javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/ElementGenerator.java
2 * Back 2 Browser Bytecode Translator
3 * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, version 2 of the License.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. Look for COPYING file in the top folder.
16 * If not, see http://opensource.org/licenses/GPL-2.0.
18 package org.apidesign.bck2brwsr.htmlpage;
20 import java.io.IOException;
21 import java.io.OutputStreamWriter;
22 import java.io.Writer;
23 import java.util.Arrays;
24 import java.util.Collections;
25 import java.util.HashMap;
27 import java.util.Map.Entry;
28 import java.util.ServiceLoader;
29 import javax.annotation.processing.ProcessingEnvironment;
30 import javax.lang.model.element.Element;
31 import javax.tools.Diagnostic;
32 import javax.tools.FileObject;
33 import org.netbeans.modules.html.editor.lib.api.HtmlVersion;
34 import org.netbeans.modules.html.editor.lib.api.model.HtmlModel;
35 import org.netbeans.modules.html.editor.lib.api.model.HtmlModelProvider;
36 import org.netbeans.modules.html.editor.lib.api.model.HtmlTag;
37 import org.netbeans.modules.html.editor.lib.api.model.HtmlTagAttribute;
41 * @author Jan Horvath <jhorvath@netbeans.org>
43 public class ElementGenerator {
45 static final Map<String, String> NAMING_EXCEPTIONS = new HashMap<String, String>() {
48 put("class", "Clazz");
52 static final String javaKeywords[] = {
53 "abstract", "assert", "boolean", "break", "byte", "case",
54 "catch", "char", "class", "const", "continue", "default",
55 "do", "double", "else", "extends", "false", "final", "finally",
56 "float", "for", "goto", "if", "implements", "import",
57 "instanceof", "int", "interface", "long", "native", "new",
58 "null", "package", "private", "protected", "public",
59 "return", "short", "static", "strictfp", "super",
60 "switch", "synchronized", "this", "throw", "throws",
61 "transient", "true", "try", "void", "volatile", "while"
64 private static Map<String, String> elements = new HashMap<String, String>();
65 private final ProcessingEnvironment processingEnv;
66 private HtmlModel model = null;
68 ElementGenerator(ProcessingEnvironment processingEnv) {
69 this.processingEnv = processingEnv;
72 String getType(String pkg, String tag, Element e) {
73 String className = elements.get(tag);
74 if (className == null) {
75 className = createClass(pkg, tag, e);
76 elements.put(tag, className);
81 private String createClass(String pkg, String tag, Element e) {
82 String className = className(tag);
85 FileObject java = processingEnv.getFiler().createSourceFile(pkg + '.' + className, e);
86 w = new OutputStreamWriter(java.openOutputStream());
88 w.append("package " + pkg + ";\n\n");
89 w.append("import org.apidesign.bck2brwsr.htmlpage.api.*;\n");
90 PredefinedFields.appendImports(w, tag);
93 w.append("class ").append(className).append(" extends Element {\n\n");
94 w.append(" public ").append(className).append("(String id) {\n");
95 w.append(" super(id);\n");
97 for (Entry<String, String> entry : getAttributes(tag).entrySet()) {
98 String attrName = entry.getKey();
99 String attrType = entry.getValue();
101 w.append(" public ").append(attrType).append(" ")
102 .append("get").append(className(attrName)).append("() {\n");
103 w.append(" return (").append(attrType).append(")getAttribute(\"")
104 .append(attrName).append("\");\n");
107 w.append(" public void ")
108 .append("set").append(className(attrName)).append("(")
109 .append(attrType).append(" ").append(attributeName(attrName)).append(") {\n");
110 w.append(" setAttribute(\"").append(attrName).append("\", ").append(attributeName(attrName)).append(");\n");
113 PredefinedFields.appendFields(w, tag);
118 } catch (IOException ex) {
119 processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, "Can't create " + className + ".java", e);
125 Map<String, String> getAttributes(String tagName) {
126 Map<String, String> result = new HashMap<String, String>();
129 // HtmlModelProvider modelProvider = Lookup.getDefault().lookup(HtmlModelProvider.class);
130 ServiceLoader<HtmlModelProvider> hmpLoader =
131 ServiceLoader.load(HtmlModelProvider.class, this.getClass().getClassLoader());
132 for (HtmlModelProvider htmlModelProvider : hmpLoader) {
133 model = htmlModelProvider.getModel(HtmlVersion.HTML5);
141 processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR,
142 "HTML 5 model provider was not found on classpath");
143 return Collections.emptyMap();
145 HtmlTag tag = model.getTag(tagName);
146 for (HtmlTagAttribute attr : tag.getAttributes()) {
147 String name = attr.getName();
148 String type = Attributes.TYPES.get(name);
150 result.put(name, type);
157 private String className(String s) {
158 if (s.length() == 0) {
161 String name = NAMING_EXCEPTIONS.get(s.toLowerCase());
163 name = s.substring(0, 1).toUpperCase() + s.substring(1).toLowerCase();
168 private String attributeName(String s) {
169 if (Arrays.binarySearch(javaKeywords, s) >= 0) {
170 return String.format("%sAttr", s);