flushaction.java

用来为垂直搜索引擎抓取数据的采集系统

package org.indigo.gui;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;

import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;

/**
 * 当点击刷新按钮时，执行此类的actionPerformed方法，重新生成
 * 左边的结构树。
 * @author wbz
 *
 */
public class FlushAction implements ActionListener{
	DefaultMutableTreeNode itsRoot=null;
	DefaultTreeModel itsTreeModel=null;
	public void actionPerformed(ActionEvent e) {
		//JTree tree=ViewManager.getInstance().getTree();
		 if(e.getActionCommand().equals("刷新"))
	        {
			 itsRoot = ViewManager.getInstance().getTreeRoot();
		        itsTreeModel = (DefaultTreeModel) ViewManager.getInstance().getTree().getModel();
		        itsRoot.removeAllChildren();
//		        ViewManager.getInstance().setItsRoot(itsRoot);
		        
		        String path="./taskconfig";
		        buildTree( path, itsRoot );
		        itsTreeModel.reload();
//		        Object o=TreePanel.getO();
//		        if(o!=null)
//		        	System.out.println(o);
//		        tree.expandPath((TreePath)o);
	        }
		
	}

	private void buildTree(String fileName, DefaultMutableTreeNode parent) {

        File source = new File( fileName );
        if( source==null )
            return ;
        String []files = source.list();
        if( files==null )
            return;
        
        for( int i=0; i<files.length; i++ )
        {
            File file = new File( source.getPath(), files[i] );
            if( file.isDirectory() )
            {
                String thePath=null, dirName=null;
                thePath = file.toString();
                dirName = file.getName();
//                System.out.println( "new: " + dirName );
//                System.out.println( "go: " + thePath );
                
                DefaultMutableTreeNode subParent = new DefaultMutableTreeNode( dirName );
                itsTreeModel.insertNodeInto( subParent, parent, parent.getChildCount() );
                buildTree( file.toString(), subParent );
            }else
            {
                String str = file.getName();
                if( str.endsWith(".task") )
                {
                    str = str.substring( 0, str.lastIndexOf(".") );
	                itsTreeModel.insertNodeInto( new DefaultMutableTreeNode(str), parent, parent.getChildCount() );
//	                System.out.println( "new: " + file );
                }
            }
        }
    
		
	}

}