morten 01/05/03 08:42:28
Added: java/src/org/apache/xalan/xsltc/demo/applet
TransformApplet.java
java/src/org/apache/xalan/xsltc/demo/brazil
TransformHandler.java
java/src/org/apache/xalan/xsltc/demo/servlet Compile.java
Transform.java
Log:
Added 3 demos that show how translets can be run in an applet, servlet
or brazil handler. (Brazil is a prototype from sunlabs that web-enables
applications without the need for a web server.)
Revision Changes Path
1.1
xml-xalan/java/src/org/apache/xalan/xsltc/demo/applet/TransformApplet.java
Index: TransformApplet.java
===================================================================
/*
* @(#)$Id: TransformApplet.java,v 1.1 2001/05/03 15:42:19 morten Exp $
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 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 "Xalan" 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 [EMAIL PROTECTED]
*
* 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) 2001, Sun
* Microsystems., http://www.sun.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* @author Morten Jorgensen
* @author Jacek Ambroziak
*
*/
package org.apache.xalan.xsltc.demo.applet;
import java.io.*;
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.xml.sax.XMLReader;
import org.xml.sax.SAXException;
import org.apache.xalan.xsltc.*;
import org.apache.xalan.xsltc.runtime.*;
import org.apache.xalan.xsltc.dom.*;
public final class TransformApplet extends Applet {
// Single document cache
private String _documentUrl = "";
private DOMImpl _dom = null;
private DTDMonitor _dtdMonitor = null;
/**
* This class implements a dialog box used for XSL messages/comments
*/
public class MessageFrame extends Frame {
public Frame frame;
public class ButtonHandler implements ActionListener {
public void actionPerformed(ActionEvent e) {
frame.setVisible(false);
}
}
/**
* This method handles xml:message and xsl:comment by displaying
* the message/comment in a dialog box.
*/
public MessageFrame(String title, String message) {
super(title);
frame = this; // Make visible to ButtonHandler
setSize(320,200);
// Create a panel for the message itself
Panel center = new Panel();
center.add(new Label(message));
// Create a panel for the 'OK' button
Panel bottom = new Panel();
Button okButton = new Button(" OK ");
okButton.addActionListener(new ButtonHandler());
bottom.add(okButton);
// Add the two panels to the window/frame
add(center, BorderLayout.CENTER);
add(bottom,BorderLayout.SOUTH);
// Show the fecking thing
setVisible(true);
}
}
/**
* The appled uses this method to display messages and comments
* generated by xsl:message and xsl:comment elements.
*/
public class AppletMessageHandler extends MessageHandler {
public void displayMessage(String msg) {
MessageFrame z = new MessageFrame("XSL transformation alert",msg);
}
}
/**
* Reads the input document from the supplied URL and builds the
* internal "DOM" tree.
*/
private DOM getDOM(String url) throws Exception {
// Check if the document is already in the 1-document cache
if (url.equals(_documentUrl) == false) {
// Create a SAX parser and get the XMLReader object it uses
final SAXParserFactory factory = SAXParserFactory.newInstance();
final SAXParser parser = factory.newSAXParser();
final XMLReader reader = parser.getXMLReader();
// Set the DOM's builder as the XMLReader's SAX2 content handler
_dom = new DOMImpl();
reader.setContentHandler(_dom.getBuilder());
// Create a DTD monitor and pass it to the XMLReader object
final DTDMonitor dtdMonitor = new DTDMonitor();
dtdMonitor.handleDTD(reader);
// Parse the input document
reader.parse(url);
// Update the 1-document cahce with this DOM
_documentUrl = url;
}
return _dom;
}
/**
* This method is the main body of the applet. The method is called
* by some JavaScript code in an HTML document.
*/
public String transform(Object arg1, Object arg2) {
// Convert the two arguments to strings.
final String transletName = (String)arg1;
final String documentUrl = (String)arg2;
// Initialise the output stream
final StringWriter sout = new StringWriter();
final PrintWriter out = new PrintWriter(sout);
try {
// Check that the parameters are valid
if (transletName == null || documentUrl == null) {
out.println("<h1>Transformation error</h1>");
out.println("The parameters <b><tt>class</tt></b> "+
"and <b><tt>source</tt></b> must be specified");
}
else {
// Instanciate a message handler for xsl:message/xsl:comment
AppletMessageHandler msgHandler = new AppletMessageHandler();
// Get a refenrence to the translet class
final Class tc = Class.forName(transletName);
// Instanciate and initialise the tranlet object
AbstractTranslet translet = (AbstractTranslet)tc.newInstance();
((AbstractTranslet)translet).setMessageHandler(msgHandler);
// Initialise the translet's output handler
DefaultSAXOutputHandler saxHandler =
new DefaultSAXOutputHandler(out);
TextOutput textOutput = new TextOutput(saxHandler);
getDOM(documentUrl);
final long start = System.currentTimeMillis();
// Set size of key/id indices
translet.setIndexSize(_dom.getSize());
// If there are any elements with ID attributes, build an index
_dtdMonitor.buildIdIndex(_dom, 0, translet);
// Pass unparsed entities to translet
translet.setUnparsedEntityURIs(_dtdMonitor.
getUnparsedEntityURIs());
// Do the actual transformation
translet.transform(_dom, textOutput);
final long done = System.currentTimeMillis() - start;
out.println("<!-- transformed by XSLTC in "+done+"msecs -->");
}
// Now close up the sink, and return the HTML output in the
// StringWrite object as a string.
out.close();
return sout.toString();
}
catch (RuntimeException e) {
out.close();
return sout.toString();
}
catch (Exception e) {
out.println("<h1>exception</h1>");
out.println(e.toString());
out.close();
return sout.toString();
}
}
}
1.1
xml-xalan/java/src/org/apache/xalan/xsltc/demo/brazil/TransformHandler.java
Index: TransformHandler.java
===================================================================
/*
* @(#)$Id: TransformHandler.java,v 1.1 2001/05/03 15:42:23 morten Exp $
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 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 "Xalan" 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 [EMAIL PROTECTED]
*
* 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) 2001, Sun
* Microsystems., http://www.sun.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* @author Morten Jorgensen
*
*/
package org.apache.xalan.xsltc.demo.brazil;
import java.io.*;
import java.util.NoSuchElementException;
import java.util.StringTokenizer;
import java.util.Vector;
import org.xml.sax.*;
import org.apache.xalan.xsltc.*;
import org.apache.xalan.xsltc.runtime.*;
import org.apache.xalan.xsltc.dom.*;
import sunlabs.brazil.server.Handler;
import sunlabs.brazil.server.Request;
import sunlabs.brazil.server.Server;
/**
* This class implements the Handler interface from the Brazil project
* http://www.sun.com/research/brazil/
*/
public class TransformHandler implements Handler {
// A cache for internal DOM structures
private static DocumentCache cache = null;
// These two are used while parsing the parameters in the URL
private final String PARAM_TRANSLET = "translet=";
private final String PARAM_DOCUMENT = "document=";
private final String PARAM_STATS = "stats=";
// All output goes here:
private PrintWriter _out = null;
/**
* Dump an error message to output
*/
public void errorMessage(String message, Exception e) {
if (_out == null) return;
_out.println("<h1>XSL transformation error</h1>"+message);
_out.println("<br>Exception:</br>"+e.toString());
}
public void errorMessage(String message) {
if (_out == null) return;
_out.println("<h1>XSL transformation error</h1>"+message);
}
/**
* This method is run when the Brazil proxy is loaded
*/
public boolean init(Server server, String prefix) {
return true;
}
/**
* This method is run for every HTTP request sent to the proxy
*/
public boolean respond(Request request) throws IOException {
// Initialise the output buffer
final StringWriter sout = new StringWriter();
_out = new PrintWriter(sout);
// These two hold the parameters from the URL 'translet' and 'document'
String transletName = null;
String document = null;
String stats = null;
// Get the parameters from the URL
final StringTokenizer params = new StringTokenizer(request.query,"&");
while (params.hasMoreElements()) {
final String param = params.nextToken();
if (param.startsWith(PARAM_TRANSLET)) {
transletName = param.substring(PARAM_TRANSLET.length());
}
else if (param.startsWith(PARAM_DOCUMENT)) {
document = param.substring(PARAM_DOCUMENT.length());
}
else if (param.startsWith(PARAM_STATS)) {
stats = param.substring(PARAM_STATS.length());
}
}
try {
// Initialize the document cache with 32 DOM slots
if (cache == null) cache = new DocumentCache(32);
// Output statistics if user looked up "server:port/?stats=xxx"
if (stats != null) {
cache.getStatistics(_out); // get cache statistics (in HTML)
}
// Make sure that both parameters were specified
else if ((transletName == null) || (document == null)) {
errorMessage("Parameters <b><tt>translet</tt></b> and/or "+
"<b><tt>document</tt></b> not specified.");
}
else {
// Get a reference to the translet class
Class transletClass = Class.forName(transletName);
// Instanciate the translet object (inherits AbstractTranslet)
AbstractTranslet translet =
(AbstractTranslet)transletClass.newInstance();
translet.setDOMCache(cache);
// Get the DOM from the DOM cache
DOMImpl dom = cache.retrieveDocument(document, 0, translet);
if (dom == null) {
errorMessage("Could not locate: \"<b>"+document+"\"</b>");
}
else {
// Initialise the translet's output handler
DefaultSAXOutputHandler saxHandler =
new DefaultSAXOutputHandler(_out);
// Do the actual transformation
final long start = System.currentTimeMillis();
translet.transform(dom, new TextOutput(saxHandler));
final long done = System.currentTimeMillis() - start;
_out.println("<!-- transformed by XSLTC in "+done+"ms -->");
}
}
}
catch (SAXException e) {
errorMessage("Error parsing document \""+document+"\"");
}
catch (ClassNotFoundException e) {
errorMessage("Could not locate the translet class: \""+
transletName+"\"<br>Exception:</br>",e);
}
catch (Exception e) {
errorMessage("Internal error.",e);
}
// Pass the transformation output as the HTTP response
request.sendResponse(sout.toString());
return true;
}
}
1.1
xml-xalan/java/src/org/apache/xalan/xsltc/demo/servlet/Compile.java
Index: Compile.java
===================================================================
/*
* @(#)$Id: Compile.java,v 1.1 2001/05/03 15:42:26 morten Exp $
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 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 "Xalan" 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 [EMAIL PROTECTED]
*
* 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) 2001, Sun
* Microsystems., http://www.sun.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* @author Morten Jorgensen
* @author Jacek Ambroziak
*
*/
package org.apache.xalan.xsltc.demo.servlet;
import java.io.*;
import java.text.*;
import java.util.*;
import java.net.URL;
import javax.servlet.*;
import javax.servlet.http.*;
import org.apache.xalan.xsltc.compiler.*;
import org.apache.xalan.xsltc.compiler.util.*;
import org.apache.xalan.xsltc.util.getopt.*;
public class Compile extends HttpServlet {
/**
* Main servlet entry point. The servlet reads a stylesheet from the
* URI specified by the "sheet" parameter. The compiled Java class
* ends up in the CWD of the web server (a better solution would be
* to have an environment variable point to a translet directory).
*/
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String stylesheetName = request.getParameter("sheet");
out.println("<html><head>");
out.println("<title>Servlet Stylesheet Compilation</title>");
out.println("</head><body>");
if (stylesheetName == null) {
out.println("<h1>Compilation error</h1>");
out.println("The parameter <b><tt>sheet</tt></b> "+
"must be specified");
}
else {
XSLTC xsltc = new XSLTC();
xsltc.init();
xsltc.compile(new URL(stylesheetName));
out.println("<h1>Compilation successful</h1>");
out.println("The stylesheet was compiled into the translet "+
"class "+xsltc.getClassName() + " and is now "+
"available for transformations on this server.");
}
out.println("</body></html>");
}
}
1.1
xml-xalan/java/src/org/apache/xalan/xsltc/demo/servlet/Transform.java
Index: Transform.java
===================================================================
/*
* @(#)$Id: Transform.java,v 1.1 2001/05/03 15:42:27 morten Exp $
*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2001 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 "Xalan" 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 [EMAIL PROTECTED]
*
* 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) 2001, Sun
* Microsystems., http://www.sun.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* @author Morten Jorgensen
* @author Jacek Ambroziak
*
*/
package org.apache.xalan.xsltc.demo.servlet;
import java.io.*;
import java.text.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import org.xml.sax.*;
import org.apache.xalan.xsltc.*;
import org.apache.xalan.xsltc.runtime.*;
import org.apache.xalan.xsltc.dom.*;
public final class Transform extends HttpServlet {
/*
* This is a document cache with 32 document slots. This servlet
* returns cache statistics if the 'stats' parameter is passed
* with the HTTP request in doGet().
*/
private static DocumentCache cache = null;
/**
* Main entry point
*/
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
// Initialise the output writer
response.setContentType("text/html");
PrintWriter out = response.getWriter();
// Get the two paramters "class" and "source".
String className = request.getParameter("class");
String documentURI = request.getParameter("source");
try {
// Initialize document cache with 32 DOM slots
if (cache == null) cache = new DocumentCache(32);
if (request.getParameter("stats") != null) {
cache.getStatistics(out);
}
else if ((className == null) || (documentURI == null)) {
out.println("<h1>XSL transformation error</h1>");
out.println("The parameters <b><tt>class</tt></b> and " +
"<b><tt>source</tt></b> must be specified");
}
else {
// Get a reference to the translet class (not object yet)
Class tc = Class.forName(className);
// Instanciate a translet object (inherits AbstractTranslet)
AbstractTranslet translet = (AbstractTranslet)tc.newInstance();
// Set the document cache for the translet. This is needed in
// case the translet uses the document() function.
translet.setDOMCache(cache);
// Read input document from the DOM cache
DOMImpl dom = cache.retrieveDocument(documentURI, 0, translet);
// Initialize the output handler
DefaultSAXOutputHandler saxHandler =
new DefaultSAXOutputHandler(out);
// Start the transformation
final long start = System.currentTimeMillis();
translet.transform(dom, new TextOutput(saxHandler));
final long done = System.currentTimeMillis() - start;
out.println("<!-- transformed by XSLTC in "+done+"msecs -->");
}
}
catch (IOException e) {
out.println("<h1>Error</h1>");
out.println("Could not locate source document: " + documentURI);
out.println(e.toString());
}
catch (ClassNotFoundException e) {
out.println("<h1>Error</h1>");
out.println("Could not locate the translet class: " + className);
out.println(e.toString());
}
catch (SAXException e) {
out.println("<h1>Error</h1>");
out.println("Error parsing document " + documentURI);
}
catch (Exception e) {
out.println("<h1>Error</h1>");
out.println(e.toString());
}
}
}
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