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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » LENGTH FUNCTION

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goldym
PostPosted: Tue Mar 13, 2007 7:58 am    Post subject: Reply with quote

Centurion

Joined: 24 Jun 2005
Posts: 116
[quote="goldym"]
jefflowrey wrote:
Read the message as BLOB, ask for the length of InputRoot.BLOB.BLOB and then parse the message as MRM...



Does you know how I would "parse the message as MRM or BLOB" in a java compute node?

I tried just asking for the length and then I was going to Parse as MRM and then insert the length into the length field.

Code:
MbElement blob = root.getFirstElementByPath("BLOB");
MbElement blobData = root.getFirstElementByPath("BLOB/BLOB");
            int i = (int) ((Blob) blobData).length();


but this gave me a ClassCastException.

So I tried bytes to string capture the length and insert it.

Code:
byte[] dataByteArray = (byte[])(blobData.getValue());
String dataString = new String(dataByteArray);
      
int imsgLength = dataString.length();
String smsgLength = String.valueOf(imsgLength);

int ilengthoflength = smsgLength.length();
String smsg = dataString.substring(0,6) + smsgLength + dataString.substring(8);
         
int inewmsgLength = smsg.length();
String snewLength = String.valueOf(inewmsgLength);
                  
String snewmsg = dataString.substring(0,6) + snewLength + dataString.substring(8);
byte[] newdatastring = (byte[])(snewmsg.getBytes());


However I am not sure how I parse the data to BLOB in order to propagate outAssemply? Any ideas?
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goldym
PostPosted: Tue Mar 13, 2007 9:16 am    Post subject: Reply with quote

Centurion

Joined: 24 Jun 2005
Posts: 116
[quote="goldym"]
goldym wrote:
jefflowrey wrote:
Read the message as BLOB, ask for the length of InputRoot.BLOB.BLOB and then parse the message as MRM...



Does you know how I would "parse the message as MRM or BLOB" in a java compute node?

I tried just asking for the length and then I was going to Parse as MRM and then insert the length into the length field.

Code:
MbElement blob = root.getFirstElementByPath("BLOB");
MbElement blobData = root.getFirstElementByPath("BLOB/BLOB");
            int i = (int) ((Blob) blobData).length();


but this gave me a ClassCastException.

So I tried bytes to string capture the length and insert it.

Code:
byte[] dataByteArray = (byte[])(blobData.getValue());
String dataString = new String(dataByteArray);
      
int imsgLength = dataString.length();
String smsgLength = String.valueOf(imsgLength);

int ilengthoflength = smsgLength.length();
String smsg = dataString.substring(0,6) + smsgLength + dataString.substring(8);
         
int inewmsgLength = smsg.length();
String snewLength = String.valueOf(inewmsgLength);
                  
String snewmsg = dataString.substring(0,6) + snewLength + dataString.substring(8);
byte[] newdatastring = (byte[])(snewmsg.getBytes());


However I am not sure how I parse the data to BLOB in order to propagate outAssemply? Any ideas?


resolved

Code:
blobData.setValue(snewmsg.getbytes());
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