/*
* Copyright (C) 2012-2013 Geometer Plus <contact@geometerplus.com>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
package org.geometerplus.fbreader.formats.fb2;
import java.util.List;
import org.geometerplus.zlibrary.core.filesystem.ZLFile;
abstract class FB2Util {
static ZLFile getRealFB2File(ZLFile file) {
final String name = file.getShortName().toLowerCase();
if (name.endsWith(".fb2.zip") && file.isArchive()) {
final List<ZLFile> children = file.children();
if (children == null) {
return null;
}
ZLFile candidate = null;
for (ZLFile item : children) {
if ("fb2".equals(item.getExtension())) {
if (candidate == null) {
candidate = item;
} else {
return null;
}
}
}
return candidate;
} else {
return file;
}
}
}