From b8471cd05d3e4b228a599d046711d37c6072f47d Mon Sep 17 00:00:00 2001
From: lintao <lintao51@gmail.com>
Date: Mon, 5 Aug 2019 23:17:10 +0800
Subject: [PATCH] add a hello world algorithm.

---
 CMakeLists.txt                       |  6 ++++++
 Examples/CMakeLists.txt              | 11 ++++++++++
 Examples/src/HelloWorld/HelloAlg.cpp | 31 ++++++++++++++++++++++++++++
 Examples/src/HelloWorld/HelloAlg.h   | 21 +++++++++++++++++++
 Generator/CMakeLists.txt             |  2 ++
 README.md                            | 13 +++++++-----
 6 files changed, 79 insertions(+), 5 deletions(-)
 create mode 100644 CMakeLists.txt
 create mode 100644 Examples/CMakeLists.txt
 create mode 100644 Examples/src/HelloWorld/HelloAlg.cpp
 create mode 100644 Examples/src/HelloWorld/HelloAlg.h
 create mode 100644 Generator/CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 00000000..96496488
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,6 @@
+CMAKE_MINIMUM_REQUIRED(VERSION 3.0.0)
+
+find_package(GaudiProject)
+
+gaudi_project(cepc-offline HEAD
+              USE Gaudi v29r2 )
\ No newline at end of file
diff --git a/Examples/CMakeLists.txt b/Examples/CMakeLists.txt
new file mode 100644
index 00000000..5605c6bb
--- /dev/null
+++ b/Examples/CMakeLists.txt
@@ -0,0 +1,11 @@
+
+gaudi_subdir(Examples v0r0)
+
+set(Examples_srcs
+    src/HelloWorld/*.cpp
+)
+
+gaudi_add_module(Examples ${Examples_srcs}
+    INCLUDE_DIRS GaudiKernel
+    LINK_LIBRARIES GaudiKernel
+)
\ No newline at end of file
diff --git a/Examples/src/HelloWorld/HelloAlg.cpp b/Examples/src/HelloWorld/HelloAlg.cpp
new file mode 100644
index 00000000..730240c2
--- /dev/null
+++ b/Examples/src/HelloWorld/HelloAlg.cpp
@@ -0,0 +1,31 @@
+#include "HelloAlg.h"
+
+DECLARE_COMPONENT(HelloAlg)
+
+HelloAlg::HelloAlg(const std::string& name, ISvcLocator* pSvcLocator)
+: Algorithm(name, pSvcLocator) {
+
+}
+
+StatusCode
+HelloAlg::initialize() {
+    StatusCode sc;
+
+    info() << "MyInt: " << m_int.value() << endmsg;
+
+    return sc;
+}
+
+StatusCode
+HelloAlg::execute() {
+    StatusCode sc;
+    return sc;
+}
+
+StatusCode
+HelloAlg::finalize() {
+    StatusCode sc;
+    return sc;
+}
+
+
diff --git a/Examples/src/HelloWorld/HelloAlg.h b/Examples/src/HelloWorld/HelloAlg.h
new file mode 100644
index 00000000..9c689ca9
--- /dev/null
+++ b/Examples/src/HelloWorld/HelloAlg.h
@@ -0,0 +1,21 @@
+#ifndef HelloAlg_h
+#define HelloAlg_h
+
+#include <GaudiKernel/Algorithm.h>
+#include "GaudiKernel/Property.h"
+
+class HelloAlg: public Algorithm {
+public:
+    HelloAlg(const std::string& name, ISvcLocator* pSvcLocator);
+
+    StatusCode initialize() override;
+    StatusCode execute() override;
+    StatusCode finalize() override;
+
+private:
+
+    Gaudi::Property<int> m_int{this, "MyInt", 42};
+};
+
+
+#endif
diff --git a/Generator/CMakeLists.txt b/Generator/CMakeLists.txt
new file mode 100644
index 00000000..ef5f3728
--- /dev/null
+++ b/Generator/CMakeLists.txt
@@ -0,0 +1,2 @@
+
+gaudi_subdir(Generator v0r0)
\ No newline at end of file
diff --git a/README.md b/README.md
index 50c189ad..fbc118c6 100644
--- a/README.md
+++ b/README.md
@@ -1,15 +1,18 @@
 # cepc-offline
 
-CEPC offline software prototype
+CEPC offline software prototype based on Gaudi
 
 ## Packages
 
 * Core: Core Software Based on Gaudi
 
-* Simulation: Physics Generator & Detector Simulation
+* Generator: Physics Generator
 
-* Reconstruction
+* Simulation: Detector Simulation
 
-* Examples: For new comers
+* Reconstruction: Reconstruction
+
+* Examples: For new comers and users
+
+* cepcenv: tools to help developers build packages
 
-* cepcenv: tools to help developers build packages
\ No newline at end of file
-- 
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