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diff --git a/tools/intergen/cppgen/include/cppgen/handler_interface.h b/tools/intergen/cppgen/include/cppgen/handler_interface.h
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+/* Copyright (c) 2014, Ford Motor Company
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * Neither the name of the Ford Motor Company nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef HANDLER_INTERFACE_H
+#define HANDLER_INTERFACE_H
+
+#include "cppgen/cpp_class.h"
+
+#include "model/function.h"
+#include "utils/stl_utils.h"
+
+namespace codegen {
+class CppFile;
+class Namespace;
+
+/*
+ * Class is used to declare message handler interfaces for specific messages of
+ * given type for given interface
+ */
+class HandlerInterface: public CppClass {
+public:
+  // Methods
+  // Creates HandlerInterface object that is used to produce declaration of
+  // Handler interface. This interface defines handler methods for messages of
+  // given |type| defined in given rpc |interface|.
+  // Interface declaration requires message types to be forward-declared, these
+  // declarations are placed into given |header_file|.
+  HandlerInterface(FunctionMessage::MessageType type,
+                   const Interface* interface,
+                   CppFile* header_file);
+protected:
+  // Methods
+  // CppClass interface
+  virtual const MethodsList& methods();
+
+private:
+  // Types
+  typedef std::vector<const FunctionMessage*> FunctionMessages;
+private:
+  // Methods
+  // Collects all the messages that are to be handled and defines
+  // Handler methods for them. Also declares virtual destructor.
+  void CollectMethods();
+  // Helper method that actually generates handler functions
+  void AddFunctionMessageHandlers(const FunctionMessages& function_messages);
+private:
+  // Fields
+  FunctionMessage::MessageType type_;
+  const Interface* interface_;
+  CppFile* header_file_;
+  MethodsList methods_;
+  utils::StdContainerDeleter<MethodsList> methods_deleter_;
+};
+
+}  // namespace codegen
+
+#endif // HANDLER_INTERFACE_H