Add skos lookup (#415)

README.md

@@ -212,6 +212,17 @@ put_map("<mapName>",
 )
 ```
 
+##### `put_rdfmap`
+
+Defines an external RDF map for lookup from a file or an HTTP(S) resource.
+As the RDF map is reducing RDF triples to a key/value map it is mandatory to set the target.
+The targeted RDF property can optionally be bound by an RDF language tag.
+
+```perl
+put_rdfmap("<rdfResource>", "<rdfMapName>", target: "<rdfProperty>")
+put_rdfmap("<rdfResource>", "<rdfMapName>", target: "<rdfProperty>", select_language: "<rdfLanguageTag>")
+```
+
 ##### `put_var`
 
 Defines a single global variable that can be referenced with `$[<variableName>]`.
@@ -553,7 +564,7 @@ join_field("<sourceField>", "<separator>")
 
 ##### `lookup`
 
-Looks up matching values in a map and replaces the field value with this match. [External files](#put_filemap) as well as [internal maps](#put_map) can be used.
+Looks up matching values in a map and replaces the field value with this match. [External files](#put_filemap), [internal maps](#put_map) as well as [RDF resources](#put_rdfmap) can be used.
 
 Parameters:
 
@@ -599,6 +610,10 @@ lookup("path.to.field", "path/to/file", sep_char: ";")
 put_filemap("path/to/file", "file-map", sep_char: ";")
 lookup("path.to.field", "file-map")
 
+# RDF map (explicit)
+put_rdfmap("path/to/file", "rdf-map", target: "<rdfProperty>")
+lookup("path.to.field", "rdf-map")
+
 # with default value
 lookup("path.to.field", "map-name", __default: "NA")
 

build.gradle

@@ -36,7 +36,9 @@ subprojects {
       'ace':            '1.3.3',
       'antlr':          '3.2',
       'equalsverifier': '3.8.2',
+      'guava':          '29.0-jre',
       'jackson':        '2.13.3',
+      'jena':           '3.17.0',
       'jetty':          '9.4.14.v20181114',
       'jquery':         '3.3.1-1',
       'junit_jupiter':  '5.8.2',
@@ -45,8 +47,8 @@ subprojects {
       'mockito':        '2.27.0',
       'requirejs':      '2.3.6',
       'slf4j':          '1.7.21',
-      'xtext':          '2.26.0',
-      'guava':          '29.0-jre'
+      'wiremock':       '2.33.2',
+      'xtext':          '2.26.0'
     ]
   }
 

metafix/build.gradle

@@ -13,15 +13,18 @@ dependencies {
   implementation "com.fasterxml.jackson.core:jackson-core:${versions.jackson}"
   implementation "com.fasterxml.jackson.core:jackson-databind:${versions.jackson}"
   implementation "com.google.guava:guava:${versions.guava}"
+  implementation "org.apache.jena:jena-arq:${versions.jena}"
+  implementation "org.apache.jena:jena-core:${versions.jena}"
   implementation "org.eclipse.emf:org.eclipse.emf.ecore:${versions.xtext}" // Workaround for hbz/lobid-resources#1462
   implementation "org.eclipse.xtext:org.eclipse.xtext.xbase:${versions.xtext}"
   implementation "org.eclipse.xtext:org.eclipse.xtext:${versions.xtext}"
   implementation "org.slf4j:slf4j-api:${versions.slf4j}"
 
-  testImplementation "org.junit.jupiter:junit-jupiter-api:${versions.junit_jupiter}"
-  testImplementation "org.junit.platform:junit-platform-launcher:${versions.junit_platform}"
+  testImplementation "com.github.tomakehurst:wiremock-jre8:${versions.wiremock}"
   testImplementation "org.eclipse.xtext:org.eclipse.xtext.testing:${versions.xtext}"
   testImplementation "org.eclipse.xtext:org.eclipse.xtext.xbase.testing:${versions.xtext}"
+  testImplementation "org.junit.jupiter:junit-jupiter-api:${versions.junit_jupiter}"
+  testImplementation "org.junit.platform:junit-platform-launcher:${versions.junit_platform}"
 
   testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:${versions.junit_jupiter}"
 
@@ -43,6 +46,10 @@ dependencies {
 configurations {
   mwe2 {
     extendsFrom implementation
+
+    dependencies {
+      implementation "org.slf4j:slf4j-simple:${versions.slf4j}"
+    }
   }
 }
 

metafix/src/main/java/org/metafacture/metafix/FixMethod.java

@@ -17,6 +17,7 @@
 package org.metafacture.metafix;
 
 import org.metafacture.metafix.api.FixFunction;
+import org.metafacture.metafix.maps.RdfMap;
 import org.metafacture.metamorph.api.Maps;
 import org.metafacture.metamorph.functions.ISBN;
 import org.metafacture.metamorph.functions.Timestamp;
@@ -92,6 +93,22 @@ public void apply(final Metafix metafix, final Record record, final List<String>
             metafix.putMap(params.get(0), options);
         }
     },
+    put_rdfmap {
+        @Override
+        public void apply(final Metafix metafix, final Record record, final List<String> params, final Map<String, String> options) {
+            final String fileName = params.get(0);
+            final RdfMap rdfMap = new RdfMap();
+
+            rdfMap.setResource(fileName, metafix::resolvePath);
+
+            withOption(options, RdfMap.TARGET, rdfMap::setTarget);
+            withOption(options, RdfMap.TARGET_LANGUAGE, rdfMap::setTargetLanguage);
+            withOption(options, RdfMap.SELECT, rdfMap::setSelect);
+            withOption(options, Maps.DEFAULT_MAP_KEY, rdfMap::setDefault);
+
+            metafix.putMap(params.size() > 1 ? params.get(1) : fileName, rdfMap);
+        }
+    },
     put_var {
         @Override
         public void apply(final Metafix metafix, final Record record, final List<String> params, final Map<String, String> options) {