?? adminservlet.java
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/*
* =================================================================
*
* 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 acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software
* itself, if and wherever such third-party acknowlegements
* normally appear.
*
* 4. The names "The Jakarta Project", "junitbook", "jia",
* "JUnit in Action" 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 names without prior written
* permission of the Apache Group.
*
* 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. For
* more information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package junitbook.pages;
import java.util.Collection;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class AdminServlet extends HttpServlet
{
public static final String COMMAND_PARAM = "command";
public String getCommand(HttpServletRequest request)
throws ServletException
{
String command = request.getParameter(COMMAND_PARAM);
if (command == null)
{
throw new ServletException("Missing parameter ["
+ COMMAND_PARAM + "]");
}
return command;
}
public void callView(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
request.getRequestDispatcher("/results.jsp")
.forward(request, response);
}
public Collection executeCommand(String command)
throws Exception
{
throw new RuntimeException("not implemented");
}
public void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException
{
try
{
Collection results =
executeCommand(getCommand(request));
request.setAttribute("results", results);
callView(request, response);
}
catch (Exception e)
{
throw new ServletException(
"Failed to execute command", e);
}
}
}
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