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