From ad0e916fb7a53a3763302afa278557eddd4d2c0f Mon Sep 17 00:00:00 2001
From: Shay Banon <kimchy@gmail.com>
Date: Mon, 13 Aug 2012 12:42:11 +0200
Subject: [PATCH] don't allow an empty type in the mapper service

---
 .../java/org/elasticsearch/index/mapper/MapperService.java     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/main/java/org/elasticsearch/index/mapper/MapperService.java b/src/main/java/org/elasticsearch/index/mapper/MapperService.java
index be9b54a3ab2..6bfac74e648 100644
--- a/src/main/java/org/elasticsearch/index/mapper/MapperService.java
+++ b/src/main/java/org/elasticsearch/index/mapper/MapperService.java
@@ -191,6 +191,9 @@ public class MapperService extends AbstractIndexComponent implements Iterable<Do
     // instances of field mappers to properly remove existing doc mapper
     private void add(DocumentMapper mapper) {
         synchronized (mutex) {
+            if (mapper.type().length() == 0) {
+                throw new InvalidTypeNameException("mapping type name is empty");
+            }
             if (mapper.type().charAt(0) == '_') {
                 throw new InvalidTypeNameException("mapping type name [" + mapper.type() + "] can't start with '_'");
             }