1.1 --- a/dew/src/main/java/org/apidesign/bck2brwsr/dew/Compile.java Sat Oct 12 09:05:08 2013 +0200
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,146 +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.dew;
1.22 -
1.23 -import java.io.ByteArrayInputStream;
1.24 -import java.io.ByteArrayOutputStream;
1.25 -import java.io.IOException;
1.26 -import java.io.InputStream;
1.27 -import java.io.OutputStream;
1.28 -import java.net.URI;
1.29 -import java.net.URISyntaxException;
1.30 -import java.util.ArrayList;
1.31 -import java.util.Arrays;
1.32 -import java.util.HashMap;
1.33 -import java.util.List;
1.34 -import java.util.Map;
1.35 -import java.util.regex.Matcher;
1.36 -import java.util.regex.Pattern;
1.37 -import javax.tools.Diagnostic;
1.38 -import javax.tools.DiagnosticListener;
1.39 -import javax.tools.FileObject;
1.40 -import javax.tools.ForwardingJavaFileManager;
1.41 -import javax.tools.JavaFileManager;
1.42 -import javax.tools.JavaFileObject;
1.43 -import javax.tools.JavaFileObject.Kind;
1.44 -import javax.tools.SimpleJavaFileObject;
1.45 -import javax.tools.StandardJavaFileManager;
1.46 -import javax.tools.StandardLocation;
1.47 -import javax.tools.ToolProvider;
1.48 -
1.49 -/**
1.50 - *
1.51 - * @author Jaroslav Tulach <jtulach@netbeans.org>
1.52 - */
1.53 -final class Compile implements DiagnosticListener<JavaFileObject> {
1.54 - private final List<Diagnostic<? extends JavaFileObject>> errors = new ArrayList<>();
1.55 - private final Map<String, byte[]> classes;
1.56 - private final String pkg;
1.57 - private final String cls;
1.58 - private final String html;
1.59 -
1.60 - private Compile(String html, String code) throws IOException {
1.61 - this.pkg = findPkg(code);
1.62 - this.cls = findCls(code);
1.63 - this.html = html;
1.64 - classes = compile(html, code);
1.65 - }
1.66 -
1.67 - /** Performs compilation of given HTML page and associated Java code
1.68 - */
1.69 - public static Compile create(String html, String code) throws IOException {
1.70 - return new Compile(html, code);
1.71 - }
1.72 -
1.73 - /** Checks for given class among compiled resources */
1.74 - public byte[] get(String res) {
1.75 - return classes.get(res);
1.76 - }
1.77 -
1.78 - /** Obtains errors created during compilation.
1.79 - */
1.80 - public List<Diagnostic<? extends JavaFileObject>> getErrors() {
1.81 - List<Diagnostic<? extends JavaFileObject>> err = new ArrayList<>();
1.82 - for (Diagnostic<? extends JavaFileObject> diagnostic : errors) {
1.83 - if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
1.84 - err.add(diagnostic);
1.85 - }
1.86 - }
1.87 - return err;
1.88 - }
1.89 -
1.90 - private Map<String, byte[]> compile(final String html, final String code) throws IOException {
1.91 - final ClassLoaderFileManager clfm = new ClassLoaderFileManager();
1.92 - final JavaFileObject file = clfm.createMemoryFileObject(
1.93 - ClassLoaderFileManager.convertFQNToResource(pkg.isEmpty() ? cls : pkg + "." + cls) + Kind.SOURCE.extension,
1.94 - Kind.SOURCE,
1.95 - code.getBytes());
1.96 - final JavaFileObject htmlFile = clfm.createMemoryFileObject(
1.97 - ClassLoaderFileManager.convertFQNToResource(pkg),
1.98 - Kind.OTHER,
1.99 - html.getBytes());
1.100 -
1.101 - JavaFileManager jfm = new ForwardingJavaFileManager<JavaFileManager>(clfm) {
1.102 - @Override
1.103 - public FileObject getFileForInput(Location location, String packageName, String relativeName) throws IOException {
1.104 - if (location == StandardLocation.SOURCE_PATH) {
1.105 - if (packageName.equals(pkg)) {
1.106 - return htmlFile;
1.107 - }
1.108 - }
1.109 - return null;
1.110 - }
1.111 - };
1.112 -
1.113 - final Boolean res = ToolProvider.getSystemJavaCompiler().getTask(null, jfm, this, /*XXX:*/Arrays.asList("-source", "1.7", "-target", "1.7"), null, Arrays.asList(file)).call();
1.114 - Map<String, byte[]> result = new HashMap<>();
1.115 - for (MemoryFileObject generated : clfm.getGeneratedFiles(Kind.CLASS)) {
1.116 - result.put(generated.getName().substring(1), generated.getContent());
1.117 - }
1.118 - return result;
1.119 - }
1.120 -
1.121 -
1.122 - @Override
1.123 - public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
1.124 - errors.add(diagnostic);
1.125 - }
1.126 - private static String findPkg(String java) throws IOException {
1.127 - Pattern p = Pattern.compile("package\\p{javaWhitespace}*([\\p{Alnum}\\.]+)\\p{javaWhitespace}*;", Pattern.MULTILINE);
1.128 - Matcher m = p.matcher(java);
1.129 - if (!m.find()) {
1.130 - throw new IOException("Can't find package declaration in the java file");
1.131 - }
1.132 - String pkg = m.group(1);
1.133 - return pkg;
1.134 - }
1.135 - private static String findCls(String java) throws IOException {
1.136 - Pattern p = Pattern.compile("class\\p{javaWhitespace}*([\\p{Alnum}\\.]+)\\p{javaWhitespace}", Pattern.MULTILINE);
1.137 - Matcher m = p.matcher(java);
1.138 - if (!m.find()) {
1.139 - throw new IOException("Can't find package declaration in the java file");
1.140 - }
1.141 - String cls = m.group(1);
1.142 - return cls;
1.143 - }
1.144 -
1.145 - String getHtml() {
1.146 - String fqn = "'" + pkg + '.' + cls + "'";
1.147 - return html.replace("'${fqn}'", fqn);
1.148 - }
1.149 -}