aai-core/src/main/java/org/onap/aai/serialization/queryformats/RawFormat.java

   1 /**
   2  * ============LICENSE_START=======================================================
   3  * org.onap.aai
   4  * ================================================================================
   5  * Copyright © 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  * ECOMP is a trademark and service mark of AT&T Intellectual Property.
  21  */
  22 package org.onap.aai.serialization.queryformats;
  23
  24 import java.util.Iterator;
  25 import java.util.List;
  26
  27 import org.apache.tinkerpop.gremlin.structure.Direction;
  28 import org.apache.tinkerpop.gremlin.structure.Vertex;
  29 import org.apache.tinkerpop.gremlin.structure.VertexProperty;
  30 import org.onap.aai.db.props.AAIProperties;
  31 import org.onap.aai.introspection.Loader;
  32 import org.onap.aai.serialization.db.DBSerializer;
  33 import org.onap.aai.serialization.queryformats.exceptions.AAIFormatVertexException;
  34 import org.onap.aai.serialization.queryformats.params.Depth;
  35 import org.onap.aai.serialization.queryformats.params.NodesOnly;
  36 import org.onap.aai.serialization.queryformats.utils.UrlBuilder;
  37
  38 import com.google.gson.Gson;
  39 import com.google.gson.JsonArray;
  40 import com.google.gson.JsonObject;
  41 import com.google.gson.JsonParser;
  42
  43
  44 public class RawFormat implements FormatMapper {
  45         protected JsonParser parser = new JsonParser();
  46         protected final DBSerializer serializer;
  47         protected final Loader loader;
  48         protected final UrlBuilder urlBuilder;
  49         protected final int depth;
  50         protected final boolean nodesOnly;
  51         protected RawFormat(Builder builder) {
  52                 this.urlBuilder = builder.getUrlBuilder();
  53                 this.loader = builder.getLoader();
  54                 this.serializer = builder.getSerializer();
  55                 this.depth = builder.getDepth();
  56                 this.nodesOnly = builder.isNodesOnly();
  57         }
  58
  59         @Override
  60         public JsonObject formatObject(Object input) throws AAIFormatVertexException {
  61                 Vertex v = (Vertex)input;
  62                 JsonObject json = new JsonObject();
  63                 json.addProperty("id", v.id().toString());
  64                 json.addProperty("node-type", v.<String>value(AAIProperties.NODE_TYPE));
  65                 json.addProperty("url", this.urlBuilder.pathed(v));
  66                 json.add("properties", this.createPropertiesObject(v));
  67                 if (!nodesOnly) {
  68                         json.add("related-to", this.createRelationshipObject(v));
  69                 }
  70                 return json;
  71         }
  72
  73         @Override
  74         public int parallelThreshold() {
  75                 return 100;
  76         }
  77
  78
  79         public JsonObject createPropertiesObject(Vertex v) throws AAIFormatVertexException {
  80                 JsonObject json = new JsonObject();
  81                 Iterator<VertexProperty<Object>> iter = v.properties();
  82
  83                 while (iter.hasNext()) {
  84                         VertexProperty<Object> prop = iter.next();
  85                         if (prop.value() instanceof String) {
  86                                 json.addProperty(prop.key(), (String)prop.value());
  87                         } else if (prop.value() instanceof Boolean) {
  88                                 json.addProperty(prop.key(), (Boolean)prop.value());
  89                         } else if (prop.value() instanceof Number) {
  90                                 json.addProperty(prop.key(), (Number)prop.value());
  91                         } else if (prop.value() instanceof List) {
  92                                 Gson gson = new Gson();
  93                                 String list = gson.toJson(prop.value());
  94
  95                                 json.addProperty(prop.key(), list);
  96                         } else {
  97                                 //throw exception?
  98                                 return null;
  99                         }
 100                 }
 101
 102                 return json;
 103         }
 104         protected JsonArray createRelationshipObject(Vertex v) throws AAIFormatVertexException {
 105                 JsonArray jarray = new JsonArray();
 106                 Iterator<Vertex> iter = v.vertices(Direction.BOTH);
 107
 108                 while (iter.hasNext()) {
 109                         Vertex related = iter.next();
 110
 111                         JsonObject json = new JsonObject();
 112                         json.addProperty("id", related.id().toString());
 113                         json.addProperty("node-type", related.<String>value(AAIProperties.NODE_TYPE));
 114                         json.addProperty("url", this.urlBuilder.pathed(related));
 115                         jarray.add(json);
 116                 }
 117
 118                 return jarray;
 119         }
 120
 121         public static class Builder implements NodesOnly<Builder>, Depth<Builder> {
 122
 123                 protected final Loader loader;
 124                 protected final DBSerializer serializer;
 125                 protected final UrlBuilder urlBuilder;
 126                 protected boolean includeUrl = false;
 127                 protected boolean nodesOnly = false;
 128                 protected int depth = 1;
 129                 protected boolean modelDriven = false;
 130                 public Builder(Loader loader, DBSerializer serializer, UrlBuilder urlBuilder) {
 131                         this.loader = loader;
 132                         this.serializer = serializer;
 133                         this.urlBuilder = urlBuilder;
 134                 }
 135
 136                 protected Loader getLoader() {
 137                         return this.loader;
 138                 }
 139
 140                 protected DBSerializer getSerializer() {
 141                         return this.serializer;
 142                 }
 143
 144                 protected UrlBuilder getUrlBuilder() {
 145                         return this.urlBuilder;
 146                 }
 147
 148                 public Builder includeUrl() {
 149                         this.includeUrl = true;
 150                         return this;
 151                 }
 152
 153                 public Builder nodesOnly(Boolean nodesOnly) {
 154                         this.nodesOnly = nodesOnly;
 155                         return this;
 156                 }
 157                 public boolean isNodesOnly() {
 158                         return this.nodesOnly;
 159                 }
 160
 161                 public Builder depth(Integer depth) {
 162                         this.depth = depth;
 163                         return this;
 164                 }
 165
 166                 public int getDepth() {
 167                         return this.depth;
 168                 }
 169
 170                 public boolean isIncludeUrl() {
 171                         return this.includeUrl;
 172                 }
 173
 174                 public Builder modelDriven() {
 175                         this.modelDriven = true;
 176                         return this;
 177                 }
 178
 179                 public boolean getModelDriven() {
 180                         return this.modelDriven;
 181                 }
 182                 public RawFormat build() {
 183                         if (modelDriven) {
 184                                 return new SimpleFormat(this);
 185                         } else {
 186                                 return new RawFormat(this);
 187                         }
 188                 }
 189         }
 190 }