Support ID query paging (#6737)

catalog/solr/catalog-solr-core/src/main/java/ddf/catalog/source/solr/SolrMetacardClientImpl.java

@@ -42,6 +42,7 @@
 import ddf.catalog.data.impl.ResultImpl;
 import ddf.catalog.filter.FilterAdapter;
 import ddf.catalog.operation.FacetAttributeResult;
+import ddf.catalog.operation.Query;
 import ddf.catalog.operation.QueryRequest;
 import ddf.catalog.operation.SourceResponse;
 import ddf.catalog.operation.TermFacetProperties;
@@ -196,13 +197,9 @@ public SourceResponse query(QueryRequest request) throws UnsupportedQueryExcepti
 
     try {
       QueryResponse solrResponse;
-      boolean doRealTimeGet =
-          (boolean) request.getProperties().getOrDefault(DO_REALTIME_GET, false)
-              || BooleanUtils.toBoolean(
-                  filterAdapter.adapt(request.getQuery(), new RealTimeGetDelegate()));
 
       LOGGER.trace("Begin executing solr query: query request {}", request);
-      if (doRealTimeGet) {
+      if (shouldDoRealTimeGet(request)) {
         LOGGER.debug("Performing real time query");
         SolrQuery realTimeQuery = getRealTimeQuery(query, solrFilterDelegate.getIds());
         solrResponse = client.query(realTimeQuery, METHOD.POST);
@@ -237,6 +234,18 @@ public SourceResponse query(QueryRequest request) throws UnsupportedQueryExcepti
     return new SourceResponseImpl(request, responseProps, results, totalHits);
   }
 
+  private boolean shouldDoRealTimeGet(QueryRequest request) throws UnsupportedQueryException {
+    Query query = request.getQuery();
+    if (query.getStartIndex() > 1) {
+      // solr doesn't support paging of real time get requests so if a paging request is received
+      // here, it is safe to assume that we should not be doing a real time get to solr
+      return false;
+    }
+
+    return (boolean) request.getProperties().getOrDefault(DO_REALTIME_GET, false)
+        || BooleanUtils.toBoolean(filterAdapter.adapt(query, new RealTimeGetDelegate()));
+  }
+
   private List<SolrDocument> getSolrDocs(Set<String> ids) throws UnsupportedQueryException {
     List<SolrDocument> solrDocs = new ArrayList<>(ids.size());
     List<List<String>> partitions = Lists.partition(new ArrayList<>(ids), GET_BY_ID_LIMIT);