annotate FileList.java @ 52:76e99859bdb4 tip

Add class files for previous changes.

/*=============================================================================
 * File:       FileList.java
 * Author:     Marcus Pearce <[e-mail]>
 * Created:    <2007-11-30 10:30:38 marcusp>
 * Time-stamp: <2012-03-01 09:35:00 marcusp>
 *=============================================================================
 */

import java.util.ArrayList; 
import java.util.Iterator;

import java.io.*;

import java.util.Random;

public class FileList { 

    private ArrayList files; 
    private ArrayList probes; 
    private int numFiles; 
    private int currentFileIndex;

    public int numFiles() { return numFiles; }
    public void setFileIndex(int i) { currentFileIndex = i; }

    public String currentFile() { 
        if (currentFileIndex < numFiles)
            return (String)files.get(currentFileIndex); 
        else 
            return null; 
    }

    public ArrayList currentProbes() { 
        if (currentFileIndex < numFiles)
            return (ArrayList)probes.get(currentFileIndex); 
        else 
            return null; 
    }
     
    public void incrementFileIndex() { 
        currentFileIndex = currentFileIndex + 1; 
    }

    private void randomise() { 
        Random rgen = new Random();  
        for (int i = 0; i < numFiles; i++) {
            int randomPosition = rgen.nextInt(numFiles);
            // System.out.println("i = " + i + "; rpos = " + randomPosition + 
            //                    "; files = " + files.size() + 
            //                    "; probes = " + probes.size());
            
            String tempFile = (String)files.get(i);
            files.set(i, files.get(randomPosition)); 
            files.set(randomPosition, tempFile); 
            
            ArrayList tempProbe = (ArrayList)probes.get(i); 
            probes.set(i, probes.get(randomPosition));
            probes.set(randomPosition, tempProbe); 
        }
    }
    
    private void importFileList(String filename) {
        try { 
            LineNumberReader lnr = 
                new LineNumberReader(new FileReader(new File(filename)));
            lnr.setLineNumber(1);
            StreamTokenizer stok = new StreamTokenizer(lnr);
            stok.parseNumbers();
            stok.wordChars('_','_'); 
            stok.wordChars('0','9');
            //stok.wordChars('/','/');             
            stok.eolIsSignificant(true);
            stok.nextToken();
            while (stok.ttype != StreamTokenizer.TT_EOF) {
                int lineno = lnr.getLineNumber();
                int i = 0;
                ArrayList iprobes = new ArrayList(); 
                while (stok.ttype != StreamTokenizer.TT_EOL) {
                    int j = 0; 
                    if (stok.ttype == StreamTokenizer.TT_NUMBER) { 
                        iprobes.add((int)stok.nval - 1); // zero indexing
                    } else if (stok.ttype == StreamTokenizer.TT_WORD) { 
                        files.add(stok.sval);
                    }
                    stok.nextToken();     
                }
                i++; 
                numFiles++; 
                probes.add(iprobes); 
                stok.nextToken();
            }
        } catch(Exception e) {
            System.out.println("Exception: " + e);
        }
    }

    public void print() { 
        Iterator fi = files.iterator(); 
        Iterator pi = probes.iterator(); 
        while (fi.hasNext()) {
            System.out.print((String)fi.next() + ": "); 
            ArrayList ip = (ArrayList)pi.next();

            for (int i = 0; i < ip.size(); i++) { 
                int ppos = ((Integer)ip.get(i)).intValue() + 1;
                System.out.print(ppos + " ");
            }
            System.out.print("\n");
        }
    }

    public FileList(String filename) { 
        files = new ArrayList(); 
        probes = new ArrayList(); 
        currentFileIndex = 0; 
        this.importFileList(filename);
        this.randomise(); 
        this.print(); 
    }
}