package ac.essex.ooechs.imaging.commons.util; 
 
import java.io.File; 
import java.io.IOException; 
 
/** 
 * <p/> 
 * 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, 
 * provided that any use properly credits the author. 
 * 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 at http://www.gnu.org 
 * </p> 
 * 
 * @author Olly Oechsle, University of Essex, Date: 19-Nov-2007 
 * @version 1.0 
 */ 
public class CSVWriter { 
 
    protected StringBuffer buffer; 
    private boolean first; 
    private boolean emptyLine = true; 
 
    public CSVWriter() { 
        this(null); 
    } 
 
    public CSVWriter(String header) { 
        buffer = new StringBuffer(); 
        if (header != null)  { 
            buffer.append(header); 
            buffer.append("\n"); 
        } 
        first = true; 
    } 
 
    public void addData(double data) { 
        addData(String.valueOf(data)); 
    } 
 
    public void addData(int data) { 
        addData(String.valueOf(data)); 
    } 
 
    public void addData(String data) { 
        if (!first) buffer.append(","); 
        buffer.append(data); 
        emptyLine = false; 
        first = false; 
    } 
 
    public void addData(double[] data) { 
        for (int i = 0; i < data.length; i++) { 
            addData(data[i]); 
        } 
    } 
 
    public void addData(float[] data) { 
        for (int i = 0; i < data.length; i++) { 
            addData(data[i]); 
        } 
    } 
 
    public void addData(String[] data) { 
        for (int i = 0; i < data.length; i++) { 
            addData(data[i]); 
        } 
    } 
 
    public void addData(int[] data) { 
        for (int i = 0; i < data.length; i++) { 
            addData(data[i]); 
        } 
    } 
 
    public void newLine() { 
        first = true; 
        buffer.append("\n"); 
        emptyLine = true; 
    } 
 
    public void newCommentLine() { 
        if (!emptyLine) { 
            newLine(); 
        } 
        buffer.append("#"); 
    } 
 
    public String toString() { 
        return buffer.toString(); 
    } 
 
    public void save(File f) throws IOException { 
        FileIO.saveToFile(toString(), f); 
    } 
 
}