DEPRECATED

NOTE: This project is deprecated after grafter.pipelines was removed from grafter and grafter.tabular.

It should still be usable in grafter versions prior to 0.8.12.

lein-grafter

Adds some convenient commandline tools for listing and running pipelines in a grafter project.

Usage

Put the following into the :plugins vector of your grafter projects project.clj e.g.

:plugins [[lein-grafter "0.3.0"]]

Once this is done the following command line features will become available:

Listing Pipelines

Then inside a grafter pipeline that defines some pipelines with defpipe and/or defgraft you can list pipelines like this:

$ lein grafter list
test-project.pipeline/convert-persons-data                   data-file                      ;; An example pipeline tabular pipeline
test-project.pipeline/convert-persons-data-to-graph          data-file                      ;; A pipeline generating linked data

Running Tabular Pipelines

You can run the pipelines with the command lein grafter run. Pipe's exposed with defpipe yield tabular output and can be used to convert the file into csv, xls or xlsx (Excel formats) by for example running. Note how grafter infers the format from the output files file extension.

$ lein grafter run test-project.pipeline/convert-persons-data ./data/example-data.csv example-output.csv
$ lein grafter run test-project.pipeline/convert-persons-data ./data/example-data.csv example-output.xlsx
$ lein grafter run test-project.pipeline/convert-persons-data ./data/example-data.csv example-output.xls

Running Linked Data Pipelines (Grafts)

To output linked data (RDF) you must call a graft (a pipeline that converts tabular data -> linked data). Like with defpipe grafts must be exposed to the plugin with defgraft.

They can be run in the same way as pipes e.g to output linked data as turtle:

$ lein grafter run test-project.pipeline/convert-persons-data-to-graph ./data/example-data.csv example-output.ttl

... or as n-triples:

$ lein grafter run test-project.pipeline/convert-persons-data-to-graph ./data/example-data.csv example-output.nt

Supported formats for triples and their file extensions are:

• n-triples .nt
• turtle .ttl
• n3 .n3
• rdf xml .rdf

Supported formats for quads and their file extensions are:

• n-quads .nq
• trig .trig
• trix .trix

License

Copyright © 2014 Swirrl IT Ltd

Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.