Package org.jbpm.webapp.servlet

Source Code of org.jbpm.webapp.servlet.ProcessImageServlet

/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jbpm.webapp.servlet;

import java.io.IOException;
import java.io.OutputStream;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.jbpm.JbpmContext;
import org.jbpm.graph.def.ProcessDefinition;

public class ProcessImageServlet extends HttpServlet {
 
  private static final long serialVersionUID = 1L;

  protected void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    long processDefinitionId = Long.parseLong( request.getParameter( "definitionId" ) );
    JbpmContext jbpmContext = JbpmContext.getCurrentJbpmContext();
    ProcessDefinition processDefinition = jbpmContext.getGraphSession().loadProcessDefinition(processDefinitionId);
    byte[] bytes = processDefinition.getFileDefinition().getBytes("processimage.jpg");
    OutputStream out = response.getOutputStream();
    out.write(bytes);
    out.flush();
   
    // leave this in.  it is in case we want to set the mime type later.
    // get the mime type
    // String contentType = URLConnection.getFileNameMap().getContentTypeFor( fileName );
    // set the content type (=mime type)
    // response.setContentType( contentType );
  }
}
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