package com.jspsmart.upload;

import java.io.IOException;
import java.util.Collection;
import java.util.Enumeration;
import java.util.Hashtable;

public class Files
{
  private SmartUpload m_parent;
  private Hashtable m_files;
  private int m_counter;

  Files()
  {
    this.m_files = new Hashtable();
    this.m_counter = 0;
  }

  protected void addFile(File file)
  {
    if (file == null)
    {
      throw new IllegalArgumentException("newFile cannot be null.");
    }

    this.m_files.put(new Integer(this.m_counter), file);
    this.m_counter += 1;
  }

  public File getFile(int i)
  {
    if (i < 0)
      throw new IllegalArgumentException("File's index cannot be a negative value (1210).");
    File file = (File)this.m_files.get(new Integer(i));
    if (file == null)
      throw new IllegalArgumentException("Files' name is invalid or does not exist (1205).");

    return file;
  }

  public int getCount()
  {
    return this.m_counter;
  }

  public long getSize()
    throws IOException
  {
    long l = 0L;
    for (int i = 0; i < this.m_counter; ++i)
      l += getFile(i).getSize();

    return l;
  }

  public Collection getCollection()
  {
    return this.m_files.values();
  }

  public Enumeration getEnumeration()
  {
    return this.m_files.elements();
  }
}