Exemplo n.º 1
0
        public void PopulateDatabaseFromUnpivotedStaarTestFile(string parsedFilePath, string logPath)
        {
            var dems = _ctx.DemographicDetails.ToList();
            var cats = _ctx.CategoryDetails.ToList();
            var subjs = _ctx.Subjects.ToList();
            var camps = _ctx.Campuses.ToList();
            var dists = _ctx.Districts.ToList();
            var regs = _ctx.Regions.ToList();
            var langs = _ctx.Languages.ToList();
            var completed = _ctx.StaarTests
                .GroupBy(s => new
                {
                    s.Year,
                    Subject = s.Subject.Name,
                    s.Grade,
                    s.Language.Name
                })
                .Select(s => new
                {
                    s.Key.Year,
                    SubjectName = s.Key.Subject,
                    s.Key.Grade,
                    Language = s.Key.Name
                }).ToList();

            string previousCampus = "",
                previousSubject = "",
                previousDemographic = "",
                previousCategory = "";
            long campusId = 0;
            var subject = new Subject();
            var dd = new DemographicDetail();
            var cd = new CategoryDetail();
            var log = File.CreateText(logPath);

            //Validation

            if (!parsedFilePath.Contains(".csv"))
                throw new CustomException("This is not a csv file.");


            //read the lines in. First row is headers. save it then remove

            var rows = File.ReadAllLines(parsedFilePath).ToList();
            rows.RemoveAt(0); //headers

            if (rows.Count > 12) //this is our test to make sure they are parsed
                throw new CustomException(string.Format("{0} is not in the format of a parsed file", Path.GetFileName(parsedFilePath)));

            //Begin adding data

            var splitRows = rows.Select(row => row.Split(',')).ToList();


            //adjust year if it is off

            var year = int.Parse(splitRows[0][1]);
            if (year >= 90 && year < 100) year += 1900;
            else if (year < 90) year += 2000;

            var language = langs.Single(l => l.Name == splitRows[0][7]);
            var campusTests = new List<StaarTest>(90005);
            var sortedCount = splitRows.Count;


            for (var i = 0; i < sortedCount; i++)
            {
                try
                {
                    var record = splitRows[i];

                    if (completed.Any(c => c.SubjectName == record[8]
                                           && c.Grade == record[6]
                                           && c.Year == year
                                           && c.Language == language.Name))
                        continue;

                    //check if we're on a new school

                    if (previousCampus != record[0])
                    {
                        //Find the school. Create if not new

                        long campusNum = Convert.ToInt32(record[0]);
                        long regionNum = Convert.ToInt32(record[2]);
                        long districtNum = Convert.ToInt32(record[3]);

                        //check region, district, and campus

                        var region = regs.FirstOrDefault(r => r.Number == regionNum);
                        if (region == null)
                        {
                            region = new Region
                            {
                                Name = string.Format("Region {0}", regionNum),
                                Number = regionNum
                            };
                            _ctx.Regions.Add(region);
                        }

                        var district = dists.FirstOrDefault(r => r.Number == districtNum);
                        if (district == null)
                        {
                            district = new District
                            {
                                Name = record[4],
                                Number = districtNum,
                                Region_Id = region.Id
                            };
                            _ctx.Districts.Add(district);
                        }

                        var campus = camps.FirstOrDefault(r => r.Number == campusNum);
                        if (campus == null)
                        {
                            campus = new Campus
                            {
                                Name = record[5],
                                Number = campusNum,
                                District_Id = district.Id
                            };
                            _ctx.Campuses.Add(campus);
                        }

                        //TODO ctx.SaveChanges();
                        campusId = campus.Id;
                    }

                    if (previousSubject != record[8])
                    {
                        subject = subjs.Single(s => s.Name == record[8]);
                    }

                    if (previousDemographic != record[9])
                    {
                        dd = dems.Single(s => s.Detail == record[9]);
                    }

                    if (previousCategory != record[10])
                    {
                        cd = cats.Single(s => s.Detail == record[10]);
                    }


                    //for each complex header whose category matches the current category make a demo and value

                    campusTests.Add(new StaarTest
                    {
                        Campus_Id = campusId,
                        CategoryDetail_Id = cd.Id,
                        DemographicDetail_Id = dd.Id,
                        Subject_Id = subject.Id,
                        Year = year,
                        Language_Id = language.Id,
                        Value = Convert.ToDecimal(record[11]),
                        Grade = record[6]
                    });

                    if (campusTests.Count >= 90000 || i == sortedCount - 1)
                    {
                        //ctx.BulkInsert(campusTests);
                        campusTests = new List<StaarTest>(90005);
                    }

                    previousCampus = record[0];
                    previousSubject = record[8];
                    previousDemographic = record[9];
                    previousCategory = record[10];
                }
                catch (Exception ex)
                {
                    log.WriteLine("Message - {0}\r\nStackTrace - {1}", ex.Message, ex.StackTrace);
                    //throw;
                }
                finally
                {
                    log.Flush();
                    log.Close();
                }
            }
            //TODO ctx.SaveChanges();
            log.Flush();
            log.Close();
        }
Exemplo n.º 2
0
        public void PopulateDatabaseFromUnpivotedStaarTestDirectory(string parsedFilesDirectory, string logPath)
        {
            var completed = _ctx.StaarTests
                        .GroupBy(s => new
                        {
                            s.Year,
                            Subject = s.Subject.Name,
                            s.Grade,
                            s.Language.Name
                        })
                        .Select(s => new Complete
                        {
                            Year = s.Key.Year,
                            SubjectName = s.Key.Subject,
                            Grade = s.Key.Grade,
                            Language = s.Key.Name
                        }).ToList();
            var firstTime = true;
            string previousSubject = "",
                previousDemographic = "",
                previousCategory = "";
            var subject = new Subject();
            var dd = new DemographicDetail();
            var cd = new CategoryDetail();
            var log = File.CreateText(logPath);
            //     0        1       2       3           4       5       6       7               8       9           10          11    
            //     CAMPUS	YEAR	REGION	DISTRICT	DNAME	CNAME	Grade	LanguageEnum	Subject	Demographic	Category	Value


            foreach (var unzippedFile in Directory.GetFiles(parsedFilesDirectory, "*.csv", SearchOption.TopDirectoryOnly))
            {
                #region initialize

                var dems = new List<DemographicDetail>();
                var cats = new List<CategoryDetail>();
                var subjs = new List<Subject>();
                var camps = new List<Campus>();
                var dists = new List<District>();
                var regs = new List<Region>();
                var availableLanguages = new List<Language>();

                #endregion
                try
                {
                    var testsToAdd = new List<StaarTest>(90005);


                    //enumerate through file and grab rows we need.

                    List<string[]> testsNotInDb;
                    try
                    {
                        testsNotInDb = File.ReadLines(unzippedFile)
                        .Select(row => row.Split(','))
                        .Where(row => completed.All(c =>
                            c.Grade != row[6] &&
                            c.SubjectName != row[8] &&
                            c.Language != row[7] &&
                            c.Year.ToString().Substring(2, 2) != row[1]))
                        .ToList();
                        testsNotInDb.RemoveAt(0);

                        if (testsNotInDb.Count == 0)
                        {
                            log.WriteLine("{0} has had all recordes uploaded already", unzippedFile);
                            continue;
                        }
                        if (testsNotInDb[0].Length != 12)
                        {
                            log.WriteLine("{0} is not in the format of a parsed file", unzippedFile);
                            continue;
                        }
                    }
                    catch (Exception ex)
                    {
                        log.WriteLine("An error occured reading from {0}. The error is: {1}", unzippedFile, ex.Message);
                        continue;
                    }



                    //by this point, we know we have to know things

                    if (firstTime)
                    {
                        dems = _ctx.DemographicDetails.ToList();
                        cats = _ctx.CategoryDetails.ToList();
                        subjs = _ctx.Subjects.ToList();
                        camps = _ctx.Campuses.ToList();
                        dists = _ctx.Districts.ToList();
                        regs = _ctx.Regions.ToList();
                        availableLanguages = _ctx.Languages.ToList();
                        firstTime = false;
                    }


                    //get bits from file

                    var sortedCount = testsNotInDb.Count;
                    var fileLanguage = availableLanguages.Single(l => l.Name == testsNotInDb[0][7]);

                    var fileYear = int.Parse(testsNotInDb[0][1]);
                    if (fileYear >= 90 && fileYear < 100) fileYear += 1900;
                    else if (fileYear < 90) fileYear += 2000;


                    #region add all campuses first

                    var campusGroups = testsNotInDb.GroupBy(s => new
                    {
                        CampusNumber = Convert.ToInt32(s[0]),
                        Year = s[1],
                        RegionNumber = Convert.ToInt32(s[2]),
                        DistrictNumber = Convert.ToInt32(s[3]),
                        Dname = s[4],
                        Cname = s[5],

                    })
                        .Select(s => new
                        {
                            s.Key.CampusNumber,
                            s.Key.Year,
                            s.Key.RegionNumber,
                            s.Key.DistrictNumber,
                            s.Key.Dname,
                            s.Key.Cname
                        }).ToList();

                    var newRegs = new List<Region>();
                    var newDist = new List<District>();
                    var newCamps = new List<Campus>();

                    foreach (var campusGroup in campusGroups)
                    {
                        //Find the school. Create if not new

                        var campusNum = campusGroup.CampusNumber;
                        var regionNum = campusGroup.RegionNumber;
                        var districtNum = campusGroup.DistrictNumber;


                        //check region, district, and campus

                        var region = regs.FirstOrDefault(r => r.Number == regionNum);
                        if (region == null)
                        {
                            region = new Region
                            {
                                Name = string.Format("Region {0}", regionNum),
                                Number = regionNum
                            };
                            regs.Add(region);
                            newRegs.Add(region);
                        }

                        var district = dists.FirstOrDefault(r => r.Number == districtNum);
                        if (district == null)
                        {
                            district = new District
                            {
                                Name = campusGroup.Dname,
                                Number = districtNum,
                                Region = region
                            };
                            dists.Add(district);
                            newDist.Add(district);
                        }

                        var campus = camps.FirstOrDefault(r => r.Number == campusNum);
                        if (campus == null)
                        {
                            campus = new Campus
                            {
                                Name = campusGroup.Cname,
                                Number = campusNum,
                                District = district
                            };
                            camps.Add(campus);
                            newCamps.Add(campus);
                        }

                    }
                    _ctx.Regions.AddRange(newRegs);
                    _ctx.Districts.AddRange(newDist);
                    _ctx.Campuses.AddRange(newCamps);
                    _ctx.SaveChanges();

                    #endregion


                    #region go through records

                    for (var i = 0; i < sortedCount; i++)
                    {
                        var record = testsNotInDb[i];

                        var campusId = camps.First(c => c.Number == Convert.ToInt32(record[0])).Id;

                        //get new stuff

                        if (previousSubject != record[8])
                        {
                            subject = subjs.Single(s => s.Name == record[8]);
                        }

                        if (previousDemographic != record[9])
                        {
                            dd = dems.Single(s => s.Detail == record[9]);
                        }

                        if (previousCategory != record[10])
                        {
                            cd = cats.Single(s => s.Detail == record[10]);
                        }


                        //for each complex header whose category matches the current category make a demo and value

                        testsToAdd.Add(new StaarTest
                        {
                            Campus_Id = campusId,
                            CategoryDetail_Id = cd.Id,
                            DemographicDetail_Id = dd.Id,
                            Subject_Id = subject.Id,
                            Year = fileYear,
                            Language_Id = fileLanguage.Id,
                            Value = Convert.ToDecimal(record[11]),
                            Grade = record[6]
                        });

                        if (testsToAdd.Count >= 90000 || i == sortedCount - 1)
                        {
                            _ctx.BulkInsert(testsToAdd);
                            testsToAdd = new List<StaarTest>(90005);
                        }

                        previousSubject = record[8];
                        previousDemographic = record[9];
                        previousCategory = record[10];

                    }

                    #endregion


                    //add processed files to completed

                    var groupedImportsToComplete = testsNotInDb.GroupBy(s => new
                    {
                        Year = fileYear,
                        SubjectName = s[8],
                        Grade = s[6],
                        Langauge = fileLanguage.Name
                    }).Select(i => new Complete
                    {
                        Year = i.Key.Year,
                        SubjectName = i.Key.SubjectName,
                        Grade = i.Key.Grade,
                        Language = i.Key.Langauge
                    }).ToList();
                    completed.AddRange(groupedImportsToComplete);
                    log.WriteLine("{0} successfully uploaded", unzippedFile);


                    //memory management

                    testsNotInDb.Clear();
                    testsNotInDb = null;
                }
                catch (Exception ex)
                {
                    log.WriteLine("{0}\r\n{1}", ex.Message, ex.StackTrace);
                }
            }

            log.Flush();
            log.Close();
        }