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
|
/**
* ============LICENSE_START===================================================
* SPARKY (AAI UI service)
* ============================================================================
* Copyright © 2017 AT&T Intellectual Property.
* Copyright © 2017 Amdocs
* 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=====================================================
*
* ECOMP and OpenECOMP are trademarks
* and service marks of AT&T Intellectual Property.
*/
package org.openecomp.sparky.util;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.Lists;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
/**
* The Class TreeWalker.
*/
public class TreeWalker {
/**
* Convert json to node.
*
* @param json the json
* @return the json node
* @throws JsonProcessingException the json processing exception
* @throws IOException Signals that an I/O exception has occurred.
*/
public JsonNode convertJsonToNode(String json) throws JsonProcessingException, IOException {
ObjectMapper mapper = new ObjectMapper();
if (json == null) {
return null;
}
return mapper.readTree(json);
}
/**
* Walk tree.
*
* @param paths the paths
* @param root the root
*/
public void walkTree(List<String> paths, JsonNode root) {
walker(paths, null, root);
}
/**
* Walker.
*
* @param paths the paths
* @param nodename the nodename
* @param node the node
*/
private void walker(List<String> paths, String nodename, JsonNode node) {
if (node == null) {
return;
}
/*
* if ( nodename != null ) { paths.add(nodename); }
*/
// System.out.println("path: " + nameToPrint);
if (node.isObject()) {
Iterator<Map.Entry<String, JsonNode>> iterator = node.fields();
ArrayList<Map.Entry<String, JsonNode>> nodesList = Lists.newArrayList(iterator);
// System.out.println("Walk Tree - root:" + node + ", elements
// keys:" + nodesList);
if (nodesList.isEmpty()) {
if (nodename != null) {
paths.add(nodename);
}
} else {
for (Map.Entry<String, JsonNode> nodEntry : nodesList) {
String name = nodEntry.getKey();
JsonNode newNode = nodEntry.getValue();
if (newNode.isValueNode()) {
if (nodename == null) {
paths.add(name + "=" + newNode.asText());
} else {
paths.add(nodename + "." + name + "=" + newNode.asText());
}
} else {
if (nodename == null) {
walker(paths, name, newNode);
} else {
walker(paths, nodename + "." + name, newNode);
}
}
}
}
} else if (node.isArray()) {
Iterator<JsonNode> arrayItemsIterator = node.elements();
ArrayList<JsonNode> arrayItemsList = Lists.newArrayList(arrayItemsIterator);
for (JsonNode arrayNode : arrayItemsList) {
walker(paths, nodename, arrayNode);
}
} else if (node.isValueNode()) {
paths.add(nodename + "=" + node.asText());
}
}
}
|
