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Archive Files and Directories

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:

  • zip
  • tar

Media types

SPARQL Anything selects this transformer for the following media types:

  • application/zip
  • application/x-tar

Default implementation

Default Transformation

Data

example.tar
├── test.csv
├── test.json
├── test.txt
└── test.xml

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>
      { ?s  ?p  ?o }
  }

Facade-X RDF

@prefix fx:  <http://sparql.xyz/facade-x/ns/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@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"
] .

Data: Directory /Users/lgu/Desktop/example

/Users/lgu/Desktop/example
├── test.csv
├── test.json
├── test.txt
└── test.xml

Query

CONSTRUCT 
  { 
    ?s ?p ?o .
  }
WHERE
  { SERVICE <x-sparql-anything:location=/Users/lgu/Desktop/example>
      { ?s  ?p  ?o }
  }

Facade-X RDF

@prefix fx:  <http://sparql.xyz/facade-x/ns/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix xyz: <http://sparql.xyz/facade-x/data/> .

[ rdf:type  fx:root ;
  rdf:_1    "file:///Users/lgu/Desktop/example/" ;
  rdf:_2    "file:///Users/lgu/Desktop/example/test.csv" ;
  rdf:_3    "file:///Users/lgu/Desktop/example/test.json" ;
  rdf:_4    "file:///Users/lgu/Desktop/example/test.xml" ;
  rdf:_5    "file:///Users/lgu/Desktop/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

Input

Data

example.tar
├── test.csv
├── test.json
├── test.txt
└── test.xml

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

Use Case 1: Select and triplify only .csv and .txt files within the archive.
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 fx:  <http://sparql.xyz/facade-x/ns/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix xyz: <http://sparql.xyz/facade-x/data/> .

[ rdf:type  fx:root ;
  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"
            ]
] .

[ rdf:type  fx:root ;
  rdf:_1    "this is a test"
] .