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| setting MQRFH2 Header in Java |
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| patb23 |
 Posted: Wed Oct 25, 2006 7:29 am Post subject: setting MQRFH2 Header in Java |
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Newbie
Joined: 25 Oct 2006
Posts: 4
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Hi,
I Want to set MQRFH2 header for outbound message.
I am trying to set JMS header (equivalent to setStringProperty of JMS API). Based on the examples, found in this forum, I am setting the header like shown below. I notioce that when we receivbe the Message, the property appears to be appended to the message instead of appearing as an Header.
Could anyone let me know, where am I making a mistake?
PS: I am new to MQ Sereis.
ostream.writeChars(MQC.MQRFH_STRUC_ID);//StrucID
ostream.writeInt(MQC.MQRFH_VERSION_2);//Version
ostream.writeInt(strucLength+ headerContent.length() );//StrucLength
ostream.writeInt(MQC.MQENC_NATIVE);//Encoding
ostream.writeInt(MQC.MQCCSI_DEFAULT);//CodedCharSetID
ostream.writeChars(MQC.MQFMT_STRING);//Format
ostream.writeInt(MQC.MQRFH_NO_FLAGS);//Flags
ostream.writeInt(1208);//NameValueCCSID
ostream.writeInt(headerContent.toString().getBytes().length);//NameValueLength
ostream.writeChars(headerContent.toString() ); //NameValueData
ostream.flush();
rfh2Header = bstream.toByteArray();
message.write(rfh2Header) |
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| Vitor |
| Posted: Wed Oct 25, 2006 7:31 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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My Java's weak but check out the Java manual. The MQRFH2 is mapped to/from a JMS header automatically by the MQ Java classes. You actually have to set a parameter (TARGCLIENT?) to stop an RFH2 being added.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| jefflowrey |
| Posted: Wed Oct 25, 2006 7:37 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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MQ headers work like this. The MQMD is always there, and always distinct from the rest of the headers. Everything else is in the Body of the message (the buffer). The Format field of the MQMD indicates if the Body starts with a Header or not - in your case the Format field of the MQMD should indicate an MQRFH2. Then the format of each Header indicates the contents of the NEXT section. So if you only have an MQRFH2, then the Format field of the MQRFH2 should be MQFMT_STRING or whatever.
Each section (header or message data) in the Body is separated from the next section by a blank line.
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I am *not* the model of the modern major general. |
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| fjb_saper |
| Posted: Wed Oct 25, 2006 1:07 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Are you trying to handle a JMS header in java base?
Don't do that. Switch to JMS.
Enjoy 
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