gerrit.onap Code Review - sdc/sdc-workflow-designer.git/blob

   1 /**\r
   2  * Copyright (c) 2017 ZTE Corporation.\r
   3  * All rights reserved. This program and the accompanying materials\r
   4  * are made available under the terms of the Eclipse Public License v1.0\r
   5  * and the Apache License 2.0 which both accompany this distribution,\r
   6  * and are available at http://www.eclipse.org/legal/epl-v10.html\r
   7  * and http://www.apache.org/licenses/LICENSE-2.0\r
   8  *\r
   9  * Contributors:\r
  10  *     ZTE - initial API and implementation and/or initial documentation\r
  11  */\r
  12 package org.onap.sdc.workflowdesigner.writer;\r
  13 \r
  14 import java.io.StringWriter;\r
  15 \r
  16 import org.apache.velocity.Template;\r
  17 import org.apache.velocity.VelocityContext;\r
  18 import org.apache.velocity.app.Velocity;\r
  19 import org.apache.velocity.app.VelocityEngine;\r
  20 import org.apache.velocity.exception.ParseErrorException;\r
  21 import org.apache.velocity.exception.ResourceNotFoundException;\r
  22 import org.onap.sdc.workflowdesigner.config.Config;\r
  23 import org.onap.sdc.workflowdesigner.model.Process;\r
  24 import org.slf4j.Logger;\r
  25 import org.slf4j.LoggerFactory;\r
  26 \r
  27 public class BpmnPlanArtefactWriter {\r
  28 \r
  29     private Process process;\r
  30 \r
  31     public static String TEMPLATE_PATH = Config.PROPERTIES.getProperty(Config.TEMPLATE_PATH);\r
  32 \r
  33     private static Logger log = LoggerFactory.getLogger(BpmnPlanArtefactWriter.class);\r
  34 \r
  35     public BpmnPlanArtefactWriter(Process process) throws Exception {\r
  36         this.process = process;\r
  37         Velocity.init();\r
  38     }\r
  39 \r
  40     public String completePlanTemplate() throws ResourceNotFoundException, ParseErrorException, Exception {\r
  41         log.debug("Completing BPMN process template...");\r
  42 \r
  43         VelocityContext context = new VelocityContext();\r
  44 \r
  45         VelocityEngine ve = new VelocityEngine();\r
  46         ve.setProperty("resource.loader", "class");\r
  47         ve.setProperty("class.resource.loader.class",\r
  48                 "org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader");\r
  49         Template planTemplate = ve.getTemplate(TEMPLATE_PATH + "bpmn_template.xml");\r
  50 \r
  51         context.put("process", process);\r
  52         context.put("templatePath", TEMPLATE_PATH);\r
  53         StringWriter planWriter = new StringWriter();\r
  54         planTemplate.merge(context, planWriter);\r
  55 \r
  56         String bpmnProcessContent = planWriter.toString();\r
  57 \r
  58         log.debug("Completed BPMN process template" + bpmnProcessContent);\r
  59 \r
  60         return bpmnProcessContent;\r
  61 \r
  62     }\r
  63 \r
  64 }\r