code: /*
   * 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.
   */
  /*
   * $Id$
   */
  
  import java.io.IOException;
  import java.io.PrintWriter;
  
  import java.net.URL;
  
  import javax.servlet.ServletException;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.apache.xalan.xsltc.compiler.XSLTC;
  
  /**
   * @author Morten Jorgensen
   * @author Jacek Ambroziak
   */
  public class CompileServlet 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>");
      }
  }
  