This sample builds on sample 1 to add a header record to the CSV message. In the input message there is a single header record followed by a single repeating comma separated record. This is parsed using the sample message set and written as an XML message.
This topic includes instructions for running the sample. It also includes an example of an input test message and a corresponding expected output message, so that you can confirm that the sample has worked.
For a more detailed explanation of the message model used in this sample, refer to Exploring the Comma Separated Value (CSV) sample.
The test message used in running this sample is based on the following format:
2005-04-01,X123456IB7,customer details<CRLF>
Bob,Dyson,1 Desolation Row,Orlando,FL,32802,HYT-457-AX<CRLF>
Jimmy,Pace,1002 Misty Mountain Drive,New York,NY,10001,ADU-239-BX<CRLF>
Ralf,McCartney,67 Penny Lane,Las Vegas,NV,89125,JUI-854-CF<CRLF>
Elvis,John,3 Yellow Brick Road,Chicago,IL,60699,GGY-118-AS<CRLF>
Rick,Clayton,461 Ocean Boulevard,Miami,FL,33101,LOP-212-TY
<CRLF> represents the characters with ASCII hex code points x'0D' and x'0A'.
This sample uses the message flow CSV2XML. This message flow contains many input nodes but this sample uses the input node with the queue CSV2XML.IN2. The message flow passes the message through a Compute node that changes the format to XML and writes the message out. This causes the CSV message to be parsed into a logical tree and then written in XML format. The output XML message shows the logical structure of the message that was parsed.
To run the sample:
The message flow parses the CSV message and writes out the same logical message in XML. The output message is put to the CSV2XML.OUT queue.
Now try transforming from XML to CSV.
The message flow parses the XML message and writes out the same logical message in CSV. The output message is put to the XML2CSV.OUT queue.
If all the steps are successful then the sample is complete.
Now take a look at the message set project and the explanation of this message definition in Exploring the Comma Separated Value (CSV) sample.
The expected output XML message is:
<?xml version="1.0"?>
<CSV_2>
<header>
<requestDate>2005-04-01</requestDate>
<requestID>X123456IB7</requestID>
<requestType>customer details</requestType>
</header>
<customer>
<firstname>Bob</firstname>
<lastname>Dyson</lastname>
<streetaddress>1 Desolation Row</streetaddress>
<cityname>Orlando</cityname>
<statecode>FL</statecode>
<postcode>32802</postcode>
<referencecode>HYT-457-AX</referencecode>
</customer>
<customer>
<firstname>Jimmy</firstname>
<lastname>Pace</lastname>
<streetaddress>1002 Misty Mountain Drive</streetaddress>
<cityname>New York</cityname>
<statecode>NY</statecode>
<postcode>10001</postcode>
<referencecode>ADU-239-BX</referencecode>
</customer>
<customer>
<firstname>Ralf</firstname>
<lastname>McCartney</lastname>
<streetaddress>67 Penny Lane</streetaddress>
<cityname>Las Vegas</cityname>
<statecode>NV</statecode>
<postcode>89125</postcode>
<referencecode>JUI-854-CF</referencecode>
</customer>
<customer>
<firstname>Elvis</firstname>
<lastname>John</lastname>
<streetaddress>3 Yellow Brick Road</streetaddress>
<cityname>Chicago</cityname>
<statecode>IL</statecode>
<postcode>60699</postcode>
<referencecode>GGY-118-AS</referencecode>
</customer>
<customer>
<firstname>Rick</firstname>
<lastname>Clayton</lastname>
<streetaddress>461 Ocean Boulevard</streetaddress>
<cityname>Miami</cityname>
<statecode>FL</statecode>
<postcode>33101</postcode>
<referencecode>LOP-212-TY</referencecode>
</customer>
</CSV_2>