winery/org.eclipse.winery.repository/src/main/java/org/eclipse/winery/repository/json/TTopologyTemplateSerializer.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012-2013 University of Stuttgart.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * and the Apache License 2.0 which both accompany this distribution,
   6  * and are available at http://www.eclipse.org/legal/epl-v10.html
   7  * and http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Contributors:
  10  *     Oliver Kopp - initial API and implementation
  11  *******************************************************************************/
  12 package org.eclipse.winery.repository.json;
  13
  14 import java.io.IOException;
  15 import java.util.ArrayList;
  16 import java.util.List;
  17
  18 import org.eclipse.winery.model.tosca.TEntityTemplate;
  19 import org.eclipse.winery.model.tosca.TNodeTemplate;
  20 import org.eclipse.winery.model.tosca.TRelationshipTemplate;
  21 import org.eclipse.winery.model.tosca.TTopologyTemplate;
  22
  23 import com.fasterxml.jackson.core.JsonGenerator;
  24 import com.fasterxml.jackson.core.JsonProcessingException;
  25 import com.fasterxml.jackson.databind.JsonSerializer;
  26 import com.fasterxml.jackson.databind.SerializerProvider;
  27
  28 public class TTopologyTemplateSerializer extends JsonSerializer<TTopologyTemplate> {
  29
  30         /**
  31          * Does NOT wrap the result into an object. Assumes that the current
  32          * position at jgen is in an object
  33          *
  34          * @param value the list of entity templates to serialize
  35          */
  36         public void serialize(List<TEntityTemplate> value, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException {
  37                 List<TRelationshipTemplate> relationshipTemplates = new ArrayList<TRelationshipTemplate>();
  38
  39                 jgen.writeFieldName("nodeTemplates");
  40                 jgen.writeStartObject();
  41                 for (TEntityTemplate template : value) {
  42                         if (template instanceof TNodeTemplate) {
  43                                 // write out as <id> : <default serialization>
  44                                 jgen.writeFieldName(template.getId());
  45                                 provider.defaultSerializeValue(template, jgen);
  46
  47                         } else {
  48                                 assert (template instanceof TRelationshipTemplate);
  49                                 relationshipTemplates.add((TRelationshipTemplate) template);
  50                         }
  51                 }
  52                 jgen.writeEndObject();
  53
  54                 jgen.writeFieldName("relationshipTemplates");
  55                 jgen.writeStartObject();
  56                 for (TRelationshipTemplate template : relationshipTemplates) {
  57                         // write out as <id> : <default serialization>
  58                         jgen.writeFieldName(template.getId());
  59                         provider.defaultSerializeValue(template, jgen);
  60                 }
  61                 jgen.writeEndObject();
  62         }
  63
  64         @Override
  65         public void serialize(TTopologyTemplate topologyTemplate, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException {
  66                 jgen.writeStartObject();
  67
  68                 // write out the other fields unmodified
  69                 jgen.writeFieldName("documentation");
  70                 provider.defaultSerializeValue(topologyTemplate.getDocumentation(), jgen);
  71                 jgen.writeFieldName("any");
  72                 provider.defaultSerializeValue(topologyTemplate.getAny(), jgen);
  73                 jgen.writeFieldName("otherAttributes");
  74                 provider.defaultSerializeValue(topologyTemplate.getOtherAttributes(), jgen);
  75
  76                 // finally, write the topology template
  77                 this.serialize(topologyTemplate.getNodeTemplateOrRelationshipTemplate(), jgen, provider);
  78
  79                 jgen.writeEndObject();
  80         }
  81 }