javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/ElementGenerator.java
1.1 --- a/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/ElementGenerator.java Tue Apr 02 15:40:51 2013 +0200
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,175 +0,0 @@
1.4 -/**
1.5 - * Back 2 Browser Bytecode Translator
1.6 - * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
1.7 - *
1.8 - * This program is free software: you can redistribute it and/or modify
1.9 - * it under the terms of the GNU General Public License as published by
1.10 - * the Free Software Foundation, version 2 of the License.
1.11 - *
1.12 - * This program is distributed in the hope that it will be useful,
1.13 - * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.14 - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.15 - * GNU General Public License for more details.
1.16 - *
1.17 - * You should have received a copy of the GNU General Public License
1.18 - * along with this program. Look for COPYING file in the top folder.
1.19 - * If not, see http://opensource.org/licenses/GPL-2.0.
1.20 - */
1.21 -package org.apidesign.bck2brwsr.htmlpage;
1.22 -
1.23 -import java.io.IOException;
1.24 -import java.io.OutputStreamWriter;
1.25 -import java.io.Writer;
1.26 -import java.util.Arrays;
1.27 -import java.util.Collections;
1.28 -import java.util.HashMap;
1.29 -import java.util.Map;
1.30 -import java.util.Map.Entry;
1.31 -import java.util.ServiceLoader;
1.32 -import javax.annotation.processing.ProcessingEnvironment;
1.33 -import javax.lang.model.element.Element;
1.34 -import javax.tools.Diagnostic;
1.35 -import javax.tools.FileObject;
1.36 -import org.netbeans.modules.html.editor.lib.api.HtmlVersion;
1.37 -import org.netbeans.modules.html.editor.lib.api.model.HtmlModel;
1.38 -import org.netbeans.modules.html.editor.lib.api.model.HtmlModelProvider;
1.39 -import org.netbeans.modules.html.editor.lib.api.model.HtmlTag;
1.40 -import org.netbeans.modules.html.editor.lib.api.model.HtmlTagAttribute;
1.41 -
1.42 -/**
1.43 - *
1.44 - * @author Jan Horvath <jhorvath@netbeans.org>
1.45 - */
1.46 -public class ElementGenerator {
1.47 -
1.48 - static final Map<String, String> NAMING_EXCEPTIONS = new HashMap<String, String>() {
1.49 - {
1.50 - put("img", "Image");
1.51 - put("class", "Clazz");
1.52 - }
1.53 - };
1.54 -
1.55 - static final String javaKeywords[] = {
1.56 - "abstract", "assert", "boolean", "break", "byte", "case",
1.57 - "catch", "char", "class", "const", "continue", "default",
1.58 - "do", "double", "else", "extends", "false", "final", "finally",
1.59 - "float", "for", "goto", "if", "implements", "import",
1.60 - "instanceof", "int", "interface", "long", "native", "new",
1.61 - "null", "package", "private", "protected", "public",
1.62 - "return", "short", "static", "strictfp", "super",
1.63 - "switch", "synchronized", "this", "throw", "throws",
1.64 - "transient", "true", "try", "void", "volatile", "while"
1.65 - };
1.66 -
1.67 - private static Map<String, String> elements = new HashMap<String, String>();
1.68 - private final ProcessingEnvironment processingEnv;
1.69 - private HtmlModel model = null;
1.70 -
1.71 - ElementGenerator(ProcessingEnvironment processingEnv) {
1.72 - this.processingEnv = processingEnv;
1.73 - }
1.74 -
1.75 - String getType(String pkg, String tag, Element e) {
1.76 - String className = elements.get(tag);
1.77 - if (className == null) {
1.78 - className = createClass(pkg, tag, e);
1.79 - elements.put(tag, className);
1.80 - }
1.81 - return className;
1.82 - }
1.83 -
1.84 - private String createClass(String pkg, String tag, Element e) {
1.85 - String className = className(tag);
1.86 - Writer w;
1.87 - try {
1.88 - FileObject java = processingEnv.getFiler().createSourceFile(pkg + '.' + className, e);
1.89 - w = new OutputStreamWriter(java.openOutputStream());
1.90 - try {
1.91 - w.append("package " + pkg + ";\n\n");
1.92 - w.append("import org.apidesign.bck2brwsr.htmlpage.api.*;\n");
1.93 - PredefinedFields.appendImports(w, tag);
1.94 - w.append("\n");
1.95 -
1.96 - w.append("class ").append(className).append(" extends Element {\n\n");
1.97 - w.append(" public ").append(className).append("(String id) {\n");
1.98 - w.append(" super(id);\n");
1.99 - w.append(" }\n\n");
1.100 - for (Entry<String, String> entry : getAttributes(tag).entrySet()) {
1.101 - String attrName = entry.getKey();
1.102 - String attrType = entry.getValue();
1.103 - // getter
1.104 - w.append(" public ").append(attrType).append(" ")
1.105 - .append("get").append(className(attrName)).append("() {\n");
1.106 - w.append(" return (").append(attrType).append(")getAttribute(\"")
1.107 - .append(attrName).append("\");\n");
1.108 - w.append(" }\n\n");
1.109 - // setter
1.110 - w.append(" public void ")
1.111 - .append("set").append(className(attrName)).append("(")
1.112 - .append(attrType).append(" ").append(attributeName(attrName)).append(") {\n");
1.113 - w.append(" setAttribute(\"").append(attrName).append("\", ").append(attributeName(attrName)).append(");\n");
1.114 - w.append(" }\n\n");
1.115 - }
1.116 - PredefinedFields.appendFields(w, tag);
1.117 - w.append("}\n");
1.118 - } finally {
1.119 - w.close();
1.120 - }
1.121 - } catch (IOException ex) {
1.122 - processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, "Can't create " + className + ".java", e);
1.123 - return null;
1.124 - }
1.125 - return className;
1.126 - }
1.127 -
1.128 - Map<String, String> getAttributes(String tagName) {
1.129 - Map<String, String> result = new HashMap<String, String>();
1.130 -
1.131 - if (model == null) {
1.132 - // HtmlModelProvider modelProvider = Lookup.getDefault().lookup(HtmlModelProvider.class);
1.133 - ServiceLoader<HtmlModelProvider> hmpLoader =
1.134 - ServiceLoader.load(HtmlModelProvider.class, this.getClass().getClassLoader());
1.135 - for (HtmlModelProvider htmlModelProvider : hmpLoader) {
1.136 - model = htmlModelProvider.getModel(HtmlVersion.HTML5);
1.137 - if (model != null) {
1.138 - break;
1.139 - }
1.140 - }
1.141 - }
1.142 -
1.143 - if (model == null) {
1.144 - processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR,
1.145 - "HTML 5 model provider was not found on classpath");
1.146 - return Collections.emptyMap();
1.147 - }
1.148 - HtmlTag tag = model.getTag(tagName);
1.149 - for (HtmlTagAttribute attr : tag.getAttributes()) {
1.150 - String name = attr.getName();
1.151 - String type = Attributes.TYPES.get(name);
1.152 - if (type != null) {
1.153 - result.put(name, type);
1.154 - }
1.155 - }
1.156 -
1.157 - return result;
1.158 - }
1.159 -
1.160 - private String className(String s) {
1.161 - if (s.length() == 0) {
1.162 - return s;
1.163 - }
1.164 - String name = NAMING_EXCEPTIONS.get(s.toLowerCase());
1.165 - if (name == null) {
1.166 - name = s.substring(0, 1).toUpperCase() + s.substring(1).toLowerCase();
1.167 - }
1.168 - return name;
1.169 - }
1.170 -
1.171 - private String attributeName(String s) {
1.172 - if (Arrays.binarySearch(javaKeywords, s) >= 0) {
1.173 - return String.format("%sAttr", s);
1.174 - }
1.175 - return s;
1.176 - }
1.177 -
1.178 -}