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
|
package com.github.javaparser.printer;
import com.github.javaparser.ast.Node;
import com.github.javaparser.ast.NodeList;
import com.github.javaparser.metamodel.NodeMetaModel;
import com.github.javaparser.metamodel.PropertyMetaModel;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import static com.github.javaparser.utils.Utils.assertNotNull;
import static java.util.stream.Collectors.toList;
/**
* Outputs a JSON file containing the AST meant for inspecting it.
*/
public class JsonPrinter {
private final boolean outputNodeType;
public JsonPrinter(boolean outputNodeType) {
this.outputNodeType = outputNodeType;
}
public String output(Node node) {
return output(node, null, 0);
}
public String output(Node node, String name, int level) {
assertNotNull(node);
NodeMetaModel metaModel = node.getMetaModel();
List<PropertyMetaModel> allPropertyMetaModels = metaModel.getAllPropertyMetaModels();
List<PropertyMetaModel> attributes = allPropertyMetaModels.stream().filter(PropertyMetaModel::isAttribute).filter(PropertyMetaModel::isSingular).collect(toList());
List<PropertyMetaModel> subNodes = allPropertyMetaModels.stream().filter(PropertyMetaModel::isNode).filter(PropertyMetaModel::isSingular).collect(toList());
List<PropertyMetaModel> subLists = allPropertyMetaModels.stream().filter(PropertyMetaModel::isNodeList).collect(toList());
final List<String> content = new ArrayList<>();
if (outputNodeType) {
content.add(q("type") + ":" + q(metaModel.getTypeName()));
}
for (PropertyMetaModel attributeMetaModel : attributes) {
content.add(q(attributeMetaModel.getName()) + ":" + q(attributeMetaModel.getValue(node).toString()));
}
for (PropertyMetaModel subNodeMetaModel : subNodes) {
Node value = (Node) subNodeMetaModel.getValue(node);
if (value != null) {
content.add(output(value, subNodeMetaModel.getName(), level + 1));
}
}
for (PropertyMetaModel subListMetaModel : subLists) {
NodeList<? extends Node> subList = (NodeList<? extends Node>) subListMetaModel.getValue(node);
if (subList != null && !subList.isEmpty()) {
final List<String> listContent = new ArrayList<>();
for (Node subListNode : subList) {
listContent.add(output(subListNode, null, level + 1));
}
content.add(listContent.stream().collect(Collectors.joining(",", q(subListMetaModel.getName()) + ":[", "]")));
}
}
if (name == null) {
return content.stream().collect(Collectors.joining(",", "{", "}"));
}
return content.stream().collect(Collectors.joining(",", q(name) + ":{", "}"));
}
private static String q(String value) {
return "\"" + value.replace("\"", "\\\"").replace("\n", "\\n").replace("\r", "\\r") + "\"";
}
}
|
