Add scope validator

components/identity-extensions/org.wso2.carbon.device.mgt.oauth.extensions/src/main/java/org/wso2/carbon/device/mgt/oauth/extensions/handlers/grant/AccessTokenGrantHandler.java

@@ -21,6 +21,7 @@ package org.wso2.carbon.device.mgt.oauth.extensions.handlers.grant;
 import org.apache.commons.lang.StringUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.wso2.carbon.apimgt.keymgt.ScopesIssuer;
 import org.wso2.carbon.identity.application.authentication.framework.model.AuthenticatedUser;
 import org.wso2.carbon.identity.application.common.IdentityApplicationManagementException;
 import org.wso2.carbon.identity.application.common.model.ServiceProvider;
@@ -57,6 +58,11 @@ public class AccessTokenGrantHandler extends AbstractAuthorizationGrantHandler {
         }
     }
 
+    @Override
+    public boolean validateScope(OAuthTokenReqMessageContext tokReqMsgCtx) {
+        return ScopesIssuer.getInstance().setScopes(tokReqMsgCtx);
+    }
+
     @Override
     public boolean validateGrant(OAuthTokenReqMessageContext tokReqMsgCtx) throws IdentityOAuth2Exception {
         if (!super.validateGrant(tokReqMsgCtx)) {