1.0.0-beta1

graalvm/elide.runtime.gvm.internals.vfs/AbstractDelegateVFS

AbstractDelegateVFS

abstract class AbstractDelegateVFS<VFS : AbstractBaseVFS<VFS>> : AbstractBaseVFS<VFS> , GuestVFS

VFS: Backed Implementation

This class implements a virtual-file-system for guest use, backed by another "backing" file-system, to which calls are proxied from the guest. Before proxying each call, I/O security policy is checked and enforced, and logging is performed.

The provided config is expected to be fully loaded; that is, it should have a loaded filesystem tree and data-bag from which to pull file system information. The backing file system used by this class is closed when this class closes.

Parameters

VFS

Concrete virtual file system type under implementation.

config

Effective guest VFS configuration to apply.

backing

Backing file-system instance which implements the FS to use.

Inheritors

EmbeddedGuestVFSImpl

Properties

abstract val compound: Boolean

abstract val deletable: Boolean

abstract val host: Boolean

abstract val logging: Logger

Subclass API: Logging.

supportsSymlinks

abstract val supportsSymlinks: Boolean

abstract val virtual: Boolean

abstract val writable: Boolean

Functions

allowsHostFileAccess

abstract fun allowsHostFileAccess(): Boolean

allowsHostSocketAccess

abstract fun allowsHostSocketAccess(): Boolean

open override fun checkAccess(path: Path, modes: MutableSet<out AccessMode>, vararg linkOptions: LinkOption)

fun checkPolicy(type: AccessType, domain: AccessDomain, path: Path, scope: AccessScope = AccessScope.UNSPECIFIED): AccessResponse

open override fun checkPolicy(request: AccessRequest): AccessResponse

Subclass API: Policy check.

open override fun close()

open override fun copy(source: Path, target: Path, vararg options: CopyOption?)

createDirectory

open override fun createDirectory(dir: Path, vararg attrs: FileAttribute<*>)

open override fun createLink(link: Path, existing: Path)

createSymbolicLink

open override fun createSymbolicLink(link: Path, target: Path, vararg attrs: FileAttribute<*>?)

open override fun delete(path: Path)

open fun existsAny(path: Path): Boolean

open override fun getEncoding(path: Path): Charset

open override fun getMimeType(path: Path): String?

open override fun getPath(vararg segments: String): Path

Subclass API: Parse a path.

getPathSeparator

open override fun getPathSeparator(): String

open override fun getSeparator(): String

getTempDirectory

open override fun getTempDirectory(): Path

open override fun isSameFile(path1: Path, path2: Path, vararg options: LinkOption): Boolean

open override fun move(source: Path, target: Path, vararg options: CopyOption?)

open override fun newByteChannel(path: Path, options: MutableSet<out OpenOption>, vararg attrs: FileAttribute<*>): SeekableByteChannel

newDirectoryStream

open override fun newDirectoryStream(dir: Path, filter: DirectoryStream.Filter<in Path>): DirectoryStream<Path>

open override fun parsePath(uri: URI): Path

open override fun parsePath(path: String): Path

open override fun readAttributes(path: Path, attributes: String, vararg options: LinkOption): MutableMap<String, Any>

open override fun readStream(path: Path, vararg options: OpenOption): InputStream

Subclass API: Read a file.

readSymbolicLink

open override fun readSymbolicLink(link: Path): Path

open override fun setAttribute(path: Path, attribute: String, value: Any, vararg options: LinkOption)

setCurrentWorkingDirectory

open override fun setCurrentWorkingDirectory(currentWorkingDirectory: Path)

open override fun toAbsolutePath(path: Path): Path

open override fun toRealPath(path: Path, vararg linkOptions: LinkOption): Path

open override fun writeStream(path: Path, vararg options: OpenOption): OutputStream

Subclass API: Write a file.