TransformerWindowpublic class TransformerWindow extends JFrame | A secondary JFrame that shows the result of a single XSLT
transformation. This frame has a JTabbedPane interface, showing
the transformation result, error messages, and the XML output. |
| Fields Summary |
|---|
| private String | resultText | | private JTabbedPane | tabPane | | private JTextArea | textOutputArea | | private XMLOutputPanel | xmlOutputPanel | | private ErrorListenerModel | errModel | | private JTable | errorTable | | private JTextArea | errorDetailArea | | private String | xsltURL |
| Constructors Summary |
|---|
public TransformerWindow()Construct a new instance and layout the GUI components.
super("XSLT Transformation");
// add the tab pane to the frame
Container cp = getContentPane();
cp.add(this.tabPane, BorderLayout.CENTER);
// add individual tabs
this.tabPane.add("Text Output", new JScrollPane(this.textOutputArea));
this.tabPane.add("Transformation Problems",
createErrorPanel());
this.tabPane.add("XML Output", this.xmlOutputPanel);
// listen to new tab selections
this.tabPane.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent evt) {
tabChanged();
}
});
this.textOutputArea.setEditable(false);
// listen to selection changes on the table of errors
this.errorTable.getSelectionModel().addListSelectionListener(
new ListSelectionListener() {
public void valueChanged(ListSelectionEvent evt) {
if (!evt.getValueIsAdjusting()) {
showErrorDetails();
}
}
});
pack();
|
| Methods Summary |
|---|
| private javax.swing.JComponent | createErrorPanel()
JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
this.errorTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
int size = this.errorDetailArea.getFont().getSize();
this.errorDetailArea.setEditable(false);
this.errorDetailArea.setFont(
new Font("Monospaced", Font.PLAIN, size+2));
splitPane.setTopComponent(new JScrollPane(this.errorTable));
splitPane.setBottomComponent(new JScrollPane(this.errorDetailArea));
return splitPane;
| | private void | showErrorDetails()Show details for the currently selected error.
int selRow = this.errorTable.getSelectedRow();
this.errorDetailArea.setText(this.errModel.getDetailReport(selRow));
| | private void | tabChanged()
try {
setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
int selIndex = this.tabPane.getSelectedIndex();
String selTab = this.tabPane.getTitleAt(selIndex);
// when the XML tab is selected, set the text on the XML panel.
// Although the text may not be XML, we won't know that until
// it is parsed.
if ("XML Output".equals(selTab)) {
this.xmlOutputPanel.setXML(this.resultText,
this.xsltURL);
}
} finally {
setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
}
| | public void | transform(java.io.File xmlFile, java.io.File xsltFile)Perform an XSLT transformation.
setVisible(true);
try {
// figure out the directory of the XSLT file. This will be
// used to locate the DTD
if (xsltFile != null) {
File xsltDir = xsltFile.getParentFile();
if (xsltDir.isDirectory()) {
this.xsltURL = xsltDir.toURL().toExternalForm();
}
}
TransformerFactory transFact = TransformerFactory.newInstance();
// register the table model as an error listener
transFact.setErrorListener(this.errModel);
Transformer trans = transFact.newTransformer(
new StreamSource(xsltFile));
// check for null, because the factory might not throw
// exceptions when the call to newTransformer() fails. This
// is because we registered an error listener that does not
// throw exceptions.
if (trans != null) {
trans.setErrorListener(this.errModel);
// capture the result of the XSLT transformation
StringWriter sw = new StringWriter();
trans.transform(new StreamSource(xmlFile),
new StreamResult(sw));
// show the results
this.resultText = sw.toString();
this.textOutputArea.setText(this.resultText);
}
} catch (TransformerConfigurationException tce) {
try {
this.errModel.fatalError(tce);
} catch (TransformerException ignored) {
}
} catch (TransformerException te) {
try {
this.errModel.fatalError(te);
} catch (TransformerException ignored) {
}
} catch (Exception unexpected) {
System.err.println(
"The XSLT processor threw an unexpected exception");
unexpected.printStackTrace();
}
// show the error tab
if (this.errModel.hasErrors()) {
this.tabPane.setSelectedIndex(1);
}
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