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
|
/*
* Copyright © 2016-2018 European Support Limited
*
* 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=========================================================
* Modifications copyright (c) 2019 Nokia
* ================================================================================
*/
package org.onap.sdc.tosca.services;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
import org.apache.commons.beanutils.BeanUtils;
import org.onap.sdc.tosca.datatypes.model.EntrySchema;
public class CommonUtil {
public static final String DEFAULT = "default";
public static final String UNDERSCORE_DEFAULT = "_default";
private static final String ENTRY_SCHEMA = "entry_schema";
private static final Set<Class<?>> complexClassType =
Set.of(Map.class, String.class, Integer.class, Float.class, Double.class, Set.class, Object.class, List.class);
private CommonUtil() {
throw new IllegalStateException("Utility class");
}
public static <T> Optional<T> createObjectUsingSetters(Object objectCandidate, Class<? extends T> classToCreate) throws Exception {
if (Objects.isNull(objectCandidate)) {
return Optional.empty();
}
Map<String, Object> objectAsMap = getObjectAsMap(objectCandidate);
Field[] declaredFields = classToCreate.getDeclaredFields();
createSubObjectsUsingSetters(objectAsMap, declaredFields);
handleEntrySchema(objectAsMap);
T result = populateBean(objectAsMap, classToCreate);
return Optional.of(result);
}
private static void handleEntrySchema(final Map<String, Object> objectAsMap) {
if (objectAsMap.containsKey(ENTRY_SCHEMA)) {
final Object entrySchema = objectAsMap.get(ENTRY_SCHEMA);
if (entrySchema instanceof Map) {
objectAsMap.remove(ENTRY_SCHEMA);
final Map<String, String> map = (Map<String, String>) entrySchema;
objectAsMap.put(ENTRY_SCHEMA, new EntrySchema(map.get("type")));
}
}
}
public static void createSubObjectsUsingSetters(Map<String, Object> objectAsMap, Field[] declaredFields) throws Exception {
for (Field field : declaredFields) {
if (isComplexClass(field)) {
Optional<?> objectUsingSetters = createObjectUsingSetters(objectAsMap.get(field.getName()), field.getType());
if (objectUsingSetters.isPresent()) {
objectAsMap.remove(field.getName());
objectAsMap.put(field.getName(), objectUsingSetters.get());
}
}
}
}
public static <T> T populateBean(Map<String, Object> propertiesMap, Class<T> classToCreate)
throws IllegalAccessException, InstantiationException, InvocationTargetException, NoSuchMethodException {
T result = classToCreate.getDeclaredConstructor().newInstance();
BeanUtils.populate(result, propertiesMap);
return result;
}
public static Map<String, Object> getObjectAsMap(Object obj) {
Map<String, Object> objectAsMap = obj instanceof Map ? (Map<String, Object>) obj : new ObjectMapper().convertValue(obj, Map.class);
if (objectAsMap.containsKey(DEFAULT)) {
Object defaultValue = objectAsMap.get(DEFAULT);
objectAsMap.remove(DEFAULT);
objectAsMap.put(UNDERSCORE_DEFAULT, defaultValue);
}
return objectAsMap;
}
private static boolean isComplexClass(Field field) {
return !complexClassType.contains(field.getType());
}
public static Set<String> getClassFieldNames(Class<? extends Object> classType) {
Set<String> fieldNames = new HashSet<>();
Class superClass = classType.getSuperclass();
if (superClass != null) {
fieldNames.addAll(getClassFieldNames(superClass));
}
Arrays.stream(classType.getDeclaredFields()).forEach(field -> fieldNames.add(field.getName()));
return fieldNames;
}
}
|
