/*
* Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
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*/
package com.sun.tools.javac.api;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.Writer;
import java.nio.charset.Charset;
import java.util.Collections;
import java.util.EnumSet;
import java.util.Iterator;
import java.util.Locale;
import java.util.Set;
import javax.lang.model.SourceVersion;
import javax.tools.*;
import com.sun.source.util.JavacTask;
import com.sun.tools.javac.file.JavacFileManager;
import com.sun.tools.javac.main.Main;
import com.sun.tools.javac.main.Option;
import com.sun.tools.javac.main.OptionHelper;
import com.sun.tools.javac.main.OptionHelper.GrumpyHelper;
import com.sun.tools.javac.util.ClientCodeException;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.Log;
import com.sun.tools.javac.util.Log.PrefixKind;
import com.sun.tools.javac.util.Options;
/**
* TODO: describe com.sun.tools.javac.api.Tool
*
* <p><b>This is NOT part of any supported API.
* If you write code that depends on this, you do so at your own
* risk. This code and its internal interfaces are subject to change
* or deletion without notice.</b></p>
*
* @author Peter von der Ah\u00e9
*/
public final class JavacTool implements JavaCompiler {
/**
* Constructor used by service provider mechanism. The recommended way to
* obtain an instance of this class is by using {@link #create} or the
* service provider mechanism.
* @see javax.tools.JavaCompiler
* @see javax.tools.ToolProvider
* @see #create
*/
@Deprecated
public JavacTool() {}
/**
* Static factory method for creating new instances of this tool.
* @return new instance of this tool
*/
public static JavacTool create() {
return new JavacTool();
}
public JavacFileManager getStandardFileManager(
DiagnosticListener<? super JavaFileObject> diagnosticListener,
Locale locale,
Charset charset) {
Context context = new Context();
context.put(Locale.class, locale);
if (diagnosticListener != null)
context.put(DiagnosticListener.class, diagnosticListener);
PrintWriter pw = (charset == null)
? new PrintWriter(System.err, true)
: new PrintWriter(new OutputStreamWriter(System.err, charset), true);
context.put(Log.outKey, pw);
return new JavacFileManager(context, true, charset);
}
@Override
public JavacTask getTask(Writer out,
JavaFileManager fileManager,
DiagnosticListener<? super JavaFileObject> diagnosticListener,
Iterable<String> options,
Iterable<String> classes,
Iterable<? extends JavaFileObject> compilationUnits) {
Context context = new Context();
return getTask(out, fileManager, diagnosticListener,
options, classes, compilationUnits,
context);
}
public JavacTask getTask(Writer out,
JavaFileManager fileManager,
DiagnosticListener<? super JavaFileObject> diagnosticListener,
Iterable<String> options,
Iterable<String> classes,
Iterable<? extends JavaFileObject> compilationUnits,
Context context)
{
try {
ClientCodeWrapper ccw = ClientCodeWrapper.instance(context);
if (options != null)
for (String option : options)
option.getClass(); // null check
if (classes != null) {
for (String cls : classes)
if (!SourceVersion.isName(cls)) // implicit null check
throw new IllegalArgumentException("Not a valid class name: " + cls);
}
if (compilationUnits != null) {
compilationUnits = ccw.wrapJavaFileObjects(compilationUnits); // implicit null check
for (JavaFileObject cu : compilationUnits) {
if (cu.getKind() != JavaFileObject.Kind.SOURCE) {
String kindMsg = "Compilation unit is not of SOURCE kind: "
+ "\"" + cu.getName() + "\"";
throw new IllegalArgumentException(kindMsg);
}
}
}
if (diagnosticListener != null)
context.put(DiagnosticListener.class, ccw.wrap(diagnosticListener));
if (out == null)
context.put(Log.outKey, new PrintWriter(System.err, true));
else
context.put(Log.outKey, new PrintWriter(out, true));
if (fileManager == null)
fileManager = getStandardFileManager(diagnosticListener, null, null);
fileManager = ccw.wrap(fileManager);
context.put(JavaFileManager.class, fileManager);
processOptions(context, fileManager, options);
Main compiler = new Main("javacTask", context.get(Log.outKey));
return new JavacTaskImpl(compiler, options, context, classes, compilationUnits);
} catch (ClientCodeException ex) {
throw new RuntimeException(ex.getCause());
}
}
public static void processOptions(Context context,
JavaFileManager fileManager,
Iterable<String> options)
{
if (options == null)
return;
final Options optionTable = Options.instance(context);
Log log = Log.instance(context);
Option[] recognizedOptions =
Option.getJavacToolOptions().toArray(new Option[0]);
OptionHelper optionHelper = new GrumpyHelper(log) {
@Override
public String get(Option option) {
return optionTable.get(option.getText());
}
@Override
public void put(String name, String value) {
optionTable.put(name, value);
}
@Override
public void remove(String name) {
optionTable.remove(name);
}
};
Iterator<String> flags = options.iterator();
while (flags.hasNext()) {
String flag = flags.next();
int j;
for (j=0; j<recognizedOptions.length; j++)
if (recognizedOptions[j].matches(flag))
break;
if (j == recognizedOptions.length) {
if (fileManager.handleOption(flag, flags)) {
continue;
} else {
String msg = log.localize(PrefixKind.JAVAC, "err.invalid.flag", flag);
throw new IllegalArgumentException(msg);
}
}
Option option = recognizedOptions[j];
if (option.hasArg()) {
if (!flags.hasNext()) {
String msg = log.localize(PrefixKind.JAVAC, "err.req.arg", flag);
throw new IllegalArgumentException(msg);
}
String operand = flags.next();
if (option.process(optionHelper, flag, operand))
// should not happen as the GrumpyHelper will throw exceptions
// in case of errors
throw new IllegalArgumentException(flag + " " + operand);
} else {
if (option.process(optionHelper, flag))
// should not happen as the GrumpyHelper will throw exceptions
// in case of errors
throw new IllegalArgumentException(flag);
}
}
optionTable.notifyListeners();
}
public int run(InputStream in, OutputStream out, OutputStream err, String... arguments) {
if (err == null)
err = System.err;
for (String argument : arguments)
argument.getClass(); // null check
return com.sun.tools.javac.Main.compile(arguments, new PrintWriter(err, true));
}
public Set<SourceVersion> getSourceVersions() {
return Collections.unmodifiableSet(EnumSet.range(SourceVersion.RELEASE_3,
SourceVersion.latest()));
}
public int isSupportedOption(String option) {
Set<Option> recognizedOptions = Option.getJavacToolOptions();
for (Option o : recognizedOptions) {
if (o.matches(option))
return o.hasArg() ? 1 : 0;
}
return -1;
}
}