downloadtable.java

java 多线程文件下载器源代码......

package com.sam.net.download;

import java.util.ArrayList;
import java.util.Observable;
import java.util.Observer;

import javax.swing.ImageIcon;
import javax.swing.JProgressBar;
import javax.swing.table.AbstractTableModel;


public class DownloadTable extends AbstractTableModel implements Observer{
	public static final String[] columnNames={"状态","文件名","文件路径","文件大小","下载进度","文件类型","用时"};
	public static final Class[] columnClasses={String.class,String.class,String.class,Long.class,JProgressBar.class,String.class,String.class};
	public ArrayList<Search> sourceList = new ArrayList<Search>();

    public Search getDownload(int index) {
        return sourceList.get(index);
    }
	
	public int getColumnCount() {
		return columnNames.length;
	}

	public int getRowCount() {
		// TODO Auto-generated method stub
		return sourceList.size();
	}
	
	 public String getColumnName(int col) {
	        return columnNames[col];
	    }

	    public Class getColumnClass(int col) {
	        return columnClasses[col];
	    }
	    
	    public void addSource(Search search) {
			   search.addObserver(this);
		       sourceList.add(search);
		       fireTableRowsInserted(getRowCount()-1,getRowCount()-1);
		    }

	    public void dele(int row) {
	        sourceList.remove(row);
	        fireTableRowsDeleted(row,row);
	    }

	public Object getValueAt(int row, int col) {
        Search search = (Search)sourceList.get(row);
        switch(col) {
        case 0:  
        	    return Search.STATUSES[search.getStatus()];
        case 1:
                return search.getFilename();
        case 2:
                return search.getUrl();
        case 3:
                long fileLength = search.getFileLength();
                return (fileLength == -1)?"0":fileLength;
        case 4:
                return new Float(search.getProgress());
        case 5:
                return search.getFiletype();
        case 6:
            	return search.getTime(); 
            	}
        return "";
	}

	public void update(Observable o, Object arg) {
        int index = sourceList.indexOf(o);
        fireTableRowsUpdated(index,index);
	}
}