Package de.quantummaid.eventmaid.messagebus.statistics

Class MessageBusStatistics

java.lang.Object

de.quantummaid.eventmaid.messagebus.statistics.MessageBusStatistics

public final class MessageBusStatistics
extends Object

A collection of statistics about the messages, that have been processed up to the point the statistics were requested.

The timestamp defines the approximate time, when the statistics were queried. But no locking during the request is performed. So the values should be seen as approximations.

The value of getAcceptedMessages() defines the number of messages the MessageBus has been accepted without an exception. getQueuedMessages() returns, how many messages have been accepted, but due to not enough resources have been queued. The processing of queued messages will automatically be continued, when resources become available and the MessageBus is not closed before. getBlockedMessages() and getForgottenMessages() relate to the results of Filters being applied. Messages, that have been blocked by a Filter stop their propagation through the MessageBus. Forgotten messages are those messages, that have not explicitly marked as passed or blocked by a Filter. Usually they are the result of a bug inside on of the Filters. Once a message passed all Filters the final Action is executed. The getSuccessfulMessages() returns the number of messages, that have been delivered without exceptions. In case of an exception during the delivery, the message is marked as failed. getFailedMessages() returns the amount of those messages.

See Also:

EventMaid Documentation

Constructor Summary

Constructors

Constructor	Description
MessageBusStatistics()

Method Summary

Modifier and Type	Method	Description
BigInteger	getAcceptedMessages()
BigInteger	getBlockedMessages()
BigInteger	getFailedMessages()
BigInteger	getForgottenMessages()
BigInteger	getQueuedMessages()
BigInteger	getSuccessfulMessages()
Date	getTimestamp()
static MessageBusStatistics	messageBusStatistics(Date timestamp, BigInteger acceptedMessages, BigInteger successfulMessages, BigInteger failedMessages, BigInteger blockedMessages, BigInteger forgottenMessages, BigInteger queuedMessages)

Methods inherited from class java.lang.Object

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

Constructor Detail

MessageBusStatistics

public MessageBusStatistics()

Method Detail

messageBusStatistics

public static MessageBusStatistics messageBusStatistics(Date timestamp,
                                                        BigInteger acceptedMessages,
                                                        BigInteger successfulMessages,
                                                        BigInteger failedMessages,
                                                        BigInteger blockedMessages,
                                                        BigInteger forgottenMessages,
                                                        BigInteger queuedMessages)

getTimestamp

public Date getTimestamp()

getAcceptedMessages

public BigInteger getAcceptedMessages()

getSuccessfulMessages

public BigInteger getSuccessfulMessages()

getFailedMessages

public BigInteger getFailedMessages()

getBlockedMessages

public BigInteger getBlockedMessages()

getForgottenMessages

public BigInteger getForgottenMessages()

getQueuedMessages

public BigInteger getQueuedMessages()