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6906175: bridge JSR199 and JSR 203 APIs

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Reviewed-by: darcy, alanb
This commit is contained in:
Jonathan Gibbons 2009-12-11 14:26:27 -08:00
parent 82e58a7b13
commit 75f1feee86
13 changed files with 1570 additions and 313 deletions
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19
langtools/make/build.properties
View File

@ -149,11 +149,26 @@ apt.tests = \
#
# The following files require the import JDK to be available
require.import.jdk.files =
require.import.jdk.files = \
com/sun/tools/javac/nio/*.java
# The following files in the import jdk source directory are required
# in order to compile the files defined in ${require.import.jdk.files}
import.jdk.stub.files =
#
# For NIO, the list of stub files is defined by the contents of the primary
# API packages, together with such types that may be required in order to
# compile the stubs. Some of these dependencies would go away if the stub
# generator were to be improved -- e.g. by removing unnecessary imports.
#
import.jdk.stub.files = \
java/io/File.java \
java/nio/file/**.java \
java/nio/file/attribute/**.java \
java/nio/file/spi/**.java \
java/nio/channels/AsynchronousChannel.java \
java/nio/channels/AsynchronousFileChannel.java \
java/nio/channels/CompletionHandler.java \
java/nio/channels/SeekableByteChannel.java
# The following value is used by the main jtreg target.
# An empty value means all tests

6
langtools/make/build.xml
View File

@ -98,7 +98,7 @@
import.jdk should be unset, or set to jdk home (to use rt.jar)
or to jdk repo (to use src/share/classes).
Based on the value, if any, set up default values for javac's sourcepath,
classpath and bootclasspath. Note: the default values are overridden
classpath and bootclasspath. Note: the default values are overridden
in the build-bootstrap-classes macro. -->
<available property="import.jdk.src.dir" value="${import.jdk}/src/share/classes"
@ -552,8 +552,8 @@
<compilerarg line="${javac.version.opt}"/>
<compilerarg line="${javac.lint.opts}"/>
</javac>
<copy todir="@{classes.dir}">
<fileset dir="${src.classes.dir}" includes="@{includes}">
<copy todir="@{classes.dir}" includeemptydirs="false">
<fileset dir="${src.classes.dir}" includes="@{includes}" excludes="@{excludes}">
<exclude name="**/*.java"/>
<exclude name="**/*.properties"/>
<exclude name="**/*-template"/>

11
langtools/src/share/classes/com/sun/tools/javac/file/BaseFileObject.java
View File

@ -39,6 +39,8 @@ import javax.tools.JavaFileObject;
import static javax.tools.JavaFileObject.Kind.*;
import com.sun.tools.javac.util.BaseFileManager;
/**
* <p><b>This is NOT part of any API supported by Sun Microsystems.
* If you write code that depends on this, you do so at your own risk.
@ -74,14 +76,7 @@ public abstract class BaseFileObject implements JavaFileObject {
protected abstract String inferBinaryName(Iterable<? extends File> path);
protected static JavaFileObject.Kind getKind(String filename) {
if (filename.endsWith(CLASS.extension))
return CLASS;
else if (filename.endsWith(SOURCE.extension))
return SOURCE;
else if (filename.endsWith(HTML.extension))
return HTML;
else
return OTHER;
return BaseFileManager.getKind(filename);
}
protected static String removeExtension(String fileName) {

302
langtools/src/share/classes/com/sun/tools/javac/file/JavacFileManager.java
View File

@ -26,29 +26,16 @@
package com.sun.tools.javac.file;
import java.io.ByteArrayOutputStream;
import java.io.Closeable;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStreamWriter;
import java.lang.ref.SoftReference;
import java.lang.reflect.Constructor;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLClassLoader;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.channels.FileChannel;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CoderResult;
import java.nio.charset.CodingErrorAction;
import java.nio.charset.IllegalCharsetNameException;
import java.nio.charset.UnsupportedCharsetException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
@ -66,18 +53,13 @@ import javax.tools.JavaFileManager;
import javax.tools.JavaFileObject;
import javax.tools.StandardJavaFileManager;
import com.sun.tools.javac.code.Source;
import com.sun.tools.javac.file.RelativePath.RelativeFile;
import com.sun.tools.javac.file.RelativePath.RelativeDirectory;
import com.sun.tools.javac.main.JavacOption;
import com.sun.tools.javac.main.OptionName;
import com.sun.tools.javac.main.RecognizedOptions;
import com.sun.tools.javac.util.BaseFileManager;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.JCDiagnostic.SimpleDiagnosticPosition;
import com.sun.tools.javac.util.List;
import com.sun.tools.javac.util.ListBuffer;
import com.sun.tools.javac.util.Log;
import com.sun.tools.javac.util.Options;
import static javax.tools.StandardLocation.*;
import static com.sun.tools.javac.main.OptionName.*;
@ -91,7 +73,7 @@ import static com.sun.tools.javac.main.OptionName.*;
* This code and its internal interfaces are subject to change or
* deletion without notice.</b>
*/
public class JavacFileManager implements StandardJavaFileManager {
public class JavacFileManager extends BaseFileManager implements StandardJavaFileManager {
boolean useZipFileIndex;
@ -102,17 +84,10 @@ public class JavacFileManager implements StandardJavaFileManager {
return buffer.toString().toCharArray();
}
/**
* The log to be used for error reporting.
*/
protected Log log;
/** Encapsulates knowledge of paths
*/
private Paths paths;
private Options options;
private FSInfo fsInfo;
private final File uninited = new File("U N I N I T E D");
@ -134,12 +109,6 @@ public class JavacFileManager implements StandardJavaFileManager {
protected boolean mmappedIO;
protected boolean ignoreSymbolFile;
protected String classLoaderClass;
/**
* User provided charset (through javax.tools).
*/
protected Charset charset;
/**
* Register a Context.Factory to create a JavacFileManager.
@ -157,18 +126,18 @@ public class JavacFileManager implements StandardJavaFileManager {
* it as the JavaFileManager for that context.
*/
public JavacFileManager(Context context, boolean register, Charset charset) {
super(charset);
if (register)
context.put(JavaFileManager.class, this);
byteBufferCache = new ByteBufferCache();
this.charset = charset;
setContext(context);
}
/**
* Set the context for JavacFileManager.
*/
@Override
public void setContext(Context context) {
log = Log.instance(context);
super.setContext(context);
if (paths == null) {
paths = Paths.instance(context);
} else {
@ -177,14 +146,12 @@ public class JavacFileManager implements StandardJavaFileManager {
paths.setContext(context);
}
options = Options.instance(context);
fsInfo = FSInfo.instance(context);
useZipFileIndex = System.getProperty("useJavaUtilZip") == null;// TODO: options.get("useJavaUtilZip") == null;
mmappedIO = options.get("mmappedIO") != null;
ignoreSymbolFile = options.get("ignore.symbol.file") != null;
classLoaderClass = options.get("procloader");
}
public JavaFileObject getFileForInput(String name) {
@ -214,17 +181,6 @@ public class JavacFileManager implements StandardJavaFileManager {
return getJavaFileObjectsFromStrings(Arrays.asList(nullCheck(names)));
}
protected JavaFileObject.Kind getKind(String extension) {
if (extension.equals(JavaFileObject.Kind.CLASS.extension))
return JavaFileObject.Kind.CLASS;
else if (extension.equals(JavaFileObject.Kind.SOURCE.extension))
return JavaFileObject.Kind.SOURCE;
else if (extension.equals(JavaFileObject.Kind.HTML.extension))
return JavaFileObject.Kind.HTML;
else
return JavaFileObject.Kind.OTHER;
}
private static boolean isValidName(String name) {
// Arguably, isValidName should reject keywords (such as in SourceVersion.isName() ),
// but the set of keywords depends on the source level, and we don't want
@ -359,9 +315,7 @@ public class JavacFileManager implements StandardJavaFileManager {
}
private boolean isValidFile(String s, Set<JavaFileObject.Kind> fileKinds) {
int lastDot = s.lastIndexOf(".");
String extn = (lastDot == -1 ? s : s.substring(lastDot));
JavaFileObject.Kind kind = getKind(extn);
JavaFileObject.Kind kind = getKind(s);
return fileKinds.contains(kind);
}
@ -564,18 +518,6 @@ public class JavacFileManager implements StandardJavaFileManager {
}
}
CharBuffer getCachedContent(JavaFileObject file) {
SoftReference<CharBuffer> r = contentCache.get(file);
return (r == null ? null : r.get());
}
void cache(JavaFileObject file, CharBuffer cb) {
contentCache.put(file, new SoftReference<CharBuffer>(cb));
}
private final Map<JavaFileObject, SoftReference<CharBuffer>> contentCache
= new HashMap<JavaFileObject, SoftReference<CharBuffer>>();
private String defaultEncodingName;
private String getDefaultEncodingName() {
if (defaultEncodingName == null) {
@ -585,161 +527,6 @@ public class JavacFileManager implements StandardJavaFileManager {
return defaultEncodingName;
}
protected String getEncodingName() {
String encName = options.get(OptionName.ENCODING);
if (encName == null)
return getDefaultEncodingName();
else
return encName;
}
protected Source getSource() {
String sourceName = options.get(OptionName.SOURCE);
Source source = null;
if (sourceName != null)
source = Source.lookup(sourceName);
return (source != null ? source : Source.DEFAULT);
}
/**
* Make a byte buffer from an input stream.
*/
ByteBuffer makeByteBuffer(InputStream in)
throws IOException {
int limit = in.available();
if (mmappedIO && in instanceof FileInputStream) {
// Experimental memory mapped I/O
FileInputStream fin = (FileInputStream)in;
return fin.getChannel().map(FileChannel.MapMode.READ_ONLY, 0, limit);
}
if (limit < 1024) limit = 1024;
ByteBuffer result = byteBufferCache.get(limit);
int position = 0;
while (in.available() != 0) {
if (position >= limit)
// expand buffer
result = ByteBuffer.
allocate(limit <<= 1).
put((ByteBuffer)result.flip());
int count = in.read(result.array(),
position,
limit - position);
if (count < 0) break;
result.position(position += count);
}
return (ByteBuffer)result.flip();
}
void recycleByteBuffer(ByteBuffer bb) {
byteBufferCache.put(bb);
}
/**
* A single-element cache of direct byte buffers.
*/
private static class ByteBufferCache {
private ByteBuffer cached;
ByteBuffer get(int capacity) {
if (capacity < 20480) capacity = 20480;
ByteBuffer result =
(cached != null && cached.capacity() >= capacity)
? (ByteBuffer)cached.clear()
: ByteBuffer.allocate(capacity + capacity>>1);
cached = null;
return result;
}
void put(ByteBuffer x) {
cached = x;
}
}
private final ByteBufferCache byteBufferCache;
CharsetDecoder getDecoder(String encodingName, boolean ignoreEncodingErrors) {
Charset cs = (this.charset == null)
? Charset.forName(encodingName)
: this.charset;
CharsetDecoder decoder = cs.newDecoder();
CodingErrorAction action;
if (ignoreEncodingErrors)
action = CodingErrorAction.REPLACE;
else
action = CodingErrorAction.REPORT;
return decoder
.onMalformedInput(action)
.onUnmappableCharacter(action);
}
/**
* Decode a ByteBuffer into a CharBuffer.
*/
CharBuffer decode(ByteBuffer inbuf, boolean ignoreEncodingErrors) {
String encodingName = getEncodingName();
CharsetDecoder decoder;
try {
decoder = getDecoder(encodingName, ignoreEncodingErrors);
} catch (IllegalCharsetNameException e) {
log.error("unsupported.encoding", encodingName);
return (CharBuffer)CharBuffer.allocate(1).flip();
} catch (UnsupportedCharsetException e) {
log.error("unsupported.encoding", encodingName);
return (CharBuffer)CharBuffer.allocate(1).flip();
}
// slightly overestimate the buffer size to avoid reallocation.
float factor =
decoder.averageCharsPerByte() * 0.8f +
decoder.maxCharsPerByte() * 0.2f;
CharBuffer dest = CharBuffer.
allocate(10 + (int)(inbuf.remaining()*factor));
while (true) {
CoderResult result = decoder.decode(inbuf, dest, true);
dest.flip();
if (result.isUnderflow()) { // done reading
// make sure there is at least one extra character
if (dest.limit() == dest.capacity()) {
dest = CharBuffer.allocate(dest.capacity()+1).put(dest);
dest.flip();
}
return dest;
} else if (result.isOverflow()) { // buffer too small; expand
int newCapacity =
10 + dest.capacity() +
(int)(inbuf.remaining()*decoder.maxCharsPerByte());
dest = CharBuffer.allocate(newCapacity).put(dest);
} else if (result.isMalformed() || result.isUnmappable()) {
// bad character in input
// report coding error (warn only pre 1.5)
if (!getSource().allowEncodingErrors()) {
log.error(new SimpleDiagnosticPosition(dest.limit()),
"illegal.char.for.encoding",
charset == null ? encodingName : charset.name());
} else {
log.warning(new SimpleDiagnosticPosition(dest.limit()),
"illegal.char.for.encoding",
charset == null ? encodingName : charset.name());
}
// skip past the coding error
inbuf.position(inbuf.position() + result.length());
// undo the flip() to prepare the output buffer
// for more translation
dest.position(dest.limit());
dest.limit(dest.capacity());
dest.put((char)0xfffd); // backward compatible
} else {
throw new AssertionError(result);
}
}
// unreached
}
public ClassLoader getClassLoader(Location location) {
nullCheck(location);
Iterable<? extends File> path = getLocation(location);
@ -754,39 +541,7 @@ public class JavacFileManager implements StandardJavaFileManager {
}
}
URL[] urls = lb.toArray(new URL[lb.size()]);
ClassLoader thisClassLoader = getClass().getClassLoader();
// Bug: 6558476
// Ideally, ClassLoader should be Closeable, but before JDK7 it is not.
// On older versions, try the following, to get a closeable classloader.
// 1: Allow client to specify the class to use via hidden option
if (classLoaderClass != null) {
try {
Class<? extends ClassLoader> loader =
Class.forName(classLoaderClass).asSubclass(ClassLoader.class);
Class<?>[] constrArgTypes = { URL[].class, ClassLoader.class };
Constructor<? extends ClassLoader> constr = loader.getConstructor(constrArgTypes);
return constr.newInstance(new Object[] { urls, thisClassLoader });
} catch (Throwable t) {
// ignore errors loading user-provided class loader, fall through
}
}
// 2: If URLClassLoader implements Closeable, use that.
if (Closeable.class.isAssignableFrom(URLClassLoader.class))
return new URLClassLoader(urls, thisClassLoader);
// 3: Try using private reflection-based CloseableURLClassLoader
try {
return new CloseableURLClassLoader(urls, thisClassLoader);
} catch (Throwable t) {
// ignore errors loading workaround class loader, fall through
}
// 4: If all else fails, use plain old standard URLClassLoader
return new URLClassLoader(urls, thisClassLoader);
return getClassLoader(lb.toArray(new URL[lb.size()]));
}
public Iterable<JavaFileObject> list(Location location,
@ -836,38 +591,6 @@ public class JavacFileManager implements StandardJavaFileManager {
return a.equals(b);
}
public boolean handleOption(String current, Iterator<String> remaining) {
for (JavacOption o: javacFileManagerOptions) {
if (o.matches(current)) {
if (o.hasArg()) {
if (remaining.hasNext()) {
if (!o.process(options, current, remaining.next()))
return true;
}
} else {
if (!o.process(options, current))
return true;
}
// operand missing, or process returned false
throw new IllegalArgumentException(current);
}
}
return false;
}
// where
private static JavacOption[] javacFileManagerOptions =
RecognizedOptions.getJavacFileManagerOptions(
new RecognizedOptions.GrumpyHelper());
public int isSupportedOption(String option) {
for (JavacOption o : javacFileManagerOptions) {
if (o.matches(option))
return o.hasArg() ? 1 : 0;
}
return -1;
}
public boolean hasLocation(Location location) {
return getLocation(location) != null;
}
@ -1115,15 +838,4 @@ public class JavacFileManager implements StandardJavaFileManager {
}
throw new IllegalArgumentException("Invalid relative path: " + file);
}
private static <T> T nullCheck(T o) {
o.getClass(); // null check
return o;
}
private static <T> Iterable<T> nullCheck(Iterable<T> it) {
for (T t : it)
t.getClass(); // null check
return it;
}
}

2
langtools/src/share/classes/com/sun/tools/javac/file/Paths.java
View File

@ -66,7 +66,7 @@ public class Paths {
* @param context the context
* @return the Paths instance for this context
*/
static Paths instance(Context context) {
public static Paths instance(Context context) {
Paths instance = context.get(pathsKey);
if (instance == null)
instance = new Paths(context);

543
langtools/src/share/classes/com/sun/tools/javac/nio/JavacPathFileManager.java Normal file
View File

@ -0,0 +1,543 @@
/*
* Copyright 2009 Sun Microsystems, Inc. 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. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package com.sun.tools.javac.nio;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.FileVisitOption;
import java.nio.file.FileVisitResult;
import java.nio.file.Path;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.Attributes;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;
import javax.lang.model.SourceVersion;
import javax.tools.FileObject;
import javax.tools.JavaFileManager;
import javax.tools.JavaFileObject;
import javax.tools.JavaFileObject.Kind;
import javax.tools.StandardLocation;
import static java.nio.file.FileVisitOption.*;
import static javax.tools.StandardLocation.*;
import com.sun.tools.javac.file.Paths;
import com.sun.tools.javac.util.BaseFileManager;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.List;
import com.sun.tools.javac.util.ListBuffer;
import static com.sun.tools.javac.main.OptionName.*;
// NOTE the imports carefully for this compilation unit.
//
// Path: java.nio.file.Path -- the new NIO type for which this file manager exists
//
// Paths: com.sun.tools.javac.file.Paths -- legacy javac type for handling path options
// The other Paths (java.nio.file.Paths) is not used
// NOTE this and related classes depend on new API in JDK 7.
// This requires special handling while bootstrapping the JDK build,
// when these classes might not yet have been compiled. To workaround
// this, the build arranges to make stubs of these classes available
// when compiling this and related classes. The set of stub files
// is specified in make/build.properties.
/**
* Implementation of PathFileManager: a JavaFileManager based on the use
* of java.nio.file.Path.
*
* <p>Just as a Path is somewhat analagous to a File, so too is this
* JavacPathFileManager analogous to JavacFileManager, as it relates to the
* support of FileObjects based on File objects (i.e. just RegularFileObject,
* not ZipFileObject and its variants.)
*
* <p>The default values for the standard locations supported by this file
* manager are the same as the default values provided by JavacFileManager --
* i.e. as determined by the javac.file.Paths class. To override these values,
* call {@link #setLocation}.
*
* <p>To reduce confusion with Path objects, the locations such as "class path",
* "source path", etc, are generically referred to here as "search paths".
*
* <p><b>This is NOT part of any API supported by Sun Microsystems. 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>
*/
public class JavacPathFileManager extends BaseFileManager implements PathFileManager {
protected FileSystem defaultFileSystem;
/**
* Create a JavacPathFileManager using a given context, optionally registering
* it as the JavaFileManager for that context.
*/
public JavacPathFileManager(Context context, boolean register, Charset charset) {
super(charset);
if (register)
context.put(JavaFileManager.class, this);
pathsForLocation = new HashMap<Location, PathsForLocation>();
fileSystems = new HashMap<Path,FileSystem>();
setContext(context);
}
/**
* Set the context for JavacPathFileManager.
*/
@Override
protected void setContext(Context context) {
super.setContext(context);
searchPaths = Paths.instance(context);
}
@Override
public FileSystem getDefaultFileSystem() {
if (defaultFileSystem == null)
defaultFileSystem = FileSystems.getDefault();
return defaultFileSystem;
}
@Override
public void setDefaultFileSystem(FileSystem fs) {
defaultFileSystem = fs;
}
@Override
public void flush() throws IOException {
contentCache.clear();
}
@Override
public void close() throws IOException {
for (FileSystem fs: fileSystems.values())
fs.close();
}
@Override
public ClassLoader getClassLoader(Location location) {
nullCheck(location);
Iterable<? extends Path> path = getLocation(location);
if (path == null)
return null;
ListBuffer<URL> lb = new ListBuffer<URL>();
for (Path p: path) {
try {
lb.append(p.toUri().toURL());
} catch (MalformedURLException e) {
throw new AssertionError(e);
}
}
return getClassLoader(lb.toArray(new URL[lb.size()]));
}
// <editor-fold defaultstate="collapsed" desc="Location handling">
public boolean hasLocation(Location location) {
return (getLocation(location) != null);
}
public Iterable<? extends Path> getLocation(Location location) {
nullCheck(location);
lazyInitSearchPaths();
PathsForLocation path = pathsForLocation.get(location);
if (path == null && !pathsForLocation.containsKey(location)) {
setDefaultForLocation(location);
path = pathsForLocation.get(location);
}
return path;
}
private Path getOutputLocation(Location location) {
Iterable<? extends Path> paths = getLocation(location);
return (paths == null ? null : paths.iterator().next());
}
public void setLocation(Location location, Iterable<? extends Path> searchPath)
throws IOException
{
nullCheck(location);
lazyInitSearchPaths();
if (searchPath == null) {
setDefaultForLocation(location);
} else {
if (location.isOutputLocation())
checkOutputPath(searchPath);
PathsForLocation pl = new PathsForLocation();
for (Path p: searchPath)
pl.add(p); // TODO -Xlint:path warn if path not found
pathsForLocation.put(location, pl);
}
}
private void checkOutputPath(Iterable<? extends Path> searchPath) throws IOException {
Iterator<? extends Path> pathIter = searchPath.iterator();
if (!pathIter.hasNext())
throw new IllegalArgumentException("empty path for directory");
Path path = pathIter.next();
if (pathIter.hasNext())
throw new IllegalArgumentException("path too long for directory");
if (!path.exists())
throw new FileNotFoundException(path + ": does not exist");
else if (!isDirectory(path))
throw new IOException(path + ": not a directory");
}
private void setDefaultForLocation(Location locn) {
Collection<File> files = null;
if (locn instanceof StandardLocation) {
switch ((StandardLocation) locn) {
case CLASS_PATH:
files = searchPaths.userClassPath();
break;
case PLATFORM_CLASS_PATH:
files = searchPaths.bootClassPath();
break;
case SOURCE_PATH:
files = searchPaths.sourcePath();
break;
case CLASS_OUTPUT: {
String arg = options.get(D);
files = (arg == null ? null : Collections.singleton(new File(arg)));
break;
}
case SOURCE_OUTPUT: {
String arg = options.get(S);
files = (arg == null ? null : Collections.singleton(new File(arg)));
break;
}
}
}
PathsForLocation pl = new PathsForLocation();
if (files != null) {
for (File f: files)
pl.add(f.toPath());
}
pathsForLocation.put(locn, pl);
}
private void lazyInitSearchPaths() {
if (!inited) {
setDefaultForLocation(PLATFORM_CLASS_PATH);
setDefaultForLocation(CLASS_PATH);
setDefaultForLocation(SOURCE_PATH);
inited = true;
}
}
// where
private boolean inited = false;
private Map<Location, PathsForLocation> pathsForLocation;
private Paths searchPaths;
private static class PathsForLocation extends LinkedHashSet<Path> {
private static final long serialVersionUID = 6788510222394486733L;
}
// </editor-fold>
// <editor-fold defaultstate="collapsed" desc="FileObject handling">
@Override
public Path getPath(FileObject fo) {
nullCheck(fo);
if (!(fo instanceof PathFileObject))
throw new IllegalArgumentException();
return ((PathFileObject) fo).getPath();
}
@Override
public boolean isSameFile(FileObject a, FileObject b) {
nullCheck(a);
nullCheck(b);
if (!(a instanceof PathFileObject))
throw new IllegalArgumentException("Not supported: " + a);
if (!(b instanceof PathFileObject))
throw new IllegalArgumentException("Not supported: " + b);
return ((PathFileObject) a).isSameFile((PathFileObject) b);
}
@Override
public Iterable<JavaFileObject> list(Location location,
String packageName, Set<Kind> kinds, boolean recurse)
throws IOException {
// validatePackageName(packageName);
nullCheck(packageName);
nullCheck(kinds);
Iterable<? extends Path> paths = getLocation(location);
if (paths == null)
return List.nil();
ListBuffer<JavaFileObject> results = new ListBuffer<JavaFileObject>();
for (Path path : paths)
list(path, packageName, kinds, recurse, results);
return results.toList();
}
private void list(Path path, String packageName, final Set<Kind> kinds,
boolean recurse, final ListBuffer<JavaFileObject> results)
throws IOException {
if (!path.exists())
return;
final Path pathDir;
if (isDirectory(path))
pathDir = path;
else {
FileSystem fs = getFileSystem(path);
if (fs == null)
return;
pathDir = fs.getRootDirectories().iterator().next();
}
String sep = path.getFileSystem().getSeparator();
Path packageDir = packageName.isEmpty() ? pathDir
: pathDir.resolve(packageName.replace(".", sep));
if (!packageDir.exists())
return;
/* Alternate impl of list, superceded by use of Files.walkFileTree */
// Deque<Path> queue = new LinkedList<Path>();
// queue.add(packageDir);
//
// Path dir;
// while ((dir = queue.poll()) != null) {
// DirectoryStream<Path> ds = dir.newDirectoryStream();
// try {
// for (Path p: ds) {
// String name = p.getName().toString();
// if (isDirectory(p)) {
// if (recurse && SourceVersion.isIdentifier(name)) {
// queue.add(p);
// }
// } else {
// if (kinds.contains(getKind(name))) {
// JavaFileObject fe =
// PathFileObject.createDirectoryPathFileObject(this, p, pathDir);
// results.append(fe);
// }
// }
// }
// } finally {
// ds.close();
// }
// }
int maxDepth = (recurse ? Integer.MAX_VALUE : 1);
Set<FileVisitOption> opts = EnumSet.of(DETECT_CYCLES, FOLLOW_LINKS);
Files.walkFileTree(packageDir, opts, maxDepth,
new SimpleFileVisitor<Path>() {
@Override
public FileVisitResult preVisitDirectory(Path dir) {
if (SourceVersion.isIdentifier(dir.getName().toString())) // JSR 292?
return FileVisitResult.CONTINUE;
else
return FileVisitResult.SKIP_SUBTREE;
}
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) {
if (attrs.isRegularFile() && kinds.contains(getKind(file.getName().toString()))) {
JavaFileObject fe =
PathFileObject.createDirectoryPathFileObject(
JavacPathFileManager.this, file, pathDir);
results.append(fe);
}
return FileVisitResult.CONTINUE;
}
});
}
@Override
public Iterable<? extends JavaFileObject> getJavaFileObjectsFromPaths(
Iterable<? extends Path> paths) {
ArrayList<PathFileObject> result;
if (paths instanceof Collection<?>)
result = new ArrayList<PathFileObject>(((Collection<?>)paths).size());
else
result = new ArrayList<PathFileObject>();
for (Path p: paths)
result.add(PathFileObject.createSimplePathFileObject(this, nullCheck(p)));
return result;
}
@Override
public Iterable<? extends JavaFileObject> getJavaFileObjects(Path... paths) {
return getJavaFileObjectsFromPaths(Arrays.asList(nullCheck(paths)));
}
@Override
public JavaFileObject getJavaFileForInput(Location location,
String className, Kind kind) throws IOException {
return getFileForInput(location, getRelativePath(className, kind));
}
@Override
public FileObject getFileForInput(Location location,
String packageName, String relativeName) throws IOException {
return getFileForInput(location, getRelativePath(packageName, relativeName));
}
private JavaFileObject getFileForInput(Location location, String relativePath)
throws IOException {
for (Path p: getLocation(location)) {
if (isDirectory(p)) {
Path f = resolve(p, relativePath);
if (f.exists())
return PathFileObject.createDirectoryPathFileObject(this, f, p);
} else {
FileSystem fs = getFileSystem(p);
if (fs != null) {
Path file = getPath(fs, relativePath);
if (file.exists())
return PathFileObject.createJarPathFileObject(this, file);
}
}
}
return null;
}
@Override
public JavaFileObject getJavaFileForOutput(Location location,
String className, Kind kind, FileObject sibling) throws IOException {
return getFileForOutput(location, getRelativePath(className, kind), sibling);
}
@Override
public FileObject getFileForOutput(Location location, String packageName,
String relativeName, FileObject sibling)
throws IOException {
return getFileForOutput(location, getRelativePath(packageName, relativeName), sibling);
}
private JavaFileObject getFileForOutput(Location location,
String relativePath, FileObject sibling) {
Path dir = getOutputLocation(location);
if (dir == null) {
if (location == CLASS_OUTPUT) {
Path siblingDir = null;
if (sibling != null && sibling instanceof PathFileObject) {
siblingDir = ((PathFileObject) sibling).getPath().getParent();
}
return PathFileObject.createSiblingPathFileObject(this,
siblingDir.resolve(getBaseName(relativePath)),
relativePath);
} else if (location == SOURCE_OUTPUT) {
dir = getOutputLocation(CLASS_OUTPUT);
}
}
Path file;
if (dir != null) {
file = resolve(dir, relativePath);
return PathFileObject.createDirectoryPathFileObject(this, file, dir);
} else {
file = getPath(getDefaultFileSystem(), relativePath);
return PathFileObject.createSimplePathFileObject(this, file);
}
}
@Override
public String inferBinaryName(Location location, JavaFileObject fo) {
nullCheck(fo);
// Need to match the path semantics of list(location, ...)
Iterable<? extends Path> paths = getLocation(location);
if (paths == null) {
return null;
}
if (!(fo instanceof PathFileObject))
throw new IllegalArgumentException(fo.getClass().getName());
return ((PathFileObject) fo).inferBinaryName(paths);
}
private FileSystem getFileSystem(Path p) throws IOException {
FileSystem fs = fileSystems.get(p);
if (fs == null) {
fs = FileSystems.newFileSystem(p, Collections.<String,Void>emptyMap(), null);
fileSystems.put(p, fs);
}
return fs;
}
private Map<Path,FileSystem> fileSystems;
// </editor-fold>
// <editor-fold defaultstate="collapsed" desc="Utility methods">
private static String getRelativePath(String className, Kind kind) {
return className.replace(".", "/") + kind.extension;
}
private static String getRelativePath(String packageName, String relativeName) {
return packageName.replace(".", "/") + relativeName;
}
private static String getBaseName(String relativePath) {
int lastSep = relativePath.lastIndexOf("/");
return relativePath.substring(lastSep + 1); // safe if "/" not found
}
private static boolean isDirectory(Path path) throws IOException {
BasicFileAttributes attrs = Attributes.readBasicFileAttributes(path);
return attrs.isDirectory();
}
private static Path getPath(FileSystem fs, String relativePath) {
return fs.getPath(relativePath.replace("/", fs.getSeparator()));
}
private static Path resolve(Path base, String relativePath) {
FileSystem fs = base.getFileSystem();
Path rp = fs.getPath(relativePath.replace("/", fs.getSeparator()));
return base.resolve(rp);
}
// </editor-fold>
}

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/*
* Copyright 2009 Sun Microsystems, Inc. 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. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package com.sun.tools.javac.nio;
import java.io.IOException;
import java.nio.file.FileSystem;
import java.nio.file.Path;
import javax.tools.FileObject;
import javax.tools.JavaFileManager;
import javax.tools.JavaFileObject;
/**
* File manager based on {@linkplain File java.nio.file.Path}.
*
* Eventually, this should be moved to javax.tools.
* Also, JavaCompiler might reasonably provide a method getPathFileManager,
* similar to {@link javax.tools.JavaCompiler#getStandardFileManager
* getStandardFileManager}. However, would need to be handled carefully
* as another forward reference from langtools to jdk.
*
* <p><b>This is NOT part of any API supported by Sun Microsystems. 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>
*/
public interface PathFileManager extends JavaFileManager {
/**
* Get the default file system used to create paths. If no value has been
* set, the default file system is {@link FileSystems#getDefault}.
*/
FileSystem getDefaultFileSystem();
/**
* Set the default file system used to create paths.
* @param fs the default file system used to create any new paths.
*/
void setDefaultFileSystem(FileSystem fs);
/**
* Get file objects representing the given files.
*
* @param paths a list of paths
* @return a list of file objects
* @throws IllegalArgumentException if the list of paths includes
* a directory
*/
Iterable<? extends JavaFileObject> getJavaFileObjectsFromPaths(
Iterable<? extends Path> paths);
/**
* Get file objects representing the given paths.
* Convenience method equivalent to:
*
* <pre>
* getJavaFileObjectsFromPaths({@linkplain java.util.Arrays#asList Arrays.asList}(paths))
* </pre>
*
* @param paths an array of paths
* @return a list of file objects
* @throws IllegalArgumentException if the array of files includes
* a directory
* @throws NullPointerException if the given array contains null
* elements
*/
Iterable<? extends JavaFileObject> getJavaFileObjects(Path... paths);
/**
* Return the Path for a file object that has been obtained from this
* file manager.
*
* @param fo A file object that has been obtained from this file manager.
* @return The underlying Path object.
* @throws IllegalArgumentException is the file object was not obtained from
* from this file manager.
*/
Path getPath(FileObject fo);
/**
* Get the search path associated with the given location.
*
* @param location a location
* @return a list of paths or {@code null} if this location has no
* associated search path
* @see #setLocation
*/
Iterable<? extends Path> getLocation(Location location);
/**
* Associate the given search path with the given location. Any
* previous value will be discarded.
*
* @param location a location
* @param searchPath a list of files, if {@code null} use the default
* search path for this location
* @see #getLocation
* @throws IllegalArgumentException if location is an output
* location and searchpath does not contain exactly one element
* @throws IOException if location is an output location and searchpath
* does not represent an existing directory
*/
void setLocation(Location location, Iterable<? extends Path> searchPath) throws IOException;
}

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/*
* Copyright 2009 Sun Microsystems, Inc. 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. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package com.sun.tools.javac.nio;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.Writer;
import java.net.URI;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.CharsetDecoder;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.attribute.Attributes;
import java.nio.file.attribute.BasicFileAttributes;
import javax.lang.model.element.Modifier;
import javax.lang.model.element.NestingKind;
import javax.tools.JavaFileObject;
import com.sun.tools.javac.util.BaseFileManager;
/**
* Implementation of JavaFileObject using java.nio.file API.
*
* <p>PathFileObjects are, for the most part, straightforward wrappers around
* Path objects. The primary complexity is the support for "inferBinaryName".
* This is left as an abstract method, implemented by each of a number of
* different factory methods, which compute the binary name based on
* information available at the time the file object is created.
*
* <p><b>This is NOT part of any API supported by Sun Microsystems. 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>
*/
abstract class PathFileObject implements JavaFileObject {
private JavacPathFileManager fileManager;
private Path path;
/**
* Create a PathFileObject within a directory, such that the binary name
* can be inferred from the relationship to the parent directory.
*/
static PathFileObject createDirectoryPathFileObject(JavacPathFileManager fileManager,
final Path path, final Path dir) {
return new PathFileObject(fileManager, path) {
@Override
String inferBinaryName(Iterable<? extends Path> paths) {
return toBinaryName(dir.relativize(path));
}
};
}
/**
* Create a PathFileObject in a file system such as a jar file, such that
* the binary name can be inferred from its position within the filesystem.
*/
static PathFileObject createJarPathFileObject(JavacPathFileManager fileManager,
final Path path) {
return new PathFileObject(fileManager, path) {
@Override
String inferBinaryName(Iterable<? extends Path> paths) {
return toBinaryName(path);
}
};
}
/**
* Create a PathFileObject whose binary name can be inferred from the
* relative path to a sibling.
*/
static PathFileObject createSiblingPathFileObject(JavacPathFileManager fileManager,
final Path path, final String relativePath) {
return new PathFileObject(fileManager, path) {
@Override
String inferBinaryName(Iterable<? extends Path> paths) {
return toBinaryName(relativePath, "/");
}
};
}
/**
* Create a PathFileObject whose binary name might be inferred from its
* position on a search path.
*/
static PathFileObject createSimplePathFileObject(JavacPathFileManager fileManager,
final Path path) {
return new PathFileObject(fileManager, path) {
@Override
String inferBinaryName(Iterable<? extends Path> paths) {
Path absPath = path.toAbsolutePath();
for (Path p: paths) {
Path ap = p.toAbsolutePath();
if (absPath.startsWith(ap)) {
try {
Path rp = ap.relativize(absPath);
if (rp != null) // maybe null if absPath same as ap
return toBinaryName(rp);
} catch (IllegalArgumentException e) {
// ignore this p if cannot relativize path to p
}
}
}
return null;
}
};
}
protected PathFileObject(JavacPathFileManager fileManager, Path path) {
fileManager.getClass(); // null check
path.getClass(); // null check
this.fileManager = fileManager;
this.path = path;
}
abstract String inferBinaryName(Iterable<? extends Path> paths);
/**
* Return the Path for this object.
* @return the Path for this object.
*/
Path getPath() {
return path;
}
@Override
public Kind getKind() {
return BaseFileManager.getKind(path.getName().toString());
}
@Override
public boolean isNameCompatible(String simpleName, Kind kind) {
simpleName.getClass();
// null check
if (kind == Kind.OTHER && getKind() != kind) {
return false;
}
String sn = simpleName + kind.extension;
String pn = path.getName().toString();
if (pn.equals(sn)) {
return true;
}
if (pn.equalsIgnoreCase(sn)) {
try {
// allow for Windows
return path.toRealPath(false).getName().toString().equals(sn);
} catch (IOException e) {
}
}
return false;
}
@Override
public NestingKind getNestingKind() {
return null;
}
@Override
public Modifier getAccessLevel() {
return null;
}
@Override
public URI toUri() {
return path.toUri();
}
@Override
public String getName() {
return path.toString();
}
@Override
public InputStream openInputStream() throws IOException {
return path.newInputStream();
}
@Override
public OutputStream openOutputStream() throws IOException {
ensureParentDirectoriesExist();
return path.newOutputStream();
}
@Override
public Reader openReader(boolean ignoreEncodingErrors) throws IOException {
CharsetDecoder decoder = fileManager.getDecoder(fileManager.getEncodingName(), ignoreEncodingErrors);
return new InputStreamReader(openInputStream(), decoder);
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException {
CharBuffer cb = fileManager.getCachedContent(this);
if (cb == null) {
InputStream in = openInputStream();
try {
ByteBuffer bb = fileManager.makeByteBuffer(in);
JavaFileObject prev = fileManager.log.useSource(this);
try {
cb = fileManager.decode(bb, ignoreEncodingErrors);
} finally {
fileManager.log.useSource(prev);
}
fileManager.recycleByteBuffer(bb);
if (!ignoreEncodingErrors) {
fileManager.cache(this, cb);
}
} finally {
in.close();
}
}
return cb;
}
@Override
public Writer openWriter() throws IOException {
ensureParentDirectoriesExist();
return new OutputStreamWriter(path.newOutputStream(), fileManager.getEncodingName());
}
@Override
public long getLastModified() {
try {
BasicFileAttributes attrs = Attributes.readBasicFileAttributes(path);
return attrs.lastModifiedTime().toMillis();
} catch (IOException e) {
return -1;
}
}
@Override
public boolean delete() {
try {
path.delete();
return true;
} catch (IOException e) {
return false;
}
}
public boolean isSameFile(PathFileObject other) {
try {
return path.isSameFile(other.path);
} catch (IOException e) {
return false;
}
}
@Override
public boolean equals(Object other) {
return (other instanceof PathFileObject && path.equals(((PathFileObject) other).path));
}
@Override
public int hashCode() {
return path.hashCode();
}
@Override
public String toString() {
return getClass().getSimpleName() + "[" + path + "]";
}
private void ensureParentDirectoriesExist() throws IOException {
Path parent = path.getParent();
if (parent != null)
Files.createDirectories(parent);
}
private long size() {
try {
BasicFileAttributes attrs = Attributes.readBasicFileAttributes(path);
return attrs.size();
} catch (IOException e) {
return -1;
}
}
protected static String toBinaryName(Path relativePath) {
return toBinaryName(relativePath.toString(),
relativePath.getFileSystem().getSeparator());
}
protected static String toBinaryName(String relativePath, String sep) {
return removeExtension(relativePath).replaceAll(sep, ".");
}
protected static String removeExtension(String fileName) {
int lastDot = fileName.lastIndexOf(".");
return (lastDot == -1 ? fileName : fileName.substring(0, lastDot));
}
}

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/*
* Copyright 2009 Sun Microsystems, Inc. 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. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package com.sun.tools.javac.util;
import com.sun.tools.javac.code.Source;
import com.sun.tools.javac.main.JavacOption;
import com.sun.tools.javac.main.OptionName;
import com.sun.tools.javac.main.RecognizedOptions;
import com.sun.tools.javac.util.JCDiagnostic.SimpleDiagnosticPosition;
import java.io.ByteArrayOutputStream;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStreamWriter;
import java.lang.ref.SoftReference;
import java.lang.reflect.Constructor;
import java.net.URL;
import java.net.URLClassLoader;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CoderResult;
import java.nio.charset.CodingErrorAction;
import java.nio.charset.IllegalCharsetNameException;
import java.nio.charset.UnsupportedCharsetException;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import javax.tools.JavaFileObject;
import javax.tools.JavaFileObject.Kind;
/**
* Utility methods for building a filemanager.
* There are no references here to file-system specific objects such as
* java.io.File or java.nio.file.Path.
*/
public class BaseFileManager {
protected BaseFileManager(Charset charset) {
this.charset = charset;
byteBufferCache = new ByteBufferCache();
}
/**
* Set the context for JavacPathFileManager.
*/
protected void setContext(Context context) {
log = Log.instance(context);
options = Options.instance(context);
classLoaderClass = options.get("procloader");
}
/**
* The log to be used for error reporting.
*/
public Log log;
/**
* User provided charset (through javax.tools).
*/
protected Charset charset;
protected Options options;
protected String classLoaderClass;
protected Source getSource() {
String sourceName = options.get(OptionName.SOURCE);
Source source = null;
if (sourceName != null)
source = Source.lookup(sourceName);
return (source != null ? source : Source.DEFAULT);
}
protected ClassLoader getClassLoader(URL[] urls) {
ClassLoader thisClassLoader = getClass().getClassLoader();
// Bug: 6558476
// Ideally, ClassLoader should be Closeable, but before JDK7 it is not.
// On older versions, try the following, to get a closeable classloader.
// 1: Allow client to specify the class to use via hidden option
if (classLoaderClass != null) {
try {
Class<? extends ClassLoader> loader =
Class.forName(classLoaderClass).asSubclass(ClassLoader.class);
Class<?>[] constrArgTypes = { URL[].class, ClassLoader.class };
Constructor<? extends ClassLoader> constr = loader.getConstructor(constrArgTypes);
return constr.newInstance(new Object[] { urls, thisClassLoader });
} catch (Throwable t) {
// ignore errors loading user-provided class loader, fall through
}
}
// 2: If URLClassLoader implements Closeable, use that.
if (Closeable.class.isAssignableFrom(URLClassLoader.class))
return new URLClassLoader(urls, thisClassLoader);
// 3: Try using private reflection-based CloseableURLClassLoader
try {
return new CloseableURLClassLoader(urls, thisClassLoader);
} catch (Throwable t) {
// ignore errors loading workaround class loader, fall through
}
// 4: If all else fails, use plain old standard URLClassLoader
return new URLClassLoader(urls, thisClassLoader);
}
// <editor-fold defaultstate="collapsed" desc="Option handling">
public boolean handleOption(String current, Iterator<String> remaining) {
for (JavacOption o: javacFileManagerOptions) {
if (o.matches(current)) {
if (o.hasArg()) {
if (remaining.hasNext()) {
if (!o.process(options, current, remaining.next()))
return true;
}
} else {
if (!o.process(options, current))
return true;
}
// operand missing, or process returned false
throw new IllegalArgumentException(current);
}
}
return false;
}
// where
private static JavacOption[] javacFileManagerOptions =
RecognizedOptions.getJavacFileManagerOptions(
new RecognizedOptions.GrumpyHelper());
public int isSupportedOption(String option) {
for (JavacOption o : javacFileManagerOptions) {
if (o.matches(option))
return o.hasArg() ? 1 : 0;
}
return -1;
}
// </editor-fold>
// <editor-fold defaultstate="collapsed" desc="Encoding">
private String defaultEncodingName;
private String getDefaultEncodingName() {
if (defaultEncodingName == null) {
defaultEncodingName =
new OutputStreamWriter(new ByteArrayOutputStream()).getEncoding();
}
return defaultEncodingName;
}
public String getEncodingName() {
String encName = options.get(OptionName.ENCODING);
if (encName == null)
return getDefaultEncodingName();
else
return encName;
}
public CharBuffer decode(ByteBuffer inbuf, boolean ignoreEncodingErrors) {
String encodingName = getEncodingName();
CharsetDecoder decoder;
try {
decoder = getDecoder(encodingName, ignoreEncodingErrors);
} catch (IllegalCharsetNameException e) {
log.error("unsupported.encoding", encodingName);
return (CharBuffer)CharBuffer.allocate(1).flip();
} catch (UnsupportedCharsetException e) {
log.error("unsupported.encoding", encodingName);
return (CharBuffer)CharBuffer.allocate(1).flip();
}
// slightly overestimate the buffer size to avoid reallocation.
float factor =
decoder.averageCharsPerByte() * 0.8f +
decoder.maxCharsPerByte() * 0.2f;
CharBuffer dest = CharBuffer.
allocate(10 + (int)(inbuf.remaining()*factor));
while (true) {
CoderResult result = decoder.decode(inbuf, dest, true);
dest.flip();
if (result.isUnderflow()) { // done reading
// make sure there is at least one extra character
if (dest.limit() == dest.capacity()) {
dest = CharBuffer.allocate(dest.capacity()+1).put(dest);
dest.flip();
}
return dest;
} else if (result.isOverflow()) { // buffer too small; expand
int newCapacity =
10 + dest.capacity() +
(int)(inbuf.remaining()*decoder.maxCharsPerByte());
dest = CharBuffer.allocate(newCapacity).put(dest);
} else if (result.isMalformed() || result.isUnmappable()) {
// bad character in input
// report coding error (warn only pre 1.5)
if (!getSource().allowEncodingErrors()) {
log.error(new SimpleDiagnosticPosition(dest.limit()),
"illegal.char.for.encoding",
charset == null ? encodingName : charset.name());
} else {
log.warning(new SimpleDiagnosticPosition(dest.limit()),
"illegal.char.for.encoding",
charset == null ? encodingName : charset.name());
}
// skip past the coding error
inbuf.position(inbuf.position() + result.length());
// undo the flip() to prepare the output buffer
// for more translation
dest.position(dest.limit());
dest.limit(dest.capacity());
dest.put((char)0xfffd); // backward compatible
} else {
throw new AssertionError(result);
}
}
// unreached
}
public CharsetDecoder getDecoder(String encodingName, boolean ignoreEncodingErrors) {
Charset cs = (this.charset == null)
? Charset.forName(encodingName)
: this.charset;
CharsetDecoder decoder = cs.newDecoder();
CodingErrorAction action;
if (ignoreEncodingErrors)
action = CodingErrorAction.REPLACE;
else
action = CodingErrorAction.REPORT;
return decoder
.onMalformedInput(action)
.onUnmappableCharacter(action);
}
// </editor-fold>
// <editor-fold defaultstate="collapsed" desc="ByteBuffers">
/**
* Make a byte buffer from an input stream.
*/
public ByteBuffer makeByteBuffer(InputStream in)
throws IOException {
int limit = in.available();
if (limit < 1024) limit = 1024;
ByteBuffer result = byteBufferCache.get(limit);
int position = 0;
while (in.available() != 0) {
if (position >= limit)
// expand buffer
result = ByteBuffer.
allocate(limit <<= 1).
put((ByteBuffer)result.flip());
int count = in.read(result.array(),
position,
limit - position);
if (count < 0) break;
result.position(position += count);
}
return (ByteBuffer)result.flip();
}
public void recycleByteBuffer(ByteBuffer bb) {
byteBufferCache.put(bb);
}
/**
* A single-element cache of direct byte buffers.
*/
private static class ByteBufferCache {
private ByteBuffer cached;
ByteBuffer get(int capacity) {
if (capacity < 20480) capacity = 20480;
ByteBuffer result =
(cached != null && cached.capacity() >= capacity)
? (ByteBuffer)cached.clear()
: ByteBuffer.allocate(capacity + capacity>>1);
cached = null;
return result;
}
void put(ByteBuffer x) {
cached = x;
}
}
private final ByteBufferCache byteBufferCache;
// </editor-fold>
// <editor-fold defaultstate="collapsed" desc="Content cache">
public CharBuffer getCachedContent(JavaFileObject file) {
SoftReference<CharBuffer> r = contentCache.get(file);
return (r == null ? null : r.get());
}
public void cache(JavaFileObject file, CharBuffer cb) {
contentCache.put(file, new SoftReference<CharBuffer>(cb));
}
protected final Map<JavaFileObject, SoftReference<CharBuffer>> contentCache
= new HashMap<JavaFileObject, SoftReference<CharBuffer>>();
// </editor-fold>
public static Kind getKind(String name) {
if (name.endsWith(Kind.CLASS.extension))
return Kind.CLASS;
else if (name.endsWith(Kind.SOURCE.extension))
return Kind.SOURCE;
else if (name.endsWith(Kind.HTML.extension))
return Kind.HTML;
else
return Kind.OTHER;
}
protected static <T> T nullCheck(T o) {
o.getClass(); // null check
return o;
}
protected static <T> Collection<T> nullCheck(Collection<T> it) {
for (T t : it)
t.getClass(); // null check
return it;
}
}

7
langtools/src/share/classes/com/sun/tools/javac/file/CloseableURLClassLoader.java → langtools/src/share/classes/com/sun/tools/javac/util/CloseableURLClassLoader.java
View File

@ -23,7 +23,7 @@
* have any questions.
*/
package com.sun.tools.javac.file;
package com.sun.tools.javac.util;
import java.io.Closeable;
import java.io.IOException;
@ -45,9 +45,9 @@ import java.util.jar.JarFile;
* This code and its internal interfaces are subject to change or
* deletion without notice.</b>
*/
class CloseableURLClassLoader
public class CloseableURLClassLoader
extends URLClassLoader implements Closeable {
CloseableURLClassLoader(URL[] urls, ClassLoader parent) throws Error {
public CloseableURLClassLoader(URL[] urls, ClassLoader parent) throws Error {
super(urls, parent);
try {
getLoaders(); //proactive check that URLClassLoader is as expected
@ -63,6 +63,7 @@ class CloseableURLClassLoader
* @throws java.io.IOException if the jar files cannot be found for any
* reson, or if closing the jar file itself causes an IOException.
*/
@Override
public void close() throws IOException {
try {
for (Object l: getLoaders()) {

1
langtools/src/share/classes/javax/tools/StandardJavaFileManager.java
View File

@ -28,7 +28,6 @@ package javax.tools;
import java.io.File;
import java.io.IOException;
import java.util.*;
import java.util.concurrent.*;
/**
* File manager based on {@linkplain File java.io.File}. A common way

165
langtools/test/tools/javac/nio/compileTest/CompileTest.java Normal file
View File

@ -0,0 +1,165 @@
/*
* Copyright 2009 Sun Microsystems, Inc. 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.
*
* 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/**
* @test
* @compile HelloPathWorld.java
* @run main CompileTest
*/
import java.io.*;
import java.nio.file.*;
import java.util.*;
import java.util.jar.*;
import javax.tools.*;
import com.sun.tools.javac.nio.*;
import com.sun.tools.javac.util.Context;
import java.nio.file.spi.FileSystemProvider;
public class CompileTest {
public static void main(String[] args) throws Exception {
new CompileTest().run();
}
public void run() throws Exception {
File rtDir = new File("rt.dir");
File javaHome = new File(System.getProperty("java.home"));
if (javaHome.getName().equals("jre"))
javaHome = javaHome.getParentFile();
File rtJar = new File(new File(new File(javaHome, "jre"), "lib"), "rt.jar");
expand(rtJar, rtDir);
String[] rtDir_opts = {
"-bootclasspath", rtDir.toString(),
"-classpath", "",
"-sourcepath", "",
"-extdirs", ""
};
test(rtDir_opts, "HelloPathWorld");
if (isJarFileSystemAvailable()) {
String[] rtJar_opts = {
"-bootclasspath", rtJar.toString(),
"-classpath", "",
"-sourcepath", "",
"-extdirs", ""
};
test(rtJar_opts, "HelloPathWorld");
String[] default_opts = { };
test(default_opts, "HelloPathWorld");
// finally, a non-trivial program
test(default_opts, "CompileTest");
} else
System.err.println("jar file system not available: test skipped");
}
void test(String[] opts, String className) throws Exception {
count++;
System.err.println("Test " + count + " " + Arrays.asList(opts) + " " + className);
Path testSrcDir = Paths.get(System.getProperty("test.src"));
Path testClassesDir = Paths.get(System.getProperty("test.classes"));
Path classes = Paths.get("classes." + count);
classes.createDirectory();
Context ctx = new Context();
PathFileManager fm = new JavacPathFileManager(ctx, true, null);
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
List<String> options = new ArrayList<String>();
options.addAll(Arrays.asList(opts));
options.addAll(Arrays.asList(
"-verbose", "-XDverboseCompilePolicy",
"-d", classes.toString()
));
Iterable<? extends JavaFileObject> compilationUnits =
fm.getJavaFileObjects(testSrcDir.resolve(className + ".java"));
StringWriter sw = new StringWriter();
PrintWriter out = new PrintWriter(sw);
JavaCompiler.CompilationTask t =
compiler.getTask(out, fm, null, options, null, compilationUnits);
boolean ok = t.call();
System.err.println(sw.toString());
if (!ok) {
throw new Exception("compilation failed");
}
File expect = new File("classes." + count + "/" + className + ".class");
if (!expect.exists())
throw new Exception("expected file not found: " + expect);
long expectedSize = new File(testClassesDir.toString(), className + ".class").length();
long actualSize = expect.length();
if (expectedSize != actualSize)
throw new Exception("wrong size found: " + actualSize + "; expected: " + expectedSize);
}
boolean isJarFileSystemAvailable() {
boolean result = false;
for (FileSystemProvider fsp: FileSystemProvider.installedProviders()) {
String scheme = fsp.getScheme();
System.err.println("Provider: " + scheme + " " + fsp);
if (scheme.equalsIgnoreCase("jar") || scheme.equalsIgnoreCase("zip"))
result = true;
}
return result;
}
void expand(File jar, File dir) throws IOException {
JarFile jarFile = new JarFile(jar);
try {
Enumeration<JarEntry> entries = jarFile.entries();
while (entries.hasMoreElements()) {
JarEntry je = entries.nextElement();
if (!je.isDirectory()) {
copy(jarFile.getInputStream(je), new File(dir, je.getName()));
}
}
} finally {
jarFile.close();
}
}
void copy(InputStream in, File dest) throws IOException {
dest.getParentFile().mkdirs();
OutputStream out = new BufferedOutputStream(new FileOutputStream(dest));
try {
byte[] data = new byte[8192];
int n;
while ((n = in.read(data, 0, data.length)) > 0)
out.write(data, 0, n);
} finally {
out.close();
in.close();
}
}
void error(String message) {
System.err.println("Error: " + message);
errors++;
}
int errors;
int count;
}

28
langtools/test/tools/javac/nio/compileTest/HelloPathWorld.java Normal file
View File

@ -0,0 +1,28 @@
/*
* Copyright 2009 Sun Microsystems, Inc. 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.
*
* 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
class HelloPathWorld {
public static void main(String... args) {
System.out.println("Hello World!");
}
}