IoEngine_base.java

/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012-2017 gnosygnu@gmail.com

XOWA is licensed under the terms of the General Public License (GPL) Version 3,
or alternatively under the terms of the Apache License Version 2.0.

You may use XOWA according to either of these licenses as is most appropriate
for your project on a case-by-case basis.

The terms of each license can be found in the source code repository:

GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
*/
package gplx.core.ios; import gplx.*; import gplx.core.*;
import gplx.core.ios.streams.*;
public abstract class IoEngine_base implements IoEngine {
	public abstract String		Key();
	public abstract boolean		ExistsFil_api(Io_url url);
	public abstract void		SaveFilText_api(IoEngine_xrg_saveFilStr args);
	public abstract String		LoadFilStr(IoEngine_xrg_loadFilStr args);
	public abstract void		DeleteFil_api(IoEngine_xrg_deleteFil args);
	public abstract void		CopyFil(IoEngine_xrg_xferFil args);
	public abstract void		MoveFil(IoEngine_xrg_xferFil args);
	public abstract IoItmFil	QueryFil(Io_url url);
	public abstract void		UpdateFilAttrib(Io_url url, IoItmAttrib atr); // will fail if file does not exists
	public abstract void		UpdateFilModifiedTime(Io_url url, DateAdp modified);
	public abstract IoStream	OpenStreamRead(Io_url url);
	public abstract IoStream	OpenStreamWrite(IoEngine_xrg_openWrite args);
	public abstract void		XferFil(IoEngine_xrg_xferFil args);
	public abstract boolean		Truncate_fil(Io_url url, long size);

	public abstract boolean		ExistsDir(Io_url url);
	public abstract void		CreateDir(Io_url url); // creates all folder levels (EX: C:\a\b\c\ will create C:\a\ and C:\a\b\). will not fail if called on already existing folders.
	public abstract void		DeleteDir(Io_url url);
	public abstract void		MoveDir(Io_url src, Io_url trg);		// will fail if trg exists
	public abstract void		CopyDir(Io_url src, Io_url trg);
	public abstract IoItmDir	QueryDir(Io_url url);

	public abstract void		DeleteDirDeep(IoEngine_xrg_deleteDir args);
	public abstract void		MoveDirDeep(IoEngine_xrg_xferDir args);		// will fail if trg exists
	public abstract IoItmDir	QueryDirDeep(IoEngine_xrg_queryDir args);
	public abstract void		XferDir(IoEngine_xrg_xferDir args);
	public abstract boolean		DownloadFil(IoEngine_xrg_downloadFil xrg);
	public abstract Io_stream_rdr DownloadFil_as_rdr(IoEngine_xrg_downloadFil xrg);

	public void RecycleFil(IoEngine_xrg_recycleFil xrg) {
		Io_url recycleUrl = xrg.RecycleUrl();
		if (recycleUrl.Type_fil()) {
			this.MoveFil(IoEngine_xrg_xferFil.move_(xrg.Url(), recycleUrl).Overwrite_(false).ReadOnlyFails_(true).MissingFails_(xrg.MissingFails()));
			IoRecycleBin.Instance.Regy_add(xrg);
		}
		else
			this.MoveDirDeep(IoEngine_xrg_xferDir.move_(xrg.Url(), recycleUrl).Overwrite_(false).ReadOnlyFails_(true));
	}
}