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Interface

Description

LogActor

Actor that is requesting the log to be performedwill perform the logging.

MessageStatusLogger

Entity that wishes to provide log statements.

LogSubject

Subject of the logging .

LogMessage MessageStatusLoggerFactory

Factory to generate MSLoggersLogMessages.

RootMessageStatusLogger RootMessageLogger

Root logger that performs logging.

RawMessageLogger

Wrapper for object that actually performs the logging.

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Implementation of the Actors

Class

Description

ConnectionActor AMQPActor

Responsible for providing data about the Connection when logging.

ManagementConnectionActor ManagementActor

Responsible for providing data about the Management Connection when logging.

Implementation of the

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LogSubject

Each of these _MessageStatusLogger_s will be repsonsible for the correct formatting of the the Logging Entity detail according to the format design.

Class

Description

ConnectionMessageStatusLogger ConnectionLogSubject

Logger responsible for the Connection format.

ChannelMessageStatusLogger ChannelLogSubject

Logger responsible for the Channel format.

QueueMessageStatusLogger QueueLogSubject

Logger responsible for the Queue format.

ExchangeMessageStatusLogger ExchangeLogSubject

Logger responsible for the Exchange format.

BindingMessageStatusLogger BindingLogSubject

Logger responsible for the Binding format.

SubscriptionMessageStatusLogger SubscriptionLogSubject

Logger responsible for the subscription format.

MessageStoreMessageStatusLogger MessageStoreLogSubject

Logger responsible for the MessageStore format.

RootMessageStatusLoggerImpl RootMessageLoggerImpl

Base logger that performs the final message formatting before logging.

MessageStatusLoggerFactoryImpl LogMessageFactoryImpl

Factory to create the above LoggersLogMessages.

Logging

Class

Description

Log4jRawMessageLogger

Wrapper to use log4j as the output mechanism.

TestRawMessageLogger

Wrapper that provides an inspectable log for testing.

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Class

Description

BrokerLogMessages

A static class that contains accessors to the various parametrised log messages.

Psuedo-Code Example

Code Block
java
java


// logActor is retreived from the ThreadLocal
// a logMessage of type logMessage (with parms) is then requested for the specified subject.
logActor.logMessage(logSubject, LogMessage(parms))

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instance of LogActor{

RootLogger logger = ...getRootLogger();L

  public void logMessage(LogSubject subject, LogMessage message)
  {
     if (logger.isMessageEnabled(this, subject)
     {
        // FormatMessage in to :
        // MESSAGE [ this.toString() ] [ subject.toString() ] <messageID> : <message value>
        logger.logMessage(FormatMessage(this, subject, message));
     }	
  }
}

How to provide fixed log messages

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