added BundlesSourceStatus to getSetSpec method

src/main/java/org/gesis/dda/wizard/web/rest/BundlesSourceResource.java

@@ -104,14 +104,14 @@ public class BundlesSourceResource {
             .body(result);
     }
 
-    private String getSetSpec(String data) {
-        if (null != data) {
+    private String getSetSpec(String data, BundlesSourceType bundlesSourceType) {
+        if (null != data && bundlesSourceType == BundlesSourceType.XSLT_OAI_PMH) {
             final JSONObject obj = new JSONObject(data);
             if (null != obj.get("setSpec")) {
                 return (String) obj.get("setSpec");
             }
         }
-        return null;
+        return "";
     }
 
     /**
@@ -305,7 +305,7 @@ public class BundlesSourceResource {
         log.debug("REST request to harvest BundlesSource : {}", id);
         BundlesSource bundlesSource = bundlesSourceRepository.findOne(id);
         if (null != bundlesSource) {
-            final String setSpec = getSetSpec(bundlesSource.getData());
+            final String setSpec = getSetSpec(bundlesSource.getData(), bundlesSource.getType());
             if (null != setSpec) {
             final String referenceOfBS = bundlesSource.getReference();
             bundlesSource.setReference(referenceOfBS + "___" + setSpec);