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-rwxr-xr-xexamples/datasets.scm120
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diff --git a/examples/datasets.scm b/examples/datasets.scm
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+#! /usr/bin/env guile
+!#
+
+(use-modules (rnrs programs)
+             (rnrs io ports)
+             (srfi srfi-1)
+             (srfi srfi-26)
+             (ice-9 getopt-long)
+             (ice-9 match)
+             (ice-9 regex)
+             (transform strings)
+             (transform sql)
+             (transform triples)
+             (transform special-forms))
+
+
+(define-transformer gn:dataset->metadata
+  (tables (Datasets
+           (inner-join InfoFiles "ON InfoFiles.DatasetId = Datasets.DatasetId")
+           (inner-join InbredSet "ON InbredSet.Id = InfoFiles.InbredSetId"))
+          ;; Skip monkey datasets
+          "WHERE InfoFiles.InfoPageName NOT LIKE 'INIA_MacFas_%'"
+          "GROUP BY Datasets.DatasetId")
+  (triples (string->identifier "dataset" (field InfoFiles InfoPageName) #:separator "_")
+    (set rdf:type 'dcat:Dataset)
+    (set dct:title (normalize-string-field (field InfoFiles InfoPageName)))
+    (set dct:identifier (format #f "GN~a" (field InfoFiles GN_AccesionId)))
+    (set gnt:has_genotype_files (string->symbol (format #f "gn-files:GN~a%2F" (field InfoFiles GN_AccesionId))))
+    (set gnt:has_strain
+         (string->identifier "set" (field InbredSet Name InbredSetName) #:separator "_"))
+    (set gnt:has_experiment_type
+         (let ((experiment-type
+                (field InfoFiles Experiment_Type)))
+           (if (or (null? experiment-type) (string-blank? experiment-type))
+               "" (sanitize-rdf-string experiment-type))))
+    (set gnt:has_tissue_info
+         (let ((tissue-info
+                (field Datasets AboutTissue)))
+           (if (or (null? tissue-info) (string-blank? tissue-info))
+               "" (sanitize-rdf-string tissue-info))))
+    (set gnt:has_summary
+         (let* ((summary
+                 (field Datasets Summary)))
+           (if (or (null? summary) (string-blank? summary))
+               "" (sanitize-rdf-string summary))))
+    (set gnt:has_citation
+         (let ((citation
+                (field Datasets Citation)))
+           (if (or (null? citation) (string-blank? citation))
+               "" (sanitize-rdf-string citation))))
+    (set gnt:has_samples
+         (let ((samples
+                (field InfoFiles samples)))
+           (if (or (null? samples) (string-blank? samples))
+               "" (sanitize-rdf-string samples))))
+    (set gnt:has_specifics
+         (let* ((specifics
+                 (field InfoFiles Specifics)))
+           (if (or (null? specifics) (string-blank? specifics))
+               "" (sanitize-rdf-string specifics))))
+    (set gnt:has_case_info
+         (let ((cases
+                (field Datasets AboutCases)))
+           (if (or (null? cases) (string-blank? cases))
+               "" (sanitize-rdf-string cases))))
+    (set gnt:has_platform_info
+         (let* ((platform
+                 (field Datasets AboutPlatform)))
+           (if (or (null? platform) (string-blank? platform))
+               "" (sanitize-rdf-string platform))))
+    (set gnt:has_data_processing_info
+         (let* ((processing
+                 (field Datasets AboutDataProcessing)))
+           (if (or (null? processing) (string-blank? processing))
+               "" (sanitize-rdf-string processing))))
+    (set gnt:has_experiment_design
+         (let ((experiment-design
+                (field Datasets ExperimentDesign)))
+           (if (or (null? experiment-design) (string-blank? experiment-design))
+               "" (sanitize-rdf-string experiment-design))))
+    (set gnt:has_contributors
+         (let ((contributors
+                (field Datasets Contributors)))
+           (if (or (null? contributors) (string-blank? contributors))
+               "" (sanitize-rdf-string contributors))))))
+
+
+(let* ((option-spec
+        '((settings (single-char #\s) (value #t))
+          (output (single-char #\o) (value #t))
+          (documentation (single-char #\d) (value #t))))
+       (options (getopt-long (command-line) option-spec))
+       (settings (option-ref options 'settings #f))
+       (output (option-ref options 'output #f))
+       (documentation (option-ref options 'documentation #f))
+       (%connection-settings
+        (call-with-input-file settings
+          read)))
+  (with-documentation
+   (name "Datasets Metadata")
+   (connection %connection-settings)
+   (table-metadata? #f)
+   (prefixes
+    '(("dct:" "<http://purl.org/dc/terms/>")
+      ("dcat:" "<http://www.w3.org/ns/dcat#>")
+      ("gn:" "<http://rdf.genenetwork.org/v1/id/>")
+      ("gnc:" "<http://rdf.genenetwork.org/v1/category/>")
+      ("gnt:" "<http://rdf.genenetwork.org/v1/term/>")
+      ("gn-files:" "<http://files.genenetwork.org/current/>")
+      ("rdf:" "<http://www.w3.org/1999/02/22-rdf-syntax-ns#>")
+      ("rdfs:" "<http://www.w3.org/2000/01/rdf-schema#>")
+      ("owl:" "<http://www.w3.org/2002/07/owl#>")
+      ("skos:" "<http://www.w3.org/2004/02/skos/core#>")
+      ("xkos:" "<http://rdf-vocabulary.ddialliance.org/xkos#>")
+      ("xsd:" "<http://www.w3.org/2001/XMLSchema#>")))
+   (inputs
+    (list gn:dataset->metadata))
+   (outputs
+    `(#:documentation ,documentation
+      #:rdf ,output))))