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with
Ada.Strings.Unbounded.Text_IO,
Ada.Text_IO,
CSV;
use
Ada.Strings.Unbounded.Text_IO,
Ada.Text_IO;
package body Bundles.Containers is
package My_CSV is new CSV;
package SU renames Ada.Strings.Unbounded;
protected type Preference_Input is
procedure Open (Filename : in String);
procedure Read_Line
(Line : out SU.Unbounded_String;
EOF : out Boolean);
procedure Close;
private
Source : File_Type;
end Preference_Input;
protected body Preference_Input is
procedure Open (Filename : in String) is
begin
Open (Source, In_File, Filename);
end Open;
procedure Read_Line
(Line : out SU.Unbounded_String;
EOF : out Boolean) is
begin
if End_Of_File (Source) then
EOF := True;
else
EOF := False;
Line := Get_Line (Source);
end if;
end Read_Line;
procedure Close is
begin
Ada.Text_IO.Close (Source);
end Close;
end Preference_Input;
type Paper_Array is array (Valid_CandidateID) of Paper_Vectors.Vector;
type Paper_Array_Array is array (1 .. Num_Threads) of Paper_Array;
Empty_Paper_Array : Paper_Array :=
(others => Paper_Vectors.Empty_Vector);
task type Parse_Worker
(Input : access Preference_Input;
Output : access Paper_Array_Array) is
entry Start (On : in Positive);
end Parse_Worker;
task body Parse_Worker is
use type Candidates.CandidateID;
Work_On : Positive;
Current_Line : SU.Unbounded_String;
Current_Record : My_CSV.CSV_Record;
Current_Prefs : Given_Prefs.Preference_Array;
Are_We_Done_Yet : Boolean;
begin
accept Start (On : in Positive) do
Work_On := On;
end Start;
loop
Input.Read_Line (Current_Line, Are_We_Done_Yet);
exit when Are_We_Done_Yet;
Current_Record := My_CSV.Parse_Line (SU.To_String (Current_Line));
if Integer (Current_Record.Length) > 0 then
Current_Prefs := Given_Prefs.Parse_Preferences
(SU.To_String (Current_Record.Last_Element));
if Current_Prefs (Given_Prefs.Preference_Range'First) /=
Candidates.No_Candidate
then
Output (Work_On) (Current_Prefs (Given_Prefs.Preference_Range'First)).Append
(Current_Prefs);
end if;
end if;
end loop;
end Parse_Worker;
procedure Read_Bundles_Threaded
(Filename : in String;
Result : out Bundle_Collection)
is
use type Bundle_Vector;
Input : aliased Preference_Input;
Outputs : aliased Paper_Array_Array :=
(others => Empty_Paper_Array);
begin
Result := (others => Bundle_Vectors.Empty_Vector & Empty_Bundle);
Input.Open (Filename);
declare
Workers : array (1 .. Num_Threads) of Parse_Worker
(Input'Access, Outputs'Access);
begin
for I in Workers'Range loop
Workers (I).Start (I);
end loop;
end;
Input.Close;
for CID in Valid_CandidateID loop
for O of Outputs loop
Result (CID).Reference (1).Papers.Append (O (CID));
O (CID) := Paper_Vectors.Empty_Vector;
end loop;
if Result (CID).Reference (1) = Empty_Bundle then
Result (CID).Delete (1);
end if;
end loop;
end Read_Bundles_Threaded;
procedure Read_Bundles
(Filename : in String;
Result : out Bundle_Collection)
is
package My_CSV is new CSV;
use Ada.Text_IO;
use type Candidates.CandidateID;
use type Bundle_Vectors.Vector;
Input_File : File_Type;
Current_Record : My_CSV.CSV_Record;
Current_Prefs : Given_Prefs.Preference_Array;
begin
Result := (others => Bundle_Vectors.Empty_Vector & Empty_Bundle);
Open (Input_File, In_File, Filename);
while not End_Of_File (Input_File) loop
Current_Record := My_CSV.Parse_Line (Get_Line (Input_File));
if Integer (Current_Record.Length) > 0 then
Current_Prefs := Given_Prefs.Parse_Preferences
(SU.To_String (Current_Record.Last_Element));
if Current_Prefs (Given_Prefs.Preference_Range'First) /=
Candidates.No_Candidate
then
Result (Current_Prefs (Given_Prefs.Preference_Range'First)).Reference
(1).Papers.Append (Current_Prefs);
end if;
end if;
end loop;
Close (Input_File);
for B of Result loop
if B.Reference (1) = Empty_Bundle then
B.Delete (1);
end if;
end loop;
end Read_Bundles;
end Bundles.Containers;
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