/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


package com.sun.star.xml.security.uno;

import javax.xml.parsers.DocumentBuilder; 
import javax.xml.parsers.DocumentBuilderFactory;  
import javax.xml.parsers.ParserConfigurationException;

import java.io.File;
import java.io.IOException;
import java.io.FileOutputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.ByteArrayInputStream;
import java.io.UnsupportedEncodingException;

import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

/* Basic GUI components */
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.JFileChooser;
import javax.swing.ToolTipManager;
import javax.swing.JTable;
import javax.swing.JLabel;
import javax.swing.BorderFactory;

/* GUI components for right-hand side */
import javax.swing.JSplitPane;
import javax.swing.JOptionPane;
import javax.swing.JTabbedPane;


/* GUI support classes */
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Container;
import java.awt.Toolkit;
import java.awt.event.WindowEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

/* For creating borders */
import javax.swing.border.EmptyBorder;
import javax.swing.border.BevelBorder;
import javax.swing.border.CompoundBorder;

/* For creating a TreeModel */
import javax.swing.tree.TreePath;
import java.util.Vector;

/* UNO classes */
import com.sun.star.uno.UnoRuntime;
import com.sun.star.bridge.XUnoUrlResolver;
import com.sun.star.lang.XMultiComponentFactory;
import com.sun.star.beans.XPropertySet;
import com.sun.star.uno.XComponentContext;
import com.sun.star.xml.sax.XDocumentHandler;

import com.sun.star.xml.crypto.*;
import com.sun.star.xml.crypto.sax.*;
	
public class TestTool extends JFrame implements ActionListener
{
	/*
	 * xml security framewrok component names
	 */
	public static String SIGNATURECREATOR_COMPONENT = "com.sun.star.xml.crypto.sax.SignatureCreator";
	public static String SIGNATUREVERIFIER_COMPONENT = "com.sun.star.xml.crypto.sax.SignatureVerifier";
	public static String ENCRYPTOR_COMPONENT = "com.sun.star.xml.crypto.sax.Encryptor";
	public static String DECRYPTOR_COMPONENT = "com.sun.star.xml.crypto.sax.Decryptor";
	public static String SAXEVENTKEEPER_COMPONENT = "com.sun.star.xml.crypto.sax.SAXEventKeeper";
	 
	/*
	 * Java-based component names
	 */
	public static String SEINITIALIZER_COMPONENT_JAVA = "com.sun.star.xml.security.bridge.jxsec.SEInitializer_JxsecImpl";
	public static String XMLSIGNATURE_COMPONENT_JAVA = "com.sun.star.xml.security.bridge.jxsec.XMLSignature_JxsecImpl";
	public static String XMLENCRYPTION_COMPONENT_JAVA = "com.sun.star.xml.security.bridge.jxsec.XMLEncryption_JxsecImpl";
	public static String XMLDOCUMENTWRAPPER_COMPONENT_JAVA = "com.sun.star.xml.security.bridge.jxsec.XMLDocumentWrapper_JxsecImpl";
					
	/*
	 * C-based component names
	 */
	public static String SEINITIALIZER_COMPONENT_C = "com.sun.star.xml.crypto.SEInitializer";
	public static String XMLSIGNATURE_COMPONENT_C = "com.sun.star.xml.crypto.XMLSignature";
	public static String XMLENCRYPTION_COMPONENT_C = "com.sun.star.xml.crypto.XMLEncryption";
	public static String XMLDOCUMENTWRAPPER_COMPONENT_C = "com.sun.star.xml.wrapper.XMLDocumentWrapper";
	
	/* url resolver name */
	public static String UNOURLRESOLVER = "com.sun.star.bridge.UnoUrlResolver";
	
	/*
	 * connection URL
	 */
	private String m_unoURL = "uno:socket,host=localhost,port=2002;urp;StarOffice.ServiceManager";
	
	/* key file */
	private String m_javaTokenFile = null;
	private String m_nssTokenPath = null;
	
	/* User Interfaces */
	private JButton m_goButton;
	private JButton m_stepButton;
	private JButton m_startButton;
	private JButton m_openButton;
	private JCheckBox m_isExportingButton;
	private JCheckBox m_isJavaComponentButton;
	private JButton m_saveButton;
	private JButton m_batchButton;
	private JTree m_leftTree;
	private JTextArea m_leftTextArea;
	private JTree m_middleTree;
	private JTree m_rightTree;
	private JTabbedPane m_leftTabPane;
	private JTextArea m_bufferNodeTextArea;
	private JLabel m_saxChainLabel;
	private JTextField m_saxEventText;
	private JTable m_unsolvedReferenceTable;
	
	/*
	 * whether a batch file is running, 
	 * if so, no message box is popped up 
	 */
	private boolean m_bIsBatchRunning = false;
	
	/* 
	 * whether the UI needs to be updated.
	 * when user click the "go" button, the UI needs
	 * not to be updated step by step for performance
	 * reason
	 */
	private boolean m_bIsUIUpdateSuppressed = false;
	
	/*
	 * three DOM tree adapter
	 */
	private DomToTreeModelAdapter m_leftTreeModelAdapter;
	private DomToTreeModelAdapter m_middleTreeModelAdapter;
	private DomToTreeModelAdapter m_rightTreeModelAdapter;

	/*
	 * the current directory, which reserves the default 
	 * location when user open/save a file.
	 */
	private File m_currentDirectory = null;
	
	/*
	 * the log file
	 */
	private FileOutputStream m_logFileOutputStream = null;
	
	/*
	 * the thread which is parsing the current XML
	 * file
	 */
	private ParsingThread m_parsingThread;
	
	/*
	 * whether is exporting or importing
	 */
	private boolean m_bIsExporting;
	
	/*
	 * whether java based component or c based component
	 * is used now
	 */
	private boolean m_bIsJavaBased;
	
	/*
	 * XML security component interface
	 */
	private XComponentContext m_xRemoteContext = null;
	private XMultiComponentFactory m_xRemoteServiceManager = null;
	private XXMLSecurityContext m_xXMLSecurityContext = null;
	private XXMLSignature m_xXMLSignature = null;
	private XXMLEncryption m_xXMLEncryption = null;
	private XSEInitializer m_xSEInitializer = null;

	/*
	 * SAX event collector for the middle tree and the right tree
	 */
	private SAXEventCollector m_rightTreeEventCollector = null;
	private SAXEventCollector m_middleTreeEventCollector = null;

	/*
	 * security framework controller
	 */
	private XMLSecurityFrameworkController m_xmlSecurityFrameworkController = null;
	
	/* org.w3c.dom.Document */
	private Document m_document;
	
	/* represents whether "Go" or "Step" */
	private boolean stepMode = true;

/**************************************************************************************
 * private methods
 **************************************************************************************/


	/******************************************************************************
	 * UI related methods
	 ******************************************************************************/

	/*
	 * initalizes the UI.
	 */
	private void initUI()
	{
		m_leftTreeModelAdapter = new DomToTreeModelAdapter(m_document);
		m_middleTreeModelAdapter = new DomToTreeModelAdapter(m_document);
		m_rightTreeModelAdapter = new DomToTreeModelAdapter(m_document);
			
		m_parsingThread = null;
			
		m_leftTree.setModel(m_leftTreeModelAdapter);
		m_middleTree.setModel(m_middleTreeModelAdapter);
		m_rightTree.setModel(m_rightTreeModelAdapter);
	}
	
	/*
	 * constructs the user interface.
	 */
	private Container buildUI(int width, int height)
	{
		JPanel mainPanel = new JPanel();
		
		int frameHeight = height-40;
		int leftWindowWidth = (width-40)/3;
		int middleWindowWidth = leftWindowWidth;
		int rightWindowWidth = leftWindowWidth;
		int leftPaneWidth = leftWindowWidth+middleWindowWidth;
		int frameWidth = leftPaneWidth + rightWindowWidth;
	
		/* Make a nice border */
		EmptyBorder emptyBorder = new EmptyBorder(5,5,5,5);
		BevelBorder bevelBorder = new BevelBorder(BevelBorder.LOWERED);
		CompoundBorder compoundBorder = new CompoundBorder(emptyBorder,bevelBorder);
		mainPanel.setBorder(new CompoundBorder(compoundBorder,emptyBorder));
		
		/* Set up the tree */
		m_leftTreeModelAdapter = new DomToTreeModelAdapter(m_document);
		m_middleTreeModelAdapter = new DomToTreeModelAdapter(m_document);
		m_rightTreeModelAdapter = new DomToTreeModelAdapter(m_document);
		
		m_leftTree = new JTree(m_leftTreeModelAdapter);
		m_leftTextArea = new JTextArea();
		m_middleTree = new JTree(m_middleTreeModelAdapter);
		m_rightTree = new JTree(m_rightTreeModelAdapter);
		
		ToolTipManager.sharedInstance().registerComponent(m_leftTree);
		ToolTipManager.sharedInstance().registerComponent(m_middleTree);
		ToolTipManager.sharedInstance().registerComponent(m_rightTree);
		
		/* Builds left tab pane */
		JScrollPane leftTreePane = new JScrollPane(m_leftTree);
		JScrollPane leftTextPane = new JScrollPane(m_leftTextArea);
		m_leftTabPane= new JTabbedPane();
		m_leftTabPane.add("Tree View",leftTreePane);
		m_leftTabPane.add("Text View",leftTextPane);
		
		/* Builds middle tree pane */
		JScrollPane middleTreePane = new JScrollPane(m_middleTree);

		/* Builds right tree pane */
		JScrollPane rightTreePane = new JScrollPane(m_rightTree);
		rightTreePane.setBorder(BorderFactory.createCompoundBorder(
                        BorderFactory.createTitledBorder("Result"),
                        BorderFactory.createEmptyBorder(8,8,8,8)));
		
		m_leftTabPane.setPreferredSize(  
			new Dimension( leftWindowWidth, frameHeight ));
		middleTreePane.setPreferredSize(  
			new Dimension( middleWindowWidth, frameHeight ));
		rightTreePane.setPreferredSize(  
			new Dimension( rightWindowWidth, frameHeight ));

		/* Builds the SAX event text box */
		m_saxEventText = new JTextField();
		
		/* Builds the unsolved reference table */
		m_unsolvedReferenceTable = new JTable(
				new UnsolvedReferenceTableModel(this));

		/* Builds the BufferNode information text area */
		m_bufferNodeTextArea = new JTextArea();

		/* Builds the SAX chain information label */
		m_saxChainLabel = new JLabel();
		
		/* Builds the left pane */
		JPanel tabPaneWithSaxEventPane = new JPanel();
		tabPaneWithSaxEventPane.setLayout(new BorderLayout());
		tabPaneWithSaxEventPane.add("Center",m_leftTabPane);
		tabPaneWithSaxEventPane.add("South",new JScrollPane(m_saxEventText));
		
		JSplitPane leftPane = 
			new JSplitPane( JSplitPane.VERTICAL_SPLIT,
				tabPaneWithSaxEventPane,
				new JScrollPane(m_unsolvedReferenceTable));
		leftPane.setBorder(BorderFactory.createCompoundBorder(
                        BorderFactory.createTitledBorder("Original"),
                        BorderFactory.createEmptyBorder(8,8,8,8)));
                        
		leftPane.setContinuousLayout( true );
		leftPane.setDividerLocation( frameHeight*2/3 );
		leftPane.setPreferredSize( 
			new Dimension( leftWindowWidth, frameHeight ));
		
		/* Builds the middle pane */
		JPanel bufferNodeWithSaxChainPane = new JPanel();
		bufferNodeWithSaxChainPane.setLayout(new BorderLayout());
		bufferNodeWithSaxChainPane.add("Center",m_bufferNodeTextArea);
		bufferNodeWithSaxChainPane.add("South",new JScrollPane(m_saxChainLabel));
		
		JSplitPane middlePane = 
			new JSplitPane( JSplitPane.VERTICAL_SPLIT,
				middleTreePane,
				new JScrollPane(bufferNodeWithSaxChainPane));
				
		middlePane.setBorder(BorderFactory.createCompoundBorder(
                        BorderFactory.createTitledBorder("Insight SAXEventKeeper"),
                        BorderFactory.createEmptyBorder(8,8,8,8)));
				
		middlePane.setContinuousLayout( true );
		middlePane.setDividerLocation( frameHeight/2+5 );
		middlePane.setPreferredSize( 
			new Dimension( middleWindowWidth, frameHeight ));

		/* Builds the whole frame pane */
		JSplitPane leftWithMiddlePane = 
			new JSplitPane( JSplitPane.HORIZONTAL_SPLIT,
				leftPane,
				middlePane );
		leftWithMiddlePane.setContinuousLayout( true );
		leftWithMiddlePane.setDividerLocation( leftWindowWidth );
		leftWithMiddlePane.setPreferredSize( 
			new Dimension( leftPaneWidth + 10, frameHeight+10 ));
		
		JSplitPane framePane = 
			new JSplitPane( JSplitPane.HORIZONTAL_SPLIT,
				leftWithMiddlePane,
				rightTreePane );
				
				
		framePane.setContinuousLayout( true );
		framePane.setDividerLocation(leftPaneWidth+10 );
		framePane.setPreferredSize( 
			new Dimension( frameWidth + 20, frameHeight+10 ));
		
		/* Adds all GUI components to the main panel */
		mainPanel.setLayout(new BorderLayout());
		mainPanel.add("Center", framePane );
		
		m_openButton = new JButton("Open...");
		m_openButton.addActionListener(this);
		
		m_goButton = new JButton("Go!");
		m_goButton.addActionListener(this);
		
		m_stepButton = new JButton("Step");
		m_stepButton.addActionListener(this);
		
		m_startButton = new JButton("Start");
		m_startButton.addActionListener(this);
		m_startButton.setEnabled(false);
		
		m_isExportingButton = new JCheckBox("export, not import", true);
		m_isJavaComponentButton = new JCheckBox("use java component", false);
		
		m_saveButton = new JButton("Save...");
		m_saveButton.addActionListener(this);

		m_batchButton = new JButton("Batch...");
		m_batchButton.addActionListener(this);
		
		JPanel buttonPanel = new JPanel();
		buttonPanel.add(m_batchButton);
		buttonPanel.add(m_openButton);
		buttonPanel.add(m_startButton);
		buttonPanel.add(m_goButton);
		buttonPanel.add(m_stepButton);
		buttonPanel.add(m_isExportingButton);
		buttonPanel.add(m_isJavaComponentButton);
		buttonPanel.add(m_saveButton);
		
		mainPanel.add("South", buttonPanel);
		
		enableGoButton(false);
		
		return mainPanel;
	}

	/*
	 * enables/disables the Go(and Step) button.
	 */
	private void enableGoButton(boolean enabled)
	{
		m_goButton.setEnabled(enabled);
		m_stepButton.setEnabled(enabled);
	}
	
	/*
	 * updates the unsolved reference information.
	 */
	private void updatesUnsolvedReferencesInformation()
	{
		m_unsolvedReferenceTable.setModel(new UnsolvedReferenceTableModel(this));
	}
	
	/*
	 * adjusts the view of the tree in order to make the
	 * particular Node into the focus tree leaf.
	 */
	private void updatesTree(Node node, JTree tree)
	{
		int i=0;
		int currentLine = 0;
		
		while (i<tree.getRowCount())
		{
			TreePath treePath = tree.getPathForRow(i);
			tree.expandPath(treePath);
			
			AdapterNode adapterNode = (AdapterNode)treePath.getLastPathComponent();
			
			if (node == adapterNode.getNode())
			{
				tree.addSelectionPath(treePath);
				currentLine = i;
			}
			
			++i;
		}
		
		tree.setCellRenderer(new XMLTreeCellRanderer(node));
		tree.scrollRowToVisible(currentLine);
	}

	/******************************************************************************
	 * action listener related methods.
	 ******************************************************************************/
	
	/*
	 * reads in a document, either the document is a file or
	 * is a text paragraph.
	 */
	private void openDocument()
	{
		if (m_leftTabPane.getSelectedIndex() == 0)
		{
			File f = openFile();
			if (f != null)
			{
				parseFile(f);
			}
		}
		else
		{
			String text = m_leftTextArea.getText();
			
			try
			{
				parseStream(new ByteArrayInputStream(text.getBytes("UTF-8")));
			}
			catch(UnsupportedEncodingException e)
			{
				e.printStackTrace();
			}
			
			m_leftTabPane.setSelectedIndex(0);
		}
	}
	
	/*
	 * save the result tree to a file.
	 */
	private void saveResult()
	{
		saveFile();
	}
	
	/*
	 * selects a batch file to excute.
	 */ 
	private void openBatch()
	{
		File f = openFile();
		if (f != null)
		{
			runBatch(f);
		}
	}

	/*
	 * makes the current operation to an end.
	 */
	private void endMission()
	{
		enableGoButton(false);
		m_parsingThread = null;
		
		if (m_xmlSecurityFrameworkController != null)
		{
			m_xmlSecurityFrameworkController.endMission();
		}
		
		updatesUIs();
		
		m_xmlSecurityFrameworkController = null;
		freeComponents();
		
		System.gc();
	}
	
	
	/******************************************************************************
	 * UNO component related methods
	 ******************************************************************************/

	/*
	 * connects the SO server.
	 */
	private void connectSO(String unoUrlString)
	{
		if (unoUrlString != null)
		{
			m_unoURL = new String(unoUrlString);
		}
		
		try
		{
			m_xRemoteServiceManager = getRemoteServiceManager(m_unoURL);
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	}
	
	/*
	 * creates UNO components.
	 */
	private boolean createComponents()
	{
		try
		{
			String SEInitializer_comp;
			String XMLSignature_comp;
			String XMLEncryption_comp;
			String tokenPath;
			
			if (m_bIsJavaBased)
			{
				SEInitializer_comp = SEINITIALIZER_COMPONENT_JAVA;
				XMLSignature_comp = XMLSIGNATURE_COMPONENT_JAVA;
				XMLEncryption_comp = XMLENCRYPTION_COMPONENT_JAVA;
				tokenPath = m_javaTokenFile;
			}
			else
			{
				SEInitializer_comp = SEINITIALIZER_COMPONENT_C;
				XMLSignature_comp = XMLSIGNATURE_COMPONENT_C;
				XMLEncryption_comp = XMLENCRYPTION_COMPONENT_C;
				tokenPath = m_nssTokenPath;
			}
				
			Object seInitializerObj = m_xRemoteServiceManager.createInstanceWithContext(
				SEInitializer_comp, m_xRemoteContext);
				
			if (seInitializerObj == null)
			{
				freeComponents();
				return false;
			}
			
			m_xSEInitializer = (XSEInitializer)UnoRuntime.queryInterface(
						XSEInitializer.class, seInitializerObj); 
						
			m_xXMLSecurityContext = m_xSEInitializer.createSecurityContext(tokenPath);
			
			Object xmlSignatureObj = m_xRemoteServiceManager.createInstanceWithContext(
				XMLSignature_comp, m_xRemoteContext);
				
			if (xmlSignatureObj == null)
			{
				freeComponents();
				return false;
			}

			m_xXMLSignature = (XXMLSignature)UnoRuntime.queryInterface(
						XXMLSignature.class, xmlSignatureObj); 
			
			Object xmlEncryptionObj = m_xRemoteServiceManager.createInstanceWithContext(
				XMLEncryption_comp, m_xRemoteContext);
				
			if (xmlEncryptionObj == null)
			{
				freeComponents();
				return false;
			}

			m_xXMLEncryption = (XXMLEncryption)UnoRuntime.queryInterface(
						XXMLEncryption.class, xmlEncryptionObj); 
						
			return true;
		}
		catch(Exception e)
		{
			freeComponents();
			e.printStackTrace();
			return false;
		}
	}
        
        /*
         * frees UNO components.
         */
	private void freeComponents()
	{
		try
		{
			if (m_xXMLSecurityContext != null)
			{
				m_xSEInitializer.freeSecurityContext(m_xXMLSecurityContext);
				m_xXMLSecurityContext = null;
			}
			
			m_xXMLSignature = null;
			m_xXMLEncryption = null;
			m_xSEInitializer = null;
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	}
	
	/*
	 * getRemoteServiceManager
	 */
	private XMultiComponentFactory getRemoteServiceManager(String unoUrl) throws java.lang.Exception 
	{
		if (m_xRemoteContext == null) 
		{
			/*
			 * First step: create local component context, get local servicemanager and
			 * ask it to create a UnoUrlResolver object with an XUnoUrlResolver interface
			 */
			XComponentContext xLocalContext =
				com.sun.star.comp.helper.Bootstrap.createInitialComponentContext(null);
			XMultiComponentFactory xLocalServiceManager = xLocalContext.getServiceManager();
			Object urlResolver = xLocalServiceManager.createInstanceWithContext(
				UNOURLRESOLVER, xLocalContext );
			/*
			 * query XUnoUrlResolver interface from urlResolver object
			 */
			XUnoUrlResolver xUnoUrlResolver = (XUnoUrlResolver) UnoRuntime.queryInterface(
				XUnoUrlResolver.class, urlResolver );
				
			/*
			 * Second step: use xUrlResolver interface to import the remote StarOffice.ServiceManager,
			 * retrieve its property DefaultContext and get the remote servicemanager
			 */
			Object initialObject = xUnoUrlResolver.resolve( unoUrl );
			XPropertySet xPropertySet = (XPropertySet)UnoRuntime.queryInterface(
			XPropertySet.class, initialObject);
			Object context = xPropertySet.getPropertyValue("DefaultContext");
			m_xRemoteContext = (XComponentContext)UnoRuntime.queryInterface(
				XComponentContext.class, context);
		}
		return m_xRemoteContext.getServiceManager();
	}
	

	/******************************************************************************
	 * XML related methods
	 ******************************************************************************/

	/*
	 * removes all empty text node inside the particular element 
	 */
	private void removeEmptyText(Node node)
	{
		int type = node.getNodeType();
		NodeList children;
		int i;
		
		switch (type)
		{
		case Node.DOCUMENT_NODE:
		case Node.ELEMENT_NODE:
			Node child = node.getFirstChild();
			while (child!= null)
			{
				Node nextSibling = child.getNextSibling();
				int childType = child.getNodeType();
				
				if (childType==Node.TEXT_NODE)
				{	
					String message = child.getNodeValue().trim();
					if (message == null || message.length()<=0)
					{
						node.removeChild(child);
					}
				}
				else if (childType == Node.ELEMENT_NODE)
				{
					removeEmptyText(child);
				}
				
				child = nextSibling;
			}
			break;
		}
	}

	/*
	 * reads a stream, and parses it into the original tree.
	 */
	private void parseStream(InputStream is)
	{
		try
		{
			DocumentBuilderFactory factory =
				DocumentBuilderFactory.newInstance();
			m_document = null;
			m_startButton.setEnabled(false);
			initUI();
			
			/* factory.setValidating(true); */
			/* factory.setNamespaceAware(true); */
			
			try 
			{
				DocumentBuilder builder = factory.newDocumentBuilder();
				m_document = builder.parse(is);
				m_startButton.setEnabled(true);
				initUI();
			}
			catch (ParserConfigurationException pce) 
			{
				pce.printStackTrace();
			}
			catch (IOException ioe) 
			{
				ioe.printStackTrace();
			}
		}
		catch(Exception exce)
		{
			System.out.println("input stream Exception");
		}
	}


	/******************************************************************************
	 * file operation related methods
	 ******************************************************************************/
	
	/*
	 * opens a file, and parses it into the original tree.
	 */
	private void parseFile(File name)
	{
		try
		{
			FileInputStream fis = new FileInputStream(name);
			parseStream(fis);
			fis.close();
		}
		catch(Exception exce)
		{
			System.out.println("open file Exception");
		}
	}

	
	/*
	 * selects a file to open
	 */
	private File openFile()
	{
		File rc = null;
		
		JFileChooser fileChooser= new JFileChooser();
		
		fileChooser.setDialogTitle("Select File To Open");
		fileChooser.setDialogType(JFileChooser.OPEN_DIALOG);
			
		fileChooser.setApproveButtonText("Ok");
		
		if (m_currentDirectory == null)
		{
			fileChooser.rescanCurrentDirectory();
		}
		else
		{
			fileChooser.setCurrentDirectory(m_currentDirectory);
		}
		
		fileChooser.setFileFilter(new XMLFileFilter());

		int result = fileChooser.showDialog(this,null);
		if (result==fileChooser.APPROVE_OPTION)
		{
			m_currentDirectory = fileChooser.getCurrentDirectory();
			rc = fileChooser.getSelectedFile();
		}
		
		return rc;
	}
	
	private void saveFile()
	{
		JFileChooser fileChooser= new JFileChooser();
		
		fileChooser.setDialogTitle("Select File To Save");
		fileChooser.setDialogType(JFileChooser.SAVE_DIALOG);
			
		fileChooser.setApproveButtonText("Ok");
		
		if (m_currentDirectory == null)
		{
			fileChooser.rescanCurrentDirectory();
		}
		else
		{
			fileChooser.setCurrentDirectory(m_currentDirectory);
		}
		
		fileChooser.setFileFilter(new XMLFileFilter());

		int result = fileChooser.showDialog(this,null);
		if (result==fileChooser.APPROVE_OPTION)
		{
			try
			{
				m_currentDirectory = fileChooser.getCurrentDirectory();
				saveFile(fileChooser.getSelectedFile());
			}
			catch(Exception exce)
			{
				System.out.println("save file Exception");
				exce.printStackTrace();
			}
		}
	}

	/*
	 * excutes a batch file.
	 */
	private void runBatch(File f)
	{
		FileInputStream fis = null;
		
		try
		{
			fis = new FileInputStream(f);
			StringBuffer commandBuffer = new StringBuffer();
			
			m_logFileOutputStream = new FileOutputStream("TestTool-log.txt");
			m_bIsBatchRunning = true;
			int ch = 0;
			
			while (ch != -1)
			{
				ch = fis.read();
				
				if (ch != 0x0a && ch != -1)
				{
					if (ch != 0x0d)
					{
						commandBuffer.append((char)ch);
					}
				}
				else
				{
					String command = new String(commandBuffer);
					if (command.startsWith("Open "))
					{
						m_logFileOutputStream.write(("start \""+command+"\" ...\n").getBytes());
						String fileName = command.substring(5);
						parseFile(new File(fileName));
						m_logFileOutputStream.write("command end \n\n".getBytes());
					}
					else if (command.startsWith("Use Java Component"))
					{
						m_logFileOutputStream.write(("start \""+command+"\" ...\n").getBytes());
						m_isJavaComponentButton.setSelected(true);
						m_logFileOutputStream.write("command end \n\n".getBytes());
					}
					else if (command.startsWith("Use C++ Component"))
					{
						m_logFileOutputStream.write(("start \""+command+"\" ...\n").getBytes());
						m_isJavaComponentButton.setSelected(false);
						m_logFileOutputStream.write("command end \n\n".getBytes());
					}
					else if (command.startsWith("Go "))
					{
						m_logFileOutputStream.write(("start \""+command+"\" ...\n").getBytes());
						String opera = command.substring(3);
						if (opera.equals("Sign") || opera.equals("Encrypt"))
						{
							m_isExportingButton.setSelected(true);
						}
						else
						{
							m_isExportingButton.setSelected(false);
						}
						
						startsUp();
						if (m_parsingThread != null)
						{
							m_bIsUIUpdateSuppressed = true;
							try{
								while (m_parsingThread.nextStep());
								endMission();
							}
							catch(Exception e)
							{
								System.out.println("exception happen during batch:"+e);
								e.printStackTrace();
							}
														
							m_bIsUIUpdateSuppressed = false;
							updatesUIs();
						}
						m_logFileOutputStream.write("command end \n\n".getBytes());
					}
					else if (command.startsWith("Save "))
					{
						m_logFileOutputStream.write(("start \""+command+"\" ...\n").getBytes());
						String fileName = command.substring(5);
						saveFile(new File(fileName));
						m_logFileOutputStream.write("command end \n\n".getBytes());
					}
					
					commandBuffer = new StringBuffer();
				}
			}
	
			m_bIsBatchRunning = false;
			m_logFileOutputStream.close();
			m_logFileOutputStream = null;
			
			fis.close();
			fis = null;
		}
		catch(java.io.IOException e)
		{
			e.printStackTrace();
		}
	}

	/*
	 * save the current result tree to a particular file.
	 */
	private void saveFile(File f)
	{
		try{
			FileOutputStream fos = new FileOutputStream(f);
			SAXEventPrinter.display((Document)m_rightTreeEventCollector.getDocument(),
				0,fos,false);
			fos.close();
		}catch(Exception e)
		{
			e.printStackTrace();
		}
	}

	/******************************************************************************
	 * others
	 ******************************************************************************/
	
	/*
	 * starts up the operation.
	 */
	private void startsUp()
	{
		if (m_parsingThread != null)
		{
			m_parsingThread = null;
		}
		
		m_bIsExporting = m_isExportingButton.isSelected();
		m_bIsJavaBased = m_isJavaComponentButton.isSelected();
		
		if (createComponents())
		{
			m_rightTreeEventCollector = new SAXEventCollector(this);
			
			m_parsingThread = new ParsingThread(
				m_document,
				null,
				this);
			
			m_xmlSecurityFrameworkController = 
				new XMLSecurityFrameworkController(
					this,
					m_bIsExporting,
					m_bIsJavaBased,
					m_rightTreeEventCollector,
					m_parsingThread,
					m_xXMLSecurityContext,
					m_xXMLSignature,
					m_xXMLEncryption,
					m_xRemoteServiceManager,
					m_xRemoteContext);
				
			enableGoButton(true);
		}
		else
		{
			showMessage("Error in creating XML Security Components!");
		}
	}
	
/**************************************************************************************
 * protected methods
 **************************************************************************************/
 
	/******************************************************************************
	 * UI related methods
	 ******************************************************************************/
	
	/*
	 * updates the sax chain information.
	 */
	protected void updatesSAXChainInformation(String chainStr)
	{
		m_saxChainLabel.setText(chainStr);
	}

	/*
	 * update the current SAX event information.
	 */
	protected void updatesCurrentSAXEventInformation(String event)
	{
		m_saxEventText.setText(event);
	}
	
	/*
	 * updates all information in the UI.
	 */
	protected void updatesUIs()
	{
		if (!m_bIsUIUpdateSuppressed)
		{
			m_leftTree.clearSelection();
			updatesTree(null, m_leftTree);
			
			if (m_xmlSecurityFrameworkController != null)
			{
				String bufferNodeTreeText = m_xmlSecurityFrameworkController.getBufferNodeTreeInformation();
				if (bufferNodeTreeText == null)
				{
					m_middleTree.setVisible(false);
					m_bufferNodeTextArea.setText("No XML Security Related");
				}
				else
				{
					m_middleTreeEventCollector = new SAXEventCollector(null);
					m_xmlSecurityFrameworkController.getDocument(m_middleTreeEventCollector);
					
					m_middleTreeModelAdapter = new DomToTreeModelAdapter(m_middleTreeEventCollector.getDocument());
					m_middleTree.setModel(m_middleTreeModelAdapter);
					updatesTree(null, m_middleTree);
					m_middleTree.setVisible(true);
					m_bufferNodeTextArea.setText(bufferNodeTreeText);
				}
			}
			else
			{
				m_middleTree.setVisible(false);
				m_bufferNodeTextArea.setText("No XMLImporter/XMLExporter");
			}
			
			if (m_rightTreeEventCollector != null)
			{
				m_rightTreeModelAdapter = new DomToTreeModelAdapter((Document)m_rightTreeEventCollector.getDocument());
				m_rightTree.setModel(m_rightTreeModelAdapter);
				updatesTree((Node)m_rightTreeEventCollector.getCurrentElement(), m_rightTree);
			}
	
			updatesUnsolvedReferencesInformation();
		}
	}
	
	/*
	 * shows a message.
	 */
	protected void showMessage(String msg)
	{
		if (m_bIsBatchRunning)
		{
			try
			{
				if (!msg.startsWith("Message from : SAXEventKeeper"))
				{
					byte [] b = msg.getBytes();
					m_logFileOutputStream.write("        ".getBytes());
					
					for (int i=0; i<b.length; ++i)
					{
						m_logFileOutputStream.write(b[i]);
						if (b[i] == '\n')
						{
							m_logFileOutputStream.write("        ".getBytes());
						}
					}
					m_logFileOutputStream.write("\n        ==============================\n".getBytes());
				}
			}
			catch(IOException e)
			{
				e.printStackTrace();
			}
		}
		else
		{
			if (stepMode)
			{
				JOptionPane optionPane = new JOptionPane();
				optionPane.showMessageDialog(this, msg, "TestTool Notification", JOptionPane.INFORMATION_MESSAGE);
			}
			else
			{
				Object[] options = { "OK", "Go back to step mode" };
				if (1 == JOptionPane.showOptionDialog(this, msg, "TestTool Notification", 
					JOptionPane.DEFAULT_OPTION, JOptionPane.PLAIN_MESSAGE,
					null, options, options[0]))
				{
					stepMode = true;
				}
			}
		}
	}


	/******************************************************************************
	 * information retrieving
	 ******************************************************************************/

	/*
	 * gets all unsolved reference ids.
	 * a reference id is the value of the id attribute of an
	 * referenced element.
	 */
	protected Vector getUnsolvedReferenceIds()
	{
		Vector rc;
		
		if (m_xmlSecurityFrameworkController == null)
		{
			rc = new Vector();
		}
		else
		{
			rc = ((XMLSecurityFrameworkController)m_xmlSecurityFrameworkController).
				getUnsolvedReferenceIds();
		}
		
		return rc;
	}
	
	/*
	 * gets all unsolved reference keeper ids.
	 * a reference keeper id is the id which the SAXEventKeeper uses
	 * to identify the corresponding BufferNode.
	 */
	protected Vector getUnsolvedReferenceKeeperIds()
	{
		Vector rc;
		
		if (m_xmlSecurityFrameworkController == null)
		{
			rc = new Vector();
		}
		else
		{
			rc = ((XMLSecurityFrameworkController)m_xmlSecurityFrameworkController).
				getUnsolvedReferenceKeeperIds();
		}
		
		return rc;
	}

	/*
	 * gets all unsolved references' remaining numbers.
	 * a remaining number is that how many claims have not been found for
	 * a unsolved reference.
	 */
	protected Vector getUnsolvedReferenceRefNum()
	{
		Vector rc;
		
		if (m_xmlSecurityFrameworkController == null)
		{
			rc = new Vector();
		}
		else
		{
			rc = ((XMLSecurityFrameworkController)m_xmlSecurityFrameworkController).
				getUnsolvedReferenceRefNum();
		}
		
		return rc;
	}


/**************************************************************************************
 * public methods
 **************************************************************************************/

	/******************************************************************************
	 * action listener related methods.
	 ******************************************************************************/

	/*
	 * action listening method.
	 */
	public void actionPerformed(ActionEvent e)
	{
		if (e.getSource().equals(m_startButton))
		{
			endMission();
			startsUp();
		}
		if (e.getSource().equals(m_goButton))
		{
			if (m_parsingThread != null)
			{
				stepMode = false;
				boolean notOver;
				while ( notOver = m_parsingThread.nextStep())
				{
					if (stepMode) break;
				}
				
				if (!notOver) endMission();
			}
		}
		if (e.getSource().equals(m_stepButton))
		{
			if (m_parsingThread != null)
			{
				if (!m_parsingThread.nextStep())
				{
					endMission();
				}
			}
		}
		if (e.getSource().equals(m_openButton))
		{
			openDocument();
		}
		if (e.getSource().equals(m_saveButton))
		{
			saveResult();
		}
		if (e.getSource().equals(m_batchButton))
		{
			openBatch();
		}
	}
	
	/*
	 * void-consturctor method
	 */
	public TestTool()
	{
	        getRootPane().putClientProperty("defeatSystemEventQueueCheck", Boolean.TRUE);
	        
        	try
        	{
        		m_currentDirectory = new File(System.getProperty("user.dir"));
		}
		catch(Exception e)
		{
			System.out.println("getProperty error :"+e);
		}
	}
	
	/*
	 * consturctor method with a specific connection URL
	 */
	public TestTool(String connecturl)
	{
		this();
		m_unoURL = new String(connecturl);
	}
	
	public static void main(String argv[])
	{
		Dimension screenSize = 
			Toolkit.getDefaultToolkit().getScreenSize();
		
		TestTool tt;
		
		if (argv.length < 1)
		{
			System.out.println("Usage: java TestTool [javaTokenFile] [nssTokenPath] [xml file]?");
			return;
		}
		
		boolean hasFile = false;
		boolean hasBatch = false;
		String fileName = null;
		
		if (argv.length >= 3)
		{
			if (argv[2].startsWith("-b"))
			{
				fileName = argv[2].substring(2);
				hasBatch = true;
			}
			else
			{
				fileName = argv[2];
				hasFile = true;
			}
		}
		
		tt = new TestTool();
		tt.m_javaTokenFile = new String(argv[0]);
		tt.m_nssTokenPath = new String(argv[1]);
		tt.connectSO(null);
		
		/* Set up a GUI framework */
		JFrame myFrame = new JFrame("XML Security Components Tester");
		myFrame.addWindowListener(
			new WindowAdapter() {
				public void windowClosing(WindowEvent e) {System.exit(0);}
			}  
			);
			
		myFrame.setContentPane(tt.buildUI(screenSize.width, screenSize.height));
		myFrame.pack();
		int w = screenSize.width-30;
		int h = screenSize.height-30;
		myFrame.setLocation(screenSize.width/2 - w/2, 
		screenSize.height/2 - h/2);
		myFrame.setSize(w, h);
		myFrame.setVisible(true);

		if (hasFile)
		{
			tt.parseFile(new File(fileName));
		}
		else if (hasBatch)
		{
			tt.runBatch(new File(fileName));
		}
	}
}