2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2017 Amdocs
8 * ================================================================================
9 * Modifications (C) 2019 Ericsson
10 * =============================================================================
11 * Licensed under the Apache License, Version 2.0 (the "License");
12 * you may not use this file except in compliance with the License.
13 * You may obtain a copy of the License at
15 * http://www.apache.org/licenses/LICENSE-2.0
17 * Unless required by applicable law or agreed to in writing, software
18 * distributed under the License is distributed on an "AS IS" BASIS,
19 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
20 * See the License for the specific language governing permissions and
21 * limitations under the License.
22 * ============LICENSE_END=========================================================
25 package org.onap.appc.dg.dependencymanager.impl;
27 import org.onap.appc.dg.dependencymanager.DependencyManager;
28 import org.onap.appc.dg.dependencymanager.DependencyType;
29 import org.onap.appc.dg.dependencymanager.exception.DependencyModelNotFound;
30 import org.onap.appc.dg.flowbuilder.exception.InvalidDependencyModelException;
31 import org.onap.appc.dg.objects.DependencyTypes;
32 import org.onap.appc.dg.objects.VnfcDependencyModel;
34 import org.onap.appc.cache.MetadataCache;
35 import org.onap.appc.cache.impl.MetadataCacheFactory;
36 import org.onap.appc.metadata.objects.DependencyModelIdentifier;
37 import com.att.eelf.configuration.EELFLogger;
38 import com.att.eelf.configuration.EELFManager;
40 public class DependencyManagerImpl implements DependencyManager {
42 private static final EELFLogger logger = EELFManager.getInstance().getLogger(DependencyManagerImpl.class);
44 MetadataCache<DependencyModelIdentifier,VnfcDependencyModel> cache;
46 DependencyManagerImpl() {
47 cache = MetadataCacheFactory.getInstance().getMetadataCache();
50 public VnfcDependencyModel getVnfcDependencyModel(DependencyModelIdentifier modelIdentifier,
51 DependencyTypes dependencyType) throws InvalidDependencyModelException, DependencyModelNotFound {
52 if (logger.isTraceEnabled()) {
53 logger.trace("Entering to getVnfcDependencyModel with DependencyModelIdentifier = " + modelIdentifier
54 + " , DependencyTypes = " + dependencyType);
56 VnfcDependencyModel dependencyModel = cache.getObject(modelIdentifier);
57 if (dependencyModel == null) {
58 logger.debug("Dependency model not found in cache, creating strategy for reading it");
59 DependencyType strategy = getStrategy(dependencyType);
60 // Throw exception if strategy could not be created because it is required
61 // to retrieve the vnfc dependency model later
62 if (strategy == null) {
63 throw new NullPointerException("Strategy is null. Failed to retrieve Vnfc Dependency Model");
65 dependencyModel = strategy.getVnfcDependencyModel(modelIdentifier);
67 if (logger.isTraceEnabled()) {
68 logger.trace("Returning getVnfcDependencyModel with dependency model = " + dependencyModel);
70 return dependencyModel;
73 private DependencyType getStrategy(DependencyTypes dependencyType) {
74 switch (dependencyType) {
76 return new ResourceDependency();