1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/*-
* ========================LICENSE_START=================================
* ONAP : ccsdk oran
* ======================================================================
* Copyright (C) 2019-2020 Nordix Foundation. 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===================================
*/
package org.onap.ccsdk.oran.a1policymanagementservice.repository;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import java.lang.invoke.MethodHandles;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Vector;
import org.onap.ccsdk.oran.a1policymanagementservice.configuration.ApplicationConfig;
import org.onap.ccsdk.oran.a1policymanagementservice.datastore.DataStore;
import org.onap.ccsdk.oran.a1policymanagementservice.exceptions.EntityNotFoundException;
import org.onap.ccsdk.oran.a1policymanagementservice.exceptions.ServiceException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.lang.Nullable;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
public class PolicyTypes {
private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private Map<String, PolicyType> types = new HashMap<>();
private static Gson gson = new GsonBuilder().create();
private final DataStore dataStore;
public PolicyTypes(@Autowired ApplicationConfig appConfig) {
this.dataStore = DataStore.create(appConfig, "policytypes");
}
public synchronized PolicyType getType(String name) throws EntityNotFoundException {
PolicyType t = types.get(name);
if (t == null) {
throw new EntityNotFoundException("Could not find type: " + name);
}
return t;
}
public synchronized PolicyType get(String name) {
return types.get(name);
}
public synchronized void put(PolicyType type) {
types.put(type.getId(), type);
store(type);
}
public synchronized boolean contains(String policyType) {
return types.containsKey(policyType);
}
public synchronized Collection<PolicyType> getAll() {
return new Vector<>(types.values());
}
/**
* Filter out types matching criterias
*
* @param types the types to select from
* @param typeName select types with given type name
* @param compatibleWithVersion select types that are compatible with given
* version string (major.minor.patch).
* Matching types will be sorted in ascending
* order.
* @return the types that matches given criterias
* @throws ServiceException if there are errors in the given input
*/
public static Collection<PolicyType> filterTypes(Collection<PolicyType> types, @Nullable String typeName,
@Nullable String compatibleWithVersion) throws ServiceException {
if (typeName != null) {
types = filterTypeName(types, typeName);
}
if (compatibleWithVersion != null) {
types = filterCompatibleWithVersion(types, compatibleWithVersion);
}
return types;
}
public synchronized int size() {
return types.size();
}
public synchronized void clear() {
this.types.clear();
dataStore.deleteAllObjects().onErrorResume(t -> Mono.empty()).subscribe();
}
public void store(PolicyType type) {
byte[] bytes = gson.toJson(type).getBytes();
dataStore.writeObject(getPath(type), bytes) //
.doOnError(t -> logger.warn("Could not store policy type: {} {}", type.getId(), t.getMessage()))
.subscribe();
}
public Flux<PolicyType> restoreFromDatabase() {
return this.dataStore.createDataStore().flatMapMany(x -> dataStore.listObjects("")) //
.flatMap(dataStore::readObject) //
.map(String::new) //
.map(json -> gson.fromJson(json, PolicyType.class)).doOnNext(type -> this.types.put(type.getId(), type)) //
.doOnError(t -> logger.warn("Could not restore policy type database : {}", t.getMessage())) //
.doFinally(sig -> logger.debug("Restored type database,no of types: {}", this.types.size()))
.onErrorResume(t -> Flux.empty()); //
}
private static Collection<PolicyType> filterTypeName(Collection<PolicyType> types, String typeName) {
Collection<PolicyType> result = new ArrayList<>();
for (PolicyType type : types) {
PolicyType.TypeId nameVersion = type.getTypeId();
if (nameVersion.getName().equals(typeName)) {
result.add(type);
}
}
return result;
}
private static Collection<PolicyType> filterCompatibleWithVersion(Collection<PolicyType> types, String versionStr)
throws ServiceException {
List<PolicyType> result = new ArrayList<>();
PolicyType.Version requestedVersion = PolicyType.Version.ofString(versionStr);
for (PolicyType type : types) {
if (type.getVersion().isCompatibleWith(requestedVersion)) {
result.add(type);
}
}
result.sort((left, right) -> left.getVersion().compareTo(right.getVersion()));
return result;
}
private String getPath(PolicyType type) {
return type.getId() + ".json";
}
}
|
