Memento redirect must not also have payload. Added unittest to ensure it

does not try to access warc-files for payload by setting playback
allowed.

src/main/java/dk/kb/netarchivesuite/solrwayback/memento/DatetimeNegotiation.java

@@ -190,7 +190,8 @@ private static Response streamMementoFromNonRedirectingTimeGate(MementoDoc doc,
     }
 
     /**
-     * Streams the memento found for the timegate.
+     * Return the header with the 302 redirection location. Has no payload.
+     * 
      * @param doc           containing data from solr for accessing the memento in the WARC files.
      * @param metadata      object which contains metadata on the memento. Including the additional headers.
      * @return              a response containing correct memento headers and the memento as the response entity.
@@ -199,9 +200,8 @@ private static Response streamMementoFromRedirectingTimeGate(MementoDoc doc, Mem
         if (PropertiesLoader.PLAYBACK_DISABLED){
             return Response.noContent().replaceAll(metadata.getHttpHeaders()).build();
         } else {
-            try {
-                ArcEntry mementoEntity = Facade.getArcEntry(doc.getSource_file_path(), doc.getSource_file_offset());
-                ResponseBuilder entity = Response.status(302).entity(mementoEntity.getBinaryRaw());
+            try {               
+                ResponseBuilder entity = Response.status(302);
                 addMementoHeadersToReponse(entity,metadata);                
                 return entity.build();
             } catch (Exception e) {

src/test/java/dk/kb/netarchivesuite/solrwayback/memento/DatetimeNegotiationTest.java

@@ -69,7 +69,8 @@ public void tearDown() throws Exception {
 
     @Test
     public void testHeadersForPatternTwoPointTwo() throws Exception {
-        PropertiesLoader.PLAYBACK_DISABLED = true;
+        PropertiesLoader.PLAYBACK_DISABLED = true; //Must be disabled since playback needs warc files
+        PropertiesLoader.MEMENTO_REDIRECT = false;
 
         Response timeGate = DatetimeNegotiation.getMemento("http://kb.dk/", "Thu, 23 Mar 2019 14:05:57 GMT");
         MultivaluedMap<String, Object> headers = timeGate.getHeaders();
@@ -87,7 +88,7 @@ public void testHeadersForPatternTwoPointTwo() throws Exception {
 
     @Test
     public void testHeadersForPatternTwoPointOne() throws Exception {
-        PropertiesLoader.PLAYBACK_DISABLED = true;
+        PropertiesLoader.PLAYBACK_DISABLED = false; //
         PropertiesLoader.MEMENTO_REDIRECT = true;
 
         Response timeGate = DatetimeNegotiation.getMemento("http://kb.dk/", "Thu, 23 Mar 2019 14:05:57 GMT");
@@ -97,7 +98,7 @@ public void testHeadersForPatternTwoPointOne() throws Exception {
         assertNotNull(headers.get("Location"));
         assertFalse(headers.containsKey("Memento-Datetime"));
         assertTrue(headers.get("Link").get(0).toString().contains("rel=\"original\""));
-        assertEquals(0, headers.get("Content-Length").get(0));
+        assertEquals("0", headers.get("Content-Length").get(0));
         assertEquals("text/html;charset=UTF-8", headers.get("Content-Type").get(0));
     }