CC-Tweaked/src/main/java/dan200/computercraft/core/filesystem/SubMount.java

70 lines
1.8 KiB
Java

/*
* This file is part of ComputerCraft - http://www.computercraft.info
* Copyright Daniel Ratcliffe, 2011-2021. Do not distribute without permission.
* Send enquiries to dratcliffe@gmail.com
*/
package dan200.computercraft.core.filesystem;
import dan200.computercraft.api.filesystem.IMount;
import javax.annotation.Nonnull;
import java.io.IOException;
import java.nio.channels.ReadableByteChannel;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.List;
public class SubMount implements IMount
{
private final IMount parent;
private final String subPath;
public SubMount( IMount parent, String subPath )
{
this.parent = parent;
this.subPath = subPath;
}
@Override
public boolean exists( @Nonnull String path ) throws IOException
{
return parent.exists( getFullPath( path ) );
}
@Override
public boolean isDirectory( @Nonnull String path ) throws IOException
{
return parent.isDirectory( getFullPath( path ) );
}
@Override
public void list( @Nonnull String path, @Nonnull List<String> contents ) throws IOException
{
parent.list( getFullPath( path ), contents );
}
@Override
public long getSize( @Nonnull String path ) throws IOException
{
return parent.getSize( getFullPath( path ) );
}
@Nonnull
@Override
public ReadableByteChannel openForRead( @Nonnull String path ) throws IOException
{
return parent.openForRead( getFullPath( path ) );
}
@Nonnull
@Override
public BasicFileAttributes getAttributes( @Nonnull String path ) throws IOException
{
return parent.getAttributes( getFullPath( path ) );
}
private String getFullPath( String path )
{
return path.isEmpty() ? subPath : subPath + "/" + path;
}
}