MsgBuilder nodes and file creation

I have a process creating a file from the data within a couple of MsgBuilder nodes. Those MsgBuilder nodes, depending on the week, may or may not have data present. When there isn't file present in some of those MsgBuilder nodes, the file writes with a blank line. I'd like to eliminate that line (basically not have the MsgBuilder node not write to the file when no data is present), but the only way I've found to do that so far is via branch nodes, which quickly becomes overwhelming when you have 6 MsgBuilder nodes that are all independent of each other. Is there a better way to do this?

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Comments

unknown

Hi dslough,

If you don't want to do branch nodes, the only other option I can think of is the write the data from the MsgBuilder nodes into a temporary file first. Then, after it is written, use DataIterator node to go through the temp file by line, and write the output to a "final" file if it isn't blank.

It's kinda clunky, but it should work.

Good Luck!

Kelly

bone

Hi dslogh,

If you don't need to use the msgbuilder node you could use javascript in an assign node to create your output to string variables. Then write the file using the variable. You will still will have multiple branches but it will be in one assign node.

Thanks, Warner

russel-cornelson

Two good suggestions below; Kelly's solution would likely require less work. But wjohnson's would be a neater flow .. just replace message builders with assign nodes. Something like:

if inboundstring.length() > 0 {

writefilestring = writefilestring + inboundstring;

}

If you employ this method; you may need to insert your own empty lines / carriage return - line feed characters. For windows I typically create a string in start node <!CR> = "
"

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