update array matching logic to work with delimiter instead of JSON array as EDC does not support this

Author: M-Busk

policy-extension/src/main/java/org/eclipse/edc/extension/possiblepolicy/ConnectorIdConstraintFunction.java

@@ -8,6 +8,7 @@
 import org.eclipse.edc.spi.agent.ParticipantAgent;
 import org.eclipse.edc.spi.monitor.Monitor;
 
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Map;
 import java.util.Objects;
@@ -24,6 +25,12 @@ public ConnectorIdConstraintFunction(Monitor monitor) {
 
     @Override
     public boolean evaluate(Operator operator, Object rightValue, R rule, PolicyContext context) {
+
+        if (!(rightValue instanceof String)) {
+            context.reportProblem("Right-value expected to be String but was " + rightValue.getClass());
+            return false;
+        }
+
         var contextData = context.getContextData(ParticipantAgent.class);
         if (contextData == null) {
             return false;
@@ -37,18 +44,19 @@ public boolean evaluate(Operator operator, Object rightValue, R rule, PolicyCont
             monitor.info(format("Found attribute %s : %s", e.getKey(), e.getValue()));
         }
 
-        var clientIdClaim = contextData.getClaims().get("client_id");
+        String clientIdClaim = (String) contextData.getClaims().get("client_id");
 
         if (clientIdClaim == null) {
             return false;
         }
 
-        monitor.info(format("Evaluating constraint: connectorId %s %s %s", clientIdClaim, operator, rightValue.toString()));
+        monitor.info(format("Evaluating constraint: connectorId %s %s %s", clientIdClaim, operator, rightValue));
 
         return switch (operator) {
             case EQ -> Objects.equals(clientIdClaim, rightValue);
             case NEQ -> !Objects.equals(clientIdClaim, rightValue);
-            case IN -> ((Collection<?>) rightValue).contains(clientIdClaim);
+            case IN, IS_ANY_OF -> Arrays.asList(((String) rightValue).split(",")).contains(clientIdClaim);
+            case IS_NONE_OF -> !Arrays.asList(((String) rightValue).split(",")).contains(clientIdClaim);
             default -> false;
         };
     }