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.parser;\r
  13 \r
  14 import java.io.IOException;\r
  15 import java.net.MalformedURLException;\r
  16 import java.net.URI;\r
  17 import java.util.Iterator;\r
  18 \r
  19 import org.onap.sdc.workflowdesigner.model.Element;\r
  20 import org.onap.sdc.workflowdesigner.model.Process;\r
  21 import org.slf4j.Logger;\r
  22 import org.slf4j.LoggerFactory;\r
  23 \r
  24 import com.fasterxml.jackson.core.JsonParseException;\r
  25 import com.fasterxml.jackson.databind.DeserializationFeature;\r
  26 import com.fasterxml.jackson.databind.JsonMappingException;\r
  27 import com.fasterxml.jackson.databind.JsonNode;\r
  28 import com.fasterxml.jackson.databind.ObjectMapper;\r
  29 import com.fasterxml.jackson.databind.SerializationFeature;\r
  30 \r
  31 public class Bpmn4ToscaJsonParser {\r
  32 \r
  33         private static Logger log = LoggerFactory.getLogger(Bpmn4ToscaJsonParser.class);\r
  34         \r
  35         private static ObjectMapper MAPPER = new ObjectMapper();\r
  36         \r
  37         static {\r
  38                 MAPPER.enable(SerializationFeature.INDENT_OUTPUT);\r
  39                 MAPPER.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);\r
  40         }\r
  41         \r
  42         public Process parse(String processName, URI jsonFileUrl) throws JsonParseException, JsonMappingException, MalformedURLException, IOException {\r
  43                 Process process = new Process(processName);\r
  44 \r
  45                 JsonNode rootNode = MAPPER.readValue(jsonFileUrl.toURL(), JsonNode.class);\r
  46 \r
  47                 log.debug("Creating Process models...");\r
  48                 JsonNode nodes = rootNode.get("nodes");\r
  49                 if(nodes == null) {\r
  50                         return process;\r
  51                 }\r
  52                 \r
  53                 Iterator<JsonNode> iter = nodes.iterator();\r
  54                 while (iter.hasNext()) {\r
  55                         JsonNode jsonNode = (JsonNode) iter.next();\r
  56 \r
  57                         // get element\r
  58                         Element element = createElementFromJson(jsonNode);\r
  59                         process.getElementList().add(element);\r
  60                 }\r
  61 \r
  62                 return process;\r
  63 \r
  64         }\r
  65         \r
  66         protected Element createElementFromJson(JsonNode jsonNode) throws JsonParseException, JsonMappingException, IOException {\r
  67                 String jsonObject = jsonNode.toString();\r
  68                 return MAPPER.readValue(jsonObject, Element.class);\r
  69         }\r
  70         \r
  71 }\r