enexa-parameter

#!/bin/sh
set -eu
DIR="$(dirname "$(realpath "$0")")"/

ENEXA_PARAMETER_IRI="$1"
# If the graph is not set, use an empty string
GRAPH="${ENEXA_META_DATA_GRAPH:-}"

# If the graph variable is not set or it is emtpy
if [ -z "$GRAPH" ]; then 
  GRAPH_PART1=""
  GRAPH_PART2=""  
else
  GRAPH_PART1="GRAPH <$GRAPH> {"
  GRAPH_PART2="}"
fi

QUERY="PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 
PREFIX sd: <http://www.w3.org/ns/sparql-service-description#> 
PREFIX enexa: <http://w3id.org/dice-research/enexa/ontology#> 
SELECT ?v WHERE {
  $GRAPH_PART1
    {<$ENEXA_MODULE_INSTANCE_IRI> <$ENEXA_PARAMETER_IRI> ?l FILTER(isLiteral(?l)) BIND(str(?l) AS ?v)}
    UNION
    {<$ENEXA_MODULE_INSTANCE_IRI> <$ENEXA_PARAMETER_IRI> [rdf:value ?v]}
    UNION
    {<$ENEXA_MODULE_INSTANCE_IRI> <$ENEXA_PARAMETER_IRI> [sd:endpoint ?v]}
    UNION 
    {<$ENEXA_MODULE_INSTANCE_IRI> <$ENEXA_PARAMETER_IRI> [enexa:location ?l] BIND(REPLACE(?l, 'enexa-dir:/', '$ENEXA_SHARED_DIRECTORY') AS ?v)}
  $GRAPH_PART2}"

# For debugging
echo $QUERY >&2

echo $QUERY \
|"$DIR"/sparql-select "$ENEXA_META_DATA_ENDPOINT" \
|awk '(NR==2) { gsub(/^"|"$/, ""); print }'