src/main/java/org/onap/crud/service/CrudGraphDataService.java

   1 /**
   2  * ============LICENSE_START=======================================================
   3  * Gizmo
   4  * ================================================================================
   5  * Copyright © 2017 AT&T Intellectual Property.
   6  * Copyright © 2017 Amdocs
   7  * All rights reserved.
   8  * ================================================================================
   9  * Licensed under the Apache License, Version 2.0 (the "License");
  10  * you may not use this file except in compliance with the License.
  11  * You may obtain a copy of the License at
  12  *
  13  *    http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  * Unless required by applicable law or agreed to in writing, software
  16  * distributed under the License is distributed on an "AS IS" BASIS,
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  * See the License for the specific language governing permissions and
  19  * limitations under the License.
  20  * ============LICENSE_END=========================================================
  21  *
  22  * ECOMP is a trademark and service mark of AT&T Intellectual Property.
  23  */
  24 package org.onap.crud.service;
  25
  26 import java.util.ArrayList;
  27 import java.util.HashMap;
  28 import java.util.List;
  29 import java.util.Map;
  30
  31 import javax.ws.rs.core.HttpHeaders;
  32 import javax.ws.rs.core.Response.Status;
  33
  34 import org.onap.crud.dao.GraphDao;
  35 import org.onap.crud.entity.Edge;
  36
  37 import org.onap.crud.entity.Vertex;
  38 import org.onap.crud.exception.CrudException;
  39 import org.onap.crud.parser.CrudResponseBuilder;
  40 import org.onap.crud.util.CrudServiceUtil;
  41 import org.onap.schema.OxmModelValidator;
  42 import org.onap.schema.RelationshipSchemaValidator;
  43
  44 import com.google.gson.JsonElement;
  45
  46 public class CrudGraphDataService extends AbstractGraphDataService {
  47
  48   public CrudGraphDataService(GraphDao dao) throws CrudException {
  49     super(dao);
  50   }
  51
  52   public String addVertex(String version, String type, VertexPayload payload) throws CrudException {
  53     Vertex vertex = OxmModelValidator.validateIncomingUpsertPayload(null, version, type, payload.getProperties());
  54     return addVertex(version, vertex);
  55   }
  56
  57   public String addBulk(String version, BulkPayload payload, HttpHeaders headers) throws CrudException {
  58     HashMap<String, Vertex> vertices = new HashMap<String, Vertex>();
  59     HashMap<String, Edge> edges = new HashMap<String, Edge>();
  60     String txId = dao.openTransaction();
  61     try {
  62       // Handle vertices
  63       for (JsonElement v : payload.getObjects()) {
  64         List<Map.Entry<String, JsonElement>> entries = new ArrayList<Map.Entry<String, JsonElement>>(
  65             v.getAsJsonObject().entrySet());
  66
  67         if (entries.size() != 2) {
  68           throw new CrudException("", Status.BAD_REQUEST);
  69         }
  70         Map.Entry<String, JsonElement> opr = entries.get(0);
  71         Map.Entry<String, JsonElement> item = entries.get(1);
  72
  73         VertexPayload vertexPayload = VertexPayload.fromJson(item.getValue().getAsJsonObject().toString());
  74
  75         if (opr.getValue().getAsString().equalsIgnoreCase("add")
  76             || opr.getValue().getAsString().equalsIgnoreCase("modify")) {
  77           Vertex validatedVertex;
  78           Vertex persistedVertex;
  79           if (opr.getValue().getAsString().equalsIgnoreCase("add")) {
  80                   vertexPayload.setProperties(CrudServiceUtil.mergeHeaderInFoToPayload(vertexPayload.getProperties(),
  81                                   headers, true));
  82
  83                   validatedVertex = OxmModelValidator.validateIncomingUpsertPayload(null, version, vertexPayload.getType(),
  84                 vertexPayload.getProperties());
  85
  86             // Call champDAO to add the vertex
  87             persistedVertex = dao.addVertex(validatedVertex.getType(), validatedVertex.getProperties(), txId);
  88           } else {
  89                 vertexPayload.setProperties(CrudServiceUtil.mergeHeaderInFoToPayload(vertexPayload.getProperties(),
  90                                   headers, false));
  91             validatedVertex = OxmModelValidator.validateIncomingUpsertPayload(vertexPayload.getId(), version,
  92                 vertexPayload.getType(), vertexPayload.getProperties());
  93             // Call champDAO to update the vertex
  94             persistedVertex = dao.updateVertex(vertexPayload.getId(), validatedVertex.getType(),
  95                 validatedVertex.getProperties(), txId);
  96           }
  97
  98           Vertex outgoingVertex = OxmModelValidator.validateOutgoingPayload(version, persistedVertex);
  99
 100           vertices.put(item.getKey(), outgoingVertex);
 101
 102         } else if (opr.getValue().getAsString().equalsIgnoreCase("delete")) {
 103           dao.deleteVertex(vertexPayload.getId(),
 104               OxmModelValidator.resolveCollectionType(version, vertexPayload.getType()), txId);
 105         }
 106
 107       }
 108       // Handle Edges
 109       for (JsonElement v : payload.getRelationships()) {
 110         List<Map.Entry<String, JsonElement>> entries = new ArrayList<Map.Entry<String, JsonElement>>(
 111             v.getAsJsonObject().entrySet());
 112
 113         if (entries.size() != 2) {
 114           throw new CrudException("", Status.BAD_REQUEST);
 115         }
 116         Map.Entry<String, JsonElement> opr = entries.get(0);
 117         Map.Entry<String, JsonElement> item = entries.get(1);
 118
 119         EdgePayload edgePayload = EdgePayload.fromJson(item.getValue().getAsJsonObject().toString());
 120
 121         if (opr.getValue().getAsString().equalsIgnoreCase("add")
 122             || opr.getValue().getAsString().equalsIgnoreCase("modify")) {
 123           Edge validatedEdge;
 124           Edge persistedEdge;
 125           if (opr.getValue().getAsString().equalsIgnoreCase("add")) {
 126             // Fix the source/detination
 127             if (edgePayload.getSource().startsWith("$")) {
 128               Vertex source = vertices.get(edgePayload.getSource().substring(1));
 129               if (source == null) {
 130                 throw new CrudException("Not able to find vertex: " + edgePayload.getSource().substring(1),
 131                     Status.INTERNAL_SERVER_ERROR);
 132               }
 133               edgePayload
 134                   .setSource("services/inventory/" + version + "/" + source.getType() + "/" + source.getId().get());
 135             }
 136             if (edgePayload.getTarget().startsWith("$")) {
 137               Vertex target = vertices.get(edgePayload.getTarget().substring(1));
 138               if (target == null) {
 139                 throw new CrudException("Not able to find vertex: " + edgePayload.getTarget().substring(1),
 140                     Status.INTERNAL_SERVER_ERROR);
 141               }
 142               edgePayload
 143                   .setTarget("services/inventory/" + version + "/" + target.getType() + "/" + target.getId().get());
 144             }
 145             validatedEdge = RelationshipSchemaValidator.validateIncomingAddPayload(version, edgePayload.getType(),
 146                 edgePayload);
 147             persistedEdge = dao.addEdge(validatedEdge.getType(), validatedEdge.getSource(), validatedEdge.getTarget(),
 148                 validatedEdge.getProperties(), txId);
 149           } else {
 150             Edge edge = dao.getEdge(edgePayload.getId(), edgePayload.getType(), txId);
 151             validatedEdge = RelationshipSchemaValidator.validateIncomingUpdatePayload(edge, version, edgePayload);
 152             persistedEdge = dao.updateEdge(edge, txId);
 153           }
 154
 155           Edge outgoingEdge = RelationshipSchemaValidator.validateOutgoingPayload(version, persistedEdge);
 156
 157           edges.put(item.getKey(), outgoingEdge);
 158
 159         } else if (opr.getValue().getAsString().equalsIgnoreCase("delete")) {
 160           RelationshipSchemaValidator.validateType(version, edgePayload.getType());
 161           dao.deleteEdge(edgePayload.getId(), edgePayload.getType(), txId);
 162         }
 163
 164       }
 165       // close champ TX
 166       dao.commitTransaction(txId);
 167     } catch (CrudException ex) {
 168       dao.rollbackTransaction(txId);
 169       throw ex;
 170     } catch (Exception ex) {
 171       dao.rollbackTransaction(txId);
 172       throw ex;
 173     } finally {
 174       if (dao.transactionExists(txId)) {
 175         dao.rollbackTransaction(txId);
 176       }
 177     }
 178
 179     return CrudResponseBuilder.buildUpsertBulkResponse(vertices, edges, version, payload);
 180   }
 181
 182   private String addVertex(String version, Vertex vertex) throws CrudException {
 183     Vertex addedVertex = dao.addVertex(vertex.getType(), vertex.getProperties());
 184     return CrudResponseBuilder
 185         .buildUpsertVertexResponse(OxmModelValidator.validateOutgoingPayload(version, addedVertex), version);
 186   }
 187
 188   public String addEdge(String version, String type, EdgePayload payload) throws CrudException {
 189     Edge edge = RelationshipSchemaValidator.validateIncomingAddPayload(version, type, payload);
 190     return addEdge(version, edge);
 191   }
 192
 193   private String addEdge(String version, Edge edge) throws CrudException {
 194     Edge addedEdge = dao.addEdge(edge.getType(), edge.getSource(), edge.getTarget(), edge.getProperties());
 195     return CrudResponseBuilder
 196         .buildUpsertEdgeResponse(RelationshipSchemaValidator.validateOutgoingPayload(version, addedEdge), version);
 197   }
 198
 199   public String updateVertex(String version, String id, String type, VertexPayload payload) throws CrudException {
 200     Vertex vertex = OxmModelValidator.validateIncomingUpsertPayload(id, version, type, payload.getProperties());
 201     return updateVertex(version, vertex);
 202
 203   }
 204
 205   private String updateVertex(String version, Vertex vertex) throws CrudException {
 206     Vertex updatedVertex = dao.updateVertex(vertex.getId().get(), vertex.getType(), vertex.getProperties());
 207     return CrudResponseBuilder
 208         .buildUpsertVertexResponse(OxmModelValidator.validateOutgoingPayload(version, updatedVertex), version);
 209   }
 210
 211   public String patchVertex(String version, String id, String type, VertexPayload payload) throws CrudException {
 212     Vertex existingVertex = dao.getVertex(id, OxmModelValidator.resolveCollectionType(version, type));
 213     Vertex vertex = OxmModelValidator.validateIncomingPatchPayload(id, version, type, payload.getProperties(),
 214         existingVertex);
 215     return updateVertex(version, vertex);
 216
 217   }
 218
 219   public String deleteVertex(String version, String id, String type) throws CrudException {
 220     type = OxmModelValidator.resolveCollectionType(version, type);
 221     dao.deleteVertex(id, type);
 222     return "";
 223
 224   }
 225
 226   public String deleteEdge(String version, String id, String type) throws CrudException {
 227     RelationshipSchemaValidator.validateType(version, type);
 228     dao.deleteEdge(id, type);
 229     return "";
 230
 231   }
 232
 233   public String updateEdge(String version, String id, String type, EdgePayload payload) throws CrudException {
 234     Edge edge = dao.getEdge(id, type);
 235     Edge validatedEdge = RelationshipSchemaValidator.validateIncomingUpdatePayload(edge, version, payload);
 236     return updateEdge(version, validatedEdge);
 237
 238   }
 239
 240   private String updateEdge(String version, Edge edge) throws CrudException {
 241     Edge updatedEdge = dao.updateEdge(edge);
 242     return CrudResponseBuilder
 243         .buildUpsertEdgeResponse(RelationshipSchemaValidator.validateOutgoingPayload(version, updatedEdge), version);
 244   }
 245
 246   public String patchEdge(String version, String id, String type, EdgePayload payload) throws CrudException {
 247     Edge edge = dao.getEdge(id, type);
 248     Edge patchedEdge = RelationshipSchemaValidator.validateIncomingPatchPayload(edge, version, payload);
 249     return updateEdge(version, patchedEdge);
 250
 251   }
 252
 253   public Vertex getVertex(String id) throws CrudException {
 254     return dao.getVertex(id);
 255   }
 256
 257 }