| 1 | /* |
|---|---|
| 2 | * Copyright (C) 2007-2010 Júlio Vilmar Gesser. |
| 3 | * Copyright (C) 2011, 2013-2020 The JavaParser Team. |
| 4 | * |
| 5 | * This file is part of JavaParser. |
| 6 | * |
| 7 | * JavaParser can be used either under the terms of |
| 8 | * a) the GNU Lesser General Public License as published by |
| 9 | * the Free Software Foundation, either version 3 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * b) the terms of the Apache License |
| 12 | * |
| 13 | * You should have received a copy of both licenses in LICENCE.LGPL and |
| 14 | * LICENCE.APACHE. Please refer to those files for details. |
| 15 | * |
| 16 | * JavaParser is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU Lesser General Public License for more details. |
| 20 | */ |
| 21 | |
| 22 | package com.github.javaparser.printer; |
| 23 | |
| 24 | import com.github.javaparser.ast.Node; |
| 25 | import com.github.javaparser.ast.NodeList; |
| 26 | import com.github.javaparser.metamodel.NodeMetaModel; |
| 27 | import com.github.javaparser.metamodel.PropertyMetaModel; |
| 28 | |
| 29 | import java.util.List; |
| 30 | |
| 31 | import static com.github.javaparser.utils.Utils.assertNotNull; |
| 32 | import static java.util.stream.Collectors.toList; |
| 33 | |
| 34 | /** |
| 35 | * Outputs an XML file containing the AST meant for inspecting it. |
| 36 | */ |
| 37 | public class XmlPrinter { |
| 38 | private final boolean outputNodeType; |
| 39 | |
| 40 | public XmlPrinter(boolean outputNodeType) { |
| 41 | this.outputNodeType = outputNodeType; |
| 42 | } |
| 43 | |
| 44 | public String output(Node node) { |
| 45 | StringBuilder output = new StringBuilder(); |
| 46 | output(node, "root", 0, output); |
| 47 | return output.toString(); |
| 48 | } |
| 49 | |
| 50 | public void output(Node node, String name, int level, StringBuilder builder) { |
| 51 | assertNotNull(node); |
| 52 | NodeMetaModel metaModel = node.getMetaModel(); |
| 53 | List<PropertyMetaModel> allPropertyMetaModels = metaModel.getAllPropertyMetaModels(); |
| 54 | List<PropertyMetaModel> attributes = allPropertyMetaModels.stream().filter(PropertyMetaModel::isAttribute).filter(PropertyMetaModel::isSingular).collect(toList()); |
| 55 | List<PropertyMetaModel> subNodes = allPropertyMetaModels.stream().filter(PropertyMetaModel::isNode).filter(PropertyMetaModel::isSingular).collect(toList()); |
| 56 | List<PropertyMetaModel> subLists = allPropertyMetaModels.stream().filter(PropertyMetaModel::isNodeList).collect(toList()); |
| 57 | |
| 58 | builder.append("<").append(name); |
| 59 | if (outputNodeType) { |
| 60 | builder.append(attribute("type", metaModel.getTypeName())); |
| 61 | } |
| 62 | |
| 63 | for (PropertyMetaModel attributeMetaModel : attributes) { |
| 64 | builder.append(attribute(attributeMetaModel.getName(), attributeMetaModel.getValue(node).toString())); |
| 65 | } |
| 66 | builder.append(">"); |
| 67 | |
| 68 | for (PropertyMetaModel subNodeMetaModel : subNodes) { |
| 69 | Node value = (Node) subNodeMetaModel.getValue(node); |
| 70 | if (value != null) { |
| 71 | output(value, subNodeMetaModel.getName(), level + 1, builder); |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | for (PropertyMetaModel subListMetaModel : subLists) { |
| 76 | NodeList<? extends Node> subList = (NodeList<? extends Node>) subListMetaModel.getValue(node); |
| 77 | if (subList != null && !subList.isEmpty()) { |
| 78 | String listName = subListMetaModel.getName(); |
| 79 | builder.append("<").append(listName).append(">"); |
| 80 | String singular = listName.substring(0, listName.length() - 1); |
| 81 | for (Node subListNode : subList) { |
| 82 | output(subListNode, singular, level + 1, builder); |
| 83 | } |
| 84 | builder.append(close(listName)); |
| 85 | } |
| 86 | } |
| 87 | builder.append(close(name)); |
| 88 | } |
| 89 | |
| 90 | private static String close(String name) { |
| 91 | return "</" + name + ">"; |
| 92 | } |
| 93 | |
| 94 | private static String attribute(String name, String value) { |
| 95 | return " " + name + "='" + value + "'"; |
| 96 | } |
| 97 | |
| 98 | public static void print(Node node) { |
| 99 | System.out.println(new XmlPrinter(true).output(node)); |
| 100 | } |
| 101 | } |
| 102 | |
| 103 |
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