Steps to migrate from the previous version of Spectra adapter to version 1.2

MOEX has updated the specification for Spectra market (link to the article) to version 1.2

Support of Spectra v.1.2 has been introduced in the Spectra adapter in FIX Antenna 2.15

1. Update FIX Antenna to version 2.15

2. Update Spectra adapter configuration files: templates.xml, fixdic50sp2spectra.xml, configuration.xml

3. Fix InstrumentListener::onSnapshot callback in your code according to the example above

4. Rebuild your application

Changes in B2BITS FIX Antenna

1. Updated configuration files

   File	Description	Location

   File	Description	Location
   templates.xml	FAST template used to decode message	Official ftp: ftp://ftp.moex.com/pub/FAST/Spectra/test/ files templates.xml in FIX Antenna package: <FixAntenna_distribution_package>\samples\SpectraClient\bin\templates.xml
   fixdic50sp2spectra.xml	FIX dictionary used to map decoded message to FIX message	in FIX Antenna package: <FixAntenna_distribution_package>\samples\SpectraClient\bin\fixdic50sp2spectra.xml
   configuration.xml	Feed configuration for test environment	in FIX Antenna package: <FixAntenna_distribution_package>\samples\SpectraClient\bin\configuration.xml
   Note

   The connections configuration file for spectra's test feeds <FixAntenna_distribution_package>\samples\SpectraClient\bin\configuration.xml can be obsolete in the package. 
   The newest one can be obtained from the official MOEX FTP: ftp://ftp.moex.com/pub/FAST/Spectra/test/ files fastgate.xml or configuration.xml 

2. Change in Adapter API to pass all fragments of a fragmented snapshot in a single callback:

   //old version void InstrumentListener::onSnapshot( SpectraSubscriptionItem const& subsItem, Engine::FIXMessage const* msg ) { applySnapshot(msg); } //new version void InstrumentListener::onSnapshot( SpectraSubscriptionItem const& subsItem, Engine::FIXMessage const* const* msgs, size_t snapshotsCount) { for(size_t i = 0; i < snapshotsCount; ++i) { applySnapshot(msgs[i]); //Order Book is in inconsistent state until the last message of msgs[] is applied } }

3. The Spectra client sample was updated to use new Spectra adapter
   see <FixAntenna_distribution_package>\samples\SpectraClient

Steps to migrate from the version 1.2 of Spectra adapter to version 1.2.3

1. Update Spectra adapter templates.xml configuration file in your application from the official MOEX ftp

2. Update Spectra adapter configuration.xml configuration file in your application from the official MOEX ftp

Steps to migrate from the version 1.3.2 of Spectra adapter to version 1.4.2

1. Update Spectra adapter templates.xml configuration file in your application from the official MOEX ftp

2. Update Spectra adapter fixdic50sp2spectra.xml configuration file in your application from this link:  or get it from the recent FIX Antenna C++ 2.20.2 package.

Changes in B2BITS FIX Antenna

• Updated Spectra adapter dictionary fixdic50sp2spectra.xml regarding the new templates.xml

• Added support of Sequence Reset messages.

  On a Sequence Reset message, a recovery procedure will occur. For more information please refer to the article "How MOEX Spectra Market Data Adapter reacts on Sequence Reset message".