package org.apache.maven.wagon.tck.http.fixture;

 /*

  * 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.

  */

 import javax.servlet.ServletException;

 import javax.servlet.http.HttpServlet;

 import javax.servlet.http.HttpServletRequest;

 import javax.servlet.http.HttpServletResponse;

 import java.io.IOException;

 public class RedirectionServlet

     extends HttpServlet

 {

     private static final long serialVersionUID = 1L;

     private final String targetPath;

     private final int code;

     private final int maxRedirects;

     private int redirectCount = 0;

     private final String myPath;

     public RedirectionServlet( final int code, final String targetPath )

     {

         this.code = code;

         this.targetPath = targetPath;

         this.maxRedirects = 1;

         this.myPath = null;

     }

     public RedirectionServlet( final int code, final String myPath, final String targetPath, final int maxRedirects )

     {

         this.code = code;

         this.myPath = myPath;

         this.targetPath = targetPath;

         this.maxRedirects = maxRedirects;

     }

     public int getRedirectCount()

     {

         return redirectCount;

     }

     @Override

     protected void service( final HttpServletRequest req, final HttpServletResponse resp )

         throws ServletException, IOException

     {

         redirectCount++;

         if ( myPath == null )

         {

             resp.setStatus( code );

             resp.setHeader( "Location", targetPath );

         }

         else if ( maxRedirects < 0 )

         {

             resp.setStatus( code );

             resp.setHeader( "Location", myPath );

         }

         else if ( redirectCount <= maxRedirects )

         {

             resp.setStatus( code );

             resp.setHeader( "Location", myPath + "/" + redirectCount );

         }

         else

         {

             resp.setStatus( code );

             resp.setHeader( "Location", targetPath );

         }

     }

 }