jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/apt/mirror/apt/FilerImpl.java@4868a36f6fd8 (annotated)

src/share/classes/com/sun/tools/apt/mirror/apt/FilerImpl.java@4868a36f6fd8 (annotated)

src/share/classes/com/sun/tools/apt/mirror/apt/FilerImpl.java

Tue, 28 Dec 2010 15:54:52 -0800

author: ohair
date: Tue, 28 Dec 2010 15:54:52 -0800
changeset 798: 4868a36f6fd8
parent 789: 878c8f760ded
permissions: -rw-r--r--

6962318: Update copyright year
Reviewed-by: xdono

 /*
  * 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<Location, File> locations;    // where new files go
     private static final Context.Key<FilerImpl> filerKey =
             new Context.Key<FilerImpl>();
     // Set of files opened.
     private Collection<Flushable> wc;
     private Bark bark;
     // All created files.
     private final Set<File> filesCreated;
     // Names of newly created source files
     private HashSet<String> sourceFileNames = new HashSet<String>();
     // Names of newly created class files
     private HashSet<String> classFileNames  = new HashSet<String>();
     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<Flushable>();
         // Locations
         locations = new EnumMap<Location, File>(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<String> getSourceFileNames() {
         return sourceFileNames;
     }
     public Set<String> 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);
         }
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/apt/mirror/apt/FilerImpl.java@4868a36f6fd8 (annotated)

src/share/classes/com/sun/tools/apt/mirror/apt/FilerImpl.java