| /* |
| * Copyright (c) 2005, 2011, 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.javac.file; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.OutputStreamWriter; |
| import java.io.Writer; |
| import java.lang.ref.Reference; |
| import java.lang.ref.SoftReference; |
| import java.net.URI; |
| import java.nio.ByteBuffer; |
| import java.nio.CharBuffer; |
| import java.nio.charset.CharsetDecoder; |
| import javax.tools.JavaFileObject; |
| import java.text.Normalizer; |
| |
| /** |
| * A subclass of JavaFileObject representing regular files. |
| * |
| * <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> |
| */ |
| class RegularFileObject extends BaseFileObject { |
| |
| /** Have the parent directories been created? |
| */ |
| private boolean hasParents = false; |
| private String name; |
| final File file; |
| private Reference<File> absFileRef; |
| final static boolean isMacOS = System.getProperty("os.name", "").contains("OS X"); |
| |
| public RegularFileObject(JavacFileManager fileManager, File f) { |
| this(fileManager, f.getName(), f); |
| } |
| |
| public RegularFileObject(JavacFileManager fileManager, String name, File f) { |
| super(fileManager); |
| if (f.isDirectory()) { |
| throw new IllegalArgumentException("directories not supported"); |
| } |
| this.name = name; |
| this.file = f; |
| } |
| |
| @Override |
| public URI toUri() { |
| return file.toURI().normalize(); |
| } |
| |
| @Override |
| public String getName() { |
| return file.getPath(); |
| } |
| |
| @Override |
| public String getShortName() { |
| return name; |
| } |
| |
| @Override |
| public JavaFileObject.Kind getKind() { |
| return getKind(name); |
| } |
| |
| @Override |
| public InputStream openInputStream() throws IOException { |
| return new FileInputStream(file); |
| } |
| |
| @Override |
| public OutputStream openOutputStream() throws IOException { |
| fileManager.flushCache(this); |
| ensureParentDirectoriesExist(); |
| return new FileOutputStream(file); |
| } |
| |
| @Override |
| public CharBuffer getCharContent(boolean ignoreEncodingErrors) throws IOException { |
| CharBuffer cb = fileManager.getCachedContent(this); |
| if (cb == null) { |
| try (InputStream in = new FileInputStream(file)) { |
| 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); |
| } |
| } |
| } |
| return cb; |
| } |
| |
| @Override |
| public Writer openWriter() throws IOException { |
| fileManager.flushCache(this); |
| ensureParentDirectoriesExist(); |
| return new OutputStreamWriter(new FileOutputStream(file), fileManager.getEncodingName()); |
| } |
| |
| @Override |
| public long getLastModified() { |
| return file.lastModified(); |
| } |
| |
| @Override |
| public boolean delete() { |
| return file.delete(); |
| } |
| |
| @Override |
| protected CharsetDecoder getDecoder(boolean ignoreEncodingErrors) { |
| return fileManager.getDecoder(fileManager.getEncodingName(), ignoreEncodingErrors); |
| } |
| |
| @Override |
| protected String inferBinaryName(Iterable<? extends File> path) { |
| String fPath = file.getPath(); |
| //System.err.println("RegularFileObject " + file + " " +r.getPath()); |
| for (File dir: path) { |
| //System.err.println("dir: " + dir); |
| String dPath = dir.getPath(); |
| if (dPath.length() == 0) |
| dPath = System.getProperty("user.dir"); |
| if (!dPath.endsWith(File.separator)) |
| dPath += File.separator; |
| if (fPath.regionMatches(true, 0, dPath, 0, dPath.length()) |
| && new File(fPath.substring(0, dPath.length())).equals(new File(dPath))) { |
| String relativeName = fPath.substring(dPath.length()); |
| return removeExtension(relativeName).replace(File.separatorChar, '.'); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public boolean isNameCompatible(String cn, JavaFileObject.Kind kind) { |
| cn.getClass(); |
| // null check |
| if (kind == Kind.OTHER && getKind() != kind) { |
| return false; |
| } |
| String n = cn + kind.extension; |
| if (name.equals(n)) { |
| return true; |
| } |
| if (isMacOS && Normalizer.isNormalized(name, Normalizer.Form.NFD) |
| && Normalizer.isNormalized(n, Normalizer.Form.NFC)) { |
| // On Mac OS X it is quite possible to file name and class |
| // name normalized in a different way - in that case we have to normalize file name |
| // to the Normal Form Compised (NFC) |
| String normName = Normalizer.normalize(name, Normalizer.Form.NFC); |
| if (normName.equals(n)) { |
| this.name = normName; |
| return true; |
| } |
| } |
| |
| if (name.equalsIgnoreCase(n)) { |
| try { |
| // allow for Windows |
| return file.getCanonicalFile().getName().equals(n); |
| } catch (IOException e) { |
| } |
| } |
| return false; |
| } |
| |
| private void ensureParentDirectoriesExist() throws IOException { |
| if (!hasParents) { |
| File parent = file.getParentFile(); |
| if (parent != null && !parent.exists()) { |
| if (!parent.mkdirs()) { |
| if (!parent.exists() || !parent.isDirectory()) { |
| throw new IOException("could not create parent directories"); |
| } |
| } |
| } |
| hasParents = true; |
| } |
| } |
| |
| /** |
| * Check if two file objects are equal. |
| * Two RegularFileObjects are equal if the absolute paths of the underlying |
| * files are equal. |
| */ |
| @Override |
| public boolean equals(Object other) { |
| if (this == other) |
| return true; |
| |
| if (!(other instanceof RegularFileObject)) |
| return false; |
| |
| RegularFileObject o = (RegularFileObject) other; |
| return getAbsoluteFile().equals(o.getAbsoluteFile()); |
| } |
| |
| @Override |
| public int hashCode() { |
| return getAbsoluteFile().hashCode(); |
| } |
| |
| private File getAbsoluteFile() { |
| File absFile = (absFileRef == null ? null : absFileRef.get()); |
| if (absFile == null) { |
| absFile = file.getAbsoluteFile(); |
| absFileRef = new SoftReference<>(absFile); |
| } |
| return absFile; |
| } |
| } |