Draft: Changes from FlexTrade

[philipwhiuk]

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Change summary:

• Jacoco & Surefire build data
• Introduction of an interface IMessage to allow alternate implementations of Message
• Log handlers for InvalidMessage and Disconnects
• Exposing creationTimeCalendar object for reduced GC
• Allowing Throwables (e.g. OOMs) to propogate
• Adding DataDictionaryProxy for dynamically reloading a session's Dictionary
• Re-exposing field ordering information from DataDictionary objects
• ValidationSettings separation
• Providing the value when rejecting a message for a bad field value
• Standardising error reasons
• Introduction of SendResult to properly clarify persistence status of messages
• Adding TimePeriods as a complex session timing mechanism
• Adding UseFirstTagAsGroupDelimiter to handle FIX engines that don't behave in a FIX-spec compliant mechanism
• Adding OnlyAllowSeenOrKnownFieldsInLastGroup to control whether to fold unknown tags into the last group or not
• Adding WeakParsingMode to add an alternative parsing mechanism to handle Groups without a DataDictionary
• Adding Fix41ResendRequestAsFix42 to deal with FIX implementations that use FIX.4.2 semantics in a FIX.4.1 session
• Adding UseDictionaryOrdering to apply the DataDictionary's ordering when parsing a message
• Adding MaxMessagesQueuedWhilePendingResend to prevent OOMs by capping the number of messages retrieved at once in response to a resend request
• Adding MaxResendBatchRetrievalSize similarly
• Adding UseDataDictionaryForMsgTypes to allow you to use the DataDictionary only on selected message types
• Adding RejectMessageOutOfTime to allow you to control whether to send a reject in response to a late message
• Deprecated Session#reset in favour of one that provides a reason to give to the Logout
• Adding IgnoredGarbledMessageListener to provide the app information about messages discarded
• Stopped Session generating rejects in response to rejects - can lead to a reject-loop
• Reworked the resend logic
• Added notifications for duplicate resend requests
• Added sendNoChange to allow the app to ensure tag 43 is set
• Added sendExact method to allow the app even more control
• Added the date-time to the log message when resettting to aid debugging issues
• Changed SessionID to ignore 'SubIDs' # Internal decision
• Added a SimpleMessage class that doesn't do much structural handling
• Removed Sleepycat implementation
• Moved calls to create acceptors separate to the starting of them
• Improved the logging surrounding multiple/unknown sessions
• Improved CompositeLog testing.
• Removed some internet-required tests
• Added library to allow 'random-value' testing

Outstanding work:

• Rebase against master
• Split into separate reviews based on feedback

[chrjohn]

Woah ;)