package io.vertx.core.file.impl;
import io.vertx.core.AsyncResult;
import io.vertx.core.Future;
import io.vertx.core.Handler;
import io.vertx.core.Promise;
import io.vertx.core.buffer.Buffer;
import io.vertx.core.file.AsyncFile;
import io.vertx.core.file.CopyOptions;
import io.vertx.core.file.FileProps;
import io.vertx.core.file.FileSystem;
import io.vertx.core.file.FileSystemException;
import io.vertx.core.file.FileSystemProps;
import io.vertx.core.file.OpenOptions;
import io.vertx.core.impl.ContextInternal;
import io.vertx.core.impl.VertxInternal;
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.file.CopyOption;
import java.nio.file.FileAlreadyExistsException;
import java.nio.file.FileStore;
import java.nio.file.FileVisitOption;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.LinkOption;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.StandardCopyOption;
import java.nio.file.attribute.BasicFileAttributes;
import java.nio.file.attribute.FileAttribute;
import java.nio.file.attribute.GroupPrincipal;
import java.nio.file.attribute.PosixFileAttributeView;
import java.nio.file.attribute.PosixFilePermission;
import java.nio.file.attribute.PosixFilePermissions;
import java.nio.file.attribute.UserPrincipal;
import java.nio.file.attribute.UserPrincipalLookupService;
import java.util.ArrayList;
import java.util.EnumSet;
import java.util.HashSet;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import java.util.regex.Pattern;
public class FileSystemImpl implements FileSystem {
private static final CopyOptions DEFAULT_OPTIONS = new CopyOptions();
protected final VertxInternal vertx;
public FileSystemImpl(VertxInternal vertx) {
this.vertx = vertx;
}
public FileSystem copy(String from, String to, Handler<AsyncResult<Void>> handler) {
return copy(from, to, DEFAULT_OPTIONS, handler);
}
@Override
public FileSystem copy(String from, String to, CopyOptions options, Handler<AsyncResult<Void>> handler) {
copyInternal(from, to, options, handler).run();
return this;
}
public FileSystem copyBlocking(String from, String to) {
copyInternal(from, to, DEFAULT_OPTIONS, null).perform();
return this;
}
public FileSystem copyRecursive(String from, String to, boolean recursive, Handler<AsyncResult<Void>> handler) {
copyRecursiveInternal(from, to, recursive, handler).run();
return this;
}
public FileSystem copyRecursiveBlocking(String from, String to, boolean recursive) {
copyRecursiveInternal(from, to, recursive, null).perform();
return this;
}
public FileSystem move(String from, String to, Handler<AsyncResult<Void>> handler) {
return move(from, to, DEFAULT_OPTIONS, handler);
}
@Override
public FileSystem move(String from, String to, CopyOptions options, Handler<AsyncResult<Void>> handler) {
moveInternal(from, to, options, handler).run();
return this;
}
public FileSystem moveBlocking(String from, String to) {
moveInternal(from, to, DEFAULT_OPTIONS, null).perform();
return this;
}
public FileSystem truncate(String path, long len, Handler<AsyncResult<Void>> handler) {
truncateInternal(path, len, handler).run();
return this;
}
public FileSystem truncateBlocking(String path, long len) {
truncateInternal(path, len, null).perform();
return this;
}
public FileSystem chmod(String path, String perms, Handler<AsyncResult<Void>> handler) {
chmodInternal(path, perms, handler).run();
return this;
}
public FileSystem chmodBlocking(String path, String perms) {
chmodInternal(path, perms, null).perform();
return this;
}
public FileSystem chmodRecursive(String path, String perms, String dirPerms, Handler<AsyncResult<Void>> handler) {
chmodInternal(path, perms, dirPerms, handler).run();
return this;
}
public FileSystem chmodRecursiveBlocking(String path, String perms, String dirPerms) {
chmodInternal(path, perms, dirPerms, null).perform();
return this;
}
public FileSystem chown(String path, String user, String group, Handler<AsyncResult<Void>> handler) {
chownInternal(path, user, group, handler).run();
return this;
}
public FileSystem chownBlocking(String path, String user, String group) {
chownInternal(path, user, group, null).perform();
return this;
}
public FileSystem props(String path, Handler<AsyncResult<FileProps>> handler) {
propsInternal(path, handler).run();
return this;
}
public FileProps propsBlocking(String path) {
return propsInternal(path, null).perform();
}
public FileSystem lprops(String path, Handler<AsyncResult<FileProps>> handler) {
lpropsInternal(path, handler).run();
return this;
}
public FileProps lpropsBlocking(String path) {
return lpropsInternal(path, null).perform();
}
public FileSystem link(String link, String existing, Handler<AsyncResult<Void>> handler) {
linkInternal(link, existing, handler).run();
return this;
}
public FileSystem linkBlocking(String link, String existing) {
linkInternal(link, existing, null).perform();
return this;
}
public FileSystem symlink(String link, String existing, Handler<AsyncResult<Void>> handler) {
symlinkInternal(link, existing, handler).run();
return this;
}
public FileSystem symlinkBlocking(String link, String existing) {
symlinkInternal(link, existing, null).perform();
return this;
}
public FileSystem unlink(String link, Handler<AsyncResult<Void>> handler) {
unlinkInternal(link, handler).run();
return this;
}
public FileSystem unlinkBlocking(String link) {
unlinkInternal(link, null).perform();
return this;
}
public FileSystem readSymlink(String link, Handler<AsyncResult<String>> handler) {
readSymlinkInternal(link, handler).run();
return this;
}
public String readSymlinkBlocking(String link) {
return readSymlinkInternal(link, null).perform();
}
public FileSystem delete(String path, Handler<AsyncResult<Void>> handler) {
deleteInternal(path, handler).run();
return this;
}
public FileSystem deleteBlocking(String path) {
deleteInternal(path, null).perform();
return this;
}
public FileSystem deleteRecursive(String path, boolean recursive, Handler<AsyncResult<Void>> handler) {
deleteInternal(path, recursive, handler).run();
return this;
}
public FileSystem deleteRecursiveBlocking(String path, boolean recursive) {
deleteInternal(path, recursive, null).perform();
return this;
}
public FileSystem mkdir(String path, Handler<AsyncResult<Void>> handler) {
mkdirInternal(path, handler).run();
return this;
}
public FileSystem mkdirBlocking(String path) {
mkdirInternal(path, null).perform();
return this;
}
public FileSystem mkdirs(String path, Handler<AsyncResult<Void>> handler) {
mkdirInternal(path, true, handler).run();
return this;
}
public FileSystem mkdirsBlocking(String path) {
mkdirInternal(path, true, null).perform();
return this;
}
public FileSystem mkdir(String path, String perms, Handler<AsyncResult<Void>> handler) {
mkdirInternal(path, perms, handler).run();
return this;
}
public FileSystem mkdirBlocking(String path, String perms) {
mkdirInternal(path, perms, null).perform();
return this;
}
public FileSystem mkdirs(String path, String perms, Handler<AsyncResult<Void>> handler) {
mkdirInternal(path, perms, true, handler).run();
return this;
}
public FileSystem mkdirsBlocking(String path, String perms) {
mkdirInternal(path, perms, true, null).perform();
return this;
}
public FileSystem readDir(String path, Handler<AsyncResult<List<String>>> handler) {
readDirInternal(path, handler).run();
return this;
}
public List<String> readDirBlocking(String path) {
return readDirInternal(path, null).perform();
}
public FileSystem readDir(String path, String filter, Handler<AsyncResult<List<String>>> handler) {
readDirInternal(path, filter, handler).run();
return this;
}
public List<String> readDirBlocking(String path, String filter) {
return readDirInternal(path, filter, null).perform();
}
public FileSystem readFile(String path, Handler<AsyncResult<Buffer>> handler) {
readFileInternal(path, handler).run();
return this;
}
public Buffer readFileBlocking(String path) {
return readFileInternal(path, null).perform();
}
public FileSystem writeFile(String path, Buffer data, Handler<AsyncResult<Void>> handler) {
writeFileInternal(path, data, handler).run();
return this;
}
public FileSystem writeFileBlocking(String path, Buffer data) {
writeFileInternal(path, data, null).perform();
return this;
}
public FileSystem open(String path, OpenOptions options, Handler<AsyncResult<AsyncFile>> handler) {
openInternal(path, options, handler).run();
return this;
}
public AsyncFile openBlocking(String path, OpenOptions options) {
return openInternal(path, options, null).perform();
}
public FileSystem createFile(String path, Handler<AsyncResult<Void>> handler) {
createFileInternal(path, handler).run();
return this;
}
public FileSystem createFileBlocking(String path) {
createFileInternal(path, null).perform();
return this;
}
public FileSystem createFile(String path, String perms, Handler<AsyncResult<Void>> handler) {
createFileInternal(path, perms, handler).run();
return this;
}
public FileSystem createFileBlocking(String path, String perms) {
createFileInternal(path, perms, null).perform();
return this;
}
public FileSystem exists(String path, Handler<AsyncResult<Boolean>> handler) {
existsInternal(path, handler).run();
return this;
}
public boolean existsBlocking(String path) {
return existsInternal(path, null).perform();
}
public FileSystem fsProps(String path, Handler<AsyncResult<FileSystemProps>> handler) {
fsPropsInternal(path, handler).run();
return this;
}
public FileSystemProps fsPropsBlocking(String path) {
return fsPropsInternal(path, null).perform();
}
@Override
public FileSystem createTempDirectory(String prefix, Handler<AsyncResult<String>> handler) {
createTempDirectoryInternal(null, prefix, null, handler).run();
return this;
}
@Override
public String createTempDirectoryBlocking(String prefix) {
return createTempDirectoryInternal(null, prefix, null, null).perform();
}
@Override
public FileSystem createTempDirectory(String prefix, String perms, Handler<AsyncResult<String>> handler) {
createTempDirectoryInternal(null, prefix, perms, handler).run();
return this;
}
@Override
public String createTempDirectoryBlocking(String prefix, String perms) {
return createTempDirectoryInternal(null, prefix, perms, null).perform();
}
@Override
public FileSystem createTempDirectory(String dir, String prefix, String perms, Handler<AsyncResult<String>> handler) {
createTempDirectoryInternal(dir, prefix, perms, handler).run();
return this;
}
@Override
public String createTempDirectoryBlocking(String dir, String prefix, String perms) {
return createTempDirectoryInternal(dir, prefix, perms, null).perform();
}
@Override
public FileSystem createTempFile(String prefix, String suffix, Handler<AsyncResult<String>> handler) {
createTempFileInternal(null, prefix, suffix, null, handler).run();
return this;
}
@Override
public String createTempFileBlocking(String prefix, String suffix) {
return createTempFileInternal(null, prefix, suffix, null, null).perform();
}
@Override
public FileSystem createTempFile(String prefix, String suffix, String perms, Handler<AsyncResult<String>> handler) {
createTempFileInternal(null, prefix, suffix, perms, handler).run();
return this;
}
@Override
public String createTempFileBlocking(String prefix, String suffix, String perms) {
return createTempFileInternal(null, prefix, suffix, perms, null).perform();
}
@Override
public FileSystem createTempFile(String dir, String prefix, String suffix, String perms, Handler<AsyncResult<String>> handler) {
createTempFileInternal(dir, prefix, suffix, perms, handler).run();
return this;
}
@Override
public String createTempFileBlocking(String dir, String prefix, String suffix, String perms) {
return createTempFileInternal(dir, prefix, suffix, perms, null).perform();
}
private BlockingAction<Void> copyInternal(String from, String to, CopyOptions options, Handler<AsyncResult<Void>> handler) {
Objects.requireNonNull(from);
Objects.requireNonNull(to);
Objects.requireNonNull(options);
Set<CopyOption> copyOptionSet = toCopyOptionSet(options);
CopyOption[] copyOptions = copyOptionSet.toArray(new CopyOption[copyOptionSet.size()]);
return new BlockingAction<Void>(handler) {
public Void perform() {
try {
Path source = vertx.resolveFile(from).toPath();
Path target = vertx.resolveFile(to).toPath();
Files.copy(source, target, copyOptions);
} catch (IOException e) {
throw new FileSystemException(e);
}
return null;
}
};
}
private BlockingAction<Void> copyRecursiveInternal(String from, String to, boolean recursive, Handler<AsyncResult<Void>> handler) {
Objects.requireNonNull(from);
Objects.requireNonNull(to);
return new BlockingAction<Void>(handler) {
public Void perform() {
try {
Path source = vertx.resolveFile(from).toPath();
Path target = vertx.resolveFile(to).toPath();
if (recursive) {
Files.walkFileTree(source, EnumSet.of(FileVisitOption.FOLLOW_LINKS), Integer.MAX_VALUE,
new SimpleFileVisitor<Path>() {
public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs)
throws IOException {
Path targetDir = target.resolve(source.relativize(dir));
try {
Files.copy(dir, targetDir);
} catch (FileAlreadyExistsException e) {
if (!Files.isDirectory(targetDir)) {
throw e;
}
}
return FileVisitResult.CONTINUE;
}
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs)
throws IOException {
Files.copy(file, target.resolve(source.relativize(file)));
return FileVisitResult.CONTINUE;
}
});
} else {
Files.copy(source, target);
}
} catch (IOException e) {
throw new FileSystemException(e);
}
return null;
}
};
}
private BlockingAction<Void> moveInternal(String from, String to, CopyOptions options, Handler<AsyncResult<Void>> handler) {
Objects.requireNonNull(from);
Objects.requireNonNull(to);
Objects.requireNonNull(options);
Set<CopyOption> copyOptionSet = toCopyOptionSet(options);
CopyOption[] copyOptions = copyOptionSet.toArray(new CopyOption[copyOptionSet.size()]);
return new BlockingAction<Void>(handler) {
public Void perform() {
try {
Path source = vertx.resolveFile(from).toPath();
Path target = vertx.resolveFile(to).toPath();
Files.move(source, target, copyOptions);
} catch (IOException e) {
throw new FileSystemException(e);
}
return null;
}
};
}
private BlockingAction<Void> truncateInternal(String p, long len, Handler<AsyncResult<Void>> handler) {
Objects.requireNonNull(p);
return new BlockingAction<Void>(handler) {
public Void perform() {
RandomAccessFile raf = null;
try {
String path = vertx.resolveFile(p).getAbsolutePath();
if (len < 0) {
throw new FileSystemException("Cannot truncate file to size < 0");
}
if (!Files.exists(Paths.get(path))) {
throw new FileSystemException("Cannot truncate file " + path + ". Does not exist");
}
try {
raf = new RandomAccessFile(path, "rw");
raf.setLength(len);
} finally {
if (raf != null) raf.close();
}
} catch (IOException e) {
throw new FileSystemException(e);
}
return null;
}
};
}
private BlockingAction<Void> chmodInternal(String path, String perms, Handler<AsyncResult<Void>> handler) {
return chmodInternal(path, perms, null, handler);
}
protected BlockingAction<Void> chmodInternal(String path, String perms, String dirPerms, Handler<AsyncResult<Void>> handler) {
Objects.requireNonNull(path);
Set<PosixFilePermission> permissions = PosixFilePermissions.fromString(perms);
Set<PosixFilePermission> dirPermissions = dirPerms == null ? null : PosixFilePermissions.fromString(dirPerms);
return new BlockingAction<Void>(handler) {
public Void perform() {
try {
Path target = vertx.resolveFile(path).toPath();
if (dirPermissions != null) {
Files.walkFileTree(target, new SimpleFileVisitor<Path>() {
public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
Files.setPosixFilePermissions(dir, dirPermissions);
return FileVisitResult.CONTINUE;
}
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
Files.setPosixFilePermissions(file, permissions);
return FileVisitResult.CONTINUE;
}
});
} else {
Files.setPosixFilePermissions(target, permissions);
}
} catch (SecurityException e) {
throw new FileSystemException("Accessed denied for chmod on " + path);
} catch (IOException e) {
throw new FileSystemException(e);
}
return null;
}
};
}
protected BlockingAction<Void> chownInternal(String path, String user, String group, Handler<AsyncResult<Void>> handler) {
Objects.requireNonNull(path);
return new BlockingAction<Void>(handler) {
public Void perform() {
try {
Path target = vertx.resolveFile(path).toPath();
UserPrincipalLookupService service = target.getFileSystem().getUserPrincipalLookupService();
UserPrincipal userPrincipal = user == null ? null : service.lookupPrincipalByName(user);
GroupPrincipal groupPrincipal = group == null ? null : service.lookupPrincipalByGroupName(group);
if (groupPrincipal != null) {
PosixFileAttributeView view = Files.getFileAttributeView(target, PosixFileAttributeView.class, LinkOption.NOFOLLOW_LINKS);
if (view == null) {
throw new FileSystemException("Change group of file not supported");
}
view.setGroup(groupPrincipal);
}
if (userPrincipal != null) {
Files.setOwner(target, userPrincipal);
}
} catch (SecurityException e) {
throw new FileSystemException("Accessed denied for chown on " + path);
} catch (IOException e) {
throw new FileSystemException(e);
}
return null;
}
};
}
private BlockingAction<FileProps> propsInternal(String path, Handler<AsyncResult<FileProps>> handler) {
return props(path, true, handler);
}
private BlockingAction<FileProps> lpropsInternal(String path, Handler<AsyncResult<FileProps>> handler) {
return props(path, false, handler);
}
private BlockingAction<FileProps> props(String path, boolean followLinks, Handler<AsyncResult<FileProps>> handler) {
Objects.requireNonNull(path);
return new BlockingAction<FileProps>(handler) {
public FileProps perform() {
try {
Path target = vertx.resolveFile(path).toPath();
BasicFileAttributes attrs;
if (followLinks) {
attrs = Files.readAttributes(target, BasicFileAttributes.class);
} else {
attrs = Files.readAttributes(target, BasicFileAttributes.class, LinkOption.NOFOLLOW_LINKS);
}
return new FilePropsImpl(attrs);
} catch (IOException e) {
throw new FileSystemException(e);
}
}
};
}
private BlockingAction<Void> linkInternal(String link, String existing, Handler<AsyncResult<Void>> handler) {
return link(link, existing, false, handler);
}
private BlockingAction<Void> symlinkInternal(String link, String existing, Handler<AsyncResult<Void>> handler) {
return link(link, existing, true, handler);
}
private BlockingAction<Void> link(String link, String existing, boolean symbolic, Handler<AsyncResult<Void>> handler) {
Objects.requireNonNull(link);
Objects.requireNonNull(existing);
return new BlockingAction<Void>(handler) {
public Void perform() {
try {
Path source = vertx.resolveFile(link).toPath();
Path target = vertx.resolveFile(existing).toPath();
if (symbolic) {
Files.createSymbolicLink(source, target);
} else {
Files.createLink(source, target);
}
} catch (IOException e) {
throw new FileSystemException(e);
}
return null;
}
};
}
private BlockingAction<Void> unlinkInternal(String link, Handler<AsyncResult<Void>> handler) {
return deleteInternal(link, handler);
}
private BlockingAction<String> readSymlinkInternal(String link, Handler<AsyncResult<String>> handler) {
Objects.requireNonNull(link);
return new BlockingAction<String>(handler) {
public String perform() {
try {
Path source = vertx.resolveFile(link).toPath();
return Files.readSymbolicLink(source).toString();
} catch (IOException e) {
throw new FileSystemException(e);
}
}
};
}
private BlockingAction<Void> deleteInternal(String path, Handler<AsyncResult<Void>> handler) {
return deleteInternal(path, false, handler);
}
private BlockingAction<Void> deleteInternal(String path, boolean recursive, Handler<AsyncResult<Void>> handler) {
Objects.requireNonNull(path);
return new BlockingAction<Void>(handler) {
public Void perform() {
try {
Path source = vertx.resolveFile(path).toPath();
delete(source, recursive);
} catch (IOException e) {
throw new FileSystemException(e);
}
return null;
}
};
}
public static void delete(Path path, boolean recursive) throws IOException {
if (recursive) {
Files.walkFileTree(path, new SimpleFileVisitor<Path>() {
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
Files.delete(file);
return FileVisitResult.CONTINUE;
}
public FileVisitResult postVisitDirectory(Path dir, IOException e) throws IOException {
if (e == null) {
Files.delete(dir);
return FileVisitResult.CONTINUE;
} else {
throw e;
}
}
});
} else {
Files.delete(path);
}
}
private BlockingAction<Void> mkdirInternal(String path, Handler<AsyncResult<Void>> handler) {
return mkdirInternal(path, null, false, handler);
}
private BlockingAction<Void> mkdirInternal(String path, boolean createParents, Handler<AsyncResult<Void>> handler) {
return mkdirInternal(path, null, createParents, handler);
}
private BlockingAction<Void> mkdirInternal(String path, String perms, Handler<AsyncResult<Void>> handler) {
return mkdirInternal(path, perms, false, handler);
}
protected BlockingAction<Void> mkdirInternal(String path, String perms, boolean createParents, Handler<AsyncResult<Void>> handler) {
Objects.requireNonNull(path);
FileAttribute<?> attrs = perms == null ? null : PosixFilePermissions.asFileAttribute(PosixFilePermissions.fromString(perms));
return new BlockingAction<Void>(handler) {
public Void perform() {
try {
Path source = vertx.resolveFile(path).toPath();
if (createParents) {
if (attrs != null) {
Files.createDirectories(source, attrs);
} else {
Files.createDirectories(source);
}
} else {
if (attrs != null) {
Files.createDirectory(source, attrs);
} else {
Files.createDirectory(source);
}
}
} catch (IOException e) {
throw new FileSystemException(e);
}
return null;
}
};
}
protected BlockingAction<String> createTempDirectoryInternal(String parentDir, String prefix, String perms, Handler<AsyncResult<String>> handler) {
FileAttribute<?> attrs = perms == null ? null : PosixFilePermissions.asFileAttribute(PosixFilePermissions.fromString(perms));
return new BlockingAction<String>(handler) {
public String perform() {
try {
Path tmpDir;
if (parentDir != null) {
Path dir = vertx.resolveFile(parentDir).toPath();
if (attrs != null) {
tmpDir = Files.createTempDirectory(dir, prefix, attrs);
} else {
tmpDir = Files.createTempDirectory(dir, prefix);
}
} else {
if (attrs != null) {
tmpDir = Files.createTempDirectory(prefix, attrs);
} else {
tmpDir = Files.createTempDirectory(prefix);
}
}
return tmpDir.toFile().getAbsolutePath();
} catch (IOException e) {
throw new FileSystemException(e);
}
}
};
}
protected BlockingAction<String> createTempFileInternal(String parentDir, String prefix, String suffix, String perms, Handler<AsyncResult<String>> handler) {
FileAttribute<?> attrs = perms == null ? null : PosixFilePermissions.asFileAttribute(PosixFilePermissions.fromString(perms));
return new BlockingAction<String>(handler) {
public String perform() {
try {
Path tmpFile;
if (parentDir != null) {
Path dir = vertx.resolveFile(parentDir).toPath();
if (attrs != null) {
tmpFile = Files.createTempFile(dir, prefix, suffix, attrs);
} else {
tmpFile = Files.createTempFile(dir, prefix, suffix);
}
} else {
if (attrs != null) {
tmpFile = Files.createTempFile(prefix, suffix, attrs);
} else {
tmpFile = Files.createTempFile(prefix, suffix);
}
}
return tmpFile.toFile().getAbsolutePath();
} catch (IOException e) {
throw new FileSystemException(e);
}
}
};
}
private BlockingAction<List<String>> readDirInternal(String path, Handler<AsyncResult<List<String>>> handler) {
return readDirInternal(path, null, handler);
}
private BlockingAction<List<String>> readDirInternal(String p, String filter, Handler<AsyncResult<List<String>>> handler) {
Objects.requireNonNull(p);
return new BlockingAction<List<String>>(handler) {
public List<String> perform() {
try {
File file = vertx.resolveFile(p);
if (!file.exists()) {
throw new FileSystemException("Cannot read directory " + file + ". Does not exist");
}
if (!file.isDirectory()) {
throw new FileSystemException("Cannot read directory " + file + ". It's not a directory");
} else {
FilenameFilter fnFilter;
if (filter != null) {
fnFilter = new FilenameFilter() {
public boolean accept(File dir, String name) {
return Pattern.matches(filter, name);
}
};
} else {
fnFilter = null;
}
File[] files;
if (fnFilter == null) {
files = file.listFiles();
} else {
files = file.listFiles(fnFilter);
}
List<String> ret = new ArrayList<>(files.length);
for (File f : files) {
ret.add(f.getCanonicalPath());
}
return ret;
}
} catch (IOException e) {
throw new FileSystemException(e);
}
}
};
}
private BlockingAction<Buffer> readFileInternal(String path, Handler<AsyncResult<Buffer>> handler) {
Objects.requireNonNull(path);
return new BlockingAction<Buffer>(handler) {
public Buffer perform() {
try {
Path target = vertx.resolveFile(path).toPath();
byte[] bytes = Files.readAllBytes(target);
Buffer buff = Buffer.buffer(bytes);
return buff;
} catch (IOException e) {
throw new FileSystemException(e);
}
}
};
}
private BlockingAction<Void> writeFileInternal(String path, Buffer data, Handler<AsyncResult<Void>> handler) {
Objects.requireNonNull(path);
Objects.requireNonNull(data);
return new BlockingAction<Void>(handler) {
public Void perform() {
try {
Path target = vertx.resolveFile(path).toPath();
Files.write(target, data.getBytes());
return null;
} catch (IOException e) {
throw new FileSystemException(e);
}
}
};
}
private BlockingAction<AsyncFile> openInternal(String p, OpenOptions options, Handler<AsyncResult<AsyncFile>> handler) {
Objects.requireNonNull(p);
Objects.requireNonNull(options);
return new BlockingAction<AsyncFile>(handler) {
public AsyncFile perform() {
String path = vertx.resolveFile(p).getAbsolutePath();
return doOpen(path, options, context);
}
};
}
protected AsyncFile doOpen(String path, OpenOptions options, ContextInternal context) {
return new AsyncFileImpl(vertx, path, options, context);
}
private BlockingAction<Void> createFileInternal(String path, Handler<AsyncResult<Void>> handler) {
return createFileInternal(path, null, handler);
}
protected BlockingAction<Void> createFileInternal(String p, String perms, Handler<AsyncResult<Void>> handler) {
Objects.requireNonNull(p);
FileAttribute<?> attrs = perms == null ? null : PosixFilePermissions.asFileAttribute(PosixFilePermissions.fromString(perms));
return new BlockingAction<Void>(handler) {
public Void perform() {
try {
Path target = vertx.resolveFile(p).toPath();
if (attrs != null) {
Files.createFile(target, attrs);
} else {
Files.createFile(target);
}
} catch (IOException e) {
throw new FileSystemException(e);
}
return null;
}
};
}
private BlockingAction<Boolean> existsInternal(String path, Handler<AsyncResult<Boolean>> handler) {
Objects.requireNonNull(path);
return new BlockingAction<Boolean>(handler) {
File file = vertx.resolveFile(path);
public Boolean perform() {
return file.exists();
}
};
}
private BlockingAction<FileSystemProps> fsPropsInternal(String path, Handler<AsyncResult<FileSystemProps>> handler) {
Objects.requireNonNull(path);
return new BlockingAction<FileSystemProps>(handler) {
public FileSystemProps perform() {
try {
Path target = vertx.resolveFile(path).toPath();
FileStore fs = Files.getFileStore(target);
return new FileSystemPropsImpl(fs.getTotalSpace(), fs.getUnallocatedSpace(), fs.getUsableSpace());
} catch (IOException e) {
throw new FileSystemException(e);
}
}
};
}
protected abstract class BlockingAction<T> implements Handler<Promise<T>> {
private final Handler<AsyncResult<T>> handler;
protected final ContextInternal context;
public BlockingAction(Handler<AsyncResult<T>> handler) {
this.handler = handler;
this.context = vertx.getOrCreateContext();
}
public void run() {
context.executeBlockingInternal(this, handler);
}
@Override
public void handle(Promise<T> fut) {
try {
T result = perform();
fut.complete(result);
} catch (Exception e) {
fut.fail(e);
}
}
public abstract T perform();
}
static Set<CopyOption> toCopyOptionSet(CopyOptions copyOptions) {
Set<CopyOption> copyOptionSet = new HashSet<>();
if (copyOptions.isReplaceExisting()) copyOptionSet.add(StandardCopyOption.REPLACE_EXISTING);
if (copyOptions.isCopyAttributes()) copyOptionSet.add(StandardCopyOption.COPY_ATTRIBUTES);
if (copyOptions.isAtomicMove()) copyOptionSet.add(StandardCopyOption.ATOMIC_MOVE);
if (copyOptions.isNofollowLinks()) copyOptionSet.add(LinkOption.NOFOLLOW_LINKS);
return copyOptionSet;
}
}
FileSystemImpl
DEFAULT_OPTIONS: CopyOptions
vertx: VertxInternal
toCopyOptionSet(CopyOptions): Set<CopyOption>
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