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using System;
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using System.Collections.Generic;
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using System.IO;
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using ServerApp.Parser.InputData;
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using ServerApp.Parser.OutputInfo;
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namespace ServerApp.Parser.Parsers
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{
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/// <summary>
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/// Class parsing jis files into instances of ActivityInfo divided by given time interval
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/// Data parsed from 7am (included) to 18pm (included)
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/// </summary>
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/// <author>Alex Konig</author>
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class JisParser
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{
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/// <summary> Datafile loader </summary>
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DataLoader loader;
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="loader">Datafile loader</param>
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public JisParser(DataLoader loader)
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{
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this.loader = loader;
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}
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/// <summary>
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/// Parses jis data to ActivityInfo instances
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/// Data parsed from 7am (included) to 18pm (included)
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/// </summary>
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/// <param name="folder">Folder with login data files</param>
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/// <param name="wholeDay">Should data be parsed as one instance per day (if true parameter interval will be ignored)</param>
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/// <param name="interval">Time interval to divide days by, minimum is 1h</param>
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/// <returns></returns>
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public List<ActivityInfo> ParseJisData(string folder, bool wholeDay = true, int interval = 1)
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{
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if (!Directory.Exists(folder))
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return null;
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List<ActivityInfo> list = new List<ActivityInfo>();
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// parse all files
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string[] fileEntries = Directory.GetFiles(folder);
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foreach (string fileName in fileEntries)
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{
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List<ActivityInfo> loadedData = null;
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// parse as one instance per day
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if (wholeDay)
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loadedData = ProcessOneJisFileAsDays(fileName);
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// parse by interval length
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else
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loadedData = ProcessOneJisFileAsIntervals(fileName, interval);
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list.AddRange(loadedData);
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}
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return list;
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}
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/// <summary>
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/// Parses data from one data file as one instance per day
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/// </summary>
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/// <param name="path">Path ti file</param>
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/// <returns>List with ActivityInfo instances</returns>
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private List<ActivityInfo> ProcessOneJisFileAsDays(string path)
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{
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if (!File.Exists(path))
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return null;
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List<ActivityInfo> jisInfo = new List<ActivityInfo>();
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List<JisInstance> list = loader.LoadJisFile(path);
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// data for each faculty
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int[] recordedAmount = new int[TagInfo.faculties.Length];
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// min/max hour taken into account
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int[] minmaxHour = new int[] { 7, 18 };
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// interval length
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int range = minmaxHour[1] - minmaxHour[0];
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// first day
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DateTime lastStartTime = new DateTime(list[0].dateTime.Year, list[0].dateTime.Month, list[0].dateTime.Day, minmaxHour[0], 0, 0);
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for (int i = 0; i < list.Count; i++)
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{
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int currHour = list[i].dateTime.Hour;
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if (currHour < minmaxHour[0] || currHour > minmaxHour[1])
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continue;
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// start of the day -> make an instance
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string place = list[i].placeTag;
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DateTime date = new DateTime(list[i].dateTime.Year, list[i].dateTime.Month, list[i].dateTime.Day, minmaxHour[0], 0, 0);
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if (!date.Equals(lastStartTime))
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{
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// data for each faculty separate
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for (int k = 0; k < TagInfo.faculties.Length; k++)
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{
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ActivityInfo dayInfo = new ActivityInfo(TagInfo.faculties[k], recordedAmount[k], lastStartTime, range);
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jisInfo.Add(dayInfo);
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}
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recordedAmount = new int[TagInfo.faculties.Length];
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lastStartTime = date;
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}
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// aggregate data
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if (TagInfo.jisPlaces.ContainsKey(place))
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{
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int index = TagInfo.jisPlaces[place];
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if (index == -1)
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for (int l = 0; l < TagInfo.faculties.Length; l++)
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recordedAmount[l] += list[i].amount;
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else
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recordedAmount[index] += list[i].amount;
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}
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else
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{
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// TODO uknown code handling
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Console.WriteLine("Unknown code " + list[i].placeTag);
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}
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}
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// last day
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for (int k = 0; k < TagInfo.faculties.Length; k++)
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{
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ActivityInfo dayInfo = new ActivityInfo(TagInfo.faculties[k], recordedAmount[k], lastStartTime, range);
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jisInfo.Add(dayInfo);
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}
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return jisInfo;
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}
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/// <summary>
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/// Parses data from one data file as instance per interval length in a day
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/// </summary>
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/// <param name="path">Path ti file</param>
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/// <param name="interval">Interval length</param>
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/// <returns>List with ActivityInfo instances</returns>
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private List<ActivityInfo> ProcessOneJisFileAsIntervals(string path, int interval)
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{
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if (!File.Exists(path))
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return null;
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List<ActivityInfo> jisInfo = new List<ActivityInfo>();
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List<JisInstance> list = loader.LoadJisFile(path);
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// data for each faculty
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int[] recordedAmount = new int[TagInfo.faculties.Length];
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// min/max hour taken into account
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int[] minmaxHour = new int[] { 7, 18 };
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int range = minmaxHour[1] - minmaxHour[0];
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if (interval > range)
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return null;
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int indices = (int) Math.Ceiling(range / (double)interval);
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int[] to = new int[indices];
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for (int i = 0; i < to.Length; i++)
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to[i] = minmaxHour[0] + interval * (i+1);
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// first day
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DateTime lastStartTime = new DateTime(list[0].dateTime.Year, list[0].dateTime.Month, list[0].dateTime.Day, minmaxHour[0], 0, 0);
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int endtime = to[0];
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int startTime = minmaxHour[0];
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int index = 0;
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for (int i = 0; i < list.Count; i++)
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{
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int currHour = list[i].dateTime.Hour;
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if (currHour < minmaxHour[0] || currHour > minmaxHour[1])
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continue;
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// start of the day -> make an instance
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string place = list[i].placeTag;
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bool trigger = false;
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DateTime date = new DateTime(list[i].dateTime.Year, list[i].dateTime.Month, list[i].dateTime.Day, list[i].dateTime.Hour, 0, 0);
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// end of the day
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if (!(date.Year == lastStartTime.Year && date.Month == lastStartTime.Month && date.Day == lastStartTime.Day))
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{
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trigger = true;
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index = 0;
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}
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// end of interval period
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if ( date.Hour >= endtime || trigger)
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{
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// start time of last interval
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DateTime stTime = new DateTime(lastStartTime.Year, lastStartTime.Month, lastStartTime.Day, startTime, 0, 0);
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// find end and start time
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if (!trigger)
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index++;
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while (date.Hour >= to[index])
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index++;
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endtime = to[index];
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if (index == 0)
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startTime = minmaxHour[0];
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else
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startTime = to[index - 1];
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// data for each faculty separate
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for (int k = 0; k < TagInfo.faculties.Length; k++)
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{
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ActivityInfo dayInfo = new ActivityInfo(TagInfo.faculties[k], recordedAmount[k], stTime, interval);
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jisInfo.Add(dayInfo);
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}
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recordedAmount = new int[TagInfo.faculties.Length];
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lastStartTime = date;
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}
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// aggregate data
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if (TagInfo.jisPlaces.ContainsKey(place))
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{
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int faculty = TagInfo.jisPlaces[place];
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if (faculty == -1)
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for (int l = 0; l < TagInfo.faculties.Length; l++)
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recordedAmount[l] += list[i].amount;
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else
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recordedAmount[faculty] += list[i].amount;
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}
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else
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{
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// TODO uknown code handling
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Console.WriteLine("Unknown code " + list[i].placeTag);
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}
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}
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// last day
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for (int k = 0; k < TagInfo.faculties.Length; k++)
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{
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ActivityInfo dayInfo = new ActivityInfo(TagInfo.faculties[k], recordedAmount[k], lastStartTime, interval);
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jisInfo.Add(dayInfo);
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}
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return jisInfo;
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}
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}
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}
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