Internal Data Structures used by the commON Parser

CSV Parser Internal Parsed Records Structure

The structure of the parsed CSV records is saved in the $csvRecords private member. Its content looks like:

    Array
    (
        [0] => &&recordList
    )
    Array
    (
        [0] => &id
        [1] => &type
        [2] => &prefLabel
        [3] => &homepage
        [4] => &authorClaimsPage
        [5] => &isAuthorOfTitle
        [6] => &isAuthorOfTitle&prefURL
    )
    Array
    (
        [0] => info:lib:am:2009-02-18:maria_francisca_abad_garcia
        [1] => Person
        [2] => Maria Francisca Abad-Garcia
        [3] =>
        [4] => http://authorclaim.org/profile/pab1/
        [5] => Acceso Abierto y revistas médicas españolas
        [6] => http://eprints.rclis.org/11490/1/open_acces_Medicina_Cl%C3%ADnica_2006_versi%C3%B3n_aceptada_del_autor.pdf
    )
     
     ...
     

The "&&recordList" processor keyword tells the parser that a recordList is introduced.

Then you have the CSV column structure that tels the parser how to recreate the key/value pairs

And then you have a series of records.

Common Parser Internal Parsed Records Structure

The parser commON records are saved in the $commonRecords private member. Its structure looks like:

  Array
  (
      [0] => Array
          (
              [&id] => Array
                  (
                      [0] => Array
                          (
                              [value] => info:lib:am:2009-02-18:maria_francisca_abad_garcia
                              [reify] =>
                          )
  
                  )
  
              [&type] => Array
                  (
                      [0] => Array
                          (
                              [value] => Person
                              [reify] =>
                          )
  
                  )
  
              [&prefLabel] => Array
                  (
                      [0] => Array
                          (
                              [value] => Maria Francisca Abad-Garcia
                              [reify] =>
                          )
  
                  )

                    [&homepage] => Array
                  (
                      [0] => Array                        
                          (
                              [value] => Personal Data in a Large Digital Library.
                              [reify] => Array
                                  (
                                      [&prefURL] => Array
                                          (
                                              [0] => http://dblp.uni-trier.de/db/conf/ercimdl/ecdl2000.html#CruzKK00
                                          )
  
                                  )
  
                          )
          )
                  
        ...
      )
      
    ...
  
  )
  

Where the first array is an array of records. Then for each record item, you have a list of attributes. Each attribute is a list of values. Then each value is an array with two keys: "value" and "reify". "value" is the value of the triple: "record" "attribute" "value". "reify" is an array of meta data (reifications) attribute/value pairs about the triple statement.

Linkage Schema Internal Structure

The Linkage Schema structure is used to map attributes and types used in a commON dataset to external vocabularies/taxonomies/ontologies. This structure is saved in the $commonLinkageSchema private member and looks like:

    Array
    (
        [description] => Array
            (
                [&version] => Array
                    (
                        [0] => 0.1
                    )
    
                [&linkageType] => Array
                    (
                        [0] => application/rdf+xml
                    )
    
            )
    
        [properties] => Array
            (
                [0] => Array
                    (
                        [&attributeList] => Array
                            (
                                [0] => prefLabel
                            )
    
                        [&mapTo] => Array
                            (
                                [0] => http://www.w3.org/2000/01/rdf-schema#label
                            )
    
                    )
    
                [1] => Array
                    (
                        [&attributeList] => Array
                            (
                                [0] => homepage
                            )
    
                        [&mapTo] => Array
                            (
                                [0] => http://xmlns.com/foaf/0.1/homepage
                            )
    
                    )
    
                [2] => Array
                    (
                        [&attributeList] => Array
                            (
                                [0] => prefURL
                            )
    
                        [&mapTo] => Array
                            (
                                [0] => http://purl.org/ontology/bibo/uri
                            )
    
                    )
    
            )
    
        [types] => Array
            (
                [0] => Array
                    (
                        [&typeList] => Array
                            (
                                [0] => Person
                            )
    
                        [&mapTo] => Array
                            (
                                [0] => http://xmlns.com/foaf/0.1/Person
                            )
    
                    )
    
            )
    
    )
    ...