Concatenate_files___echo_results_but_no_filescontent_of_outputfile 'text/plain' 2010-10-27 14:25:13.764 BST text/plain 2010-10-27 14:25:13.764 BST echoed_concatenation_results text/plain 2010-10-27 14:25:13.764 BST 'text/plain' 2010-10-27 14:25:13.764 BST Create_temporary_filefilepath00net.sf.taverna.t2.activitiesbeanshell-activity1.2net.sf.taverna.t2.activities.beanshell.BeanshellActivity workflow 0 filepath 0 'text/plain' net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Parallelize 1 net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.ErrorBouncenet.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Failovernet.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Retry 1.0 0 0 0 net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.InvokeCreate_and_populate_temporary_filecontent0filepath00net.sf.taverna.t2.activitiesbeanshell-activity1.2net.sf.taverna.t2.activities.beanshell.BeanshellActivity workflow java.lang.String true content 0 'text/plain' 0 filepath 0 'text/plain' net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Parallelize 1 net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.ErrorBouncenet.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Failovernet.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Retry 1.0 0 0 0 net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Invoketruevalue00net.sf.taverna.t2.activitiesstringconstant-activity1.2net.sf.taverna.t2.activities.stringconstant.StringConstantActivity true net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Parallelize 1 net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.ErrorBouncenet.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Failovernet.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Retry 1.0 0 0 0 net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Invokestring_listvalue00net.sf.taverna.t2.activitiesstringconstant-activity1.2net.sf.taverna.t2.activities.stringconstant.StringConstantActivity net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Parallelize 1 net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.ErrorBouncenet.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Failovernet.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Retry 1.0 0 0 0 net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.InvokeSplit_string_into_string_list_by_regular_expressionstring0split11net.sf.taverna.t2.activitieslocalworker-activity1.2net.sf.taverna.t2.activities.localworker.LocalworkerActivity org.embl.ebi.escience.scuflworkers.java.SplitByRegex workflow java.lang.String true string 0 'text/plain' java.lang.String true regex 0 'text/plain' 1 split 1 l('text/plain') net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Parallelize 1 net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.ErrorBouncenet.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Failovernet.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Retry 1.0 1000 5000 0 net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.InvokeConcatenate_Filesfilelist1displayresults0outputfile0results00net.sf.taverna.t2.activitieslocalworker-activity1.2net.sf.taverna.t2.activities.localworker.LocalworkerActivity net.sourceforge.taverna.scuflworkers.io.ConcatenateFileListWorker workflow java.lang.String true filelist 1 l('text/plain') java.lang.String true outputfile 0 'text/plain' java.lang.String true displayresults 0 'text/plain' 0 results 0 'text/plain' net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Parallelize 1 net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.ErrorBouncenet.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Failovernet.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Retry 1.0 1000 5000 0 net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.InvokeRead_Text_Filefileurl0filecontents00net.sf.taverna.t2.activitieslocalworker-activity1.2net.sf.taverna.t2.activities.localworker.LocalworkerActivity net.sourceforge.taverna.scuflworkers.io.TextFileReader workflow java.lang.String true fileurl 0 'text/plain' 0 filecontents 0 'text/plain' net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Parallelize 1 net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.ErrorBouncenet.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Failovernet.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.Retry 1.0 1000 5000 0 net.sf.taverna.t2.coreworkflowmodel-impl1.2net.sf.taverna.t2.workflowmodel.processor.dispatch.layers.InvokeCreate_and_populate_temporary_filecontentSplit_string_into_string_list_by_regular_expressionsplitSplit_string_into_string_list_by_regular_expressionstringstring_listvalueConcatenate_FilesfilelistCreate_and_populate_temporary_filefilepathConcatenate_FilesdisplayresultstruevalueConcatenate_FilesoutputfileCreate_temporary_filefilepathRead_Text_FilefileurlCreate_temporary_filefilepathcontent_of_outputfileRead_Text_Filefilecontentsechoed_concatenation_resultsConcatenate_Filesresults 6a381148-a0bf-483b-a7e2-3b499d891a4e 2010-10-28 14:42:59.743 BST The split_string_into_string_list_by_regular_expresson outputs an empty list since the string to be split is defaulted to ''. As there are no input values, the create_and_populate_temporary_file generates an empty list. The create_temporary_file beanshell creates a file to which the concatentation can be written. The concatenate_files service does not write anything to the temporary output file. Because the displayresults port has been given a default value of 'true', the empty string is also copied to the results port of concatenate_files. The temporary file to which the results were written is read by the read_text_file service and its contents output. Both of the workflow outputs contain '' i.e. the empty string. 2010-10-27 14:25:13.789 BST Alan R Williams 2010-10-27 14:25:13.789 BST Concatenate files - echo results but no files 2010-10-27 14:25:13.789 BST Concatenate files - echo results but no files 2010-10-28 14:42:53.606 BST 1b1bccba-4701-4589-b19c-116ee0a5ab96 2010-10-27 14:27:26.946 BST Concatenate files - echo results but no files 2010-10-28 14:42:50.486 BST