automaticdatabaseupdate.FileHandler.java Source code

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Here is the source code for automaticdatabaseupdate.FileHandler.java

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package automaticdatabaseupdate;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.commons.io.*;

/**
 *
 * @author Dzskom
 */
public class FileHandler {

    /**
     *
     * @param strFilePath    - path of given file          e.g. "D:\\EGYETEM\\Szakdolgozat\\Mernoki_tervezes\\update files\\sr28upd\\ADD_NUTR.txt"
     * @param strFileType    - type of the given file      e.g. AddFood
     * @param TList          - list to fill with data      e.g. List<FileFoodStruct> ListFFS
     */
    public static <T> void readFile(String strFilePath, List<T> TList, String strFileType) {
        TList.clear();

        try {

            File file = FileUtils.getFile(strFilePath);
            LineIterator iter = FileUtils.lineIterator(file);

            while (iter.hasNext()) {
                String strLine = iter.next();

                switch (strFileType) {
                case "ADD_FOOD": {
                    ArrayList<String> strList = ParseUpdateFile(strLine);
                    FileFoodStruct Object = new FileFoodStruct(Integer.valueOf(strList.get(0)), strList.get(2),
                            strList.get(3), Integer.valueOf(strList.get(8)));
                    TList.add((T) Object);
                    System.out.println(Object.toString());
                    break;
                }
                case "ADD_NUTR": {
                    ArrayList<String> strList = ParseUpdateFile(strLine);
                    FileNutrientStruct Object = new FileNutrientStruct(Integer.valueOf(strList.get(0)),
                            Integer.valueOf(strList.get(1)), Double.valueOf(strList.get(2)));
                    TList.add((T) Object);
                    System.out.println(Object.toString());
                    break;
                }
                case "ADD_WGT": {
                    ArrayList<String> strList = ParseUpdateFile(strLine);
                    FileWeightStruct Object = new FileWeightStruct(Integer.valueOf(strList.get(0)),
                            Double.valueOf(strList.get(2)), strList.get(3), Double.valueOf(strList.get(4)));
                    TList.add((T) Object);
                    System.out.println(Object.toString());
                    break;
                }
                case "CHG_FOOD": {
                    ArrayList<String> strList = ParseUpdateFile(strLine);
                    FileFoodStruct Object = new FileFoodStruct(Integer.valueOf(strList.get(0)), strList.get(2),
                            strList.get(3), Integer.valueOf(strList.get(8)));
                    TList.add((T) Object);
                    System.out.println(Object.toString());
                    break;
                }
                case "CHG_NUTR": {
                    ArrayList<String> strList = ParseUpdateFile(strLine);
                    FileNutrientStruct Object = new FileNutrientStruct(Integer.valueOf(strList.get(0)),
                            Integer.valueOf(strList.get(1)), Double.valueOf(strList.get(2)));
                    TList.add((T) Object);
                    System.out.println(Object.toString());
                    break;
                }
                case "CHG_WGT": {
                    ArrayList<String> strList = ParseUpdateFile(strLine);
                    FileWeightStruct Object = new FileWeightStruct(Integer.valueOf(strList.get(0)),
                            Double.valueOf(strList.get(2)), strList.get(3), Double.valueOf(strList.get(4)));
                    TList.add((T) Object);
                    System.out.println(Object.toString());
                    break;
                }
                case "DEL_FOOD": {
                    ArrayList<String> strList = ParseUpdateFile(strLine);
                    FileFoodStruct Object = new FileFoodStruct(Integer.valueOf(strList.get(0)), strList.get(1));
                    TList.add((T) Object);
                    System.out.println(Object.toString());
                    break;
                }
                case "DEL_NUTR": {
                    ArrayList<String> strList = ParseUpdateFile(strLine);
                    FileNutrientStruct Object = new FileNutrientStruct(Integer.valueOf(strList.get(0)),
                            Integer.valueOf(strList.get(1)));
                    TList.add((T) Object);
                    System.out.println(Object.toString());
                    break;
                }
                case "DEL_WGT": {
                    ArrayList<String> strList = ParseUpdateFile(strLine);
                    FileWeightStruct Object = new FileWeightStruct(Integer.valueOf(strList.get(0)),
                            Double.valueOf(strList.get(2)), strList.get(3), Double.valueOf(strList.get(4)));
                    TList.add((T) Object);
                    System.out.println(Object.toString());
                    break;
                }
                case "LOG_FILE": {
                    ArrayList<String> strList = ParseLogFile(strLine);
                    TraceMessage Object = new TraceMessage(strList.get(0), strList.get(1));
                    TList.add((T) Object);
                    break;
                }
                }
            }
            //System.out.println( "Total line: " + moduleCounter );
            iter.close();

        } catch (IOException ex) {
            Logger.getLogger(FileHandler.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
    /*
    public static void readFile(String FilePath) throws IOException
    {
    // "D:\\EGYETEM\\Szakdolgozat\\sr28upd\\ADD_FOOD.txt"
    BufferedReader br = new BufferedReader(new FileReader(FilePath));
        
    String line = null;
    int cnt = 0;
    while((line=br.readLine())!=null)
    {
    cnt++;
    System.out.println(line);
    ArrayList<String> list = (ArrayList<String>) parseString(line);
    for(int i_List=0; i_List<list.size(); i_List++)
    {
    System.out.print(list.get(i_List) + " | ");
    }
    System.out.print("\n");
    }
    System.out.println(cnt);
    }
    */

    /**
     *
     * @param strRawString  - param to be tokenized
     * @return              - return string list of tokens
     */
    private static ArrayList<String> ParseUpdateFile(String strRawString) {
        ArrayList<String> strList = new ArrayList<>();
        strList.clear();

        String[] tokens = strRawString.split("[\\^]"); /* old regex: "[\\^.\\^.]" */
        for (int i = 0; i < tokens.length; i++) {
            tokens[i] = tokens[i].replaceAll("~", "");
            if (tokens[i].equals(""))
                strList.add("0");
            else
                strList.add(tokens[i]);
        }

        return strList;
    }

    private static ArrayList<String> ParseLogFile(String strRawString) {
        ArrayList<String> strList = new ArrayList<>();
        strList.clear();

        if (strRawString.matches(".*\\[.*\\].*")) {
            String[] tokens = strRawString.split("\\s*-\\s*");
            strList.add(tokens[0]);
            strList.add(tokens[1]);
        } else {
            strList.add("");
            strList.add(strRawString);
        }

        return strList;
    }

    public static void WriteTraceMessagesToFile(File file, ArrayList<TraceMessage> listMessages) {
        try {
            FileUtils.writeLines(file, listMessages);
        } catch (IOException ex) {
            Logger.getLogger(FileHandler.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    public static void main(String[] args) throws IOException {

        /*
        TODO
        . karaktert NULL-nak veszi, a parser kln elemknt kezeli -> parser trsa -- DONE
        tbbi fjl olvassa, hogy minden mkdik-e
        */
    }
}