| /* |
| * @(#)$Id$ |
| * |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2001-2003 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 apache@apache.org. |
| * |
| * 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 |
| * |
| */ |
| |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import javax.xml.transform.Transformer; |
| import javax.xml.transform.TransformerFactory; |
| import javax.xml.transform.TransformerException; |
| import javax.xml.transform.stream.StreamResult; |
| import javax.xml.transform.stream.StreamSource; |
| |
| import org.xml.sax.SAXException; |
| |
| /** |
| * This servlet demonstrates how XSL transformations can be made available as |
| * a web service. See the CompileServlet for an example on how stylesheets |
| * can be pre-compiled before this servlet is invoked. |
| * |
| * Note that the XSLTC transformation engine is invoked through the JAXP |
| * interface, using the XSLTC "use-classpath" attribute. The |
| * "use-classpath" attribute specifies to the XSLTC TransformerFactory |
| * that a precompiled version of the stylesheet (translet) may be available, |
| * and that that should be used in preference to recompiling the stylesheet. |
| */ |
| public final class TransformServlet extends HttpServlet { |
| |
| /** |
| * Main servlet 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 transletName = request.getParameter("class"); |
| String documentURI = request.getParameter("source"); |
| |
| try { |
| if ((transletName == 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 { |
| TransformerFactory tf = TransformerFactory.newInstance(); |
| try { |
| tf.setAttribute("use-classpath", Boolean.TRUE); |
| } catch (IllegalArgumentException iae) { |
| System.err.println( |
| "Could not set XSLTC-specific TransformerFactory " |
| + "attributes. Transformation failed."); |
| } |
| Transformer t = |
| tf.newTransformer(new StreamSource(transletName)); |
| |
| // Start the transformation |
| final long start = System.currentTimeMillis(); |
| t.transform(new StreamSource(documentURI), |
| new StreamResult(out)); |
| final long done = System.currentTimeMillis() - start; |
| out.println("<!-- transformed by XSLTC in "+done+"msecs -->"); |
| } |
| } |
| catch (Exception e) { |
| out.println("<h1>Error</h1>"); |
| out.println(e.toString()); |
| } |
| } |
| } |