sdnr/wt/devicemanager/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/base/database/JsonMapperBase.java

   1 /*******************************************************************************
   2  * ============LICENSE_START========================================================================
   3  * ONAP : ccsdk feature sdnr wt
   4  * =================================================================================================
   5  * Copyright (C) 2019 highstreet technologies GmbH Intellectual Property. All rights reserved.
   6  * =================================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
   8  * in compliance with the License. You may obtain a copy of the License at
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software distributed under the License
  13  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  14  * or implied. See the License for the specific language governing permissions and limitations under
  15  * the License.
  16  * ============LICENSE_END==========================================================================
  17  ******************************************************************************/
  18 package org.onap.ccsdk.features.sdnr.wt.devicemanager.base.database;
  19
  20 import java.io.IOException;
  21 import java.io.StringWriter;
  22 import java.util.List;
  23
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
  28 import com.fasterxml.jackson.annotation.PropertyAccessor;
  29 import com.fasterxml.jackson.core.JsonGenerationException;
  30 import com.fasterxml.jackson.core.JsonGenerator.Feature;
  31 import com.fasterxml.jackson.databind.DeserializationFeature;
  32 import com.fasterxml.jackson.databind.JsonMappingException;
  33 import com.fasterxml.jackson.databind.ObjectMapper;
  34 import com.fasterxml.jackson.databind.SerializationFeature;
  35
  36 /**
  37  * This class is used to define default for JSON Serialization and Deserialization for the project at a single place
  38  */
  39 public class JsonMapperBase extends ObjectMapper {
  40
  41     private static final long serialVersionUID = 1L;
  42     private static final Logger LOG = LoggerFactory.getLogger(JsonMapperBase.class);
  43
  44     public JsonMapperBase() {
  45
  46         setVisibility(PropertyAccessor.ALL, Visibility.NONE);
  47         setVisibility(PropertyAccessor.FIELD, Visibility.ANY);
  48
  49         // Deserialization
  50         configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
  51         configure(DeserializationFeature.READ_UNKNOWN_ENUM_VALUES_AS_NULL, true);
  52
  53         // Serialization
  54         configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
  55         getFactory().configure(Feature.ESCAPE_NON_ASCII, true);
  56     }
  57
  58     public JsonMapperBase(int t) {
  59
  60         switch(t) {
  61                 case 0:
  62                         break;
  63                 case 1:
  64                         setVisibility(PropertyAccessor.ALL, Visibility.NONE);
  65                         setVisibility(PropertyAccessor.FIELD, Visibility.DEFAULT);
  66                         break;
  67                 case 2:
  68                         setVisibility(PropertyAccessor.ALL, Visibility.NONE);
  69                         setVisibility(PropertyAccessor.FIELD, Visibility.PROTECTED_AND_PUBLIC);
  70                         break;
  71                 case 3:
  72                         setVisibility(PropertyAccessor.ALL, Visibility.NONE);
  73                         setVisibility(PropertyAccessor.GETTER, Visibility.ANY);
  74                         setVisibility(PropertyAccessor.IS_GETTER, Visibility.ANY);
  75                         break;
  76                 default:
  77                         setVisibility(PropertyAccessor.ALL, Visibility.NONE);
  78                     setVisibility(PropertyAccessor.FIELD, Visibility.ANY);
  79                         break;
  80
  81         }
  82
  83         // Deserialization
  84         configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
  85         configure(DeserializationFeature.READ_UNKNOWN_ENUM_VALUES_AS_NULL, true);
  86
  87         // Serialization
  88         configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
  89         getFactory().configure(Feature.ESCAPE_NON_ASCII, true);
  90     }
  91
  92
  93
  94     public String objectToJson( Object object ) {
  95         String res = null;
  96
  97         try {
  98
  99                 res = writeValueAsString(object);
 100
 101         } catch (JsonGenerationException e) {
 102             LOG.debug(e.toString());
 103         } catch (JsonMappingException e) {
 104             LOG.debug(e.toString());
 105         } catch (IOException e) {
 106             LOG.debug(e.toString());
 107         } catch (Exception e) {
 108             LOG.debug(e.toString());
 109         }
 110
 111         return res;
 112     }
 113
 114     public String objectListToJson( List<? extends Object> objectList ) {
 115         String res = null;
 116
 117         try {
 118
 119             StringWriter stringEmp = new StringWriter();
 120             writeValue(stringEmp, objectList);
 121             res = stringEmp.toString();
 122             stringEmp.close();
 123
 124         } catch (JsonGenerationException e) {
 125             LOG.debug(e.toString());
 126         } catch (JsonMappingException e) {
 127             LOG.debug(e.toString());
 128         } catch (IOException e) {
 129             LOG.debug(e.toString());
 130         } catch (Exception e) {
 131             LOG.debug(e.toString());
 132         }
 133
 134         return res;
 135     }
 136
 137 }