Class OperationsTracker

java.lang.Object

com.loomcache.server.metrics.OperationsTracker

public class OperationsTracker
extends Object

Tracks all cache operations with type, latency, and success/failure status. Maintains sliding window counters for throughput and latency percentile calculation.

Thread-safe using ReentrantReadWriteLock.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	OperationsTracker.LatencyPercentiles	Latency percentiles record.
static final record	OperationsTracker.OperationRecord	Operation record.
static enum	OperationsTracker.OperationType	Operation types.
static enum	OperationsTracker.TimeWindow	Sliding window time ranges.

Constructor Summary

Constructors

Constructor	Description
OperationsTracker()	Create a new OperationsTracker.

Method Summary

Modifier and Type	Method	Description
void	clear()	Clear all recorded operations.
double	getErrorRate(OperationsTracker.TimeWindow window)	Get error rate for a time window (0.0 to 1.0).
OperationsTracker.LatencyPercentiles	getLatencyPercentiles(OperationsTracker.TimeWindow window)	Get latency percentiles for a time window.
int	getOperationCount()	Get total number of recorded operations.
Map<OperationsTracker.OperationType, Long>	getOperationCountsByType(OperationsTracker.TimeWindow window)	Get operation count by type for a time window.
List<OperationsTracker.OperationRecord>	getOperations(OperationsTracker.TimeWindow window)	Get all operations within a time window.
double	getThroughput(OperationsTracker.TimeWindow window)	Get throughput for a time window in operations per second.
void	recordOperation(OperationsTracker.OperationType type, String dataStructure, long latencyNs, boolean success)	Record an operation.

Methods inherited from class Object

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

Constructor Details

OperationsTracker

public OperationsTracker()

Create a new OperationsTracker.

Method Details

recordOperation

public void recordOperation(OperationsTracker.OperationType type,
 String dataStructure,
 long latencyNs,
 boolean success)

Record an operation.

Parameters:

type - the operation type

dataStructure - the data structure name

latencyNs - the operation latency in nanoseconds

success - whether the operation succeeded

getThroughput

public double getThroughput(OperationsTracker.TimeWindow window)

Get throughput for a time window in operations per second.

Parameters:

window - the time window

Returns:

operations per second

getLatencyPercentiles

public OperationsTracker.LatencyPercentiles getLatencyPercentiles(OperationsTracker.TimeWindow window)

Get latency percentiles for a time window.

Parameters:

window - the time window

Returns:

latency percentiles in milliseconds

getErrorRate

public double getErrorRate(OperationsTracker.TimeWindow window)

Get error rate for a time window (0.0 to 1.0).

Parameters:

window - the time window

Returns:

error rate

getOperationCountsByType

public Map<OperationsTracker.OperationType, Long> getOperationCountsByType(OperationsTracker.TimeWindow window)

Get operation count by type for a time window.

Parameters:

window - the time window

Returns:

map of operation type to count

clear

public void clear()

Clear all recorded operations.

getOperationCount

public int getOperationCount()

Get total number of recorded operations.

Returns:

operation count

getOperations

public List<OperationsTracker.OperationRecord> getOperations(OperationsTracker.TimeWindow window)

Get all operations within a time window.

Parameters:

window - the time window

Returns:

list of operations