Package org.opensaml.profile.context

Class MetricContext

java.lang.Object

org.opensaml.messaging.context.BaseContext

org.opensaml.profile.context.MetricContext

All Implemented Interfaces:

Iterable<BaseContext>

public final class MetricContext
extends BaseContext

Child context that supplies instructions to the runtime actions about timers to start and stop to measure performance.

Nested Class Summary

Nested classes/interfaces inherited from class org.opensaml.messaging.context.BaseContext

BaseContext.ContextSetNoRemoveIteratorDecorator

Field Summary

Fields

Modifier and Type	Field	Description
private Map<String,String>	counterMap	Map of objects to counter names.
private Multimap<String,com.codahale.metrics.Timer.Context>	timerContextMap	Map of objects to contexts to perform a stop signal.
private Multimap<String,Pair<String,String>>	timerMap	Map of objects to timer names to start and objects to stop the timer.

Constructor Summary

Constructors

Constructor	Description
MetricContext()	Constructor.

Method Summary

Modifier and Type	Method	Description
MetricContext	addCounter(String counterName, String objectId)	Add an object/counter mapping.
MetricContext	addTimer(String timerName, String startId, String stopId)	Add an object/timer mapping.
void	dec(String objectId)	Decrement a counter associated with an object, if any.
Map<String,String>	getCounterMappings()	Get a modifiable map of object/counter associations.
Collection<Pair<String,String>>	getTimerMappings(String objectId)	Get a modifiable collection of timer name / stop object pairs for the supplied start object ID.
void	inc(String objectId)	Increment a counter associated with an object, if any.
void	start(String objectId)	Conditionally starts one or more timers based on the supplied object identifier.
void	stop(String objectId)	Stops any timers associated with the supplied object identifier and removes them from the tracking map.

Methods inherited from class org.opensaml.messaging.context.BaseContext

addSubcontext, addSubcontext, clearSubcontexts, containsSubcontext, createSubcontext, getParent, getSubcontext, getSubcontext, getSubcontext, getSubcontext, iterator, removeSubcontext, removeSubcontext, setParent

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

timerMap

@Nonnull
@NonnullElements
private Multimap<String,Pair<String,String>> timerMap

Map of objects to timer names to start and objects to stop the timer.

The first member is the timer name, the second the object to associate with the timer.

timerContextMap

@Nonnull
@NonnullElements
private Multimap<String,com.codahale.metrics.Timer.Context> timerContextMap

Map of objects to contexts to perform a stop signal.

counterMap

@Nonnull
@NonnullElements
private Map<String,String> counterMap

Map of objects to counter names.

Constructor Detail

MetricContext

public MetricContext()

Constructor.

Method Detail

addTimer

@Nonnull
public MetricContext addTimer(@Nonnull @NotEmpty
                              String timerName,
                              @Nonnull @NotEmpty
                              String startId,
                              @Nonnull @NotEmpty
                              String stopId)

Add an object/timer mapping.

Parameters:

timerName - name of timer

startId - ID of object to start timer with

stopId - ID of object to stop timer

Returns:

this context

getTimerMappings

@Nonnull
@NonnullElements
@Live
public Collection<Pair<String,String>> getTimerMappings(@Nonnull @NotEmpty
                                                              String objectId)

Get a modifiable collection of timer name / stop object pairs for the supplied start object ID.

Parameters:

objectId - the object ID input

Returns:

the collection of associated mappings

addCounter

@Nonnull
public MetricContext addCounter(@Nonnull @NotEmpty
                                String counterName,
                                @Nonnull @NotEmpty
                                String objectId)

Add an object/counter mapping.

Parameters:

counterName - name of counter

objectId - object ID

Returns:

this context

getCounterMappings

@Nonnull
@NonnullElements
@Live
public Map<String,String> getCounterMappings()

Get a modifiable map of object/counter associations.

Returns:

map of counters

start

public void start(@Nonnull @NotEmpty
                  String objectId)

Conditionally starts one or more timers based on the supplied object identifier.

The configured state of the context is used to determine whether, and which, timers to start, further influenced by the runtime state of the system with regard to enabling of metrics.

Parameters:

objectId - ID of the object being timed

stop

public void stop(@Nonnull @NotEmpty
                 String objectId)

Stops any timers associated with the supplied object identifier and removes them from the tracking map.

Parameters:

objectId - ID of the object being timed

inc

public void inc(@Nonnull @NotEmpty
                String objectId)

Increment a counter associated with an object, if any.

Parameters:

objectId - ID of object

dec

public void dec(@Nonnull @NotEmpty
                String objectId)

Decrement a counter associated with an object, if any.

Parameters:

objectId - ID of object