154 lines
3.4 KiB
Java
154 lines
3.4 KiB
Java
/*
|
|
* AppleCommander - An Apple ][ image utility.
|
|
* Copyright (C) 2002 by Robert Greene
|
|
* robgreene at users.sourceforge.net
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
* This program 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
|
|
* for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
package com.webcodepro.applecommander.storage;
|
|
|
|
import java.util.Date;
|
|
|
|
/**
|
|
* Represents the common Prodos entry behavior.
|
|
* <p>
|
|
* Date created: Oct 5, 2002 10:55:41 PM
|
|
* @author: Rob Greene
|
|
*/
|
|
public class ProdosCommonEntry {
|
|
private byte[] fileEntry;
|
|
|
|
/**
|
|
* Constructor for ProdosCommonEntry.
|
|
*/
|
|
public ProdosCommonEntry(byte[] fileEntry) {
|
|
super();
|
|
this.fileEntry = fileEntry;
|
|
}
|
|
|
|
/**
|
|
* Get the fileEntry bytes.
|
|
*/
|
|
protected byte[] getFileEntry() {
|
|
return fileEntry;
|
|
}
|
|
|
|
/**
|
|
* Get storage type.
|
|
*/
|
|
protected int getStorageType() {
|
|
return AppleUtil.getUnsignedByte(getFileEntry()[0]) >> 4;
|
|
}
|
|
|
|
/**
|
|
* Indicates if this is a "seedling" file (only one data block).
|
|
*/
|
|
public boolean isSeedlingFile() {
|
|
return getStorageType() == 0x01;
|
|
}
|
|
|
|
/**
|
|
* Indicates if this is a "sapling" file (2 to 256 data blocks).
|
|
*/
|
|
public boolean isSaplingFile() {
|
|
return getStorageType() == 0x02;
|
|
}
|
|
|
|
/**
|
|
* Indicates if this is a "tree" file (257 to 32768 data blocks).
|
|
*/
|
|
public boolean isTreeFile() {
|
|
return getStorageType() == 0x03;
|
|
}
|
|
|
|
/**
|
|
* Indicates if this is a subdirectory header entry.
|
|
*/
|
|
public boolean isSubdirectoryHeader() {
|
|
return getStorageType() == 0x0e;
|
|
}
|
|
|
|
/**
|
|
* Indicates if this is a volume header entry.
|
|
*/
|
|
public boolean isVolumeHeader() {
|
|
return getStorageType() == 0x0f;
|
|
}
|
|
|
|
/**
|
|
* Get the creation date.
|
|
*/
|
|
public Date getCreationDate() {
|
|
return AppleUtil.getProdosDate(getFileEntry(), 0x18);
|
|
}
|
|
|
|
/**
|
|
* Get the version of ProDOS that created this file.
|
|
*/
|
|
public int getProdosVersion() {
|
|
return AppleUtil.getUnsignedByte(getFileEntry()[0x1c]);
|
|
}
|
|
|
|
/**
|
|
* Get the minimum version of ProDOS which can access this file.
|
|
*/
|
|
public int getMinimumProdosVersion() {
|
|
return AppleUtil.getUnsignedByte(getFileEntry()[0x1d]);
|
|
}
|
|
|
|
/**
|
|
* Get the access byte.
|
|
*/
|
|
protected byte getAccess() {
|
|
return getFileEntry()[0x1e];
|
|
}
|
|
|
|
/**
|
|
* Indicates if this file may be destroyed.
|
|
*/
|
|
public boolean canDestroy() {
|
|
return AppleUtil.isBitSet(getAccess(), 7);
|
|
}
|
|
|
|
/**
|
|
* Indicates if this file may be renamed.
|
|
*/
|
|
public boolean canRename() {
|
|
return AppleUtil.isBitSet(getAccess(), 6);
|
|
}
|
|
|
|
/**
|
|
* Indicates if this file has changed since last backup.
|
|
*/
|
|
public boolean hasChanged() {
|
|
return AppleUtil.isBitSet(getAccess(), 5);
|
|
}
|
|
|
|
/**
|
|
* Indicates if this file may be written.
|
|
*/
|
|
public boolean canWrite() {
|
|
return AppleUtil.isBitSet(getAccess(), 1);
|
|
}
|
|
|
|
/**
|
|
* Indicates if this file may be read.
|
|
*/
|
|
public boolean canRead() {
|
|
return AppleUtil.isBitSet(getAccess(), 0);
|
|
}
|
|
|
|
}
|