Refactor to move from openecomp to onap

Refactor to move from openecomp to onap
IssueID: AAI-486

Change-Id: I1d5634739514acf11d5fbdf5e2c7865aaccd864e
Signed-off-by: Bansal, Nitin (nb121v) <nitin.bansal@amdocs.com>

1 files changed, 301 insertions, 0 deletions

diff --git a/src/main/java/org/onap/crud/service/CrudGraphDataService.java b/src/main/java/org/onap/crud/service/CrudGraphDataService.java
new file mode 100644
index 0000000..268e492
--- /dev/null
+++ b/src/main/java/org/onap/crud/service/CrudGraphDataService.java
@@ -0,0 +1,301 @@
+/**
+ * ============LICENSE_START=======================================================
+ * Gizmo
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property.
+ * Copyright © 2017 Amdocs
+ * All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.crud.service;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.ws.rs.core.Response.Status;
+
+import org.onap.aaiutils.oxm.OxmModelLoader;
+import org.onap.aai.champcore.ChampGraph;
+import org.onap.crud.dao.GraphDao;
+import org.onap.crud.dao.champ.ChampDao;
+import org.onap.crud.entity.Edge;
+
+import org.onap.crud.entity.Vertex;
+import org.onap.crud.exception.CrudException;
+import org.onap.crud.parser.CrudResponseBuilder;
+import org.onap.schema.OxmModelValidator;
+import org.onap.schema.RelationshipSchemaLoader;
+import org.onap.schema.RelationshipSchemaValidator;
+
+import com.google.gson.JsonElement;
+
+public class CrudGraphDataService {
+
+  private GraphDao dao;
+
+  public CrudGraphDataService(ChampGraph graphImpl) throws CrudException {
+    this.dao = new ChampDao(graphImpl);
+
+    loadModels();
+  }
+
+  public CrudGraphDataService(GraphDao dao) throws CrudException {
+    this.dao = dao;
+
+    loadModels();
+  }
+
+  private void loadModels() throws CrudException {
+    // load the schemas
+    try {
+      OxmModelLoader.loadModels();
+    } catch (Exception e) {
+      throw new CrudException(e);
+    }
+    RelationshipSchemaLoader.loadModels();
+  }
+
+  public String addVertex(String version, String type, VertexPayload payload) throws CrudException {
+    Vertex vertex = OxmModelValidator.validateIncomingUpsertPayload(null, version, type, payload.getProperties());
+    return addVertex(version, vertex);
+  }
+
+  public String addBulk(String version, BulkPayload payload) throws CrudException {
+    HashMap<String, Vertex> vertices = new HashMap<String, Vertex>();
+    HashMap<String, Edge> edges = new HashMap<String, Edge>();
+    String txId = dao.openTransaction();
+    try {
+      // Handle vertices
+      for (JsonElement v : payload.getObjects()) {
+        List<Map.Entry<String, JsonElement>> entries = new ArrayList<Map.Entry<String, JsonElement>>(
+            v.getAsJsonObject().entrySet());
+
+        if (entries.size() != 2) {
+          throw new CrudException("", Status.BAD_REQUEST);
+        }
+        Map.Entry<String, JsonElement> opr = entries.get(0);
+        Map.Entry<String, JsonElement> item = entries.get(1);
+
+        VertexPayload vertexPayload = VertexPayload.fromJson(item.getValue().getAsJsonObject().toString());
+
+        if (opr.getValue().getAsString().equalsIgnoreCase("add")
+            || opr.getValue().getAsString().equalsIgnoreCase("modify")) {
+          Vertex validatedVertex;
+          Vertex persistedVertex;
+          if (opr.getValue().getAsString().equalsIgnoreCase("add")) {
+            validatedVertex = OxmModelValidator.validateIncomingUpsertPayload(null, version, vertexPayload.getType(),
+                vertexPayload.getProperties());
+            // Call champDAO to add the vertex
+            persistedVertex = dao.addVertex(validatedVertex.getType(), validatedVertex.getProperties(), txId);
+          } else {
+            validatedVertex = OxmModelValidator.validateIncomingUpsertPayload(vertexPayload.getId(), version,
+                vertexPayload.getType(), vertexPayload.getProperties());
+            // Call champDAO to update the vertex
+            persistedVertex = dao.updateVertex(vertexPayload.getId(), validatedVertex.getType(),
+                validatedVertex.getProperties(), txId);
+          }
+
+          Vertex outgoingVertex = OxmModelValidator.validateOutgoingPayload(version, persistedVertex);
+
+          vertices.put(item.getKey(), outgoingVertex);
+
+        } else if (opr.getValue().getAsString().equalsIgnoreCase("delete")) {
+          dao.deleteVertex(vertexPayload.getId(),
+              OxmModelValidator.resolveCollectionType(version, vertexPayload.getType()), txId);
+        }
+
+      }
+      // Handle Edges
+      for (JsonElement v : payload.getRelationships()) {
+        List<Map.Entry<String, JsonElement>> entries = new ArrayList<Map.Entry<String, JsonElement>>(
+            v.getAsJsonObject().entrySet());
+
+        if (entries.size() != 2) {
+          throw new CrudException("", Status.BAD_REQUEST);
+        }
+        Map.Entry<String, JsonElement> opr = entries.get(0);
+        Map.Entry<String, JsonElement> item = entries.get(1);
+
+        EdgePayload edgePayload = EdgePayload.fromJson(item.getValue().getAsJsonObject().toString());
+
+        if (opr.getValue().getAsString().equalsIgnoreCase("add")
+            || opr.getValue().getAsString().equalsIgnoreCase("modify")) {
+          Edge validatedEdge;
+          Edge persistedEdge;
+          if (opr.getValue().getAsString().equalsIgnoreCase("add")) {
+            // Fix the source/detination
+            if (edgePayload.getSource().startsWith("$")) {
+              Vertex source = vertices.get(edgePayload.getSource().substring(1));
+              if (source == null) {
+                throw new CrudException("Not able to find vertex: " + edgePayload.getSource().substring(1),
+                    Status.INTERNAL_SERVER_ERROR);
+              }
+              edgePayload
+                  .setSource("services/inventory/" + version + "/" + source.getType() + "/" + source.getId().get());
+            }
+            if (edgePayload.getTarget().startsWith("$")) {
+              Vertex target = vertices.get(edgePayload.getTarget().substring(1));
+              if (target == null) {
+                throw new CrudException("Not able to find vertex: " + edgePayload.getTarget().substring(1),
+                    Status.INTERNAL_SERVER_ERROR);
+              }
+              edgePayload
+                  .setTarget("services/inventory/" + version + "/" + target.getType() + "/" + target.getId().get());
+            }
+            validatedEdge = RelationshipSchemaValidator.validateIncomingAddPayload(version, edgePayload.getType(),
+                edgePayload);
+            persistedEdge = dao.addEdge(validatedEdge.getType(), validatedEdge.getSource(), validatedEdge.getTarget(),
+                validatedEdge.getProperties(), txId);
+          } else {
+            Edge edge = dao.getEdge(edgePayload.getId(), edgePayload.getType(), txId);
+            validatedEdge = RelationshipSchemaValidator.validateIncomingUpdatePayload(edge, version, edgePayload);
+            persistedEdge = dao.updateEdge(edge, txId);
+          }
+
+          Edge outgoingEdge = RelationshipSchemaValidator.validateOutgoingPayload(version, persistedEdge);
+
+          edges.put(item.getKey(), outgoingEdge);
+
+        } else if (opr.getValue().getAsString().equalsIgnoreCase("delete")) {
+          RelationshipSchemaValidator.validateType(version, edgePayload.getType());
+          dao.deleteEdge(edgePayload.getId(), edgePayload.getType(), txId);
+        }
+
+      }
+      // close champ TX
+      dao.commitTransaction(txId);
+    } catch (CrudException ex) {
+      dao.rollbackTransaction(txId);
+      throw ex;
+    } catch (Exception ex) {
+      dao.rollbackTransaction(txId);
+      throw ex;
+    } finally {
+      if (dao.transactionExists(txId)) {
+        dao.rollbackTransaction(txId);
+      }
+    }
+
+    return CrudResponseBuilder.buildUpsertBulkResponse(vertices, edges, version, payload);
+  }
+
+  private String addVertex(String version, Vertex vertex) throws CrudException {
+    Vertex addedVertex = dao.addVertex(vertex.getType(), vertex.getProperties());
+    return CrudResponseBuilder
+        .buildUpsertVertexResponse(OxmModelValidator.validateOutgoingPayload(version, addedVertex), version);
+  }
+
+  public String addEdge(String version, String type, EdgePayload payload) throws CrudException {
+    Edge edge = RelationshipSchemaValidator.validateIncomingAddPayload(version, type, payload);
+    return addEdge(version, edge);
+  }
+
+  private String addEdge(String version, Edge edge) throws CrudException {
+    Edge addedEdge = dao.addEdge(edge.getType(), edge.getSource(), edge.getTarget(), edge.getProperties());
+    return CrudResponseBuilder
+        .buildUpsertEdgeResponse(RelationshipSchemaValidator.validateOutgoingPayload(version, addedEdge), version);
+  }
+
+  public String getEdge(String version, String id, String type) throws CrudException {
+    RelationshipSchemaValidator.validateType(version, type);
+    Edge edge = dao.getEdge(id, type);
+
+    return CrudResponseBuilder.buildGetEdgeResponse(RelationshipSchemaValidator.validateOutgoingPayload(version, edge),
+        version);
+  }
+
+  public String getEdges(String version, String type, Map<String, String> filter) throws CrudException {
+    RelationshipSchemaValidator.validateType(version, type);
+    List<Edge> items = dao.getEdges(type, RelationshipSchemaValidator.resolveCollectionfilter(version, type, filter));
+    return CrudResponseBuilder.buildGetEdgesResponse(items, version);
+  }
+
+  public String updateVertex(String version, String id, String type, VertexPayload payload) throws CrudException {
+    Vertex vertex = OxmModelValidator.validateIncomingUpsertPayload(id, version, type, payload.getProperties());
+    return updateVertex(version, vertex);
+
+  }
+
+  private String updateVertex(String version, Vertex vertex) throws CrudException {
+    Vertex updatedVertex = dao.updateVertex(vertex.getId().get(), vertex.getType(), vertex.getProperties());
+    return CrudResponseBuilder
+        .buildUpsertVertexResponse(OxmModelValidator.validateOutgoingPayload(version, updatedVertex), version);
+  }
+
+  public String patchVertex(String version, String id, String type, VertexPayload payload) throws CrudException {
+    Vertex existingVertex = dao.getVertex(id, OxmModelValidator.resolveCollectionType(version, type));
+    Vertex vertex = OxmModelValidator.validateIncomingPatchPayload(id, version, type, payload.getProperties(),
+        existingVertex);
+    return updateVertex(version, vertex);
+
+  }
+
+  public String deleteVertex(String version, String id, String type) throws CrudException {
+    type = OxmModelValidator.resolveCollectionType(version, type);
+    dao.deleteVertex(id, type);
+    return "";
+
+  }
+
+  public String deleteEdge(String version, String id, String type) throws CrudException {
+    RelationshipSchemaValidator.validateType(version, type);
+    dao.deleteEdge(id, type);
+    return "";
+
+  }
+
+  public String updateEdge(String version, String id, String type, EdgePayload payload) throws CrudException {
+    Edge edge = dao.getEdge(id, type);
+    Edge validatedEdge = RelationshipSchemaValidator.validateIncomingUpdatePayload(edge, version, payload);
+    return updateEdge(version, validatedEdge);
+
+  }
+
+  private String updateEdge(String version, Edge edge) throws CrudException {
+    Edge updatedEdge = dao.updateEdge(edge);
+    return CrudResponseBuilder
+        .buildUpsertEdgeResponse(RelationshipSchemaValidator.validateOutgoingPayload(version, updatedEdge), version);
+  }
+
+  public String patchEdge(String version, String id, String type, EdgePayload payload) throws CrudException {
+    Edge edge = dao.getEdge(id, type);
+    Edge patchedEdge = RelationshipSchemaValidator.validateIncomingPatchPayload(edge, version, payload);
+    return updateEdge(version, patchedEdge);
+
+  }
+
+  public Vertex getVertex(String id) throws CrudException {
+    return dao.getVertex(id);
+  }
+
+  public String getVertex(String version, String id, String type) throws CrudException {
+    type = OxmModelValidator.resolveCollectionType(version, type);
+    Vertex vertex = dao.getVertex(id, type);
+    List<Edge> edges = dao.getVertexEdges(id);
+    return CrudResponseBuilder.buildGetVertexResponse(OxmModelValidator.validateOutgoingPayload(version, vertex), edges,
+        version);
+  }
+
+  public String getVertices(String version, String type, Map<String, String> filter) throws CrudException {
+    type = OxmModelValidator.resolveCollectionType(version, type);
+    List<Vertex> items = dao.getVertices(type, OxmModelValidator.resolveCollectionfilter(version, type, filter));
+    return CrudResponseBuilder.buildGetVerticesResponse(items, version);
+  }
+
+}