devstree.java

这是一个用java和xml编写的流媒体服务器管理软件

/*
 * ====================================================================
 * The Vovida Software License, Version 1.0
 * 
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in
 * the documentation and/or other materials provided with the
 * distribution.
 * 
 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 * and "Vovida Open Communication Application Library (VOCAL)" must
 * not be used to endorse or promote products derived from this
 * software without prior written permission. For written
 * permission, please contact [e-mail].
 * 
 * 4. Products derived from this software may not be called "VOCAL", nor
 * may "VOCAL" appear in their name, without prior written
 * permission of Vovida Networks, Inc.
 * 
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL VOVIDA
 * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
 * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 * 
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
 * <http://www.vovida.org/>.
 * 
 */

/*
 * The Apache Software License, Version 1.1
 * 
 * 
 * Copyright (c) 1999 The Apache Software Foundation.  All rights
 * reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in
 * the documentation and/or other materials provided with the
 * distribution.
 * 
 * 3. The end-user documentation included with the redistribution,
 * if any, must include the following acknowledgment:
 * "This product includes software developed by the
 * Apache Software Foundation (http://www.apache.org/)."
 * Alternately, this acknowledgment may appear in the software itself,
 * if and wherever such third-party acknowledgments normally appear.
 * 
 * 4. The names "Xerces" and "Apache Software Foundation" must
 * not be used to endorse or promote products derived from this
 * software without prior written permission. For written
 * permission, please contact [e-mail].
 * 
 * 5. Products derived from this software may not be called "Apache",
 * nor may "Apache" appear in their name, without prior written
 * permission of the Apache Software Foundation.
 * 
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation and was
 * originally based on software copyright (c) 1999, International
 * Business Machines, Inc., http://www.apache.org.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 * 
 * Based on DOMTree by Andy Clark, IBM
 * Note that the Apache license applies to the original
 * software and the Vovida license applies to changes
 * to that software.
 */
package vocal.data;

import java.util.Vector;
import java.io.Serializable;
import javax.swing.JTree;
import javax.swing.tree.TreePath;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.MutableTreeNode;
import javax.swing.tree.TreeNode;
import javax.swing.tree.TreeSelectionModel;

import org.w3c.dom.Document;
import org.w3c.dom.DocumentFragment;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.w3c.dom.Attr;
import org.w3c.dom.traversal.NodeFilter;

import java.util.Hashtable;
import java.util.Enumeration;

/**
 * This class manages the JTree that is the basis of
 * navigation through server-side provisioning.
 * This class has an outer and inner component. The outer
 * component provides an API for the GUI classes in the ui package.
 * Each type of screen (ie Marshal, Feature, Group, etc)
 * has its own pair of methods to call, either to populate
 * its textfields with data from an existing server or to set
 * it up for creating a new server.
 * <p>
 * The inner class component contains a Document Object Model
 * that holds all server data in a tree and the classes for
 * converting the nodes of this DOM to be rendered as JTree
 * nodes.
 * 
 * @author Barbara Samson, Vovida Networks
 */
public class DevsTree extends JTree implements TreeNodeTypes
{
	private JTree tree;
	private JTree tmp_tree;
	private DefaultTreeModel treeModel;
	
	public DevsTree()
	{
		DefaultMutableTreeNode root = new DefaultMutableTreeNode("EMS Server");
		DefaultMutableTreeNode subroot = new DefaultMutableTreeNode("视频机");
		DefaultMutableTreeNode subroot1 = new DefaultMutableTreeNode("环境机");
		
		DefaultMutableTreeNode dvrleaf1 = new DefaultMutableTreeNode("DVR1");
		DefaultMutableTreeNode dvrleaf2 = new DefaultMutableTreeNode("DVR2");
		DefaultMutableTreeNode dvrleaf3 = new DefaultMutableTreeNode("DVR3");
		DefaultMutableTreeNode dvrleaf4 = new DefaultMutableTreeNode("DVR4");
		DefaultMutableTreeNode dvrleaf5 = new DefaultMutableTreeNode("DVR4");
		
		DefaultMutableTreeNode envleaf1 = new DefaultMutableTreeNode("ENV1");
		DefaultMutableTreeNode envleaf2 = new DefaultMutableTreeNode("ENV2");
		DefaultMutableTreeNode envleaf3 = new DefaultMutableTreeNode("ENV3");
		DefaultMutableTreeNode envleaf4 = new DefaultMutableTreeNode("ENV4");
		
		treeModel = new DefaultTreeModel(root);			
		tree = new JTree(treeModel);		
		tree.setShowsRootHandles(true);			
		treeModel.insertNodeInto(subroot,root,0);
		treeModel.insertNodeInto(subroot1,root,1);
		
		subroot.add(dvrleaf1);
		subroot.add(dvrleaf2);
		subroot.add(dvrleaf3);
		subroot.add(dvrleaf4);
		subroot.add(dvrleaf5);
		subroot1.add(envleaf1);
		subroot1.add(envleaf2);
		subroot1.add(envleaf3);
		subroot1.add(envleaf4);
		
		//getContentPane().add(tree,BorderLayout.CENTER);
		//tree.setExpandsSelectedPaths(false);
		tree.setVisible(true);
		tree.expandRow(2);
		
		//return tree;
		
	}
	
	public int getSelectedNodeType()
	  {
	    DefaultMutableTreeNode currentNode = 
	      (DefaultMutableTreeNode) getLastSelectedPathComponent();

	    if (currentNode == null)
	    {
	      System.out.println("selected node is null");

	      return UNKNOWN;
	    }

	    DevsUserObject theObject = (DevsUserObject) (currentNode.getUserObject());

	    return theObject.getNodeType();
	  }
  
}
/**
 * There is one UserObject per DefaultMutableTreeNode.
 */
class DevsUserObject implements TreeNodeTypes
{
  private int nodeType = UNKNOWN;
  private String displayString = "";

  /**
   * 
   */
  public String toString()
  {
    return displayString;
  }

  /**
   * 
   * @param string
   */
  public void setDisplayString(String string)
  {
    displayString = string;
  }

  /**
   * 
   */
  public int getNodeType()
  {
    return nodeType;
  }

  /**
   * 
   * @param type
   * @param string
   */
  DevsUserObject(int type, String string)
  {
    nodeType = type;

    setDisplayString(string);
  }

}       // class UserObject