Helpers for listCollections and listIndexes now handle responses containing cursor documents

 JAVA-1588

Author: jyemin

src/main/com/mongodb/DBApiLayer.java

@@ -149,13 +149,27 @@ public Set<String> getCollectionNames() {
         try {
             List<String> collectionNames = new ArrayList<String>();
             if (isServerVersionAtLeast(asList(2, 7, 7))) {
-                CommandResult res = command(new BasicDBObject("listCollections", getName()), ReadPreference.primary());
+                CommandResult res = command(new BasicDBObject("listCollections", getName()).append("cursor", new BasicDBObject()),
+                                            ReadPreference.primary());
                 if (!res.ok() && res.getCode() != 26) {
                     res.throwOnError();
                 } else {
                     List<DBObject> collections = (List<DBObject>) res.get("collections");
-                    for (DBObject collectionInfo: collections) {
-                        collectionNames.add(collectionInfo.get("name").toString());
+                    if (collections != null) {
+                        for (DBObject collectionInfo : collections) {
+                            collectionNames.add(collectionInfo.get("name").toString());
+                        }
+                    } else {
+                        QueryResultIterator iterator = new QueryResultIterator(res, getMongo(), 0, DefaultDBDecoder.FACTORY.create(),
+                                                                               res.getServerUsed());
+                        try {
+                            while (iterator.hasNext()) {
+                                DBObject collectionInfo = iterator.next();
+                                collectionNames.add(collectionInfo.get("name").toString());
+                            }
+                        } finally {
+                            iterator.close();
+                        }
                     }
                 }
             } else {

src/main/com/mongodb/DBCollectionImpl.java

@@ -343,13 +343,28 @@ public List<DBObject> getIndexInfo() {
             List<DBObject> list = new ArrayList<DBObject>();
 
             if (db.isServerVersionAtLeast(asList(2, 7, 6))) {
-                CommandResult res = _db.command(new BasicDBObject("listIndexes", getName()), ReadPreference.primary());
+                CommandResult res = _db.command(new BasicDBObject("listIndexes", getName()).append("cursor", new BasicDBObject()),
+                                                ReadPreference.primary());
                 if (!res.ok() && res.getCode() == 26) {
                     return list;
                 }
                 res.throwOnError();
-                for (DBObject indexDocument : (List<DBObject>) res.get("indexes")) {
-                    list.add(indexDocument);
+                List<DBObject> indexes = (List<DBObject>) res.get("indexes");
+                if (indexes != null) {
+                    for (DBObject indexDocument : indexes) {
+                        list.add(indexDocument);
+                    }
+                } else {
+                    QueryResultIterator iterator = new QueryResultIterator(res, db.getMongo(), 0, DefaultDBDecoder.FACTORY.create(),
+                                                                           res.getServerUsed());
+                    try {
+                        while (iterator.hasNext()) {
+                            DBObject collectionInfo = iterator.next();
+                            list.add(collectionInfo);
+                        }
+                    } finally {
+                        iterator.close();
+                    }
                 }
             } else {
                 BasicDBObject cmd = new BasicDBObject("ns", getFullName());