From e30c67570cc0926e869a4e30f72045baa6406f3b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Brochet?= <sebastien.brochet@cern.ch>
Date: Thu, 17 Sep 2015 09:53:19 +0200
Subject: [PATCH] Ensure that categories and cuts are unique. Fix #56

---
 interface/Category.h | 4 ++++
 src/Cut.cc           | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/interface/Category.h b/interface/Category.h
index 55bd8b7..c7f2d2f 100644
--- a/interface/Category.h
+++ b/interface/Category.h
@@ -91,6 +91,10 @@ class CategoryManager {
     public:
         template<class T>
         void new_category(const std::string& name, const std::string& description, const edm::ParameterSet& config) {
+            if (m_categories.count(name) > 0) {
+                throw edm::Exception(edm::errors::InsertFailure, "A category named '" + name + "' already exists.");
+            }
+
             std::unique_ptr<Category> category(new T());
             category->configure(config);
             m_categories.emplace(name, CategoryData(name, description, std::move(category), m_tree));
diff --git a/src/Cut.cc b/src/Cut.cc
index f0d946c..eb82e27 100644
--- a/src/Cut.cc
+++ b/src/Cut.cc
@@ -2,6 +2,9 @@
 #include <cp3_llbb/Framework/interface/Category.h>
 
 void CutManager::new_cut(const std::string& name, const std::string& description) {
+    if (m_cuts.count(name) > 0) {
+        throw edm::Exception(edm::errors::InsertFailure, "A cut named '" + name + "' already exists.");
+    }
     m_cuts.emplace(name, Cut(name, description, m_category.tree));
 }