FMXML handler

Introduction

FMXML handler is a FIXEdge component used in BL configurations. Its primary task to convert any FIX message (except MsgType(35)=n) to XML representation. In case of 35=n messages FMXML handler does the reverted conversation. There is an example of a FIX message and the result of such conversation in the following table:

FIX 4.4 representation

FMXML representation

8=FIX.4.4
9=0332
35=D
49=FTRDRETD0
56=IDEALRETD0
43=N
52=20131118-10:21:56
97=N
115=NFSC
2007=e6a85d48-81df-40c3-a54c-23b2aa85191b:RETAILEQUITY
21=2
22=1
48=0456BC5L1
54=1
38=1000
40=1
44=0
59=1
1=Account10
2002=CH1
2005=12345
2000=Act10Name
2001=N
2003=C1TD
11=e6a85d48-81df-40c3-a54c-23b2aa85191b
60=20131118-05:21:46
2008=G12345
2011=Rep1

<FIXMessage>
	<f8>FIX.4.4</f8>
	<f35>D</f35>
	<f49>FTRDRETD0</f49>
	<f56>IDEALRETD0</f56>
	<f43>N</f43>
	<f52>20131118-10:21:56</f52>
	<f97>N</f97>
	<f115>NFSC</f115>
	<f2007>e6a85d48-81df-40c3-a54c-23b2aa85191b:RETAILEQUITY</f2007>
	<f21>2</f21>
	<f22>1</f22>
	<f48>0456BC5L1</f48>
	<f54>1</f54>
	<f38>1000</f38>
	<f40>1</f40>
	<f44>0</f44>
	<f59>1</f59>
	<f1>Account10</f1>
	<f2002>CH1</f2002>
	<f2005>12345</f2005>
	<f2000>Act10Name</f2000>
	<f2001>N</f2001>
	<f2003>C1TD</f2003>
	<f11>e6a85d48-81df-40c3-a54c-23b2aa85191b</f11>
	<f60>20131118-05:21:46</f60>
	<f2008>G12345</f2008>
	<f2011>Rep1</f2011>
</FIXMessage>

Typical use case

Here is a sequence diagram for a typical FMXML's use case.

There are three main components in it:

FIX session. FIXEdge receives FIX messages from it (say FIX messages with 35=D)
FMXML handler. FIXEdge converts source messages to XML and wrap them into 35=n messages.
IBM MQ Transport adapter. FIXEdge sends XML data wrapped into 35=n messages to an external messaging system (IBM WebSphere in this case).

FMXML handler specification

FMXML handler does the following steps on FIX massages

if there is 35=n message in the input of the handler than FMXML to FIX transformation takes place.
in case of other MsgType messages in the input of the handler FIX to FMXML transformation takes place.
standard FIX tags like CheckSum (10), BodyLength(9), MsgSeqNum(34) are ignored during transformations

FMXML format specification

<FIXMessage>
	<!-- FIX tags -->
	<f[tag1]>value1</f[tag1]>
	<f[tag2]>value2</f[tag2]>
	<!-- FIX repeating group -->
	<g[tag3] v="value3">
		<e>
			<f[tag4]>value4</f[tag4]>
		</e>
		<e>
			<f[tag5]>value5</f[tag5]>
		</e>
	</g[tag3]>
</FIXMessage>