MQSeries.net :: View topic - issue : To set Filename alongwith MQRFH2 Header and msg data

vinayanshul · Posted: Thu Mar 03, 2016 6:29 am Post subject:

Hi All,

I have requirement to set "FileName" with RFh2 header and append with message data like below output, How to achieve this using Java MQ or JMS Programming? I can add the filename by setNameValueString , but it doesn't work at client side

Error Msg is related with : rfhStructLength ,
We got error message at client side:
Failure in BridgeMQSeries.parseMQRFHMessage()rfhStructLength not large enough to handle fileName value

Output Should look like -->

RFH ......Γ▄..."Â Â Â ■MQSTR .......╕...@ STMT_20151029150003_1169709901.pdf.................Γp%PDF-1.5

--------DATA OUTPUT---On MQ8 - Message Browser----------

00000 52 46 48 20 00 00 00 02--00 01 AC 8C 00 00 02 22 |RFH ......Â¼Ã®..."|
00010 FF FF FF FE 4D 51 53 54--52 20 20 20 00 00 00 00 |Â Â Â ■MQSTR ....|
00020 00 00 04 B8 00 00 00 30--53 54 4D 54 5F 32 30 31 |...╕...0STMT_201|
00030 36 30 31 33 30 30 39 31--32 32 31 5F 31 30 32 32 |60130091221_1022|
00040 34 35 30 31 30 31 2E 70--64 66 00 00 00 00 00 00 |450101.pdf......|
00050 00 00 00 00 00 00 00 00--00 01 AC 30 25 50 44 46 |..........Â¼0%PDF|
00060 2D 31 2E 35 0D 0A 25 B5--B5 B5 B5 0D 0A 31 20 30 |-1.5
.%╡╡╡╡
.1 0|
---------------------------------------------------------------------------
Tried 2 approached so far, but didn't get luck yet,
1) Using JMS Programming - use header.setNameValueString ..
String fName_without_dir = path.getFileName().toString(); // get File Name
while(fName_without_dir.getBytes().length % 4 != 0) { // for changing the file length with multiplication of 4
fName_without_dir += " ";
}
//+++++++++++++++++++++++++++++++++++++
// 1st way - Simply setting the MQRFH Header â€“ with MQSTR format and File Name
MQRFH header = new MQRFH();
header.setFormat("MQSTR");
header.setNameValueString(fName_without_dir); // set the header name â€“ as File Name
ByteArrayOutputStream out = new ByteArrayOutputStream ();
header.write (new DataOutputStream (out),MQConstants.MQENC_NATIVE, 819); // WMQConstants.WMQ_ENCODING_NATIVE, 819);
byte[] bytes = out.toByteArray ();
byteResponseMessage.writeBytes(bytes);

//byte[] fname = fName_without_dir.getBytes("UTF-8"); // may also add file name into session â€“ bytemessage, if not setting file name above - heder.setNameValueString..
//byteResponseMessage.writeBytes(fname);
//+++++++++++++++++++++++++++++++++++++
// 2nd way - Setter of JMS message property, Format, Encoding, Char Set, etc..
byteResponseMessage.setStringProperty("JMS_IBM_Format", "MQSTR");
byteResponseMessage.setIntProperty("JMS_IBM_Encoding", MQConstants.MQENC_NATIVE); // Encoding - MQConstants.MQENC_REVERSED , value is 546
byteResponseMessage.setIntProperty("JMS_IBM_Character_Set", 1208); // Char Set â€“ 437
byteResponseMessage.setIntProperty("JMS_IBM_PutApplType", 11);
// User setting â€“ Can also set FileName with header, find the attached document
// byteResponseMessage.setStringProperty("FILENAME", fName_without_dir);
// write message into bytes bytemessage
byteResponseMessage.setJMSDeliveryMode(DeliveryMode.PERSISTENT); // for persistent message
byteResponseMessage.writeBytes(bArray);
log.debug("Printing IncomingMessage ::::::::::::::::::" + byteResponseMessage);
send.send(byteResponseMessage); // send byteResponseMessage to JMS Destination Q

2) Using WSMQ API
Path path = Paths.get(newFileName);
byte[] bArray = fileByteReader(path);
String fName_without_dir = path.getFileName().toString();
int filelength = fName_without_dir.length();
//byte[] s = fName_without_dir.getBytes("UTF-8");

while(fName_without_dir.getBytes().length % 4 != 0) { // for changing the file length with multiplication of 4
fName_without_dir += " ";
}
int rfhStrucLength;
rfhStrucLength =+ fName_without_dir.getBytes().length;

MQMessage mqsMsg = new MQMessage();
mqsMsg.format = MQConstants.MQFMT_STRING ;//"MQSTR";
// mqsMsg.format = MQC.MQFMT_RF_HEADER; // Msg Format
// mqsMsg.format = MQC.MQFMT_; // Msg Format
mqsMsg.feedback = MQC.MQFB_NONE;
mqsMsg.messageType = MQC.MQMT_DATAGRAM;
mqsMsg.writeString(MQC.MQRFH_STRUC_ID); // StrucId
mqsMsg.writeInt4(MQC.MQRFH_VERSION_1); // Version
// mqsMsg.writeLong(MQC.MQRFH_STRUC_LENGTH_FIXED_2 + filelength + 4); // MQRFH_STRUC_LENGTH_FIXED_2 â€“ is 36 char fixed
mqsMsg.writeLong(rfhStructLenght);
mqsMsg.writeInt4(546); // Encoding - MQC.MQENC_NATIVE
mqsMsg.writeInt4(437); // CodedCharacterSetId - MQC.MQCCSI_DEFAULT
mqsMsg.writeString(MQC.MQFMT_STRING); // Format (content) â€“ â€œMQSTR â€œ
mqsMsg.writeInt4(MQC.MQRFH_NO_FLAGS); // Flags
mqsMsg.writeInt4(1208); // NameValueCCSID = UTF-8
mqsMsg.writeInt4(filelength);
mqsMsg.writeString(fName_without_dir);

mqsMsg.write(bArray, 0, bArray.length);
int len = mqsMsg.getMessageLength();
System.out.println("len of msg = " + len);
inputQ.put(mqsMsg, pmo);

And my output looks like, Where able to set the Header but somehow, Filename is not getting distinguish/read at client side, As I feel, here I require some ASCII char to separate Filename between header and Data ,
My Output -->
<RFH ..........."....>
<MQSTR ...........0>
<STMT_20160130091220_>
<1022456501.pdf >
<PDF-1.5>

Kindly suggest me where, Am I wrong with above code, while setting the FileName ?
Thanks in advance.