m@0: /*=============================================================================
m@0:  * File:       FileList.java
m@0:  * Author:     Marcus Pearce <m.pearce@gold.ac.uk>
m@0:  * Created:    <2007-11-30 10:30:38 marcusp>
marcus@20:  * Time-stamp: <2012-03-01 09:35:00 marcusp>
m@0:  *=============================================================================
m@0:  */
m@0: 
m@0: import java.util.ArrayList; 
m@0: import java.util.Iterator;
m@0: 
m@0: import java.io.*;
m@0: 
m@0: import java.util.Random;
m@0: 
m@0: public class FileList { 
m@0: 
m@0:     private ArrayList files; 
m@0:     private ArrayList probes; 
m@0:     private int numFiles; 
m@0:     private int currentFileIndex;
m@0: 
m@0:     public int numFiles() { return numFiles; }
m@0:     public void setFileIndex(int i) { currentFileIndex = i; }
m@0: 
m@0:     public String currentFile() { 
m@0:         if (currentFileIndex < numFiles)
m@0:             return (String)files.get(currentFileIndex); 
m@0:         else 
m@0:             return null; 
m@0:     }
m@0: 
m@0:     public ArrayList currentProbes() { 
m@0:         if (currentFileIndex < numFiles)
m@0:             return (ArrayList)probes.get(currentFileIndex); 
m@0:         else 
m@0:             return null; 
m@0:     }
m@0:      
m@0:     public void incrementFileIndex() { 
m@0:         currentFileIndex = currentFileIndex + 1; 
m@0:     }
m@0: 
m@0:     private void randomise() { 
m@0:         Random rgen = new Random();  
m@0:         for (int i = 0; i < numFiles; i++) {
m@0:             int randomPosition = rgen.nextInt(numFiles);
m@0:             // System.out.println("i = " + i + "; rpos = " + randomPosition + 
m@0:             //                    "; files = " + files.size() + 
m@0:             //                    "; probes = " + probes.size());
m@0:             
m@0:             String tempFile = (String)files.get(i);
m@0:             files.set(i, files.get(randomPosition)); 
m@0:             files.set(randomPosition, tempFile); 
m@0:             
m@0:             ArrayList tempProbe = (ArrayList)probes.get(i); 
m@0:             probes.set(i, probes.get(randomPosition));
m@0:             probes.set(randomPosition, tempProbe); 
m@0:         }
m@0:     }
m@0:     
m@0:     private void importFileList(String filename) {
m@0:         try { 
m@0:             LineNumberReader lnr = 
m@0:                 new LineNumberReader(new FileReader(new File(filename)));
m@0:             lnr.setLineNumber(1);
m@0:             StreamTokenizer stok = new StreamTokenizer(lnr);
m@0:             stok.parseNumbers();
m@0:             stok.wordChars('_','_'); 
m@0:             stok.wordChars('0','9');
m@0:             //stok.wordChars('/','/');             
m@0:             stok.eolIsSignificant(true);
m@0:             stok.nextToken();
m@0:             while (stok.ttype != StreamTokenizer.TT_EOF) {
m@0:                 int lineno = lnr.getLineNumber();
m@0:                 int i = 0;
m@0:                 ArrayList iprobes = new ArrayList(); 
m@0:                 while (stok.ttype != StreamTokenizer.TT_EOL) {
m@0:                     int j = 0; 
m@0:                     if (stok.ttype == StreamTokenizer.TT_NUMBER) { 
m@0:                         iprobes.add((int)stok.nval - 1); // zero indexing
m@0:                     } else if (stok.ttype == StreamTokenizer.TT_WORD) { 
m@0:                         files.add(stok.sval);
m@0:                     }
m@0:                     stok.nextToken();     
m@0:                 }
m@0:                 i++; 
m@0:                 numFiles++; 
m@0:                 probes.add(iprobes); 
m@0:                 stok.nextToken();
m@0:             }
m@0:         } catch(Exception e) {
m@0:             System.out.println("Exception: " + e);
m@0:         }
m@0:     }
m@0: 
m@0:     public void print() { 
m@0:         Iterator fi = files.iterator(); 
m@0:         Iterator pi = probes.iterator(); 
m@0:         while (fi.hasNext()) {
m@0:             System.out.print((String)fi.next() + ": "); 
m@0:             ArrayList ip = (ArrayList)pi.next();
marcus@20: 
marcus@20:             for (int i = 0; i < ip.size(); i++) { 
marcus@20:                 int ppos = ((Integer)ip.get(i)).intValue() + 1;
marcus@20:                 System.out.print(ppos + " ");
marcus@20:             }
m@0:             System.out.print("\n");
m@0:         }
m@0:     }
m@0: 
m@0:     public FileList(String filename) { 
m@0:         files = new ArrayList(); 
m@0:         probes = new ArrayList(); 
m@0:         currentFileIndex = 0; 
m@0:         this.importFileList(filename);
m@0:         this.randomise(); 
m@0:         this.print(); 
m@0:     }
m@0: }