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Archive

Archives and directories can be seen as files with the purpose of collecting other files. According to the Facade-X metamodel archives and directories can be seen as lists of filenames.

Extensions

SPARQL Anything selects this transformer for the following file extensions:

  • tar
  • zip

Media types

SPARQL Anything selects this transformer for the following media types:

  • application/x-tar
  • application/zip

Default implementation

Default Transformation

Data

Located at https://sparql-anything.cc/examples/example.tar

Query

CONSTRUCT 
  { 
    ?s ?p ?o .
  }
WHERE
  { SERVICE <x-sparql-anything:location=https://sparql-anything.cc/examples/example.tar>
      { GRAPH ?g
          { ?s  ?p  ?o }
      }
  }

Facade-X RDF

PREFIX dc:     <http://purl.org/dc/elements/1.1/>
PREFIX eg:     <http://www.example.org/>
PREFIX fx:     <http://sparql.xyz/facade-x/ns/>
PREFIX ja:     <http://jena.hpl.hp.com/2005/11/Assembler#>
PREFIX owl:    <http://www.w3.org/2002/07/owl#>
PREFIX rdf:    <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs:   <http://www.w3.org/2000/01/rdf-schema#>
PREFIX rss:    <http://purl.org/rss/1.0/>
PREFIX vcard:  <http://www.w3.org/2001/vcard-rdf/3.0#>
PREFIX whatwg: <https://html.spec.whatwg.org/#>
PREFIX xhtml:  <http://www.w3.org/1999/xhtml#>
PREFIX xsd:    <http://www.w3.org/2001/XMLSchema#>
PREFIX xyz:    <http://sparql.xyz/facade-x/data/>

[ rdf:type  fx:root;
  rdf:_1    "example/";
  rdf:_2    "example/test.csv";
  rdf:_3    "example/test.json";
  rdf:_4    "example/test.xml";
  rdf:_5    "example/test.txt"
] .

Options

Summary

Option name Description Valid Values Default Value
archive.matches It tells sparql.anything to evaluate a regular expression on the filenames within the archives. In this case the slots will be filled with the files that match the regex only. Any valid regular expression .*

archive.matches

Description

It tells sparql.anything to evaluate a regular expression on the filenames within the archives. In this case the slots will be filled with the files that match the regex only.

Valid Values

Any valid regular expression

Default Value

.*

Examples

Example 1

Select and triplify only .csv and .txt files within the archive.

Input

https://sparql-anything.cc/examples/example.tar

Query
PREFIX  xyz:  <http://sparql.xyz/facade-x/data/>
PREFIX  fx:   <http://sparql.xyz/facade-x/ns/>
PREFIX  rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

CONSTRUCT 
  { 
    ?s1 ?p1 ?o1 .
  }
WHERE
  { SERVICE <x-sparql-anything:location=https://sparql-anything.cc/examples/example.tar>
      { fx:properties
                  fx:archive.matches  ".*txt|.*csv" .
        ?s        fx:anySlot          ?file1
        SERVICE <x-sparql-anything:>
          { fx:properties
                      fx:location      ?file1 ;
                      fx:from-archive  "https://sparql-anything.cc/examples/example.tar" .
            ?s1       ?p1              ?o1
          }
      }
  }
Result
PREFIX dc:     <http://purl.org/dc/elements/1.1/>
PREFIX eg:     <http://www.example.org/>
PREFIX fx:     <http://sparql.xyz/facade-x/ns/>
PREFIX ja:     <http://jena.hpl.hp.com/2005/11/Assembler#>
PREFIX owl:    <http://www.w3.org/2002/07/owl#>
PREFIX rdf:    <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs:   <http://www.w3.org/2000/01/rdf-schema#>
PREFIX rss:    <http://purl.org/rss/1.0/>
PREFIX vcard:  <http://www.w3.org/2001/vcard-rdf/3.0#>
PREFIX whatwg: <https://html.spec.whatwg.org/#>
PREFIX xhtml:  <http://www.w3.org/1999/xhtml#>
PREFIX xsd:    <http://www.w3.org/2001/XMLSchema#>
PREFIX xyz:    <http://sparql.xyz/facade-x/data/>

[ rdf:type  fx:root;
  rdf:_1    "this is a test";
  rdf:_1    [ rdf:_1  "Year";
              rdf:_2  "Make";
              rdf:_3  "Model";
              rdf:_4  "Description";
              rdf:_5  "Price"
            ];
  rdf:_2    [ rdf:_1  "1997";
              rdf:_2  "Ford";
              rdf:_3  "E350";
              rdf:_4  "ac, abs, moon";
              rdf:_5  "3000.00"
            ];
  rdf:_3    [ rdf:_1  "1999";
              rdf:_2  "Chevy";
              rdf:_3  "Venture \"Extended Edition\"";
              rdf:_4  "";
              rdf:_5  "4900.00"
            ];
  rdf:_4    [ rdf:_1  "1999";
              rdf:_2  "Chevy";
              rdf:_3  "Venture \"Extended Edition, Very Large\"";
              rdf:_4  "";
              rdf:_5  "5000.00"
            ];
  rdf:_5    [ rdf:_1  "1996";
              rdf:_2  "Jeep";
              rdf:_3  "Grand Cherokee";
              rdf:_4  "MUST SELL!\nair, moon roof, loaded";
              rdf:_5  "4799.00"
            ]
] .