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
|
/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* Copyright © 2017-2018 Amdocs
* ================================================================================
* 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.schema;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import org.codehaus.jackson.map.ObjectMapper;
import org.onap.crud.exception.CrudException;
import java.io.IOException;
import java.util.*;
import java.util.stream.Collectors;
import javax.ws.rs.core.Response.Status;
public class RelationshipSchema {
private static final Gson gson = new GsonBuilder().create();
public static final String SCHEMA_SOURCE_NODE_TYPE = "from";
public static final String SCHEMA_TARGET_NODE_TYPE = "to";
public static final String SCHEMA_RELATIONSHIP_TYPE = "label";
public static final String SCHEMA_RULES_ARRAY = "rules";
private Map<String, Map<String, Class<?>>> relations = new HashMap<>();
/**
* Hashmap of valid relationship types along with properties.
*/
private Map<String, Map<String, Class<?>>> relationTypes = new HashMap<>();
public RelationshipSchema(List<String> jsonStrings) throws CrudException, IOException {
String edgeRules = jsonStrings.get(0);
String props = jsonStrings.get(1);
HashMap<String, ArrayList<LinkedHashMap<String, String>>> rules = new ObjectMapper().readValue(edgeRules, HashMap.class);
HashMap<String, String> properties = new ObjectMapper().readValue(props, HashMap.class);
Map<String, Class<?>> edgeProps = properties.entrySet().stream().collect(Collectors.toMap(p -> p.getKey(), p -> {
try {
return resolveClass(p.getValue());
} catch (CrudException | ClassNotFoundException e) {
e.printStackTrace();
}
return null;
}));
rules.get(SCHEMA_RULES_ARRAY).forEach(l -> {
relationTypes.put(l.get(SCHEMA_RELATIONSHIP_TYPE), edgeProps);
relations.put(buildRelation(l.get(SCHEMA_SOURCE_NODE_TYPE), l.get(SCHEMA_TARGET_NODE_TYPE), l.get(SCHEMA_RELATIONSHIP_TYPE)), edgeProps);
});
}
public Map<String, Class<?>> lookupRelation(String key) {
return this.relations.get(key);
}
public Map<String, Class<?>> lookupRelationType(String type) {
return this.relationTypes.get(type);
}
public boolean isValidType(String type) {
return relationTypes.containsKey(type);
}
private String buildRelation(String source, String target, String relation){
return source + ":" + target + ":" + relation;
}
private Class<?> resolveClass(String type) throws CrudException, ClassNotFoundException {
Class<?> clazz = Class.forName(type);
validateClassTypes(clazz);
return clazz;
}
private void validateClassTypes(Class<?> clazz) throws CrudException {
if (!clazz.isAssignableFrom(Integer.class) && !clazz.isAssignableFrom(Double.class)
&& !clazz.isAssignableFrom(Boolean.class) && !clazz.isAssignableFrom(String.class)) {
throw new CrudException("", Status.BAD_REQUEST);
}
}
}
|
