2 * ============LICENSE_START==========================================
4 * ===================================================================
5 * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
6 * Copyright © 2017 Amdocs
7 * ===================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END============================================
20 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
22 package org.onap.aai.champcore.graph.impl;
24 import java.util.HashMap;
25 import java.util.List;
27 import java.util.Optional;
28 import java.util.concurrent.ConcurrentHashMap;
29 import java.util.stream.Stream;
31 import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal;
32 import org.apache.tinkerpop.gremlin.structure.Edge;
33 import org.apache.tinkerpop.gremlin.structure.Vertex;
34 import org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerGraph;
35 import org.onap.aai.champcore.ChampCapabilities;
36 import org.onap.aai.champcore.ChampTransaction;
37 import org.onap.aai.champcore.NoOpTinkerPopTransaction;
38 import org.onap.aai.champcore.exceptions.ChampIndexNotExistsException;
39 import org.onap.aai.champcore.model.ChampObject;
40 import org.onap.aai.champcore.model.ChampObjectIndex;
41 import org.onap.aai.champcore.model.ChampRelationshipIndex;
42 import org.onap.aai.champcore.schema.ChampSchemaEnforcer;
43 import org.onap.aai.champcore.schema.DefaultChampSchemaEnforcer;
45 public final class InMemoryChampGraphImpl extends AbstractTinkerpopChampGraph {
47 private static final ChampCapabilities CAPABILITIES = new ChampCapabilities() {
50 public boolean canDeleteObjectIndices() {
55 public boolean canDeleteRelationshipIndices() {
60 private final ConcurrentHashMap<String, ChampObjectIndex> objectIndices;
61 private final ConcurrentHashMap<String, ChampRelationshipIndex> relationshipIndices;
63 private final ChampSchemaEnforcer schemaEnforcer;
64 private final TinkerGraph graph;
66 private InMemoryChampGraphImpl(Builder builder) {
67 super(builder.graphConfiguration);
68 this.graph = TinkerGraph.open();
70 this.objectIndices = new ConcurrentHashMap<String, ChampObjectIndex> ();
71 this.relationshipIndices = new ConcurrentHashMap<String, ChampRelationshipIndex> ();
73 this.schemaEnforcer = builder.schemaEnforcer;
77 public ChampTransaction getOrCreateTransactionInstance(Optional<ChampTransaction> transaction) {
79 return new NoOpTinkerPopTransaction(getGraph());
83 public static class Builder {
84 private final Map<String, Object> graphConfiguration = new HashMap<String, Object> ();
85 private ChampSchemaEnforcer schemaEnforcer = new DefaultChampSchemaEnforcer();
89 public Builder schemaEnforcer(ChampSchemaEnforcer schemaEnforcer) {
90 this.schemaEnforcer = schemaEnforcer;
94 public Builder properties(Map<String, Object> properties) {
96 this.graphConfiguration.putAll(properties);
100 public Builder property(String path, Object value) {
102 graphConfiguration.put(path, value);
106 public InMemoryChampGraphImpl build() {
107 return new InMemoryChampGraphImpl(this);
111 protected ChampSchemaEnforcer getSchemaEnforcer() {
112 return schemaEnforcer;
116 protected TinkerGraph getGraph() {
121 private ConcurrentHashMap<String, ChampObjectIndex> getObjectIndices() {
122 return objectIndices;
125 private ConcurrentHashMap<String, ChampRelationshipIndex> getRelationshipIndices() {
126 return relationshipIndices;
130 public void executeStoreObjectIndex(ChampObjectIndex index) {
132 if (isShutdown()) throw new IllegalStateException("Cannot call storeObjectIndex() after shutdown has been initiated");
134 getGraph().createIndex(index.getField().getName(), Vertex.class);
135 getObjectIndices().put(index.getName(), index);
139 public Optional<ChampObjectIndex> retrieveObjectIndex(String indexName) {
140 if (isShutdown()) throw new IllegalStateException("Cannot call retrieveObjectIndex() after shutdown has been initiated");
142 if (getObjectIndices().containsKey(indexName))
143 return Optional.of(getObjectIndices().get(indexName));
145 return Optional.empty();
149 public Stream<ChampObjectIndex> retrieveObjectIndices() {
150 if (isShutdown()) throw new IllegalStateException("Cannot call retrieveObjectIndices() after shutdown has been initiated");
152 return getObjectIndices().values().stream();
155 public void executeDeleteObjectIndex(String indexName) throws ChampIndexNotExistsException {
156 if (isShutdown()) throw new IllegalStateException("Cannot call deleteObjectIndex() after shutdown has been initiated");
158 final ChampObjectIndex objectIndex = getObjectIndices().remove(indexName);
160 if (objectIndex == null) throw new ChampIndexNotExistsException();
162 getGraph().dropIndex(objectIndex.getField().getName(), Vertex.class);
165 public void executeStoreRelationshipIndex(ChampRelationshipIndex index) {
166 if (isShutdown()) throw new IllegalStateException("Cannot call storeRelationshipIndex() after shutdown has been initiated");
168 getGraph().createIndex(index.getField().getName(), Edge.class);
169 getRelationshipIndices().put(index.getName(), index);
173 public Optional<ChampRelationshipIndex> retrieveRelationshipIndex(String indexName) {
174 if (isShutdown()) throw new IllegalStateException("Cannot call retrieveRelationshipIndex() after shutdown has been initiated");
176 if (getRelationshipIndices().containsKey(indexName)) {
177 return Optional.of(getRelationshipIndices().get(indexName));
180 return Optional.empty();
184 public Stream<ChampRelationshipIndex> retrieveRelationshipIndices() {
185 if (isShutdown()) throw new IllegalStateException("Cannot call retrieveRelationshipIndices() after shutdown has been initiated");
187 return getRelationshipIndices().values().stream();
190 public void executeDeleteRelationshipIndex(String indexName) throws ChampIndexNotExistsException {
191 if (isShutdown()) throw new IllegalStateException("Cannot call deleteRelationshipIndex() after shutdown has been initiated");
193 final ChampRelationshipIndex relationshipIndex = getRelationshipIndices().remove(indexName);
195 if (relationshipIndex == null) throw new ChampIndexNotExistsException();
197 getGraph().dropIndex(relationshipIndex.getField().getName(), Edge.class);
201 public ChampCapabilities capabilities() {
206 public GraphTraversal<?, ?> hasLabel(GraphTraversal<?, ?> query, Object type) {
207 return query.hasLabel((String)type, (String)type);