Workflow checkpoint.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@3399 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/jbpm/webapp/servlet/ProcessImageServlet.java

@@ -0,0 +1,55 @@
+/*
+ * 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 );
+	}
+}