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