cvs commit: jakarta-struts/src/examples/org/apache/struts/webapp/exercise ImageAction.java

[hu...@apache.org]

husted      2004/01/18 05:13:17

  Added:       src/examples/org/apache/struts/webapp/exercise
                        ImageAction.java
  Log:
  Apply #26127 "<html:img> tag lacks "action" attribute" submitted by Firepica.
  
  Revision  Changes    Path
  1.1                  jakarta-struts/src/examples/org/apache/struts/webapp/exercise/ImageAction.java
  
  Index: ImageAction.java
  ===================================================================
  /*
   * $Header: /home/cvs/jakarta-struts/src/examples/org/apache/struts/webapp/exercise/ImageAction.java,v 1.1 2004/01/18 13:13:17 husted Exp $
   * $Revision: 1.1 $
   * $Date: 2004/01/18 13:13:17 $
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999-2001 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 acknowledgement:
   *       "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", "Struts", 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.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  
  package org.apache.struts.webapp.exercise;
  
  
  import org.apache.struts.action.Action;
  import org.apache.struts.action.ActionForm;
  import org.apache.struts.action.ActionForward;
  import org.apache.struts.action.ActionMapping;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import java.io.InputStream;
  import java.io.OutputStream;
  
  
  /**
   * Read image from resource given as ActionMapping parameter
   * and copy to output stream.
   *
   * @version $Revision: 1.1 $ $Date: 2004/01/18 13:13:17 $
   */
  
  public class ImageAction extends Action {
  
  
      /**
       * Read image from resource given as ActionMapping parameter
       * and copy to output stream.
       *
       * @exception java.lang.Exception on input/output error
       */
      public ActionForward execute(
              ActionMapping mapping,
              ActionForm form,
              HttpServletRequest request,
              HttpServletResponse response)
              throws Exception {
  
              // e.g. /$module/struts-power.gif
              // :FIXME: Should compute module
          String image = mapping.getParameter();
  
          byte[] buffer = new byte[2048];
          int bytesRead;
          InputStream input =
                  getServlet().getServletContext().getResourceAsStream(image);
          OutputStream
                  out = response.getOutputStream();
  
          while ((bytesRead = input.read(buffer)) != -1) {
              out.write(buffer, 0, bytesRead);
          }
          out.close();
  
          return null;
      }
  
  }
  
  

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