Generate 'setQueryParams' method

Ensures v2 POST query-params aren't put in a 'form' body.

solr/core/src/java/org/apache/solr/filestore/DistribFileStore.java

@@ -383,9 +383,6 @@ private void distribute(FileInfo info) {
           nodeToFetchFrom = "*";
         }
         try {
-          // TODO NOCOMMIT This request succeeds but quietly doesn't pass the 'getFrom' parameter
-          // due to logic in HSC that whitelists the query params sent through on POST and PUT
-          // requests.  I've never really understood this logic well, does it still need to exist?
           final var pullFileRequest = new FileStoreApi.ExecuteFileStoreCommand(info.path);
           pullFileRequest.setGetFrom(nodeToFetchFrom);
           final var client = coreContainer.getSolrClientCache().getHttpSolrClient(baseUrl);

solr/solrj/src/resources/java-template/api.mustache

@@ -23,10 +23,12 @@ import java.io.OutputStream;
 import java.lang.reflect.Type;
 import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
+
 import org.apache.solr.client.solrj.SolrClient;
 import org.apache.solr.client.solrj.SolrRequest;
 import org.apache.solr.client.solrj.response.SimpleSolrResponse;
@@ -239,6 +241,15 @@ public class {{classname}} {
               return params;
             }
 
+            @Override
+            public Set<String> getQueryParams() {
+              final var queryParams = new HashSet<String>();
+              {{#queryParams}}
+              queryParams.add("{{baseName}}");
+              {{/queryParams}}
+              return queryParams;
+            }
+
             @Override
             protected {{operationIdCamelCase}}Response createResponse(SolrClient client) {
               return new {{operationIdCamelCase}}Response();