aai-core/src/main/java/org/openecomp/aai/serialization/queryformats/SimpleFormat.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * org.openecomp.aai
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.openecomp.aai.serialization.queryformats;
  22
  23 import java.util.Arrays;
  24 import java.util.Collection;
  25 import java.util.HashSet;
  26 import java.util.Iterator;
  27 import java.util.List;
  28 import java.util.Set;
  29
  30 import org.apache.tinkerpop.gremlin.structure.Direction;
  31 import org.apache.tinkerpop.gremlin.structure.Vertex;
  32 import org.apache.tinkerpop.gremlin.structure.VertexProperty;
  33
  34 import org.openecomp.aai.db.props.AAIProperties;
  35 import org.openecomp.aai.serialization.queryformats.exceptions.AAIFormatVertexException;
  36 import org.openecomp.aai.serialization.queryformats.utils.UrlBuilder;
  37 import com.google.gson.Gson;
  38 import com.google.gson.JsonArray;
  39 import com.google.gson.JsonObject;
  40
  41 public class SimpleFormat implements FormatMapper {
  42
  43         private final UrlBuilder urlBuilder;
  44         private final Set<String> blacklist;
  45         private final Collection<String> props = Arrays.asList(AAIProperties.AAI_URI, AAIProperties.NODE_TYPE);
  46         public SimpleFormat(UrlBuilder urlBuilder) {
  47                 this.urlBuilder = urlBuilder;
  48                 this.blacklist = new HashSet<>();
  49                 blacklist.addAll(props);
  50         }
  51
  52         @Override
  53         public JsonObject formatObject(Object input) throws AAIFormatVertexException {
  54                 Vertex v = (Vertex)input;
  55                 JsonObject json = new JsonObject();
  56                 json.addProperty("id", v.id().toString());
  57                 json.addProperty("node-type", v.<String>value(AAIProperties.NODE_TYPE));
  58                 json.addProperty("url", this.urlBuilder.pathed(v));
  59                 json.add("properties", this.createPropertiesObject(v));
  60                 json.add("related-to", this.createRelationshipObject(v));
  61
  62                 return json;
  63         }
  64
  65         @Override
  66         public int parallelThreshold() {
  67                 return 100;
  68         }
  69
  70         private JsonObject createPropertiesObject(Vertex v) {
  71                 JsonObject json = new JsonObject();
  72                 Iterator<VertexProperty<Object>> iter = v.properties();
  73
  74                 while (iter.hasNext()) {
  75                         VertexProperty<Object> prop = iter.next();
  76                         if (!blacklist.contains(prop.key())) {
  77                                 if (prop.value() instanceof String) {
  78                                         json.addProperty(prop.key(), (String)prop.value());
  79                                 } else if (prop.value() instanceof Boolean) {
  80                                         json.addProperty(prop.key(), (Boolean)prop.value());
  81                                 } else if (prop.value() instanceof Number) {
  82                                         json.addProperty(prop.key(), (Number)prop.value());
  83                                 } else if (prop.value() instanceof List) {
  84                                         Gson gson = new Gson();
  85                                         String list = gson.toJson(prop.value());
  86
  87                                         json.addProperty(prop.key(), list);
  88                                 } else {
  89                                         //throw exception?
  90                                         return null;
  91                                 }
  92                         }
  93                 }
  94
  95                 return json;
  96         }
  97
  98         private JsonArray createRelationshipObject(Vertex v) throws AAIFormatVertexException {
  99                 JsonArray jarray = new JsonArray();
 100                 Iterator<Vertex> iter = v.vertices(Direction.BOTH);
 101
 102                 while (iter.hasNext()) {
 103                         Vertex related = iter.next();
 104
 105                         JsonObject json = new JsonObject();
 106                         json.addProperty("id", related.id().toString());
 107                         json.addProperty("node-type", related.<String>value(AAIProperties.NODE_TYPE));
 108                         json.addProperty("url", this.urlBuilder.pathed(related));
 109                         jarray.add(json);
 110                 }
 111
 112                 return jarray;
 113         }
 114 }