104 lines
3.2 KiB
Java
104 lines
3.2 KiB
Java
/*
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* AppleCommander - An Apple ][ image utility.
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* Copyright (C) 2002-2022 by Robert Greene
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* robgreene at users.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package com.webcodepro.applecommander.storage.os.prodos;
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import java.util.List;
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import com.webcodepro.applecommander.storage.DirectoryEntry;
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import com.webcodepro.applecommander.storage.DiskException;
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import com.webcodepro.applecommander.storage.DiskFullException;
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import com.webcodepro.applecommander.storage.FileEntry;
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/**
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* Implement directory functionality.
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* <p>
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* Date Created: Mar 2, 2003
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* @author Rob Greene
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*
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* Changed at: Dec 1, 2017
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* @author Lisias Toledo
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*/
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public class ProdosDirectoryEntry extends ProdosFileEntry implements DirectoryEntry {
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private ProdosSubdirectoryHeader subdirectoryHeader;
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/**
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* Constructor for ProdosDirectoryEntry.
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*/
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public ProdosDirectoryEntry(ProdosFormatDisk disk, int block, int offset,
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ProdosSubdirectoryHeader subdirectoryHeader) {
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super(disk, block, offset);
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this.subdirectoryHeader = subdirectoryHeader;
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subdirectoryHeader.setProdosDirectoryEntry(this);
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}
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/**
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* Get the subdirectory header.
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*/
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public ProdosSubdirectoryHeader getSubdirectoryHeader() {
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return this.subdirectoryHeader;
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}
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/**
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* Retrieve the list of files in this directory.
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* Note that if this is not a directory, the return
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* value should be null. If this a directory, the
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* return value should always be a list - a directory
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* with 0 entries returns an empty list.
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* @throws DiskException
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*/
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public List<FileEntry> getFiles() throws DiskException {
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return getDisk().getFiles(getSubdirectoryHeader().getFileEntryBlock());
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}
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/**
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* Create a new FileEntry.
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*/
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public ProdosFileEntry createFile() throws DiskFullException {
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return getDisk().createFile(getSubdirectoryHeader());
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}
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/**
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* Identify if additional directories can be created. This
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* may indicate that directories are not available to this
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* operating system or simply that the disk image is "locked"
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* to writing.
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*/
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public boolean canCreateDirectories() {
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return true;
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}
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/**
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* Indicates if this disk image can create a file.
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* If not, the reason may be as simple as it has not been implemented
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* to something specific about the disk.
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*/
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public boolean canCreateFile() {
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return true;
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}
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/**
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* Create a new DirectoryEntry.
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* @see com.webcodepro.applecommander.storage.DirectoryEntry#createDirectory(String)
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*/
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public DirectoryEntry createDirectory(String name) throws DiskFullException {
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return getDisk().createDirectory(getSubdirectoryHeader(), name);
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}
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}
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