--- old/src/share/classes/com/sun/tools/apt/mirror/apt/FilerImpl.java 2012-01-19 16:21:22.000000000 -0800 +++ /dev/null 2012-01-10 11:47:00.807870926 -0800 @@ -1,354 +0,0 @@ -/* - * Copyright (c) 2004, 2010, 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 - * questions. - */ - -package com.sun.tools.apt.mirror.apt; - - -import java.io.*; -import java.util.Collection; -import java.util.EnumMap; -import java.util.HashSet; -import java.util.Set; - -import com.sun.mirror.apt.Filer; -import com.sun.tools.apt.mirror.declaration.DeclarationMaker; -import com.sun.tools.javac.util.Context; -import com.sun.tools.javac.util.Options; -import com.sun.tools.javac.util.Position; -import com.sun.tools.apt.util.Bark; - -import static com.sun.mirror.apt.Filer.Location.*; - - -/** - * Implementation of Filer. - */ -@SuppressWarnings("deprecation") -public class FilerImpl implements Filer { - /* - * The Filer class must maintain a number of constraints. First, - * multiple attempts to open the same path within the same - * invocation of apt results in an IOException being thrown. For - * example, trying to open the same source file twice: - * - * createSourceFile("foo.Bar") - * ... - * createSourceFile("foo.Bar") - * - * is disallowed as is opening a text file that happens to have - * the same name as a source file: - * - * createSourceFile("foo.Bar") - * ... - * createTextFile(SOURCE_TREE, "foo", new File("Bar"), null) - * - * Additionally, creating a source file that corresponds to an - * already created class file (or vice versa) generates at least a - * warning. This is an error if -XclassesAsDecls is being used - * since you can't create the same type twice. However, if the - * Filer is used to create a text file named *.java that happens - * to correspond to an existing class file, a warning is *not* - * generated. Similarly, a warning is not generated for a binary - * file named *.class and an existing source file. - * - * The reason for this difference is that source files and class - * files are registered with apt and can get passed on as - * declarations to the next round of processing. Files that are - * just named *.java and *.class are not processed in that manner; - * although having extra source files and class files on the - * source path and class path can alter the behavior of the tool - * and any final compile. - */ - - private enum FileKind { - SOURCE { - void register(File file, String name, FilerImpl that) throws IOException { - // Check for corresponding class file - if (that.filesCreated.contains(new File(that.locations.get(CLASS_TREE), - that.nameToPath(name, ".class")))) { - - that.bark.aptWarning("CorrespondingClassFile", name); - if (that.opts.get("-XclassesAsDecls") != null) - throw new IOException(); - } - that.sourceFileNames.add(file.getPath()); - } - }, - - CLASS { - void register(File file, String name, FilerImpl that) throws IOException { - if (that.filesCreated.contains(new File(that.locations.get(SOURCE_TREE), - that.nameToPath(name, ".java")))) { - that.bark.aptWarning("CorrespondingSourceFile", name); - if (that.opts.get("-XclassesAsDecls") != null) - throw new IOException(); - } - // Track the binary name instead of the filesystem location - that.classFileNames.add(name); - } - }, - - OTHER { - // Nothing special to do - void register(File file, String name, FilerImpl that) throws IOException {} - }; - - abstract void register(File file, String name, FilerImpl that) throws IOException; - } - - private final Options opts; - private final DeclarationMaker declMaker; - private final com.sun.tools.apt.main.AptJavaCompiler comp; - - // Platform's default encoding - private final static String DEFAULT_ENCODING = - new OutputStreamWriter(new ByteArrayOutputStream()).getEncoding(); - - private String encoding; // name of charset used for source files - - private final EnumMap locations; // where new files go - - - private static final Context.Key filerKey = - new Context.Key(); - - // Set of files opened. - private Collection wc; - - private Bark bark; - - // All created files. - private final Set filesCreated; - - // Names of newly created source files - private HashSet sourceFileNames = new HashSet(); - - // Names of newly created class files - private HashSet classFileNames = new HashSet(); - - private boolean roundOver; - - public static FilerImpl instance(Context context) { - FilerImpl instance = context.get(filerKey); - if (instance == null) { - instance = new FilerImpl(context); - } - return instance; - } - - // flush all output streams; - public void flush() { - for(Flushable opendedFile: wc) { - try { - opendedFile.flush(); - if (opendedFile instanceof FileOutputStream) { - try { - ((FileOutputStream) opendedFile).getFD().sync() ; - } catch (java.io.SyncFailedException sfe) {} - } - } catch (IOException e) { } - } - } - - private FilerImpl(Context context) { - context.put(filerKey, this); - opts = Options.instance(context); - declMaker = DeclarationMaker.instance(context); - bark = Bark.instance(context); - comp = com.sun.tools.apt.main.AptJavaCompiler.instance(context); - roundOver = false; - this.filesCreated = comp.getAggregateGenFiles(); - - // Encoding - encoding = opts.get("-encoding"); - if (encoding == null) { - encoding = DEFAULT_ENCODING; - } - - wc = new HashSet(); - - // Locations - locations = new EnumMap(Location.class); - String s = opts.get("-s"); // location for new source files - String d = opts.get("-d"); // location for new class files - locations.put(SOURCE_TREE, new File(s != null ? s : ".")); - locations.put(CLASS_TREE, new File(d != null ? d : ".")); - } - - - /** - * {@inheritDoc} - */ - public PrintWriter createSourceFile(String name) throws IOException { - String pathname = nameToPath(name, ".java"); - File file = new File(locations.get(SOURCE_TREE), - pathname); - PrintWriter pw = getPrintWriter(file, encoding, name, FileKind.SOURCE); - return pw; - } - - /** - * {@inheritDoc} - */ - public OutputStream createClassFile(String name) throws IOException { - String pathname = nameToPath(name, ".class"); - File file = new File(locations.get(CLASS_TREE), - pathname); - OutputStream os = getOutputStream(file, name, FileKind.CLASS); - return os; - } - - /** - * {@inheritDoc} - */ - public PrintWriter createTextFile(Location loc, - String pkg, - File relPath, - String charsetName) throws IOException { - File file = (pkg.length() == 0) - ? relPath - : new File(nameToPath(pkg), relPath.getPath()); - if (charsetName == null) { - charsetName = encoding; - } - return getPrintWriter(loc, file.getPath(), charsetName, null, FileKind.OTHER); - } - - /** - * {@inheritDoc} - */ - public OutputStream createBinaryFile(Location loc, - String pkg, - File relPath) throws IOException { - File file = (pkg.length() == 0) - ? relPath - : new File(nameToPath(pkg), relPath.getPath()); - return getOutputStream(loc, file.getPath(), null, FileKind.OTHER); - } - - - /** - * Converts the canonical name of a top-level type or package to a - * pathname. Suffix is ".java" or ".class" or "". - */ - private String nameToPath(String name, String suffix) throws IOException { - if (!DeclarationMaker.isJavaIdentifier(name.replace('.', '_'))) { - bark.aptWarning("IllegalFileName", name); - throw new IOException(); - } - return name.replace('.', File.separatorChar) + suffix; - } - - private String nameToPath(String name) throws IOException { - return nameToPath(name, ""); - } - - /** - * Returns a writer for a text file given its location, its - * pathname relative to that location, and its encoding. - */ - private PrintWriter getPrintWriter(Location loc, String pathname, - String encoding, String name, FileKind kind) throws IOException { - File file = new File(locations.get(loc), pathname); - return getPrintWriter(file, encoding, name, kind); - } - - /** - * Returns a writer for a text file given its encoding. - */ - private PrintWriter getPrintWriter(File file, - String encoding, String name, FileKind kind) throws IOException { - prepareFile(file, name, kind); - PrintWriter pw = - new PrintWriter( - new BufferedWriter( - new OutputStreamWriter(new FileOutputStream(file), - encoding))); - wc.add(pw); - return pw; - } - - /** - * Returns an output stream for a binary file given its location - * and its pathname relative to that location. - */ - private OutputStream getOutputStream(Location loc, String pathname, String name, FileKind kind) - throws IOException { - File file = new File(locations.get(loc), pathname); - return getOutputStream(file, name, kind); - } - - private OutputStream getOutputStream(File file, String name, FileKind kind) throws IOException { - prepareFile(file, name, kind); - OutputStream os = new FileOutputStream(file); - wc.add(os); - return os; - - } - - public Set getSourceFileNames() { - return sourceFileNames; - } - - public Set getClassFileNames() { - return classFileNames; - } - - public void roundOver() { - roundOver = true; - } - - /** - * Checks that the file has not already been created during this - * invocation. If not, creates intermediate directories, and - * deletes the file if it already exists. - */ - private void prepareFile(File file, String name, FileKind kind) throws IOException { - if (roundOver) { - bark.aptWarning("NoNewFilesAfterRound", file.toString()); - throw new IOException(); - } - - if (filesCreated.contains(file)) { - bark.aptWarning("FileReopening", file.toString()); - throw new IOException(); - } else { - if (file.exists()) { - file.delete(); - } else { - File parent = file.getParentFile(); - if (parent != null && !parent.exists()) { - if(!parent.mkdirs()) { - bark.aptWarning("BadParentDirectory", file.toString()); - throw new IOException(); - } - } - } - - kind.register(file, name, this); - filesCreated.add(file); - } - } -}