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diff --git a/tools/intergen/cppgen/src/cppgen/message_factory_function.cc b/tools/intergen/cppgen/src/cppgen/message_factory_function.cc
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+++ b/tools/intergen/cppgen/src/cppgen/message_factory_function.cc
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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.
+ */
+
+#include "cppgen/message_factory_function.h"
+
+#include "cppgen/literal_generator.h"
+#include "cppgen/naming_convention.h"
+#include "model/interface.h"
+#include "utils/safeformat.h"
+#include "utils/string_utils.h"
+
+using typesafe_format::format;
+using typesafe_format::strmfmt;
+
+namespace codegen {
+
+MessageFactoryFunction::MessageFactoryFunction(
+    const Interface* interface,
+    SerializationType serialization_type,
+    FunctionMessage::MessageType factory_type)
+    : CppFunction("",
+                  serialization_type == kJson ? "NewFromJson" : "NewFromDbus",
+                  Capitalize(
+                    FunctionMessage::MessageTypeToString(
+                      factory_type)) + "*"),
+      interface_(interface),
+      factory_type_(factory_type) {
+  Add(MessageFactoryFunction::Parameter(
+        serialization_type == kJson ? "json" : "reader",
+        serialization_type == kJson ? "const Json::Value*": "dbus::MessageReader*"));
+  Add(MessageFactoryFunction::Parameter("function_id", "FunctionID"));
+}
+
+void MessageFactoryFunction::DefineBody(std::ostream* os) const {
+  *os << "switch (function_id) {\n";
+  {
+    Indent indent(*os);
+    switch(factory_type_) {
+      case FunctionMessage::kRequest: {
+        DefineCases(os, interface_->all_requests());
+        break;
+      }
+      case FunctionMessage::kResponse: {
+        DefineCases(os, interface_->all_responses());
+        break;
+      }
+      case FunctionMessage::kNotification: {
+        DefineCases(os, interface_->notifications());
+        break;
+      }
+    }
+  }
+  *os << "}\n";
+}
+
+void MessageFactoryFunction::DefineCases(
+    std::ostream* os,
+    const MessageList& functions) const {
+  for (MessageList::const_iterator i = functions.begin(),
+       end = functions.end(); i != end; ++i) {
+    const FunctionMessage* message = *i;
+    strmfmt(*os, "case {0}: return new {1}({2});\n",
+            LiteralGenerator(*message->id()).result(),
+            message->name(),
+            parameters_[0].name);
+  }
+  *os << "default: return NULL;\n";
+}
+
+} // namespace codegen