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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » unreadable XML tree when DocType = RootElement

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damianharvey
PostPosted: Wed Jan 14, 2004 6:09 pm    Post subject: unreadable XML tree when DocType = RootElement Reply with quote

Acolyte

Joined: 05 Aug 2003
Posts: 59
Location: Sydney, Australia
We have been given some sample XML messages from our client that they will be passing to us. When I tried to run these through our flows (MsgBrkv5.0) the message would parse ok and in the debugger I could see the tree and it looked fine.

However when I tried to reference a field in ESQL it could not find anything and would assume a null.

I traced the problem back to the fact that the DocType of the XML message was present but without a DTD. eg:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<!DOCTYPE Message>
<Message><Route><Sender>.....etc...etc...

Changing the DocType to anything else (eg. MESSAGE or Massage) or deleting it meant that the tree could be read ok and the flow worked.

Has anyone seen this? Is it logical for the Broker to behave like this when a DTD is not present for 'Message'? How would you treat this even if the DTD did exist? - ie. how would the broker pick up the DTD (given that this is not using the MRM parser)

Thanks,

Damian.
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kirani
PostPosted: Wed Jan 14, 2004 11:55 pm    Post subject: Reply with quote

Jedi Knight

Joined: 05 Sep 2001
Posts: 3779
Location: Torrance, CA, USA
Can you post your ESQL coe where you are trying to refer to this element?
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damianharvey
PostPosted: Thu Jan 15, 2004 11:45 am    Post subject: Reply with quote

Acolyte

Joined: 05 Aug 2003
Posts: 59
Location: Sydney, Australia
Here's the relevant section of ESQL. With the DocType set to 'Message' and no DTD specified the lines referencing InputBody fail.

-----------------------------------------------

CREATE COMPUTE MODULE F01_RI_HANDLER
CREATE FUNCTION Main() RETURNS BOOLEAN
BEGIN
CALL CopyMessageHeaders();
SET OutputLocalEnvironment = InputLocalEnvironment;

DECLARE line_feed BLOB CAST('0A' AS BLOB);

SET OutputRoot.Properties.MessageSet = 'K27R4V0002001';
SET OutputRoot.Properties.MessageType = 'TNT_FLAT_MSG';
SET OutputRoot.Properties.MessageFormat = 'TDS1';

SET OutputRoot.MRM.META_Msg.meta_header = 'MD';
SET OutputRoot.MRM.META_Msg.message_type = 'RI ';
SET OutputRoot.MRM.META_Msg.process_key = InputBody.Message.Route.Sender.Process;
SET OutputRoot.MRM.META_Msg.LF = line_feed;

SET OutputRoot.MRM.TNT_Msg.RI_Msg.record_indicator = 'HH';
SET OutputRoot.MRM.TNT_Msg.RI_Msg.order_type = TRIM(InputBody.Message.ReceivingInstruction.OrderType);
SET OutputRoot.MRM.TNT_Msg.RI_Msg.cust_order_number = TRIM(InputBody.Message.ReceivingInstruction.OrderNo);
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