264.6. Java DSL

   ProtobufDataFormat format = new ProtobufDataFormat(Person.getDefaultInstance());

   from("direct:in").marshal(format);
   from("direct:back").unmarshal(format).to("mock:reverse");

   ProtobufDataFormat format = new ProtobufDataFormat(Person.getDefaultInstance());

   from("direct:in").marshal(format);
   from("direct:back").unmarshal(format).to("mock:reverse");

   // You don't need to specify the default instance for protobuf marshaling
   from("direct:marshal").marshal().protobuf();
   from("direct:unmarshalA").unmarshal()
       .protobuf("org.apache.camel.dataformat.protobuf.generated.AddressBookProtos$Person")
       .to("mock:reverse");

   from("direct:unmarshalB").unmarshal().protobuf(Person.getDefaultInstance()).to("mock:reverse");

   // You don't need to specify the default instance for protobuf marshaling
   from("direct:marshal").marshal().protobuf();
   from("direct:unmarshalA").unmarshal()
       .protobuf("org.apache.camel.dataformat.protobuf.generated.AddressBookProtos$Person")
       .to("mock:reverse");

   from("direct:unmarshalB").unmarshal().protobuf(Person.getDefaultInstance()).to("mock:reverse");