Changes between Version 2 and Version 3 of BackwardIncompatibleChanges


Ignore:
Timestamp:
01/26/15 16:40:09 (9 years ago)
Author:
rlacroix
Comment:

Update for new calendar changes

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  • BackwardIncompatibleChanges

    v2 v3  
    1515 
    1616  For example, `<variable id="my_attribute2" type="integer" >10</variable>` will become `<variable id="my_attribute2" type="int" >10</variable>` and `<variable id="print_file" type="boolean">true</variable>` will become `<variable id="print_file" type="bool">true</variable>`. 
     17- Calendar related attributes (`calendar_type`, `timestep`, `start_date`, `time_origin`) have been moved from the `context` object to a new child object `calendar`. 
     18 
     19  The following excerpt from a configuration file: 
     20  {{{ 
     21    <context id="test" calendar_type="Gregorian" start_date="2012-03-01 15:00:00" time_origin="2012-02-29 15:00:00"> 
     22    ... 
     23    </context> 
     24  }}} 
     25  will become: 
     26  {{{ 
     27    <context id="test"> 
     28      <calendar type="Gregorian" start_date="2012-03-01 15:00:00" time_origin="2012-02-29 15:00:00" /> 
     29    ... 
     30    </context> 
     31  }}} 
     32 
     33- Be careful to the following changes related to the calendar initialization: 
     34    - XIOS now requires that the calendar type is decided once and for all, either in the configuration file or the Fortran interface. 
     35    - the start date and time origin cannot be defined before the calendar type has been decided. 
     36    - by default the start date and the time origin are defined as `0000-01-01 00:00:00`. If the start date is set but the time origin is not, the time origin is not automatically set to be equal to the start date. 
     37 
     38- The Fortran interface has been modified to reflect the changes made to the calendar definition in the configuration file and a new type `xios_date` must now be used to manipulate the attributes corresponding to dates (`start_date`, `time_origin`). 
     39 
     40  The following code: 
     41  {{{ 
     42  PROGRAM test 
     43    USE xios 
     44    ... 
     45    CALL xios_set_context_attr("test",calendar_type="Gregorian") 
     46    CALL xios_set_context_attr("test",start_date="2000-01-01 00:00:00") 
     47    CALL xios_set_context_attr("test",time_origin="1999-01-01 15:00:00") 
     48    ... 
     49  END PROGRAM test 
     50  }}} 
     51  will become: 
     52  {{{ 
     53  PROGRAM test 
     54    USE xios 
     55    ... 
     56    TYPE(xios_date) :: start_date, time_origin 
     57    ... 
     58    CALL xios_get_handle("test",ctx_hdl) 
     59    CALL xios_set_current_context(ctx_hdl) 
     60    ... 
     61    CALL xios_define_calendar("Gregorian") 
     62    start_date = xios_date(2000, 01, 01, 00, 00, 00) 
     63    CALL xios_set_start_date(start_date) 
     64    time_origin = xios_date(1999, 01, 01, 15, 00, 00) 
     65    CALL xios_set_time_origin(time_origin) 
     66    ... 
     67  END PROGRAM test 
     68  }}} 
     69  or 
     70  {{{ 
     71  PROGRAM test 
     72    USE xios 
     73    ... 
     74    TYPE(xios_date) :: start_date, time_origin 
     75    ... 
     76    CALL xios_get_handle("test",ctx_hdl) 
     77    CALL xios_set_current_context(ctx_hdl) 
     78    ... 
     79    start_date = xios_date(2000, 01, 01, 00, 00, 00) 
     80    time_origin = xios_date(1999, 01, 01, 15, 00, 00) 
     81    CALL xios_define_calendar("Gregorian", start_date=start_date, time_origin=time_origin) 
     82    ... 
     83  END PROGRAM test 
     84  }}} 
     85 
    1786- attributes corresponding to a duration should now be manipulated using the `xios_duration` type when using the Fortran interface. Affected attributes are: 
    18   - `timestep` in `context` objects 
     87  - `timestep` in `calendar` objects (previously in the `context` objects) 
    1988  - `freq_op` and `freq_offset` in `field` objects 
    2089  - `output_freq`, `sync_freq` and `split_freq` in `file` objects. 
    … …  
    52121  END PROGRAM test 
    53122  }}} 
    54   or 
    55   {{{ 
    56   PROGRAM test 
    57     USE xios 
    58     ... 
    59     TYPE(xios_duration) :: dtime 
    60     ... 
    61     CALL xios_get_handle("test",ctx_hdl) 
    62     CALL xios_set_current_context(ctx_hdl) 
    63     ... 
    64     dtime%second=3600 
    65     CALL xios_set_context_attr("test", timestep=dtime) 
    66     ... 
    67   END PROGRAM test 
    68   }}} 
    69 - attributes corresponding to a date should now be manipulated using the `xios_date` type when using the Fortran interface. Affected attributes are `start_date` and `time_origin` in `context` objects. 
    70  
    71   The following code: 
    72   {{{ 
    73   PROGRAM test 
    74     USE xios 
    75     ... 
    76     CALL xios_set_context_attr("test",calendar_type="Gregorian") 
    77     CALL xios_set_context_attr("test",start_date="2000-01-01 00:00:00") 
    78     CALL xios_set_context_attr("test",time_origin="1999-01-01 15:00:00") 
    79     ... 
    80   END PROGRAM test 
    81   }}} 
    82   will become: 
    83   {{{ 
    84   PROGRAM test 
    85     USE xios 
    86     ... 
    87     TYPE(xios_date) :: start_date, time_origin 
    88     ... 
    89     CALL xios_set_context_attr("test",calendar_type="Gregorian")  
    90     start_date = xios_date(2000, 01, 01, 00, 00, 00)  
    91     CALL xios_set_context_attr("test",start_date=start_date)  
    92     time_origin = xios_date(1999, 01, 01, 15, 00, 00)  
    93     CALL xios_set_context_attr("test",time_origin=time_origin)  
    94     ... 
    95   END PROGRAM test 
    96   }}}