Package com.atlassian.confluence.util.profiling

Class NopActivityMonitor

java.lang.Object

com.atlassian.confluence.util.profiling.NopActivityMonitor

All Implemented Interfaces:

ActivityMonitor

@Internal
@ParametersAreNonnullByDefault
public class NopActivityMonitor
extends Object
implements ActivityMonitor

Provides an implementation of the ActivityMonitor that does nothing. Useful if you are in situations (legacy code) that does not have access to the real service.

Since:

5.7

Field Summary

Fields

Modifier and Type	Field	Description
static final NopActivityMonitor	INSTANCE

Method Summary

Modifier and Type	Method	Description
@NonNull Activity	registerStart(String userId, String type, String summary)	Starts tracking an activity using the current thread.
@NonNull Collection<ActivitySnapshot>	snapshotCurrent()	Returns an immutable snapshot of the current activity in the system.

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final NopActivityMonitor INSTANCE

Method Details

registerStart

public @NonNull Activity registerStart(String userId,
 String type,
 String summary)

Description copied from interface: ActivityMonitor

Starts tracking an activity using the current thread. The caller must call Activity.close() on the returned Activity after the activity has completed.

The typical usage is:

 final Activity activity = activityMonitor.registerStart(userId, type, summary);
 try {
     // code to execute
 }
 finally {
     activity.close();
 }
 

Under Java 7, the following is also possible:

 try (Activity activity = activityMonitor.registerStart(userId, type, summary)) {
     // code to execute
 }
 

Specified by:

registerStart in interface ActivityMonitor

Parameters:

userId - the identifier of the user associated with the activity.

type - the type of activity being performed. E.g. web-request

summary - a textual summary of the activity. E.g. /some/url.action

snapshotCurrent

public @NonNull Collection<ActivitySnapshot> snapshotCurrent()

Description copied from interface: ActivityMonitor

Returns an immutable snapshot of the current activity in the system.

Specified by:

snapshotCurrent in interface ActivityMonitor

Returns:

an immutable snapshot of the current activity in the system.