Executing a workflow with java

Node Development
1

Hi,

my problem is execute a knime workflow in a java project.
I’ve seen faq where are the instruction to use knime in batch mode, but when I run my java project knime opens the workflow but doesn’t execute it.
How I can do???

I post the .bat file’s content:

c:\knime\knime.exe -consoleLog -application -workflowDir=“C:/Knime/workspace/Vid” -workflowFile=“C:/Knime/workspace/Vid/workflow.knime” org.knime.core.node.workflow.BatchExecutor

Thanks

Roberto

2

Here is the command slightly adapted:
c:\knime\knime.exe -application org.knime.product.BATCH_APPLICATION -nosplash -noexit -consoleLog -reset -workflowDir=“C:/knime/workspace/Vid”

  1. Define the application to run correctly: -application org.knime.product.BATCH_APPLICATION
  2. First define the application you want to run, then the parameters
  3. Either define -workflowDir (the location of the directory containing the workflow), or -workflowFile (the location of the zip archive containing the workflow)
  4. the -reset option resets the workflow prior to execution.
Let us know if you still encounter problems.
3

Hi,

thanks for your response.

I’ve modified .bat file with your string but it gives me an error.
Seeing the log files I’ve seen this message "java.lang.RuntimeException: Application “org.knime.product.BATCH_APPLICATION” could not be found in the registry."
So I’ve changed “org.knime.product.BATCH_APPLICATION” with “org.knime.product.KNIME_APPLICATION” (without the quotes) but it gives me the problem I’ve exposed: the program loads the workflow but doesn’t execute it. :frowning:

4

It must be KNIME_BATCH_APPLICATION, I guess. There is also a FAQ entry to avoid further errors. Cheers Bernd

5

Thanks Bernd,
now it works!

It was KNIME_BATCH_APPLICATION without KNIME_APPLICATION only opens the file but doesn’t execute it.

KNIME_BATCH_APPLICATION instead opens and execute the wokflow.

Thanks for the help.

Cheers,
Roberto

6

Hi,Roberto

Please tell me how to make workfow autoexecute in a fixed time everyday without KNIME Enterprise server supporting. If possible, give me a simple example. my mail is

rockfiller@126.com

Thanks

Rockfiller

7