/**
* Licensed under the Artistic License; you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://displaytag.sourceforge.net/license.html
*
* THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
package org.displaytag.sample;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet used to display jsp source for example pages.
* @author Fabrizio Giustina
* @version $Revision$ ($Author$)
*/
public class DisplaySourceServlet extends HttpServlet
{
/**
* D1597A17A6.
*/
private static final long serialVersionUID = 899149338534L;
/**
* the folder containg example pages.
*/
private static final String EXAMPLE_FOLDER = "/"; //$NON-NLS-1$
/**
* @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest, HttpServletResponse)
*/
protected final void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException,
IOException
{
String jspFile = request.getRequestURI();
// lastIndexOf(".") can't be null, since the servlet is mapped to ".source"
jspFile = jspFile.substring(0, jspFile.lastIndexOf(".")); //$NON-NLS-1$
if (jspFile.lastIndexOf("/") != -1) //$NON-NLS-1$
{
jspFile = jspFile.substring(jspFile.lastIndexOf("/") + 1); //$NON-NLS-1$
}
// only want to show sample pages, don't play with url!
if (!jspFile.startsWith("example-")) //$NON-NLS-1$
{
throw new ServletException("Invalid file selected: " + jspFile); //$NON-NLS-1$
}
String fullName = EXAMPLE_FOLDER + jspFile;
InputStream inputStream = getServletContext().getResourceAsStream(fullName);
if (inputStream == null)
{
throw new ServletException("Unable to find JSP file: " + jspFile); //$NON-NLS-1$
}
response.setContentType("text/html"); //$NON-NLS-1$
PrintWriter out = response.getWriter();
out.println("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" " //$NON-NLS-1$
+ "\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">"); //$NON-NLS-1$
out.println("<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">"); //$NON-NLS-1$
out.println("<head>"); //$NON-NLS-1$
out.println("<title>"); //$NON-NLS-1$
out.println("source for " + jspFile); //$NON-NLS-1$
out.println("</title>"); //$NON-NLS-1$
out.println("<meta http-equiv=\"content-type\" content=\"text/html; charset=ISO-8859-1\" />"); //$NON-NLS-1$
out.println("</head>"); //$NON-NLS-1$
out.println("<body>"); //$NON-NLS-1$
out.println("<pre>"); //$NON-NLS-1$
for (int currentChar = inputStream.read(); currentChar != -1; currentChar = inputStream.read())
{
if (currentChar == '<')
{
out.print("<"); //$NON-NLS-1$
}
else
{
out.print((char) currentChar);
}
}
out.println("</pre>"); //$NON-NLS-1$
out.println("</body>"); //$NON-NLS-1$
out.println("</html>"); //$NON-NLS-1$
}
}