73 lines
2.1 KiB
Java
73 lines
2.1 KiB
Java
/*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2013 AlgorithmX2
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
* this software and associated documentation files (the "Software"), to deal in
|
|
* the Software without restriction, including without limitation the rights to
|
|
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
|
* the Software, and to permit persons to whom the Software is furnished to do so,
|
|
* subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all
|
|
* copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
|
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
|
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
|
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
package appeng.api.config;
|
|
|
|
|
|
public enum AccessRestriction
|
|
{
|
|
NO_ACCESS( 0 ), READ( 1 ), WRITE( 2 ), READ_WRITE( 3 );
|
|
|
|
private final int permissionBit;
|
|
|
|
AccessRestriction( final int v )
|
|
{
|
|
this.permissionBit = v;
|
|
}
|
|
|
|
public boolean hasPermission( final AccessRestriction ar )
|
|
{
|
|
return ( this.permissionBit & ar.permissionBit ) == ar.permissionBit;
|
|
}
|
|
|
|
public AccessRestriction restrictPermissions( final AccessRestriction ar )
|
|
{
|
|
return this.getPermByBit( this.permissionBit & ar.permissionBit );
|
|
}
|
|
|
|
private AccessRestriction getPermByBit( final int bit )
|
|
{
|
|
switch( bit )
|
|
{
|
|
default:
|
|
case 0:
|
|
return NO_ACCESS;
|
|
case 1:
|
|
return READ;
|
|
case 2:
|
|
return WRITE;
|
|
case 3:
|
|
return READ_WRITE;
|
|
}
|
|
}
|
|
|
|
public AccessRestriction addPermissions( final AccessRestriction ar )
|
|
{
|
|
return this.getPermByBit( this.permissionBit | ar.permissionBit );
|
|
}
|
|
|
|
public AccessRestriction removePermissions( final AccessRestriction ar )
|
|
{
|
|
return this.getPermByBit( this.permissionBit & ( ~ar.permissionBit ) );
|
|
}
|
|
} |