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.Response.Status;
  32
  33 import org.onap.crud.dao.GraphDao;
  34 import org.onap.crud.entity.Edge;
  35
  36 import org.onap.crud.entity.Vertex;
  37 import org.onap.crud.exception.CrudException;
  38 import org.onap.crud.parser.CrudResponseBuilder;
  39 import org.onap.crud.util.CrudServiceUtil;
  40 import org.onap.schema.OxmModelValidator;
  41 import org.onap.schema.RelationshipSchemaValidator;
  42
  43 import com.google.gson.JsonElement;
  44
  45 public class CrudGraphDataService {
  46
  47   private GraphDao dao;
  48
  49   public CrudGraphDataService(GraphDao dao) throws CrudException {
  50     this.dao = dao;
  51
  52     CrudServiceUtil.loadModels();
  53   }
  54
  55
  56
  57   public String addVertex(String version, String type, VertexPayload payload) throws CrudException {
  58     Vertex vertex = OxmModelValidator.validateIncomingUpsertPayload(null, version, type, payload.getProperties());
  59     return addVertex(version, vertex);
  60   }
  61
  62   public String addBulk(String version, BulkPayload payload) throws CrudException {
  63     HashMap<String, Vertex> vertices = new HashMap<String, Vertex>();
  64     HashMap<String, Edge> edges = new HashMap<String, Edge>();
  65     String txId = dao.openTransaction();
  66     try {
  67       // Handle vertices
  68       for (JsonElement v : payload.getObjects()) {
  69         List<Map.Entry<String, JsonElement>> entries = new ArrayList<Map.Entry<String, JsonElement>>(
  70             v.getAsJsonObject().entrySet());
  71
  72         if (entries.size() != 2) {
  73           throw new CrudException("", Status.BAD_REQUEST);
  74         }
  75         Map.Entry<String, JsonElement> opr = entries.get(0);
  76         Map.Entry<String, JsonElement> item = entries.get(1);
  77
  78         VertexPayload vertexPayload = VertexPayload.fromJson(item.getValue().getAsJsonObject().toString());
  79
  80         if (opr.getValue().getAsString().equalsIgnoreCase("add")
  81             || opr.getValue().getAsString().equalsIgnoreCase("modify")) {
  82           Vertex validatedVertex;
  83           Vertex persistedVertex;
  84           if (opr.getValue().getAsString().equalsIgnoreCase("add")) {
  85             validatedVertex = OxmModelValidator.validateIncomingUpsertPayload(null, version, vertexPayload.getType(),
  86                 vertexPayload.getProperties());
  87             // Call champDAO to add the vertex
  88             persistedVertex = dao.addVertex(validatedVertex.getType(), validatedVertex.getProperties(), txId);
  89           } else {
  90             validatedVertex = OxmModelValidator.validateIncomingUpsertPayload(vertexPayload.getId(), version,
  91                 vertexPayload.getType(), vertexPayload.getProperties());
  92             // Call champDAO to update the vertex
  93             persistedVertex = dao.updateVertex(vertexPayload.getId(), validatedVertex.getType(),
  94                 validatedVertex.getProperties(), txId);
  95           }
  96
  97           Vertex outgoingVertex = OxmModelValidator.validateOutgoingPayload(version, persistedVertex);
  98
  99           vertices.put(item.getKey(), outgoingVertex);
 100
 101         } else if (opr.getValue().getAsString().equalsIgnoreCase("delete")) {
 102           dao.deleteVertex(vertexPayload.getId(),
 103               OxmModelValidator.resolveCollectionType(version, vertexPayload.getType()), txId);
 104         }
 105
 106       }
 107       // Handle Edges
 108       for (JsonElement v : payload.getRelationships()) {
 109         List<Map.Entry<String, JsonElement>> entries = new ArrayList<Map.Entry<String, JsonElement>>(
 110             v.getAsJsonObject().entrySet());
 111
 112         if (entries.size() != 2) {
 113           throw new CrudException("", Status.BAD_REQUEST);
 114         }
 115         Map.Entry<String, JsonElement> opr = entries.get(0);
 116         Map.Entry<String, JsonElement> item = entries.get(1);
 117
 118         EdgePayload edgePayload = EdgePayload.fromJson(item.getValue().getAsJsonObject().toString());
 119
 120         if (opr.getValue().getAsString().equalsIgnoreCase("add")
 121             || opr.getValue().getAsString().equalsIgnoreCase("modify")) {
 122           Edge validatedEdge;
 123           Edge persistedEdge;
 124           if (opr.getValue().getAsString().equalsIgnoreCase("add")) {
 125             // Fix the source/detination
 126             if (edgePayload.getSource().startsWith("$")) {
 127               Vertex source = vertices.get(edgePayload.getSource().substring(1));
 128               if (source == null) {
 129                 throw new CrudException("Not able to find vertex: " + edgePayload.getSource().substring(1),
 130                     Status.INTERNAL_SERVER_ERROR);
 131               }
 132               edgePayload
 133                   .setSource("services/inventory/" + version + "/" + source.getType() + "/" + source.getId().get());
 134             }
 135             if (edgePayload.getTarget().startsWith("$")) {
 136               Vertex target = vertices.get(edgePayload.getTarget().substring(1));
 137               if (target == null) {
 138                 throw new CrudException("Not able to find vertex: " + edgePayload.getTarget().substring(1),
 139                     Status.INTERNAL_SERVER_ERROR);
 140               }
 141               edgePayload
 142                   .setTarget("services/inventory/" + version + "/" + target.getType() + "/" + target.getId().get());
 143             }
 144             validatedEdge = RelationshipSchemaValidator.validateIncomingAddPayload(version, edgePayload.getType(),
 145                 edgePayload);
 146             persistedEdge = dao.addEdge(validatedEdge.getType(), validatedEdge.getSource(), validatedEdge.getTarget(),
 147                 validatedEdge.getProperties(), txId);
 148           } else {
 149             Edge edge = dao.getEdge(edgePayload.getId(), edgePayload.getType(), txId);
 150             validatedEdge = RelationshipSchemaValidator.validateIncomingUpdatePayload(edge, version, edgePayload);
 151             persistedEdge = dao.updateEdge(edge, txId);
 152           }
 153
 154           Edge outgoingEdge = RelationshipSchemaValidator.validateOutgoingPayload(version, persistedEdge);
 155
 156           edges.put(item.getKey(), outgoingEdge);
 157
 158         } else if (opr.getValue().getAsString().equalsIgnoreCase("delete")) {
 159           RelationshipSchemaValidator.validateType(version, edgePayload.getType());
 160           dao.deleteEdge(edgePayload.getId(), edgePayload.getType(), txId);
 161         }
 162
 163       }
 164       // close champ TX
 165       dao.commitTransaction(txId);
 166     } catch (CrudException ex) {
 167       dao.rollbackTransaction(txId);
 168       throw ex;
 169     } catch (Exception ex) {
 170       dao.rollbackTransaction(txId);
 171       throw ex;
 172     } finally {
 173       if (dao.transactionExists(txId)) {
 174         dao.rollbackTransaction(txId);
 175       }
 176     }
 177
 178     return CrudResponseBuilder.buildUpsertBulkResponse(vertices, edges, version, payload);
 179   }
 180
 181   private String addVertex(String version, Vertex vertex) throws CrudException {
 182     Vertex addedVertex = dao.addVertex(vertex.getType(), vertex.getProperties());
 183     return CrudResponseBuilder
 184         .buildUpsertVertexResponse(OxmModelValidator.validateOutgoingPayload(version, addedVertex), version);
 185   }
 186
 187   public String addEdge(String version, String type, EdgePayload payload) throws CrudException {
 188     Edge edge = RelationshipSchemaValidator.validateIncomingAddPayload(version, type, payload);
 189     return addEdge(version, edge);
 190   }
 191
 192   private String addEdge(String version, Edge edge) throws CrudException {
 193     Edge addedEdge = dao.addEdge(edge.getType(), edge.getSource(), edge.getTarget(), edge.getProperties());
 194     return CrudResponseBuilder
 195         .buildUpsertEdgeResponse(RelationshipSchemaValidator.validateOutgoingPayload(version, addedEdge), version);
 196   }
 197
 198   public String getEdge(String version, String id, String type) throws CrudException {
 199     RelationshipSchemaValidator.validateType(version, type);
 200     Edge edge = dao.getEdge(id, type);
 201
 202     return CrudResponseBuilder.buildGetEdgeResponse(RelationshipSchemaValidator.validateOutgoingPayload(version, edge),
 203         version);
 204   }
 205
 206   public String getEdges(String version, String type, Map<String, String> filter) throws CrudException {
 207     RelationshipSchemaValidator.validateType(version, type);
 208     List<Edge> items = dao.getEdges(type, RelationshipSchemaValidator.resolveCollectionfilter(version, type, filter));
 209     return CrudResponseBuilder.buildGetEdgesResponse(items, version);
 210   }
 211
 212   public String updateVertex(String version, String id, String type, VertexPayload payload) throws CrudException {
 213     Vertex vertex = OxmModelValidator.validateIncomingUpsertPayload(id, version, type, payload.getProperties());
 214     return updateVertex(version, vertex);
 215
 216   }
 217
 218   private String updateVertex(String version, Vertex vertex) throws CrudException {
 219     Vertex updatedVertex = dao.updateVertex(vertex.getId().get(), vertex.getType(), vertex.getProperties());
 220     return CrudResponseBuilder
 221         .buildUpsertVertexResponse(OxmModelValidator.validateOutgoingPayload(version, updatedVertex), version);
 222   }
 223
 224   public String patchVertex(String version, String id, String type, VertexPayload payload) throws CrudException {
 225     Vertex existingVertex = dao.getVertex(id, OxmModelValidator.resolveCollectionType(version, type));
 226     Vertex vertex = OxmModelValidator.validateIncomingPatchPayload(id, version, type, payload.getProperties(),
 227         existingVertex);
 228     return updateVertex(version, vertex);
 229
 230   }
 231
 232   public String deleteVertex(String version, String id, String type) throws CrudException {
 233     type = OxmModelValidator.resolveCollectionType(version, type);
 234     dao.deleteVertex(id, type);
 235     return "";
 236
 237   }
 238
 239   public String deleteEdge(String version, String id, String type) throws CrudException {
 240     RelationshipSchemaValidator.validateType(version, type);
 241     dao.deleteEdge(id, type);
 242     return "";
 243
 244   }
 245
 246   public String updateEdge(String version, String id, String type, EdgePayload payload) throws CrudException {
 247     Edge edge = dao.getEdge(id, type);
 248     Edge validatedEdge = RelationshipSchemaValidator.validateIncomingUpdatePayload(edge, version, payload);
 249     return updateEdge(version, validatedEdge);
 250
 251   }
 252
 253   private String updateEdge(String version, Edge edge) throws CrudException {
 254     Edge updatedEdge = dao.updateEdge(edge);
 255     return CrudResponseBuilder
 256         .buildUpsertEdgeResponse(RelationshipSchemaValidator.validateOutgoingPayload(version, updatedEdge), version);
 257   }
 258
 259   public String patchEdge(String version, String id, String type, EdgePayload payload) throws CrudException {
 260     Edge edge = dao.getEdge(id, type);
 261     Edge patchedEdge = RelationshipSchemaValidator.validateIncomingPatchPayload(edge, version, payload);
 262     return updateEdge(version, patchedEdge);
 263
 264   }
 265
 266   public Vertex getVertex(String id) throws CrudException {
 267     return dao.getVertex(id);
 268   }
 269
 270   public String getVertex(String version, String id, String type) throws CrudException {
 271     type = OxmModelValidator.resolveCollectionType(version, type);
 272     Vertex vertex = dao.getVertex(id, type);
 273     List<Edge> edges = dao.getVertexEdges(id);
 274     return CrudResponseBuilder.buildGetVertexResponse(OxmModelValidator.validateOutgoingPayload(version, vertex), edges,
 275         version);
 276   }
 277
 278   public String getVertices(String version, String type, Map<String, String> filter) throws CrudException {
 279     type = OxmModelValidator.resolveCollectionType(version, type);
 280     List<Vertex> items = dao.getVertices(type, OxmModelValidator.resolveCollectionfilter(version, type, filter));
 281     return CrudResponseBuilder.buildGetVerticesResponse(items, version);
 282   }
 283
 284 }