Xmi reader changeoperators

[Jefidev]

I extended the XMI reader in order to handle the various change operators. All the operators needed by the evolution team are implemented.

[Jefidev]

The latest commit contains an XMIReader working on the generated typhonML.rsc

[Jefidev]

The handlers for the change operators have been updated in order to work with the new XMI syntax. The code was tested on all the available change operators.

[pinoval]

I ran a test on the XMI reader (function smokeTest3). It seems that the name of attributes get lost. Without applying the pull request, the produced schema is:

schema(
  {
    <"Review",one(),"user","reviews",zero_many(),"User",false>,
    <"Product",zero_many(),"reviews","product",one(),"Review",true>,
    <"User",zero_many(),"reviews","user",one(),"Review",true>,
    <"Biography",one(),"user","biography",zero_one(),"User",false>,
    <"Review",one(),"product","reviews",zero_many(),"Product",false>,
    <"User",zero_one(),"biography","user",one(),"Biography",true>
  },
  {
    <"User","name","string(256)">,
    <"Product","productionDate","date">,
    <"User","address","string(256)">,
    <"Biography","content","string(256)">,
    <"Product","description","string(256)">,
    <"Review","content","text">,
    <"Product","name","string(256)">,
    <"Product","price","int">
  },
  customs={},
  placement={
    <<sql(),"Inventory">,"User">,
    <<sql(),"Inventory">,"Product">,
    <<mongodb(),"Reviews">,"Biography">,
    <<mongodb(),"Reviews">,"Review">
  },
  changeOperators=[])

With the pull request integrated, I got:

schema(
  {
    <"Review",one(),"user","reviews",zero_many(),"User",false>,
    <"Product",zero_many(),"reviews","product",one(),"Review",true>,
    <"User",zero_many(),"reviews","user",one(),"Review",true>,
    <"Biography",one(),"user","biography",zero_one(),"User",false>,
    <"Review",one(),"product","reviews",zero_many(),"Product",false>,
    <"User",zero_one(),"biography","user",one(),"Biography",true>
  },
  {
    <"Product","","int">,
    <"User","","int">,
    <"Biography","","int">,
    <"Review","","int">
  },
  customs={},
  placement={
    <<sql(),"Inventory">,"User">,
    <<sql(),"Inventory">,"Product">,
    <<mongodb(),"Reviews">,"Biography">,
    <<mongodb(),"Reviews">,"Review">
  },
  changeOperators=[])

[Jefidev]

With the latest commit, the attributes name are now correctly extracted.