2 * ============LICENSE_START==========================================
4 * ===================================================================
5 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * Copyright © 2017-2018 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============================================
21 package org.onap.aai.champcore.graph.impl;
23 import java.util.Map.Entry;
24 import java.util.concurrent.ConcurrentHashMap;
25 import java.util.concurrent.atomic.AtomicBoolean;
27 import org.onap.aai.champcore.ChampAPI;
28 import org.onap.aai.champcore.ChampCoreMsgs;
29 import org.onap.aai.champcore.ChampGraph;
30 import org.onap.aai.cl.api.Logger;
31 import org.onap.aai.cl.eelf.LoggerFactory;
34 public class ChampAPIImpl implements ChampAPI {
36 private static final Logger LOGGER = LoggerFactory.getInstance().getLogger(ChampAPIImpl.class);
38 private final AtomicBoolean shutdown;
39 private final String type;
40 private final ConcurrentHashMap<String, ChampGraph> graphs;
42 public ChampAPIImpl(String type) {
44 this.graphs = new ConcurrentHashMap<String, ChampGraph> ();
45 this.shutdown = new AtomicBoolean(false);
48 private ConcurrentHashMap<String, ChampGraph> getGraphs() {
53 public ChampGraph getGraph(String graphName) {
55 throw new IllegalStateException("Cannot call getGraph() after shutdown() has been initiated");
58 if (getGraphs().containsKey(graphName)) {
59 return getGraphs().get(graphName);
62 // At this point, we know a graph with this name doesn't exist. Create and return it.
63 final ChampGraph graph = new InMemoryChampGraphImpl.Builder().build();
64 graphs.put(graphName, graph);
69 public void shutdown() {
70 if (shutdown.compareAndSet(false, true)) {
71 for (Entry<String, ChampGraph> graphEntry : graphs.entrySet()) {
72 LOGGER.info(ChampCoreMsgs.CHAMPCORE_CHAMP_API_IMPL_INFO,
73 String.format("Shutting down graph %s", graphEntry.getKey()));
76 graphEntry.getValue().shutdown();
77 LOGGER.info(ChampCoreMsgs.CHAMPCORE_CHAMP_API_IMPL_INFO,
78 String.format("Graph %s shutdown successfully", graphEntry.getKey()));
79 } catch (Throwable t) {
80 LOGGER.warn(ChampCoreMsgs.CHAMPCORE_CHAMP_API_IMPL_WARN,
81 String.format("Caught exception while shutting down graph %s: %s", graphEntry.getKey(), t.getMessage()));
88 public String getType() {