duke@1: /*
jjg@1358:  * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
duke@1:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1:  *
duke@1:  * This code is free software; you can redistribute it and/or modify it
duke@1:  * under the terms of the GNU General Public License version 2 only, as
ohair@554:  * published by the Free Software Foundation.  Oracle designates this
duke@1:  * particular file as subject to the "Classpath" exception as provided
ohair@554:  * by Oracle in the LICENSE file that accompanied this code.
duke@1:  *
duke@1:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@1:  * version 2 for more details (a copy is included in the LICENSE file that
duke@1:  * accompanied this code).
duke@1:  *
duke@1:  * You should have received a copy of the GNU General Public License version
duke@1:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@1:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1:  *
ohair@554:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554:  * or visit www.oracle.com if you need additional information or have any
ohair@554:  * questions.
duke@1:  */
duke@1: 
duke@1: package com.sun.tools.javac.api;
duke@1: 
duke@1: import java.io.InputStream;
duke@1: import java.io.OutputStream;
jjg@944: import java.io.OutputStreamWriter;
duke@1: import java.io.PrintWriter;
duke@1: import java.io.Writer;
jjg@944: import java.nio.charset.Charset;
duke@1: import java.util.Collections;
duke@1: import java.util.EnumSet;
duke@1: import java.util.Iterator;
duke@1: import java.util.Locale;
duke@1: import java.util.Set;
duke@1: import javax.lang.model.SourceVersion;
duke@1: import javax.tools.*;
duke@1: 
duke@1: import com.sun.source.util.JavacTask;
jjg@50: import com.sun.tools.javac.file.JavacFileManager;
duke@1: import com.sun.tools.javac.main.Main;
jjg@1157: import com.sun.tools.javac.main.Option;
jjg@1157: import com.sun.tools.javac.main.OptionHelper;
jjg@1157: import com.sun.tools.javac.main.OptionHelper.GrumpyHelper;
jjg@946: import com.sun.tools.javac.util.ClientCodeException;
duke@1: import com.sun.tools.javac.util.Context;
duke@1: import com.sun.tools.javac.util.Log;
jjg@1136: import com.sun.tools.javac.util.Log.PrefixKind;
duke@1: import com.sun.tools.javac.util.Options;
duke@1: 
duke@1: /**
duke@1:  * TODO: describe com.sun.tools.javac.api.Tool
duke@1:  *
jjg@581:  * <p><b>This is NOT part of any supported API.
duke@1:  * If you write code that depends on this, you do so at your own
duke@1:  * risk.  This code and its internal interfaces are subject to change
duke@1:  * or deletion without notice.</b></p>
duke@1:  *
duke@1:  * @author Peter von der Ah\u00e9
duke@1:  */
duke@1: public final class JavacTool implements JavaCompiler {
duke@1:     /**
jjg@1157:      * Constructor used by service provider mechanism.  The recommended way to
jjg@1157:      * obtain an instance of this class is by using {@link #create} or the
jjg@1157:      * service provider mechanism.
jjg@1358:      * @see javax.tools.JavaCompiler
duke@1:      * @see javax.tools.ToolProvider
duke@1:      * @see #create
duke@1:      */
duke@1:     @Deprecated
duke@1:     public JavacTool() {}
duke@1: 
duke@1:     /**
duke@1:      * Static factory method for creating new instances of this tool.
duke@1:      * @return new instance of this tool
duke@1:      */
duke@1:     public static JavacTool create() {
duke@1:         return new JavacTool();
duke@1:     }
duke@1: 
duke@1:     public JavacFileManager getStandardFileManager(
duke@1:         DiagnosticListener<? super JavaFileObject> diagnosticListener,
duke@1:         Locale locale,
duke@1:         Charset charset) {
duke@1:         Context context = new Context();
jjg@944:         context.put(Locale.class, locale);
duke@1:         if (diagnosticListener != null)
duke@1:             context.put(DiagnosticListener.class, diagnosticListener);
jjg@944:         PrintWriter pw = (charset == null)
jjg@944:                 ? new PrintWriter(System.err, true)
jjg@944:                 : new PrintWriter(new OutputStreamWriter(System.err, charset), true);
jjg@944:         context.put(Log.outKey, pw);
duke@1:         return new JavacFileManager(context, true, charset);
duke@1:     }
duke@1: 
jjg@1136:     @Override
duke@1:     public JavacTask getTask(Writer out,
duke@1:                              JavaFileManager fileManager,
duke@1:                              DiagnosticListener<? super JavaFileObject> diagnosticListener,
duke@1:                              Iterable<String> options,
duke@1:                              Iterable<String> classes,
jjg@1136:                              Iterable<? extends JavaFileObject> compilationUnits) {
jjg@1136:         Context context = new Context();
jjg@1136:         return getTask(out, fileManager, diagnosticListener,
jjg@1136:                 options, classes, compilationUnits,
jjg@1136:                 context);
jjg@1136:     }
jjg@1136: 
jjg@1136:     public JavacTask getTask(Writer out,
jjg@1136:                              JavaFileManager fileManager,
jjg@1136:                              DiagnosticListener<? super JavaFileObject> diagnosticListener,
jjg@1136:                              Iterable<String> options,
jjg@1136:                              Iterable<String> classes,
jjg@1136:                              Iterable<? extends JavaFileObject> compilationUnits,
jjg@1136:                              Context context)
duke@1:     {
jjg@946:         try {
jjg@946:             ClientCodeWrapper ccw = ClientCodeWrapper.instance(context);
jjg@946: 
jjg@946:             final String kindMsg = "All compilation units must be of SOURCE kind";
jjg@946:             if (options != null)
jjg@946:                 for (String option : options)
jjg@946:                     option.getClass(); // null check
jjg@946:             if (classes != null) {
jjg@946:                 for (String cls : classes)
jjg@946:                     if (!SourceVersion.isName(cls)) // implicit null check
jjg@946:                         throw new IllegalArgumentException("Not a valid class name: " + cls);
jjg@946:             }
jjg@946:             if (compilationUnits != null) {
jjg@946:                 compilationUnits = ccw.wrapJavaFileObjects(compilationUnits); // implicit null check
jjg@946:                 for (JavaFileObject cu : compilationUnits) {
jjg@946:                     if (cu.getKind() != JavaFileObject.Kind.SOURCE)
jjg@946:                         throw new IllegalArgumentException(kindMsg);
jjg@946:                 }
jjg@946:             }
jjg@946: 
jjg@946:             if (diagnosticListener != null)
jjg@946:                 context.put(DiagnosticListener.class, ccw.wrap(diagnosticListener));
jjg@946: 
jjg@946:             if (out == null)
jjg@946:                 context.put(Log.outKey, new PrintWriter(System.err, true));
jjg@946:             else
jjg@946:                 context.put(Log.outKey, new PrintWriter(out, true));
jjg@946: 
jjg@946:             if (fileManager == null)
jjg@946:                 fileManager = getStandardFileManager(diagnosticListener, null, null);
jjg@946:             fileManager = ccw.wrap(fileManager);
jjg@1157: 
jjg@946:             context.put(JavaFileManager.class, fileManager);
jjg@1157: 
jjg@946:             processOptions(context, fileManager, options);
jjg@946:             Main compiler = new Main("javacTask", context.get(Log.outKey));
jjg@946:             return new JavacTaskImpl(compiler, options, context, classes, compilationUnits);
jjg@946:         } catch (ClientCodeException ex) {
jjg@946:             throw new RuntimeException(ex.getCause());
duke@1:         }
duke@1:     }
duke@1: 
ohrstrom@1460:     public static void processOptions(Context context,
duke@1:                                        JavaFileManager fileManager,
duke@1:                                        Iterable<String> options)
duke@1:     {
duke@1:         if (options == null)
duke@1:             return;
duke@1: 
jjg@1157:         final Options optionTable = Options.instance(context);
jjg@1136:         Log log = Log.instance(context);
duke@1: 
jjg@1157:         Option[] recognizedOptions =
jjg@1157:                 Option.getJavacToolOptions().toArray(new Option[0]);
jjg@1157:         OptionHelper optionHelper = new GrumpyHelper(log) {
jjg@1157:             @Override
jjg@1157:             public String get(Option option) {
jjg@1157:                 return optionTable.get(option.getText());
jjg@1157:             }
jjg@1157: 
jjg@1157:             @Override
jjg@1157:             public void put(String name, String value) {
jjg@1157:                 optionTable.put(name, value);
jjg@1157:             }
jjg@1157: 
jjg@1157:             @Override
jjg@1157:             public void remove(String name) {
jjg@1157:                 optionTable.remove(name);
jjg@1157:             }
jjg@1157:         };
jjg@1157: 
duke@1:         Iterator<String> flags = options.iterator();
duke@1:         while (flags.hasNext()) {
duke@1:             String flag = flags.next();
duke@1:             int j;
duke@1:             for (j=0; j<recognizedOptions.length; j++)
duke@1:                 if (recognizedOptions[j].matches(flag))
duke@1:                     break;
duke@1: 
duke@1:             if (j == recognizedOptions.length) {
duke@1:                 if (fileManager.handleOption(flag, flags)) {
duke@1:                     continue;
duke@1:                 } else {
jjg@1136:                     String msg = log.localize(PrefixKind.JAVAC, "err.invalid.flag", flag);
duke@1:                     throw new IllegalArgumentException(msg);
duke@1:                 }
duke@1:             }
duke@1: 
jjg@1157:             Option option = recognizedOptions[j];
duke@1:             if (option.hasArg()) {
duke@1:                 if (!flags.hasNext()) {
jjg@1136:                     String msg = log.localize(PrefixKind.JAVAC, "err.req.arg", flag);
duke@1:                     throw new IllegalArgumentException(msg);
duke@1:                 }
duke@1:                 String operand = flags.next();
jjg@1157:                 if (option.process(optionHelper, flag, operand))
duke@1:                     // should not happen as the GrumpyHelper will throw exceptions
duke@1:                     // in case of errors
duke@1:                     throw new IllegalArgumentException(flag + " " + operand);
duke@1:             } else {
jjg@1157:                 if (option.process(optionHelper, flag))
duke@1:                     // should not happen as the GrumpyHelper will throw exceptions
duke@1:                     // in case of errors
duke@1:                     throw new IllegalArgumentException(flag);
duke@1:             }
duke@1:         }
jjg@1135: 
jjg@1135:         optionTable.notifyListeners();
duke@1:     }
duke@1: 
duke@1:     public int run(InputStream in, OutputStream out, OutputStream err, String... arguments) {
duke@1:         if (err == null)
duke@1:             err = System.err;
duke@1:         for (String argument : arguments)
duke@1:             argument.getClass(); // null check
duke@1:         return com.sun.tools.javac.Main.compile(arguments, new PrintWriter(err, true));
duke@1:     }
duke@1: 
duke@1:     public Set<SourceVersion> getSourceVersions() {
duke@1:         return Collections.unmodifiableSet(EnumSet.range(SourceVersion.RELEASE_3,
duke@1:                                                          SourceVersion.latest()));
duke@1:     }
duke@1: 
duke@1:     public int isSupportedOption(String option) {
jjg@1157:         Set<Option> recognizedOptions = Option.getJavacToolOptions();
jjg@1157:         for (Option o : recognizedOptions) {
duke@1:             if (o.matches(option))
duke@1:                 return o.hasArg() ? 1 : 0;
duke@1:         }
duke@1:         return -1;
duke@1:     }
duke@1: 
duke@1: }