bpmn/MSOCoreBPMN/src/main/java/org/openecomp/mso/bpmn/core/decomposition/JsonWrapper.java

   1 package org.openecomp.mso.bpmn.core.decomposition;\r
   2 \r
   3 import java.io.IOException;\r
   4 import java.util.List;\r
   5 \r
   6 import org.codehaus.jackson.JsonGenerationException;\r
   7 import org.codehaus.jackson.JsonParseException;\r
   8 import org.codehaus.jackson.map.JsonMappingException;\r
   9 import org.codehaus.jackson.map.ObjectMapper;\r
  10 import org.codehaus.jackson.map.ObjectWriter;\r
  11 import org.json.JSONException;\r
  12 import org.json.JSONObject;\r
  13 \r
  14 import com.fasterxml.jackson.annotation.JsonInclude;\r
  15 import com.fasterxml.jackson.annotation.JsonInclude.Include;\r
  16 import com.fasterxml.jackson.databind.DeserializationFeature;\r
  17 \r
  18 \r
  19 //import org.codehaus.jackson.map.SerializationConfig.Feature;\r
  20 import org.codehaus.jackson.map.DeserializationConfig.Feature;\r
  21 import org.codehaus.jackson.map.annotate.JsonSerialize;\r
  22 \r
  23 /**\r
  24  * Wrapper encapsulates needed JSON functionality \r
  25  * to be extended by MSO service decomposition objects\r
  26  * providing ways to convert to and from JSON\r
  27  * \r
  28  * @author \r
  29  *\r
  30  */\r
  31 @JsonInclude(Include.NON_NULL)\r
  32 public abstract class JsonWrapper {\r
  33 \r
  34         @JsonInclude(Include.NON_NULL)\r
  35         public String toJsonString(){\r
  36                 \r
  37                 \r
  38 \r
  39                 String jsonString = "";\r
  40                 //convert with Jackson\r
  41                 ObjectMapper mapper = new ObjectMapper();\r
  42                 mapper.enable(org.codehaus.jackson.map.SerializationConfig.Feature.WRAP_ROOT_VALUE);\r
  43                 \r
  44                 mapper.setSerializationInclusion(JsonSerialize.Inclusion.NON_NULL);\r
  45                 \r
  46                 ObjectWriter ow = mapper.writer().withDefaultPrettyPrinter();\r
  47                 try {\r
  48                         jsonString = ow.writeValueAsString(this);\r
  49                 } catch (JsonGenerationException e) {\r
  50                         // TODO Auto-generated catch block\r
  51                         e.printStackTrace();\r
  52                 } catch (JsonMappingException e) {\r
  53                         // TODO Auto-generated catch block\r
  54                         e.printStackTrace();\r
  55                 } catch (IOException e) {\r
  56                         // TODO Auto-generated catch block\r
  57                         e.printStackTrace();\r
  58                 }\r
  59                 return jsonString;\r
  60         }\r
  61         \r
  62         @JsonInclude(Include.NON_NULL)\r
  63         public JSONObject toJsonObject(){\r
  64 \r
  65         ObjectMapper mapper = new ObjectMapper();\r
  66        // mapper.configure(SerializationConfig.Feature.WRAP_ROOT_VALUE, true);\r
  67         //mapper.enable(SerializationFeature.WRAP_ROOT_VALUE);\r
  68 \r
  69         mapper.enable(org.codehaus.jackson.map.SerializationConfig.Feature.WRAP_ROOT_VALUE);\r
  70        // mapper.enable(org.codehaus.jackson.map.DeserializationConfig.Feature.UNWRAP_ROOT_VALUE);\r
  71         JSONObject json = new JSONObject();\r
  72          try {\r
  73                         json = new JSONObject(mapper.writeValueAsString(this));\r
  74                 } catch (JsonGenerationException e) {\r
  75                         // TODO Auto-generated catch block\r
  76                         e.printStackTrace();\r
  77                 } catch (JsonMappingException e) {\r
  78                         // TODO Auto-generated catch block\r
  79                         e.printStackTrace();\r
  80                 } catch (JSONException e) {\r
  81                         // TODO Auto-generated catch block\r
  82                         e.printStackTrace();\r
  83                 } catch (IOException e) {\r
  84                         // TODO Auto-generated catch block\r
  85                         e.printStackTrace();\r
  86                 }\r
  87          return json; \r
  88         }\r
  89         \r
  90         public String listToJson(List list) {\r
  91         ObjectMapper mapper = new ObjectMapper();\r
  92         mapper.enable(org.codehaus.jackson.map.SerializationConfig.Feature.WRAP_ROOT_VALUE);\r
  93         \r
  94                 String jsonString = "";\r
  95                 try {\r
  96                         jsonString = mapper.writeValueAsString(list);\r
  97                 } catch (JsonGenerationException e) {\r
  98                         // TODO Auto-generated catch block\r
  99                         e.printStackTrace();\r
 100                 } catch (JsonMappingException e) {\r
 101                         // TODO Auto-generated catch block\r
 102                         e.printStackTrace();\r
 103                 } catch (IOException e) {\r
 104                         // TODO Auto-generated catch block\r
 105                         e.printStackTrace();\r
 106                 }\r
 107                 \r
 108                 return jsonString;\r
 109         }\r
 110         \r
 111         /**\r
 112          * Method to construct Service Decomposition object converting\r
 113          * JSON structure\r
 114          * \r
 115          * @param jsonString - input in JSON format confirming ServiceDecomposition\r
 116          * @return - ServiceDecomposition object\r
 117          */\r
 118         public ServiceDecomposition JsonToServiceDecomposition(String jsonString) {\r
 119         \r
 120         ServiceDecomposition serviceDecomposition = new ServiceDecomposition();\r
 121         ObjectMapper om = new ObjectMapper();\r
 122         om.configure(Feature.UNWRAP_ROOT_VALUE, true);\r
 123        \r
 124                 try {\r
 125                         serviceDecomposition = om.readValue(jsonString, ServiceDecomposition.class);\r
 126                 } catch (JsonParseException e) {\r
 127                         // TODO Auto-generated catch block\r
 128                         e.printStackTrace();\r
 129                 } catch (JsonMappingException e) {\r
 130                         // TODO Auto-generated catch block\r
 131                         e.printStackTrace();\r
 132                 } catch (IOException e) {\r
 133                         // TODO Auto-generated catch block\r
 134                         e.printStackTrace();\r
 135                 }\r
 136                 \r
 137                 return serviceDecomposition;\r
 138         }\r
 139         \r
 140 }\r