Records sets an be held by multiple institutions.

src/main/kotlin/RecordSetSearchDocBuilder.kt

@@ -24,6 +24,7 @@ import ch.memobase.rdf.NS
 import ch.memobase.rdf.RDA
 import ch.memobase.rdf.RICO
 import ch.memobase.rdf.RICO.Types.RecordSet
+import com.beust.klaxon.JsonArray
 import com.beust.klaxon.JsonObject
 import org.apache.logging.log4j.LogManager
 import org.memobase.helpers.Date
@@ -114,8 +115,15 @@ class RecordSetSearchDocBuilder(private val elasticSearchWrapper: ElasticSearchW
         }
         val uri = recordSet[KEYS.entityId] as String
         val id = uri.substringAfterLast("/")
-        val institution = recordSet[RICO.heldBy.localName] as String
-        val institutionId = institution.substringAfterLast("/")
+        val institutions = when (val value = recordSet[RICO.heldBy.localName]) {
+            is String -> listOf(value)
+            is JsonArray<*> -> value as List<String>
+            else -> {
+                log.error("No institutions found for record set $id.")
+                emptyList()
+            }
+        }
+        val institutionIds = institutions.map { it.substringAfterLast("/") }
 
         val description = extractLanguageContainer(recordSet[RICO.descriptiveNote.localName], "")
         val rights = extractLanguageContainer(recordSet[RICO.conditionsOfUse.localName], "")
@@ -142,7 +150,7 @@ class RecordSetSearchDocBuilder(private val elasticSearchWrapper: ElasticSearchW
                 }
             },
             periodOfTimeAsYear = date,
-            institution = elasticSearchWrapper.getInstitutionName(institutionId),
+            institution = institutionIds.map { elasticSearchWrapper.getInstitutionName(it) },
             supportedByMemoriav = recordSet[KEYS.sponsoredBy] != null,
             name = name,
             documentType = elasticSearchWrapper.getDocumentTypesFromRecords(id, KEYS.QueryFields.recordSetFacet),

src/main/kotlin/model/RecordSetSearchDoc.kt

@@ -37,7 +37,7 @@ data class RecordSetSearchDoc(
     val periodOfTimeAsYear: IntegerRange?,
     val supportedByMemoriav: Boolean,
     val languageOfMetadata: List<FacetContainer>,
-    val institution: FacetContainer,
+    val institution: List<FacetContainer>,
 
     // Sort
     val lastUpdatedDate: String,
@@ -86,11 +86,7 @@ data class RecordSetSearchDoc(
                     facet = emptyList()
                 )
             ),
-            institution = FacetContainer(
-                LanguageContainer.placeholder("TEST INSTITUTION"),
-                filter = "INSTITUTION_IDENTIFIER",
-                facet = emptyList()
-            ),
+            institution = emptyList(),
             periodOfTimeAsYear = IntegerRange(2000, 2020),
             lastUpdatedDate = "2020-11-20T10:29:01.128",
             keyVisualLink = "https://mb-wf1.memobase.unibas.ch/sites/default/files/styles/teaser/public/2020-10/1.jpg?itok=5ncVBnVQ",