jjg@57: /*
ohair@554:  * Copyright (c) 2005, 2009, Oracle and/or its affiliates. All rights reserved.
jjg@57:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@57:  *
jjg@57:  * This code is free software; you can redistribute it and/or modify it
jjg@57:  * under the terms of the GNU General Public License version 2 only, as
ohair@554:  * published by the Free Software Foundation.  Oracle designates this
jjg@57:  * particular file as subject to the "Classpath" exception as provided
ohair@554:  * by Oracle in the LICENSE file that accompanied this code.
jjg@57:  *
jjg@57:  * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@57:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@57:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jjg@57:  * version 2 for more details (a copy is included in the LICENSE file that
jjg@57:  * accompanied this code).
jjg@57:  *
jjg@57:  * You should have received a copy of the GNU General Public License version
jjg@57:  * 2 along with this work; if not, write to the Free Software Foundation,
jjg@57:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@57:  *
ohair@554:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554:  * or visit www.oracle.com if you need additional information or have any
ohair@554:  * questions.
jjg@57:  */
jjg@57: 
jjg@57: package com.sun.tools.javac.file;
jjg@57: 
jjg@57: import java.io.File;
jjg@57: import java.io.FileInputStream;
jjg@57: import java.io.FileOutputStream;
jjg@57: import java.io.IOException;
jjg@57: import java.io.InputStream;
jjg@57: import java.io.OutputStream;
jjg@57: import java.io.OutputStreamWriter;
jjg@57: import java.io.Writer;
jjg@424: import java.lang.ref.Reference;
jjg@424: import java.lang.ref.SoftReference;
jjg@57: import java.net.URI;
jjg@57: import java.nio.ByteBuffer;
jjg@57: import java.nio.CharBuffer;
jjg@57: import java.nio.charset.CharsetDecoder;
jjg@57: import javax.tools.JavaFileObject;
jjg@57: 
jjg@57: /**
jjg@57:  * A subclass of JavaFileObject representing regular files.
jjg@333:  *
jjg@333:  * <p><b>This is NOT part of any API supported by Sun Microsystems.
jjg@333:  * If you write code that depends on this, you do so at your own risk.
jjg@333:  * This code and its internal interfaces are subject to change or
jjg@333:  * deletion without notice.</b>
jjg@57:  */
jjg@57: class RegularFileObject extends BaseFileObject {
jjg@57: 
jjg@57:     /** Have the parent directories been created?
jjg@57:      */
jjg@57:     private boolean hasParents = false;
jjg@57:     private String name;
jjg@424:     final File file;
jjg@424:     private Reference<File> absFileRef;
jjg@57: 
jjg@57:     public RegularFileObject(JavacFileManager fileManager, File f) {
jjg@57:         this(fileManager, f.getName(), f);
jjg@57:     }
jjg@57: 
jjg@57:     public RegularFileObject(JavacFileManager fileManager, String name, File f) {
jjg@57:         super(fileManager);
jjg@57:         if (f.isDirectory()) {
jjg@57:             throw new IllegalArgumentException("directories not supported");
jjg@57:         }
jjg@57:         this.name = name;
jjg@424:         this.file = f;
jjg@57:     }
jjg@57: 
jjg@415:     @Override
jjg@415:     public URI toUri() {
jjg@424:         return file.toURI().normalize();
jjg@415:     }
jjg@415: 
jjg@415:     @Override
jjg@415:     public String getName() {
jjg@424:         return file.getPath();
jjg@415:     }
jjg@415: 
jjg@415:     @Override
jjg@415:     public String getShortName() {
jjg@415:         return name;
jjg@415:     }
jjg@415: 
jjg@415:     @Override
jjg@415:     public JavaFileObject.Kind getKind() {
jjg@415:         return getKind(name);
jjg@415:     }
jjg@415: 
jjg@415:     @Override
jjg@57:     public InputStream openInputStream() throws IOException {
jjg@424:         return new FileInputStream(file);
jjg@57:     }
jjg@57: 
jjg@400:     @Override
jjg@57:     public OutputStream openOutputStream() throws IOException {
jjg@57:         ensureParentDirectoriesExist();
jjg@424:         return new FileOutputStream(file);
jjg@57:     }
jjg@57: 
jjg@57:     @Override
jjg@57:     public CharBuffer getCharContent(boolean ignoreEncodingErrors) throws IOException {
jjg@57:         CharBuffer cb = fileManager.getCachedContent(this);
jjg@57:         if (cb == null) {
jjg@424:             InputStream in = new FileInputStream(file);
jjg@57:             try {
jjg@57:                 ByteBuffer bb = fileManager.makeByteBuffer(in);
jjg@57:                 JavaFileObject prev = fileManager.log.useSource(this);
jjg@57:                 try {
jjg@57:                     cb = fileManager.decode(bb, ignoreEncodingErrors);
jjg@57:                 } finally {
jjg@57:                     fileManager.log.useSource(prev);
jjg@57:                 }
jjg@57:                 fileManager.recycleByteBuffer(bb);
jjg@57:                 if (!ignoreEncodingErrors) {
jjg@57:                     fileManager.cache(this, cb);
jjg@57:                 }
jjg@57:             } finally {
jjg@57:                 in.close();
jjg@57:             }
jjg@57:         }
jjg@57:         return cb;
jjg@57:     }
jjg@57: 
jjg@57:     @Override
jjg@415:     public Writer openWriter() throws IOException {
jjg@415:         ensureParentDirectoriesExist();
jjg@424:         return new OutputStreamWriter(new FileOutputStream(file), fileManager.getEncodingName());
jjg@415:     }
jjg@415: 
jjg@415:     @Override
jjg@415:     public long getLastModified() {
jjg@424:         return file.lastModified();
jjg@415:     }
jjg@415: 
jjg@415:     @Override
jjg@415:     public boolean delete() {
jjg@424:         return file.delete();
jjg@415:     }
jjg@415: 
jjg@415:     @Override
jjg@415:     protected CharsetDecoder getDecoder(boolean ignoreEncodingErrors) {
jjg@415:         return fileManager.getDecoder(fileManager.getEncodingName(), ignoreEncodingErrors);
jjg@415:     }
jjg@415: 
jjg@415:     @Override
jjg@415:     protected String inferBinaryName(Iterable<? extends File> path) {
jjg@424:         String fPath = file.getPath();
jjg@415:         //System.err.println("RegularFileObject " + file + " " +r.getPath());
jjg@415:         for (File dir: path) {
jjg@415:             //System.err.println("dir: " + dir);
jjg@415:             String dPath = dir.getPath();
jjg@415:             if (dPath.length() == 0)
jjg@415:                 dPath = System.getProperty("user.dir");
jjg@415:             if (!dPath.endsWith(File.separator))
jjg@415:                 dPath += File.separator;
jjg@415:             if (fPath.regionMatches(true, 0, dPath, 0, dPath.length())
jjg@415:                 && new File(fPath.substring(0, dPath.length())).equals(new File(dPath))) {
jjg@415:                 String relativeName = fPath.substring(dPath.length());
jjg@415:                 return removeExtension(relativeName).replace(File.separatorChar, '.');
jjg@415:             }
jjg@415:         }
jjg@415:         return null;
jjg@415:     }
jjg@415: 
jjg@415:     @Override
jjg@415:     public boolean isNameCompatible(String cn, JavaFileObject.Kind kind) {
jjg@415:         cn.getClass();
jjg@415:         // null check
jjg@415:         if (kind == Kind.OTHER && getKind() != kind) {
jjg@415:             return false;
jjg@415:         }
jjg@415:         String n = cn + kind.extension;
jjg@415:         if (name.equals(n)) {
jjg@415:             return true;
jjg@415:         }
jjg@415:         if (name.equalsIgnoreCase(n)) {
jjg@415:             try {
jjg@415:                 // allow for Windows
jjg@424:                 return file.getCanonicalFile().getName().equals(n);
jjg@415:             } catch (IOException e) {
jjg@415:             }
jjg@415:         }
jjg@415:         return false;
jjg@415:     }
jjg@415: 
jjg@415:     private void ensureParentDirectoriesExist() throws IOException {
jjg@415:         if (!hasParents) {
jjg@424:             File parent = file.getParentFile();
jjg@415:             if (parent != null && !parent.exists()) {
jjg@415:                 if (!parent.mkdirs()) {
jjg@415:                     if (!parent.exists() || !parent.isDirectory()) {
jjg@415:                         throw new IOException("could not create parent directories");
jjg@415:                     }
jjg@415:                 }
jjg@415:             }
jjg@415:             hasParents = true;
jjg@415:         }
jjg@415:     }
jjg@415: 
jjg@424:     /**
jjg@424:      * Check if two file objects are equal.
jjg@424:      * Two RegularFileObjects are equal if the absolute paths of the underlying
jjg@424:      * files are equal.
jjg@424:      */
jjg@415:     @Override
jjg@57:     public boolean equals(Object other) {
jjg@424:         if (this == other)
jjg@424:             return true;
jjg@424: 
jjg@424:         if (!(other instanceof RegularFileObject))
jjg@57:             return false;
jjg@424: 
jjg@57:         RegularFileObject o = (RegularFileObject) other;
jjg@424:         return getAbsoluteFile().equals(o.getAbsoluteFile());
jjg@57:     }
jjg@57: 
jjg@57:     @Override
jjg@57:     public int hashCode() {
jjg@424:         return getAbsoluteFile().hashCode();
jjg@424:     }
jjg@424: 
jjg@424:     private File getAbsoluteFile() {
jjg@424:         File absFile = (absFileRef == null ? null : absFileRef.get());
jjg@424:         if (absFile == null) {
jjg@424:             absFile = file.getAbsoluteFile();
jjg@424:             absFileRef = new SoftReference<File>(absFile);
jjg@424:         }
jjg@424:         return absFile;
jjg@57:     }
jjg@57: }