xerces-2_12_0.samples.dom.traversal.IteratorView Maven / Gradle / Ivy
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Xerces2 is the next generation of high performance, fully compliant XML parsers in the Apache Xerces family. This new version of Xerces introduces the Xerces Native Interface (XNI), a complete framework for building parser components and configurations that is extremely modular and easy to program.
The Apache Xerces2 parser is the reference implementation of XNI but other parser components, configurations, and parsers can be written using the Xerces Native Interface. For complete design and implementation documents, refer to the XNI Manual.
Xerces2 is a fully conforming XML Schema 1.0 processor. A partial experimental implementation of the XML Schema 1.1 Structures and Datatypes Working Drafts (December 2009) and an experimental implementation of the XML Schema Definition Language (XSD): Component Designators (SCD) Candidate Recommendation (January 2010) are provided for evaluation. For more information, refer to the XML Schema page.
Xerces2 also provides a complete implementation of the Document Object Model Level 3 Core and Load/Save W3C Recommendations and provides a complete implementation of the XML Inclusions (XInclude) W3C Recommendation. It also provides support for OASIS XML Catalogs v1.1.
Xerces2 is able to parse documents written according to the XML 1.1 Recommendation, except that it does not yet provide an option to enable normalization checking as described in section 2.13 of this specification. It also handles namespaces according to the XML Namespaces 1.1 Recommendation, and will correctly serialize XML 1.1 documents if the DOM level 3 load/save APIs are in use.
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* 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 dom.traversal;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Enumeration;
import java.util.Hashtable;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.MutableTreeNode;
import javax.swing.tree.TreeNode;
import javax.swing.tree.TreePath;
import javax.swing.tree.TreeSelectionModel;
import org.apache.xerces.parsers.DOMParser;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.traversal.DocumentTraversal;
import org.w3c.dom.traversal.NodeFilter;
import org.w3c.dom.traversal.NodeIterator;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import ui.DOMTreeFull;
/**
* This class shows a DOM Document in a JTree, and presents controls
* which allow the user to create and view the progress of a NodeIterator
* in the DOM tree.
*
* @version $Id$
*/
public class IteratorView
extends JFrame
implements ActionListener {
private static final long serialVersionUID = 3256726186452662580L;
Document document;
TreeNode lastSelected;
DOMParser parser;
JTextArea messageText;
JScrollPane messageScroll;
DOMTreeFull jtree;
NodeIterator iterator;
NameNodeFilter nameNodeFilter;
JButton nextButton;
JButton prevButton;
JButton removeButton;
JButton addButton;
JTextField addText;
JButton newIterator;
JList whatToShow;
JCheckBox match;
JTextField nameFilter;
String whatArray[] = new String [] {
"ALL",
"ELEMENT",
"ATTRIBUTE",
"TEXT",
"CDATA_SECTION",
"ENTITY_REFERENCE",
"ENTITY",
"PROCESSING_INSTRUCTION",
"COMMENT",
"DOCUMENT",
"DOCUMENT_TYPE",
"DOCUMENT_FRAGMENT",
"NOTATION"
};
JCheckBox expandERs;
Hashtable treeNodeMap = new Hashtable();
/** main */
public static void main (String args[]) {
if (args.length > 0) {
String filename = args[0];
try {
IteratorView frame = new IteratorView(filename) ;
frame.addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent e) {
System.exit(0);
}
});
frame.setSize(640, 480);
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace(System.err);
}
}
}
/** Constructor */
public IteratorView (String filename) {
super("IteratorView: "+filename);
try {
parser = new DOMParser();
parser.setFeature("http://apache.org/xml/features/dom/defer-node-expansion", true);
parser.setFeature("http://apache.org/xml/features/continue-after-fatal-error", true);
Errors errors = new Errors();
parser.setErrorHandler(errors);
parser.parse(filename);
document = parser.getDocument();
if (!document.isSupported("Traversal", "2.0")) {
// This cannot happen with ou DOMParser...
throw new RuntimeException("This DOM Document does not support Traversal");
}
// jtree UI setup
jtree = new DOMTreeFull((Node)document);
jtree.getSelectionModel().setSelectionMode
(TreeSelectionModel.SINGLE_TREE_SELECTION);
jtree.setRootVisible(false);
// Listen for when the selection changes, call nodeSelected(node)
jtree.addTreeSelectionListener(
new TreeSelectionListener() {
public void valueChanged(TreeSelectionEvent e) {
TreePath path = (TreePath)e.getPath();
TreeNode treeNode = (TreeNode)path.getLastPathComponent();
if(jtree.getSelectionModel().isPathSelected(path))
nodeSelected(treeNode);
}
}
);
//expandTree();
// controls
//iterate panel
JPanel iteratePanel = new JPanel();
iteratePanel.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createTitledBorder("Iterate"),
BorderFactory.createEmptyBorder(4, 4, 4, 4)
));
prevButton = new JButton("Previous");
iteratePanel.add(prevButton);
prevButton.addActionListener(this);
nextButton = new JButton("Next");
iteratePanel.add(nextButton);
nextButton.addActionListener(this);
//DOM tree panel
JPanel domPanel = new JPanel();
domPanel.setLayout(new BorderLayout());
domPanel.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createTitledBorder("Selected Node"),
BorderFactory.createEmptyBorder(4, 4, 4, 4)
));
removeButton = new JButton("Remove Selected Node");
domPanel.add(removeButton, BorderLayout.NORTH);
removeButton.addActionListener(this);
addButton = new JButton("Add Text Node");
addText = new JTextField(10);
domPanel.add(addButton, BorderLayout.CENTER);
domPanel.add(addText, BorderLayout.SOUTH);
addButton.addActionListener(this);
// iterator settings
JPanel settingsPanel = new JPanel();
settingsPanel.setLayout(new BorderLayout());
settingsPanel.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createTitledBorder("Iterator Settings"),
BorderFactory.createEmptyBorder(4, 4, 4, 4)
));
JPanel iteratorPanel = new JPanel();
newIterator = new JButton("createNodeIterator");
expandERs = new JCheckBox("expandEntityReferences");
iteratorPanel.add(newIterator);
expandERs.setSelected(true);
iteratorPanel.add(expandERs);
settingsPanel.add(iteratorPanel, BorderLayout.NORTH);
newIterator.addActionListener(this);
JPanel whatPanel = new JPanel();
whatPanel.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createTitledBorder("whatToShow"),
BorderFactory.createEmptyBorder(4, 4, 4, 4)
));
whatToShow = new JList(DOMTreeFull.whatArray);
JScrollPane whatScroll =
new JScrollPane(whatToShow) {
private static final long serialVersionUID = 3546357344813724213L;
public Dimension getPreferredSize(){
return new Dimension(200, 75 );
}
};
whatPanel.add(whatScroll);
JPanel filterPanel = new JPanel();
filterPanel.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createTitledBorder("NodeNameFilter"),
BorderFactory.createEmptyBorder(4, 4, 4, 4)
));
filterPanel.setLayout(new BorderLayout());
match = new JCheckBox("match/ignore node name", true);
nameFilter = new JTextField(10);
filterPanel.add(match, BorderLayout.NORTH);
filterPanel.add(nameFilter, BorderLayout.SOUTH);
settingsPanel.add(whatPanel, BorderLayout.WEST);
settingsPanel.add(filterPanel, BorderLayout.EAST);
// Listen for when the selection changes, call nodeSelected(node)
whatToShow.addListSelectionListener(
new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
// do nothing on selection...
}
}
);
JPanel controlsPanel = new JPanel(new BorderLayout());
JPanel buttonsPanel = new JPanel(new BorderLayout());
buttonsPanel.add(iteratePanel, BorderLayout.NORTH);
buttonsPanel.add(domPanel, BorderLayout.SOUTH);
controlsPanel.add(buttonsPanel, BorderLayout.WEST);
controlsPanel.add(settingsPanel, BorderLayout.CENTER);
controlsPanel.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createTitledBorder("Controls"),
BorderFactory.createEmptyBorder(4, 4, 4, 4)
));
// tree panel
JPanel treePanel = new JPanel(new BorderLayout());
JScrollPane treeScroll = new JScrollPane(jtree) ;
treeScroll.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createTitledBorder("Tree View"),
BorderFactory.createEmptyBorder(4, 4, 4, 4)
));
// message text UI setup
messageText = new JTextArea(3,5);
JPanel messagePanel = new JPanel(new BorderLayout());
messageScroll = new JScrollPane(messageText);
messagePanel.add(messageScroll);
messagePanel.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createTitledBorder("Messages"),
BorderFactory.createEmptyBorder(4, 4, 4, 4)
));
JPanel mainPanel = new JPanel();
mainPanel.setLayout(new BorderLayout());
mainPanel.add(controlsPanel, BorderLayout.NORTH);
mainPanel.add(treeScroll, BorderLayout.CENTER);
mainPanel.add(messagePanel, BorderLayout.SOUTH);
getContentPane().add(mainPanel);
Hashtable errorNodes = errors.getErrorNodes();
Enumeration elements = errorNodes.elements();
while (elements.hasMoreElements()) {
//*** append errors to messageText
messageText.append( (String)elements.nextElement());
}
// This cast must work, because we have tested above
// with document.isSupported("Traversal")
iterator = ((DocumentTraversal)document).
createNodeIterator(
document,
NodeFilter.SHOW_ALL,
new NameNodeFilter(),
true);
} catch (Exception e) {
e.printStackTrace(System.err);
}
}
public void actionPerformed(ActionEvent e) {
if (e.getSource() == newIterator) {
Node node = document;
// whatToShow section
int [] indices = whatToShow.getSelectedIndices();
int mask = 0x0;
for (int i = 0; i < indices.length; i++) {
if (indices[i] == 0) {
mask = 0xFFFF;
break;
} else {
mask = mask | 1<© 2015 - 2025 Weber Informatics LLC | Privacy Policy