Package com.rabbitmq.client.impl

Class AbstractMetricsCollector

java.lang.Object

com.rabbitmq.client.impl.AbstractMetricsCollector

All Implemented Interfaces:

MetricsCollector

Direct Known Subclasses:

MicrometerMetricsCollector, StandardMetricsCollector

public abstract class AbstractMetricsCollector
extends Object
implements MetricsCollector

Base class for MetricsCollector. Implements tricky logic such as keeping track of acknowledged and rejected messages. Sub-classes just need to implement the logic to increment their metrics. Note transactions are not supported (see MetricsCollector.

See Also:

MetricsCollector

Constructor Summary

Constructors

Constructor	Description
AbstractMetricsCollector()

Method Summary

Modifier and Type	Method	Description
void	basicAck(Channel channel, long deliveryTag, boolean multiple)
void	basicCancel(Channel channel, String consumerTag)
void	basicConsume(Channel channel, String consumerTag, boolean autoAck)
void	basicNack(Channel channel, long deliveryTag)
void	basicPublish(Channel channel)
void	basicReject(Channel channel, long deliveryTag)
void	cleanStaleState()	Clean inner state for close connections and channels.
void	closeChannel(Channel channel)
void	closeConnection(Connection connection)
void	consumedMessage(Channel channel, long deliveryTag, boolean autoAck)
void	consumedMessage(Channel channel, long deliveryTag, String consumerTag)
protected abstract void	decrementChannelCount(Channel channel)	Decrements channel count.
protected abstract void	decrementConnectionCount(Connection connection)	Decrements connection count.
protected abstract void	incrementChannelCount(Channel channel)	Increments channel count.
protected abstract void	incrementConnectionCount(Connection connection)	Increments connection count.
protected abstract void	markAcknowledgedMessage()	Marks the event of an acknowledged message.
protected abstract void	markConsumedMessage()	Marks the event of a consumed message.
protected abstract void	markPublishedMessage()	Marks the event of a published message.
protected abstract void	markRejectedMessage()	Marks the event of a rejected message.
void	newChannel(Channel channel)
void	newConnection(Connection connection)

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractMetricsCollector

public AbstractMetricsCollector()

Method Detail

newConnection

public void newConnection(Connection connection)

Specified by:

newConnection in interface MetricsCollector

closeConnection

public void closeConnection(Connection connection)

Specified by:

closeConnection in interface MetricsCollector

newChannel

public void newChannel(Channel channel)

Specified by:

newChannel in interface MetricsCollector

closeChannel

public void closeChannel(Channel channel)

Specified by:

closeChannel in interface MetricsCollector

basicPublish

public void basicPublish(Channel channel)

Specified by:

basicPublish in interface MetricsCollector

basicConsume

public void basicConsume(Channel channel,
                         String consumerTag,
                         boolean autoAck)

Specified by:

basicConsume in interface MetricsCollector

basicCancel

public void basicCancel(Channel channel,
                        String consumerTag)

Specified by:

basicCancel in interface MetricsCollector

consumedMessage

public void consumedMessage(Channel channel,
                            long deliveryTag,
                            boolean autoAck)

Specified by:

consumedMessage in interface MetricsCollector

consumedMessage

public void consumedMessage(Channel channel,
                            long deliveryTag,
                            String consumerTag)

Specified by:

consumedMessage in interface MetricsCollector

basicAck

public void basicAck(Channel channel,
                     long deliveryTag,
                     boolean multiple)

Specified by:

basicAck in interface MetricsCollector

basicNack

public void basicNack(Channel channel,
                      long deliveryTag)

Specified by:

basicNack in interface MetricsCollector

basicReject

public void basicReject(Channel channel,
                        long deliveryTag)

Specified by:

basicReject in interface MetricsCollector

cleanStaleState

public void cleanStaleState()

Clean inner state for close connections and channels. Inner state is automatically cleaned on connection and channel closing. Thus, this method is provided as a safety net, to be externally called periodically if closing of resources wouldn't work properly for some corner cases.

incrementConnectionCount

protected abstract void incrementConnectionCount(Connection connection)

Increments connection count. The connection object is passed in as complementary information and without any guarantee of not being null.

Parameters:

connection - the connection that has been created (can be null)

decrementConnectionCount

protected abstract void decrementConnectionCount(Connection connection)

Decrements connection count. The connection object is passed in as complementary information and without any guarantee of not being null.

Parameters:

connection - the connection that has been closed (can be null)

incrementChannelCount

protected abstract void incrementChannelCount(Channel channel)

Increments channel count. The channel object is passed in as complementary information and without any guarantee of not being null.

Parameters:

channel - the channel that has been created (can be null)

decrementChannelCount

protected abstract void decrementChannelCount(Channel channel)

Decrements channel count. The channel object is passed in as complementary information and without any guarantee of not being null.

Parameters:

channel -

markPublishedMessage

protected abstract void markPublishedMessage()

Marks the event of a published message.

markConsumedMessage

protected abstract void markConsumedMessage()

Marks the event of a consumed message.

markAcknowledgedMessage

protected abstract void markAcknowledgedMessage()

Marks the event of an acknowledged message.

markRejectedMessage

protected abstract void markRejectedMessage()

Marks the event of a rejected message.