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	| Java msgflow: EmailOutput node to send binary attachments | « View previous topic :: View next topic » |  
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		  | Author | Message |  
		  | upsidedown | 
			  
				|  Posted: Wed Nov 27, 2013 2:20 am    Post subject: Java msgflow: EmailOutput node to send binary attachments |   |  |  
		  | Newbie
 
 
 Joined: 27 Nov 2013Posts: 2
 
 
 | 
			  
				| Hi everyone, 
 I'm using Message Broker Toolkit Version: 7.0.0, and I'm trying to send an email will a .gzip attachment.
 
 I can attach text files fine, but I don't think I am doing the encoding right for binary files.
 
 
 
   
	| Code: |  
	| .
 .
 .
 
 MbElement Destination = localEnv.createElementAsLastChild(MbElement.TYPE_NAME, "Destination", null);
 MbElement destinationEmail = Destination.createElementAsLastChild(MbElement.TYPE_NAME, "Email", null);
 destinationEmail.createElementAsLastChild(MbElement.TYPE_NAME_VALUE, "SMTPServer", "mailhost.mfil.local:25");
 
 //attachmentElement.createElementAsLastChild(MbElement.TYPE_NAME_VALUE, "ContentEncoding", "base64");
 
 attachmentElement.createElementAsLastChild(MbElement.TYPE_NAME_VALUE, "ContentName", "error.gz");
 attachmentElement.createElementAsLastChild(MbElement.TYPE_NAME_VALUE, "Content", compress("hello".getBytes()));
 .
 .
 .
 //propagate to EmailOutput
 
 |  
 
 
 
 
   
	| Code: |  
	| public static String compress(byte[] uncompressed) throws IOException {
 ByteArrayOutputStream os = new ByteArrayOutputStream(uncompressed.length);
 GZIPOutputStream gos = new GZIPOutputStream(os);
 gos.write(uncompressed);
 gos.close();
 byte[] compressed = os.toByteArray();
 String s = new String(compressed);
 //return DatatypeConverter.printBase64Binary(compressed);
 return s;
 }
 
 |  
 
 I've tried encoding as base64, but I still couldn't get it to work.
 
 Thanks in advance for any help.
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		  | smdavies99 | 
			  
				|  Posted: Wed Nov 27, 2013 2:30 am    Post subject: |   |  |  
		  |  Jedi Council
 
 
 Joined: 10 Feb 2003Posts: 6076
 Location: Somewhere over the Rainbow this side of Never-never land.
 
 | 
			  
				| I've done this a long time ago. I don't have access to the code but here is how I got it sorted. 
 I took the sample flow and added a load of trace nodes to show things like
 
 ${LocalEnvironment}
 ${Root}
 ${Environment}
 
 and then I used the facility in the sample to add attachments. Then run it with usertrace to find out it was constructing the message it sends to the EmailOutput Node.
 
 Then I replicated that in my flow.
 
 At the time, I was using the IA99 Support pack (ZIP Node) to zip up my package. That is no longer available/works on later versions but what you are doing seems right in principle.
 _________________
 WMQ User since 1999
 MQSI/WBI/WMB/'Thingy' User since 2002
 Linux user since 1995
 
 Every time you reinvent the wheel the more square it gets (anon). If in doubt think and investigate before you ask silly questions.
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		  | Esa | 
			  
				|  Posted: Wed Nov 27, 2013 2:53 am    Post subject: Re: Java msgflow: EmailOutput node to send binary attachment |   |  |  
		  |  Grand Master
 
 
 Joined: 22 May 2008Posts: 1387
 Location: Finland
 
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				| 
   
	| upsidedown wrote: |  
	| I've tried encoding as base64, but I still couldn't get it to work.
 
 |  
 Define work.
 
 The message you are constructing, is it using MIME parser?
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		  | upsidedown | 
			  
				|  Posted: Wed Nov 27, 2013 3:07 am    Post subject: Re: Java msgflow: EmailOutput node to send binary attachment |   |  |  
		  | Newbie
 
 
 Joined: 27 Nov 2013Posts: 2
 
 
 | 
			  
				| 
   
	| Esa wrote: |  
	| [ Define work.
 
 |  
 The file gets attached but it is not a valid file when I try opening it.
 
 
 
   
	| Esa wrote: |  
	| [ The message you are constructing, is it using MIME parser?
 |  
 I set the 'ContentEncoding', if that is what you mean.
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		  | Esa | 
			  
				|  Posted: Wed Nov 27, 2013 4:35 am    Post subject: Re: Java msgflow: EmailOutput node to send binary attachment |   |  |  
		  |  Grand Master
 
 
 Joined: 22 May 2008Posts: 1387
 Location: Finland
 
 | 
			  
				| 
   
	| upsidedown wrote: |  
	| 
 I set the 'ContentEncoding', if that is what you mean.
 |  
 No, it's not. Click 'MIME' in my previous post and you see what I mean.
 
 You must buid a MIME tree and put the attachments under OutputRoot.MIME.Parts as in the MIME tree diagram. If you propagate the MIME tree to an EmailOutput -- or any other output node -- the MIME parser will serialize the tree and construct the message for you, even base64encode the attachments.
 
 Never done it myself yet, but that's the way it's supposed to work.
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