Source Code : CSV Writer

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CSV Writer

  
/*
PearReview - The peer review assistant.
Copyright (C) 2009  Dimitrij Pankratz, Anton Musichin
http://www.pearreview.com, info@pearreview.com

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

//package com.pearreview.util.csv;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Serializable;

public class CSVWriter implements Serializable {
  private static final long serialVersionUID = 2444199148253681816L;

  public static final char COMMA_SEPARATOR = 0x2C;
  public static final char COLON_SEPARATOR = 0x3A;
  public static final char SEMICOLON_SEPARATOR = 0x3B;
  public static final char TABULATOR_SEPARATOR = 0x09;

  /**
   * Writes a table model to csv formatted file
   * 
   * @param file
   *            file to create
   * @param model
   *            model to write
   * @throws IOException
   */
  public void write(File file, CSVTableModel model, char separator)
      throws IOException {
    /* create file */
    FileWriter fw = new FileWriter(file);
    BufferedWriter bw = new BufferedWriter(fw);

    String value;

    /* write columns */
    if (model.areColumnsVisible()) {
      for (int column = 0; column < model.getColumnCount(); column++) {
        value = encodeValue(model.getColumnName(column), separator);
        bw.write(value);
        if (column < model.getColumnCount() - 1) {
          bw.write(separator);
        } else {
          bw.newLine();
        }
      }
    }

    /* write data */
    for (int row = 0; row < model.getRowCount(); row++) {
      for (int column = 0; column < model.getColumnCount(); column++) {
        value = encodeValue(model.getValueAt(row, column), separator);
        bw.write(value);
        if (column < model.getColumnCount() - 1) {
          bw.write(separator);
        } else {
          bw.newLine();
        }
      }
    }

    /* close file */
    bw.close();
  }

  protected String encodeValue(String value, char separator) {
    return """ + value + """;
  }
}

interface CSVTableModel {
  public String getValueAt(int row, int column);

  public int getColumnCount();

  public int getRowCount();

  public String getColumnName(int column);

  public boolean areColumnsVisible();
}

   
    
  

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