[kepler-dev] Datasource changes

Dan Higgins higgins at nceas.ucsb.edu
Fri Feb 3 14:00:50 PST 2006

    Nice job on changing the EML2DataSource to use initialize to wait 
for data to be loaded. Now, if I click on 'Run' before data is finished 
loading, the workflows will just wait (inside 'initialize') until data 
is ready, rather than throwing an error. (at least the ones I looked at 
did when run from within Vergil).

    However, I decided to test execution using the ptexecute macro. [You 
can use the ant target(s) 'ptexecute' or 'ptexecute-dev', or generate a 
batch file with 'build_ptexecute'.] ptexecute will run the workflow 
'workflows/eco/IPCC_Base_Layers.xml' OK if the data is in the cache; 
however, if the data is NOT in the cache (i.e. needs to be downloaded), 
I get a null pointer exception
Caused by: java.lang.NullPointerException

    Another problem is that I cannot run multiple 'ptexecute' process 
simultaneously nor can I run kelper while a long ptexecute process is 
running. I suspect this is the same problem we saw before with multiple 
Kepler processes, but I am somewhat surprized that it occurs with 
ptexecute (This is with workflows that have datasources).


Dan Higgins                                  higgins at nceas.ucsb.edu
http://www.nceas.ucsb.edu/    Ph: 805-893-5127
National Center for Ecological Analysis and Synthesis (NCEAS) Marine Science Building - Room 3405
Santa Barbara, CA 93195

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