/*
* Copyright (C) 2002-2006 XimpleWare, info@ximpleware.com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import com.ximpleware.NavException;
import com.ximpleware.ParseException;
import com.ximpleware.PilotException;
import com.ximpleware.AutoPilot;
import com.ximpleware.VTDGen;
import com.ximpleware.VTDNav;
import com.ximpleware.xpath.*;
public class XPathDemo extends JApplet{
JButton but_parse_no_ns, but_parse_ns, but_clear;
JButton nav_root, nav_parent, nav_first_child, nav_last_child;
JButton nav_next_sib, nav_prev_sib, nav_push, nav_pop;
//JButton but_get_attr; // get Attr val
//JButton but_get_text; // get Text
JButton but_frag; // getFragmenet
JButton but_sel_xpath;
JButton but_iterate;
JButton but_sel_XPath;
JButton but_evalXPath;
JButton but_reset;
//JButton but_touch;
//JButton but_text_next;
boolean test_text;
JTextArea textArea;
VTDGen vg;
VTDNav vn;
//TextIter ti;
JPanel buttonArea;
JPanel navPanel;
JPanel parsePanel;
JPanel dataPanel;
JPanel inputPanel;
JPanel statusPanel;
JPanel XPathPanel;
//JLabel attrLabel;
JTextField XPathExpr;
//JTextField attrName;
//JLabel nsLabel;
//JTextField nsVal;
JLabel status;
AutoPilot ap;
public void init(){
//ti = new TextIter();
ap = null;
vn = null;
test_text = true;
// create buttons and assign actionListener
//but_parse_no_ns = new JButton("parse (ns disabled)");
//but_parse_no_ns.addActionListener(new parse_no_ns_Listener());
but_parse_ns = new JButton("parse");
but_parse_ns.addActionListener(new parse_ns_Listener());
but_clear = new JButton("clear");
but_clear.addActionListener(new clearListener());
/*nav_root = new JButton("toElement(ROOT)");
nav_root.addActionListener(new navRootListener());
nav_parent= new JButton("toElement(PARENT)");
nav_parent.addActionListener(new navParentListener());
nav_first_child = new JButton("toElement(FIRST_CHILD)");
nav_first_child.addActionListener(new navFCListener());
nav_last_child = new JButton("toElement(LAST_CHILD)");
nav_last_child.addActionListener(new navLCListener());
nav_next_sib = new JButton("toElement(NEXT_SIB)");
nav_next_sib.addActionListener(new navNSListener());
nav_prev_sib = new JButton("toElement(PREV_SIB)");
nav_prev_sib.addActionListener(new navPSListener());
nav_push = new JButton("push");
nav_push.addActionListener(new navPushListener());
nav_pop = new JButton("pop");
nav_pop.addActionListener(new navPopListener());*/
//but_get_attr = new JButton("get Attr val");
//but_get_attr.addActionListener(new getAttrListener());
//but_get_text = new JButton("get text/CDATA");
//but_get_text.addActionListener(new getTextListener());
but_sel_XPath = new JButton("select XPath");
but_sel_XPath.addActionListener(new selXPathListener());
but_evalXPath = new JButton("iterate");
but_evalXPath.addActionListener(new iterXPathListener());
but_reset = new JButton("reset expression");
but_reset.addActionListener(new resetXPathListener());
but_frag = new JButton("get element fragment");
but_frag.addActionListener(new getFragmentListener());
// but_touch = new JButton("touch");
// but_touch.addActionListener(new touchListener());
//
// but_text_next = new JButton("getNext");
// but_text_next.addActionListener(new textGetNext());
XPathExpr = new JTextField("(//b[c])[last()]");
XPathExpr.setBorder(BorderFactory.createEtchedBorder());
//XPathExpr.setEnabled(false);
status = new JLabel();
// instantiate panels
buttonArea = new JPanel(new GridLayout(4,1));
buttonArea.resize(540,300);
parsePanel = new JPanel(new GridLayout(1,2));
parsePanel.setBorder(BorderFactory.createTitledBorder("Parse and Clear"));
//navPanel = new JPanel(new GridLayout(2,4));
//navPanel.setBorder(BorderFactory.createTitledBorder("Navigation"));
XPathPanel = new JPanel(new GridLayout(1,2));
XPathPanel.setBorder(BorderFactory.createTitledBorder("XPath Control Buttons"));
inputPanel = new JPanel(new GridLayout(1,3));
inputPanel.setBorder(BorderFactory.createTitledBorder("XPath Expression"));
statusPanel = new JPanel();
statusPanel.setBorder(BorderFactory.createTitledBorder("status"));
//inputPanel.setForeground(Color.BLUE);
// add buttons
//parsePanel.add(but_parse_no_ns);
parsePanel.add(but_parse_ns);
parsePanel.add(but_clear);
/*navPanel.add(nav_root);
navPanel.add(nav_parent);
navPanel.add(nav_first_child);
navPanel.add(nav_last_child);
navPanel.add(nav_next_sib);
navPanel.add(nav_prev_sib);
navPanel.add(nav_push);
navPanel.add(nav_pop);*/
// if(!test_text){
// dataPanel.add(but_get_text);
// dataPanel.add(but_get_attr);
// dataPanel.add(but_frag);
// }
// else{
// textIterPanel.add(but_touch);
// textIterPanel.add(but_text_next);
// }
inputPanel.add(XPathExpr);
XPathPanel.add(but_sel_XPath);
XPathPanel.add(but_evalXPath);
XPathPanel.add(but_reset);
statusPanel.add(status);
// enable and disable various buttons
//but_parse_no_ns.setEnabled(true);
but_parse_ns.setEnabled(true);
but_clear.setEnabled(true);
setButtons(false);
getContentPane().setLayout(new FlowLayout());
textArea = new JTextArea(12,25);
JScrollPane scrollPane =
new JScrollPane(textArea,
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
textArea.setEditable(true);
textArea.setFont(new Font("Helvetica",Font.BOLD,18));
textArea.setLineWrap(true);
getContentPane().add(scrollPane);
String s = "<root>\n"+
" <b a='1' b='2'>\n"+
" <a>\n"+
" <b a='1' b='2'/>\n"+
" <b a='1' b='2'> <c/> </b>\n"+
" </a>\n"+
" <d/>\n"+
" <c/>\n"+
" <c/>\n"+
" <a1> <a2/> </a1>\n"+
" </b>\n"+
" <c/>\n"+
"</root>";
textArea.setText(s);
textArea.setSelectedTextColor(Color.RED);
textArea.setSelectionColor(Color.DARK_GRAY);
textArea.setSelectionStart(2);
textArea.setSelectionEnd(6);
buttonArea.add(parsePanel);
//buttonArea.add(navPanel);
buttonArea.add(XPathPanel);
buttonArea.add(inputPanel);
buttonArea.add(statusPanel);
getContentPane().add(buttonArea);
//buttonPanel.add(new JLabel("good"));
//textArea.requestFocus();
//getContentPane().add(but_parse);
//buttonPanel.resize(200,400);
//buttonPanel.show();
vg = new VTDGen();
resize(500,540);
}
public void setButtons(boolean b){
/*nav_root.setEnabled(b);
nav_parent.setEnabled(b);
nav_first_child.setEnabled(b);
nav_last_child.setEnabled(b);
nav_next_sib.setEnabled(b);
nav_prev_sib.setEnabled(b);
nav_push.setEnabled(b);
nav_pop.setEnabled(b);*/
//but_get_text.setEnabled(b);
//but_get_attr.setEnabled(b);
but_frag.setEnabled(b);
but_sel_XPath.setEnabled(b);
but_evalXPath.setEnabled(b);
but_reset.setEnabled(b);
//but_touch.setEnabled(b);
//but_text_next.setEnabled(b);
//XPathExpr.setEnabled(b);
//attrName.setEnabled(b);
}
public static void main(String[] args) {
JApplet ja = new JApplet();
}
public void showToken(){
if (vn==null)return;
textArea.setSelectedTextColor(Color.RED);
textArea.setSelectionColor(Color.DARK_GRAY);
int index = vn.getCurrentIndex();
int os = vn.getTokenOffset(index);
int len = vn.getTokenLength(index);
int type = vn.getTokenType(index);
if (type == VTDNav.TOKEN_STARTING_TAG
|| type == VTDNav.TOKEN_ATTR_NAME
|| type == VTDNav.TOKEN_ATTR_NS){
len = len & 0xff;
}
System.out.println("os --> "+os);
System.out.println("len --> "+len);
textArea.setSelectionStart(os);
textArea.setSelectionEnd(os + len );
textArea.requestFocus();
//repaint();
}
public void showToken(int index){
if (vn==null)return;
textArea.setSelectedTextColor(Color.RED);
textArea.setSelectionColor(Color.DARK_GRAY);
//int index = vn.getCurrentIndex();
int os = vn.getTokenOffset(index);
int len = vn.getTokenLength(index);
int type = vn.getTokenType(index);
if (type == VTDNav.TOKEN_STARTING_TAG
|| type == VTDNav.TOKEN_ATTR_NAME
|| type == VTDNav.TOKEN_ATTR_NS){
len = len & 0xff;
}
System.out.println("os --> "+os);
System.out.println("len --> "+len);
textArea.setSelectionStart(os);
textArea.setSelectionEnd(os + len );
textArea.requestFocus();
}
public void showToken(int os, int len){
textArea.setSelectionStart(os);
textArea.setSelectionEnd(os + len );
textArea.requestFocus();
}
public class parse_ns_Listener implements ActionListener {
public void actionPerformed(ActionEvent e){
try{
status.setText("");
vg.setDoc(textArea.getText().getBytes());
vg.parse(true);
vn = vg.getNav();
setButtons(true);
//nsVal.setEnabled(true);
/* for (int i=0;i<vn.getTokenCount();i++)
{
int type = vn.getTokenType(i);
if (type == VTDNav.TOKEN_STARTING_TAG
|| type == VTDNav.TOKEN_ATTR_NAME
|| type == VTDNav.TOKEN_ATTR_NS)
{
System.out.println("Prefix: "+((vn.getTokenLength(i)>>16)&0xffff));
System.out.println("Q length "+(vn.getTokenLength(i)&0xffff));
}
}*/
showToken();
status.setText("current index is "+vn.getCurrentIndex());
}catch (ParseException pe){
setButtons(false);
status.setText(pe.toString());
}
}
}
public class clearListener implements ActionListener {
public void actionPerformed(ActionEvent e){
status.setText("");
textArea.setText(" ");
setButtons(false);
}
}
/*public class navRootListener implements ActionListener {
public void actionPerformed(ActionEvent e){
try{
status.setText("");
vn.toElement(VTDNav.ROOT);
showToken();
status.setText("current index is "+vn.getCurrentIndex());
}
catch (NavException ne){
status.setText(ne.toString());
}
}
}*/
// public class navParentListener implements ActionListener {
// public void actionPerformed(ActionEvent e){
// try{
// status.setText("");
// vn.toElement(VTDNav.PARENT);
// /*if (attrName.getText().length() == 0)
// vn.toElement(VTDNav.);
// else if (nsVal.getText().length() == 0)
// vn.toElement(VTDNav.);
// else
// vn.toElementNS(VTDNav.);*/
//
// showToken();
// status.setText("current index is "+vn.getCurrentIndex());
// }
// catch (NavException ne){
// status.setText(ne.toString());
// }
// }
// }
// public class navFCListener implements ActionListener {
// public void actionPerformed(ActionEvent e){
// try{
// status.setText("");
// vn.toElement(VTDNav.FC);
//
// showToken();
// status.setText("current index is "+vn.getCurrentIndex());
// }
// catch (NavException ne){
// status.setText(ne.toString());
// }
// }
// }
//
// public class navLCListener implements ActionListener {
// public void actionPerformed(ActionEvent e){
// try{
// status.setText("");
// vn.toElement(VTDNav.LC);
//
// //System.out.println("to last child :"+vn.toElement(VTDNav.LC));
// showToken();
// status.setText("current index is "+vn.getCurrentIndex());
// }
// catch (NavException ne){
// status.setText(ne.toString());
// }
// }
// }
//
// public class navNSListener implements ActionListener {
// public void actionPerformed(ActionEvent e){
// try{
// status.setText("");
//
// vn.toElement(VTDNav.NS);
//
// //System.out.println("to next sibling :"+vn.toElement(VTDNav.NS));
// showToken();
// status.setText("current index is "+vn.getCurrentIndex());
// }
// catch (NavException ne){
// status.setText(ne.toString());
// }
// }
// }
//
//// public class navPSListener implements ActionListener {
// public void actionPerformed(ActionEvent e){
// try{
// status.setText("");
//
// vn.toElement(VTDNav.PS);
//
// //System.out.println("to prev child :"+ vn.toElement(VTDNav.PS));
// showToken();
// status.setText("current index is "+vn.getCurrentIndex());
// }
// catch (NavException ne){
// status.setText(ne.toString());
// }
// }
// }
public class getTextListener implements ActionListener {
public void actionPerformed(ActionEvent e){
System.out.println("get text");
status.setText("");
if (vn!=null){
int i = vn.getText();
if (i!=-1)
showToken(i);
else{
showToken();
status.setText("no text node found");
}
}
}
}
public class getFragmentListener implements ActionListener {
public void actionPerformed (ActionEvent e){
try{
long l = vn.getElementFragment();
showToken((int)l, (int) ((l>>32)&0xffffffff));
}
catch (NavException ne){
status.setText(ne.toString());
}
}
}
// public class navPushListener implements ActionListener{
// public void actionPerformed (ActionEvent e){
// if (vn!=null){
// vn.push();
// showToken();
// }
// }
// }
// public class navPopListener implements ActionListener{
// public void actionPerformed (ActionEvent e){
// if (vn!=null){
// vn.pop();
// showToken();
// status.setText("current index is "+vn.getCurrentIndex());
// }
// }
// }
public class selXPathListener implements ActionListener{
public void actionPerformed (ActionEvent e){
try{
if (vn!=null){
if (ap == null)
ap = new AutoPilot(vn);
else
ap.bind(vn);
ap.declareXPathNameSpace("ns1","GOOD");
ap.declareXPathNameSpace("ns2","BAD");
ap.selectXPath(XPathExpr.getText());
but_evalXPath.setEnabled(true);
but_reset.setEnabled(true);
status.setText(ap.getExprString());
}
}
catch (XPathParseException pe){
but_evalXPath.setEnabled(false);
but_reset.setEnabled(false);
status.setText(pe.toString());
}
}
}
public class iterXPathListener implements ActionListener{
public void actionPerformed (ActionEvent e){
try{
int i = ap.evalXPath();
if (i!=-1){
showToken(i);
status.setText("current index is "+i);
}
}catch (XPathEvalException xe){
status.setText(xe.toString());
}catch (NavException ne){
status.setText(ne.toString());
}
}
}
public class resetXPathListener implements ActionListener {
public void actionPerformed (ActionEvent e){
ap.resetXPath();
}
}
}