Java tutorial
/* * 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. */ package com.glaf.jbpm.web.springmvc; import java.io.IOException; import java.io.OutputStream; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Map.Entry; import java.util.Set; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.lang3.StringUtils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.jbpm.JbpmContext; import org.jbpm.JbpmException; import org.jbpm.graph.def.ProcessDefinition; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.multipart.MultipartHttpServletRequest; import org.springframework.web.servlet.ModelAndView; import com.glaf.core.config.ViewProperties; import com.glaf.core.util.LogUtils; import com.glaf.core.util.RequestUtils; import com.glaf.jbpm.config.JbpmExtensionReader; import com.glaf.jbpm.container.ProcessContainer; import com.glaf.jbpm.context.Context; import com.glaf.jbpm.deploy.MxJbpmProcessDeployer; import com.glaf.jbpm.manager.JbpmExtensionManager; import com.glaf.jbpm.model.Extension; @Controller("/jbpm/deploy") @RequestMapping("/jbpm/deploy") public class MxJbpmDeployController { private final static Log logger = LogFactory.getLog(MxJbpmDeployController.class); public MxJbpmDeployController() { } @RequestMapping(method = RequestMethod.GET) public ModelAndView showDeploy(HttpServletRequest request) { String view = request.getParameter("view"); if (StringUtils.isNotEmpty(view)) { return new ModelAndView(view); } String x_view = ViewProperties.getString("jbpm_deploy.showDeploy"); if (StringUtils.isNotEmpty(x_view)) { return new ModelAndView(x_view); } return new ModelAndView("/jbpm/deploy/showDeploy"); } @RequestMapping("/showConfig") public ModelAndView showConfig(HttpServletRequest request) { String jx_view = request.getParameter("jx_view"); if (StringUtils.isNotEmpty(jx_view)) { return new ModelAndView(jx_view); } String x_view = ViewProperties.getString("jbpm_deploy.showConfig"); if (StringUtils.isNotEmpty(x_view)) { return new ModelAndView(x_view); } return new ModelAndView("/jbpm/deploy/showConfig"); } @RequestMapping(value = "/deploy", method = RequestMethod.POST) public ModelAndView deploy(HttpServletRequest request, HttpServletResponse response) { String archive = request.getParameter("archive"); if (LogUtils.isDebug()) { logger.debug("deploying archive " + archive); } MxJbpmProcessDeployer deployer = new MxJbpmProcessDeployer(); byte[] bytes = null; JbpmContext jbpmContext = null; try { jbpmContext = ProcessContainer.getContainer().createJbpmContext(); if (jbpmContext != null && jbpmContext.getSession() != null) { MultipartHttpServletRequest req = (MultipartHttpServletRequest) request; Map<String, MultipartFile> fileMap = req.getFileMap(); Set<Entry<String, MultipartFile>> entrySet = fileMap.entrySet(); for (Entry<String, MultipartFile> entry : entrySet) { MultipartFile mFile = entry.getValue(); if (mFile.getOriginalFilename() != null && mFile.getSize() > 0) { ProcessDefinition processDefinition = deployer.deploy(jbpmContext, mFile.getBytes()); bytes = processDefinition.getFileDefinition().getBytes("processimage.jpg"); response.setContentType("image/jpeg"); response.setHeader("Pragma", "No-cache"); response.setHeader("Expires", "-1"); response.setHeader("ICache-Control", "no-cache"); response.setDateHeader("Expires", 0L); OutputStream out = response.getOutputStream(); out.write(bytes); out.flush(); out.close(); bytes = null; return null; } } } } catch (JbpmException ex) { if (jbpmContext != null) { jbpmContext.setRollbackOnly(); } request.setAttribute("error_code", 9912); request.setAttribute("error_message", ""); return new ModelAndView("/error"); } catch (IOException ex) { if (jbpmContext != null) { jbpmContext.setRollbackOnly(); } request.setAttribute("error_code", 9912); request.setAttribute("error_message", ""); return new ModelAndView("/error"); } finally { Context.close(jbpmContext); bytes = null; } return null; } @RequestMapping(value = "/reconfig", method = RequestMethod.POST) public ModelAndView reconfig(HttpServletRequest request) { String actorId = RequestUtils.getActorId(request); String archive = request.getParameter("archive"); if (LogUtils.isDebug()) { logger.debug("deploying archive " + archive); } MultipartHttpServletRequest req = (MultipartHttpServletRequest) request; JbpmExtensionReader reader = new JbpmExtensionReader(); JbpmContext jbpmContext = null; try { jbpmContext = ProcessContainer.getContainer().createJbpmContext(); Map<String, MultipartFile> fileMap = req.getFileMap(); Set<Entry<String, MultipartFile>> entrySet = fileMap.entrySet(); for (Entry<String, MultipartFile> entry : entrySet) { MultipartFile mFile = entry.getValue(); if (mFile.getOriginalFilename() != null && mFile.getSize() > 0) { List<Extension> extensions = reader.readTasks(mFile.getInputStream()); if (extensions != null && extensions.size() > 0) { Iterator<Extension> iter = extensions.iterator(); while (iter.hasNext()) { Extension extension = iter.next(); extension.setCreateActorId(actorId); } JbpmExtensionManager jbpmExtensionManager = ProcessContainer.getContainer() .getJbpmExtensionManager(); jbpmExtensionManager.reconfig(jbpmContext, extensions); request.setAttribute("message", "???"); } } } } catch (Exception ex) { if (jbpmContext != null) { jbpmContext.setRollbackOnly(); } request.setAttribute("error_code", 9913); request.setAttribute("error_message", ""); return new ModelAndView("/error"); } finally { Context.close(jbpmContext); } String jx_view = request.getParameter("jx_view"); if (StringUtils.isNotEmpty(jx_view)) { return new ModelAndView(jx_view); } String x_view = ViewProperties.getString("jbpm_deploy.configFinish"); if (StringUtils.isNotEmpty(x_view)) { return new ModelAndView(x_view); } return new ModelAndView("/jbpm/deploy/configFinish"); } }