set the title every time, it is possible that it has changed

htroot/solr/select.java

@@ -38,6 +38,7 @@ public class select {
         try {solrServlet.init(null);} catch (ServletException e) {}
         RESPONSE_WRITER.putAll(SolrCore.DEFAULT_RESPONSE_WRITERS);
         RESPONSE_WRITER.put("exml", new EnhancedXMLResponseWriter());
+        RESPONSE_WRITER.put("rss", new OpensearchResponseWriter()); //try http://localhost:8090/solr/select?wt=rss&q=olympia
     }
 
     /**
@@ -91,15 +92,14 @@ public class select {
         // get a response writer for the result
         String wt = post.get("wt", "xml"); // maybe use /solr/select?q=*:*&start=0&rows=10&wt=exml
         QueryResponseWriter responseWriter = RESPONSE_WRITER.get(wt);
-        if (responseWriter == null) {
-            if (RESPONSE_WRITER.get("rss") == null) {
+        if (responseWriter == null) return null;
+        if (responseWriter instanceof OpensearchResponseWriter) {
+            // set the title every time, it is possible that it has changed
             final String promoteSearchPageGreeting =
                             (env.getConfigBool(SwitchboardConstants.GREETING_NETWORK_NAME, false)) ? env.getConfig(
                                 "network.unit.description",
                                 "") : env.getConfig(SwitchboardConstants.GREETING, "");
-                RESPONSE_WRITER.put("rss", new OpensearchResponseWriter(promoteSearchPageGreeting));
-                responseWriter = RESPONSE_WRITER.get(wt); //try http://localhost:8090/solr/select?wt=rss&q=olympia
-            }
+            ((OpensearchResponseWriter) responseWriter).setTitle(promoteSearchPageGreeting);
         }
 
         // write the result directly to the output stream

source/net/yacy/cora/services/federated/solr/OpensearchResponseWriter.java

@@ -58,7 +58,7 @@ public class OpensearchResponseWriter implements QueryResponseWriter {
     private static final char[] XML_STOP = "</rss>\n".toCharArray();
     private static final Set<String> DEFAULT_FIELD_LIST = null;
 
-    private final String title;
+    private String title;
 
     private static class ResHead {
         public int offset, rows, numFound;
@@ -67,8 +67,11 @@ public class OpensearchResponseWriter implements QueryResponseWriter {
         //public float maxScore;
     }
 
-    public OpensearchResponseWriter(String searchPageTitle) {
+    public OpensearchResponseWriter() {
         super();
+    }
+
+    public void setTitle(String searchPageTitle) {
         this.title = searchPageTitle;
     }