|
Scala example source code file (VirtualFile.scala)
The VirtualFile.scala Scala example source code/* NSC -- new Scala compiler * Copyright 2005-2013 LAMP/EPFL * @author Martin Odersky */ package scala package reflect package io import java.io.{ ByteArrayInputStream, ByteArrayOutputStream, InputStream, OutputStream, File => JFile } /** This class implements an in-memory file. * * @author Philippe Altherr * @version 1.0, 23/03/2004 * * ''Note: This library is considered experimental and should not be used unless you know what you are doing.'' */ class VirtualFile(val name: String, override val path: String) extends AbstractFile { /** * Initializes this instance with the specified name and an * identical path. * * @param name the name of the virtual file to be created * @return the created virtual file */ def this(name: String) = this(name, name) override def hashCode = path.hashCode override def equals(that: Any) = that match { case x: VirtualFile => x.path == path case _ => false } private var content = Array.emptyByteArray def absolute = this /** Returns null. */ def file: JFile = null override def sizeOption: Option[Int] = Some(content.length) def input : InputStream = new ByteArrayInputStream(content) override def output: OutputStream = { new ByteArrayOutputStream() { override def close() { super.close() content = toByteArray() } } } def container: AbstractFile = NoAbstractFile /** Is this abstract file a directory? */ def isDirectory: Boolean = false /** @inheritdoc */ override def isVirtual: Boolean = true // private var _lastModified: Long = 0 // _lastModified /** Returns the time that this abstract file was last modified. */ // !!! Except it doesn't - it's private and never set - so I replaced it // with constant 0 to save the field. def lastModified: Long = 0 /** Returns all abstract subfiles of this abstract directory. */ def iterator: Iterator[AbstractFile] = { assert(isDirectory, "not a directory '" + this + "'") Iterator.empty } /** Does this abstract file denote an existing file? */ def create() { unsupported() } /** Delete the underlying file or directory (recursively). */ def delete() { unsupported() } /** * Returns the abstract file in this abstract directory with the * specified name. If there is no such file, returns null. The * argument "directory" tells whether to look for a directory or * or a regular file. */ def lookupName(name: String, directory: Boolean): AbstractFile = { assert(isDirectory, "not a directory '" + this + "'") null } /** Returns an abstract file with the given name. It does not * check that it exists. */ def lookupNameUnchecked(name: String, directory: Boolean) = unsupported() } Other Scala source code examplesHere is a short list of links related to this Scala VirtualFile.scala source code file: |
... this post is sponsored by my books ... | |
#1 New Release! |
FP Best Seller |
Copyright 1998-2024 Alvin Alexander, alvinalexander.com
All Rights Reserved.
A percentage of advertising revenue from
pages under the /java/jwarehouse
URI on this website is
paid back to open source projects.