From 3e0159dcd4efcfe70b221ab87bd70f57c8ef172d Mon Sep 17 00:00:00 2001
From: Sandro La Bruzzo <sandro.labruzzo@gmail.com>
Date: Fri, 28 Apr 2023 11:22:45 +0200
Subject: [PATCH] added LookUp method for RelClass, this method replaces the
 ModelSupport.findRelation

---
 .../java/eu/dnetlib/dhp/schema/oaf/Relation.java | 16 +++++++++++++---
 .../eu/dnetlib/dhp/schema/oaf/RelationTest.java  | 10 +++++++++-
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/main/java/eu/dnetlib/dhp/schema/oaf/Relation.java b/src/main/java/eu/dnetlib/dhp/schema/oaf/Relation.java
index 11812da..9254f2a 100644
--- a/src/main/java/eu/dnetlib/dhp/schema/oaf/Relation.java
+++ b/src/main/java/eu/dnetlib/dhp/schema/oaf/Relation.java
@@ -3,9 +3,7 @@ package eu.dnetlib.dhp.schema.oaf;
 
 import java.beans.Transient;
 import java.io.Serializable;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Objects;
+import java.util.*;
 
 /**
  * Relation models any edge between two nodes in the OpenAIRE graph. It has a source id and a target id pointing to
@@ -179,6 +177,18 @@ public class Relation extends Oaf implements Serializable {
             throw new IllegalArgumentException("missing SubRel mapping for" + this);
         }
 
+        /**
+         * This mehtod is an implementation of the valueOF case insensitive
+         * @param value the input Value
+         * @return the RELCLASS 
+         */
+        public static RELCLASS lookUp(String value) {
+            Optional<RELCLASS> rvlaue = Arrays.stream(RELCLASS.values()).filter(e -> e.name().equalsIgnoreCase(value)).findAny();
+            if (rvlaue.isPresent())
+                return rvlaue.get();
+            throw new IllegalArgumentException("value: "+value+" not found");
+        }
+
         @Transient
         public RELCLASS getInverse() {
             switch (this) {
diff --git a/src/test/java/eu/dnetlib/dhp/schema/oaf/RelationTest.java b/src/test/java/eu/dnetlib/dhp/schema/oaf/RelationTest.java
index 6b14242..a54ece7 100644
--- a/src/test/java/eu/dnetlib/dhp/schema/oaf/RelationTest.java
+++ b/src/test/java/eu/dnetlib/dhp/schema/oaf/RelationTest.java
@@ -2,6 +2,7 @@ package eu.dnetlib.dhp.schema.oaf;
 
 import static org.junit.jupiter.api.Assertions.*;
 
+import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
 public class RelationTest {
@@ -13,7 +14,7 @@ public class RelationTest {
 
     }
     @Test
-    public void checSubRelType() {
+    public void checkSubRelType() {
         Relation.RELCLASS rc = Relation.RELCLASS.merges;
         assertEquals(Relation.SUBRELTYPE.dedup, rc.getSubRel());
 
@@ -23,4 +24,11 @@ public class RelationTest {
         }
     }
 
+    @Test
+    public void lookRelClassUpTest() {
+        Assertions.assertEquals(Relation.RELCLASS.Compiles, Relation.RELCLASS.lookUp("compiles"));
+        Assertions.assertEquals(Relation.RELCLASS.IsMetadataFor, Relation.RELCLASS.lookUp("isMetaDATAFOr"));
+        Assertions.assertThrows(IllegalArgumentException.class, () -> Relation.RELCLASS.lookUp("hello"));
+    }
+
 }