminatedWith, sfTerminateQuietlyWith, sfValues

Methods inherited from interface org.smartfrog.sfcore.prim.Liveness

sfPing

Methods inherited from interface org.smartfrog.sfcore.reference.RemoteReferenceResolver

sfResolve, sfResolve, sfResolveHere, sfResolveHere, sfResolveParent

Methods inherited from interface org.smartfrog.sfcore.reference.RemoteReferenceResolverHelper

sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolve, sfResolveWithParser

Methods inherited from interface org.smartfrog.sfcore.prim.Diagnostics

sfDiagnosticsReport

Constructor Detail

CPUMonitorImpl

public CPUMonitorImpl()
               throws java.rmi.RemoteException

Throws:

java.rmi.RemoteException

Method Detail

sfDeploy

public void sfDeploy()
              throws SmartFrogException,
                     java.rmi.RemoteException

Description copied from class: PrimImpl

Called after instantiation for deployment purposes. Heart monitor is started and if there is a parent the deployed component is added to the heartbeat. Subclasses can override to provide additional deployment behavior.

Specified by:

sfDeploy in interface Prim

Overrides:

sfDeploy in class PrimImpl

Throws:

SmartFrogException - error while deploying

java.rmi.RemoteException - In case of network/rmi error

sfStart

public void sfStart()
             throws SmartFrogException,
                    java.rmi.RemoteException

Description copied from class: PrimImpl

Can be called to start components. Subclasses should override to provide functionality Do not block in this call, but spawn off any main loops!

Specified by:

sfStart in interface Prim

Overrides:

sfStart in class PrimImpl

Throws:

SmartFrogException - failure while starting

java.rmi.RemoteException - In case of network/rmi error

sfTerminateWith

public void sfTerminateWith(TerminationRecord tr)

Description copied from class: PrimImpl

Provides hook for subclasses to implement useful termination behavior. Deregisters component from local process compound (if ever registered)

Overrides:

sfTerminateWith in class PrimImpl

Parameters:

tr - termination status

getData

public int getData()
            throws java.rmi.RemoteException

Description copied from interface: DataSource

Returns an int containing the data

Specified by:

getData in interface DataSource

Returns:

DOCUMENT ME!

Throws:

java.rmi.RemoteException

getCurrent

public int getCurrent()
               throws java.rmi.RemoteException

Specified by:

getCurrent in interface CPUMonitor

Throws:

java.rmi.RemoteException

getAverageLastMinute

public int getAverageLastMinute()
                         throws java.rmi.RemoteException

Specified by:

getAverageLastMinute in interface CPUMonitor

Throws:

java.rmi.RemoteException

getAverageLast10Minutes

public int getAverageLast10Minutes()
                            throws java.rmi.RemoteException

Specified by:

getAverageLast10Minutes in interface CPUMonitor

Throws:

java.rmi.RemoteException

getAverageLast30Minutes

public int getAverageLast30Minutes()
                            throws java.rmi.RemoteException

Specified by:

getAverageLast30Minutes in interface CPUMonitor

Throws:

java.rmi.RemoteException

getAverageLast60Minutes

public int getAverageLast60Minutes()
                            throws java.rmi.RemoteException

Specified by:

getAverageLast60Minutes in interface CPUMonitor

Throws:

java.rmi.RemoteException

updateFigures

public void updateFigures(int newMin)

run

public void run()

Specified by:

run in interface java.lang.Runnable