Xob_decompress_bz2_cmd.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.xowa.bldrs.cmds.utils; import gplx.*; import gplx.xowa.*; import gplx.xowa.bldrs.*; import gplx.xowa.bldrs.cmds.*;
import gplx.core.ios.*; import gplx.core.threads.*; import gplx.core.envs.*;
import gplx.xowa.bldrs.wkrs.*;
public class Xob_decompress_bz2_cmd extends Xob_itm_basic_base implements Xob_cmd {
	public Xob_decompress_bz2_cmd(Xob_bldr bldr, Xowe_wiki wiki) {this.Cmd_ctor(bldr, wiki);}		
	public String Cmd_key() {return Xob_cmd_keys.Key_decompress_bz2;}
	public void Cmd_init(Xob_bldr bldr) {}
	public void Cmd_bgn(Xob_bldr bldr) {}
	public void Cmd_run() {
		if (Io_mgr.Instance.ExistsFil(trg)) return; // file already exists; don't decompress again
		usr_dlg.Note_many(GRP_KEY, "bgn", "decompressing ~{0}", src.Raw(), trg.Raw());
		Decompress(bldr.App(), src.Raw(), trg);
	}
	public void Cmd_end() {}
	public void Cmd_term() {}
	@Override public Object Invk(GfsCtx ctx, int ikey, String k, GfoMsg m) {
		if		(ctx.Match(k, Invk_src_))				this.Src_(m.ReadIoUrl("v"));
		else	return super.Invk(ctx, ikey, k, m);
		return this;
	}	private static final String Invk_src_ = "src_";
	private void Src_(Io_url v) {
		src = v;
		trg = bldr.App().Fsys_mgr().Wiki_dir().GenSubFil_nest(wiki.Domain_str(), v.NameOnly());	// NOTE: NameOnly() will take "enwiki.xml.bz2" and make it "enwiki.xml"
	}	Io_url src, trg;
	static final String GRP_KEY = "xowa.bldr.cmd.decompress_bz2";
	public static boolean Decompress(Xoae_app app, String src_fil, Io_url trg_fil) {
		Io_mgr.Instance.CreateDirIfAbsent(trg_fil.OwnerDir());	// 7zip will fail if dir does not exist
		Process_adp decompress = app.Prog_mgr().App_decompress_bz2();
		decompress.Prog_dlg_(app.Usr_dlg()).Run_mode_(Process_adp.Run_mode_async);
		decompress.Run(src_fil, trg_fil, trg_fil.OwnerDir().Xto_api());
		while (decompress.Exit_code() == Process_adp.Exit_init) {
			String size = gplx.core.ios.Io_size_.To_str(Io_mgr.Instance.QueryFil(trg_fil).Size());
			app.Usr_dlg().Prog_many(GRP_KEY, "decompress", "decompressing: ~{0}", size);
			Thread_adp_.Sleep(1000);
		}
		return true;
	}
}