| /* |
| * Copyright (c) 2010, 2015, 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. |
| * |
| * 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. |
| */ |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.Reader; |
| import java.io.Writer; |
| import java.net.URI; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.regex.Pattern; |
| import javax.lang.model.element.Modifier; |
| import javax.lang.model.element.NestingKind; |
| import javax.tools.JavaFileManager.Location; |
| import javax.tools.JavaFileObject; |
| import javax.tools.StandardJavaFileManager; |
| |
| import com.sun.tools.javac.api.WrappingJavaFileManager; |
| |
| /** |
| * A JavaFileManager that can throw IOException on attempting to read or write |
| * selected files that match a regular expression. |
| */ |
| public class FileManager |
| extends WrappingJavaFileManager<StandardJavaFileManager> |
| implements StandardJavaFileManager { |
| private static final String CANT_READ = "cantRead:"; |
| private static final String CANT_WRITE = "cantWrite:"; |
| |
| private Pattern cantRead; |
| private Pattern cantWrite; |
| |
| public FileManager(StandardJavaFileManager fm, List<String> opts) { |
| super(fm); |
| for (String opt: opts) { |
| if (opt.startsWith(CANT_READ)) |
| cantRead = Pattern.compile(opt.substring(CANT_READ.length())); |
| else if (opt.startsWith(CANT_WRITE)) |
| cantWrite = Pattern.compile(opt.substring(CANT_WRITE.length())); |
| else |
| throw new IllegalArgumentException(opt); |
| } |
| } |
| |
| @Override |
| protected JavaFileObject wrap(JavaFileObject fo) { |
| return (fo == null) ? null : new WrappedFileObject(fo); |
| } |
| |
| @Override |
| protected JavaFileObject unwrap(JavaFileObject fo) { |
| if (fo instanceof WrappedFileObject) |
| return ((WrappedFileObject) fo).delegate; |
| else |
| return fo; |
| } |
| |
| public Iterable<? extends JavaFileObject> getJavaFileObjectsFromFiles(Iterable<? extends File> files) { |
| return wrap2(fileManager.getJavaFileObjectsFromFiles(files)); |
| } |
| |
| public Iterable<? extends JavaFileObject> getJavaFileObjects(File... files) { |
| return wrap2(fileManager.getJavaFileObjects(files)); |
| } |
| |
| public Iterable<? extends JavaFileObject> getJavaFileObjectsFromStrings(Iterable<String> names) { |
| return wrap2(fileManager.getJavaFileObjectsFromStrings(names)); |
| } |
| |
| public Iterable<? extends JavaFileObject> getJavaFileObjects(String... names) { |
| return wrap2(fileManager.getJavaFileObjects(names)); |
| } |
| |
| /* This method is regrettably necessary because WrappingJavaFileManager.wrap takes |
| * Iterable<JavaFileObject> fileObjects |
| * instead of |
| * Iterable<? extends JavaFileObject> fileObjects |
| */ |
| protected Iterable<JavaFileObject> wrap2(Iterable<? extends JavaFileObject> fileObjects) { |
| List<JavaFileObject> mapped = new ArrayList<JavaFileObject>(); |
| for (JavaFileObject fileObject : fileObjects) |
| mapped.add(wrap(fileObject)); |
| return Collections.unmodifiableList(mapped); |
| } |
| |
| public void setLocation(Location location, Iterable<? extends File> path) throws IOException { |
| fileManager.setLocation(location, path); |
| } |
| |
| public Iterable<? extends File> getLocation(Location location) { |
| return fileManager.getLocation(location); |
| } |
| |
| class WrappedFileObject implements JavaFileObject { |
| WrappedFileObject(JavaFileObject fileObject) { |
| delegate = Objects.requireNonNull(fileObject); |
| } |
| |
| public Kind getKind() { |
| return delegate.getKind(); |
| } |
| |
| public boolean isNameCompatible(String simpleName, Kind kind) { |
| return delegate.isNameCompatible(simpleName, kind); |
| } |
| |
| public NestingKind getNestingKind() { |
| return delegate.getNestingKind(); |
| } |
| |
| public Modifier getAccessLevel() { |
| return delegate.getAccessLevel(); |
| } |
| |
| public URI toUri() { |
| return delegate.toUri(); |
| } |
| |
| public String getName() { |
| return delegate.getName(); |
| } |
| |
| public InputStream openInputStream() throws IOException { |
| checkRead(); |
| return delegate.openInputStream(); |
| } |
| |
| public OutputStream openOutputStream() throws IOException { |
| checkWrite(); |
| return delegate.openOutputStream(); |
| } |
| |
| public Reader openReader(boolean ignoreEncodingErrors) throws IOException { |
| checkRead(); |
| return delegate.openReader(ignoreEncodingErrors); |
| } |
| |
| public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException { |
| checkRead(); |
| return delegate.getCharContent(ignoreEncodingErrors); |
| } |
| |
| public Writer openWriter() throws IOException { |
| checkWrite(); |
| return delegate.openWriter(); |
| } |
| |
| public long getLastModified() { |
| return delegate.getLastModified(); |
| } |
| |
| public boolean delete() { |
| return delegate.delete(); |
| } |
| |
| void checkRead() throws IOException { |
| String canonName = getName().replace(File.separatorChar, '/'); |
| if (cantRead != null && cantRead.matcher(canonName).matches()) |
| throw new IOException("FileManager: Can't read"); |
| } |
| |
| void checkWrite() throws IOException { |
| String canonName = getName().replace(File.separatorChar, '/'); |
| if (cantWrite != null && cantWrite.matcher(canonName).matches()) |
| throw new IOException("FileManager: Can't write"); |
| } |
| |
| JavaFileObject delegate; |
| } |
| } |