/*
This library is part of octools
Copyright (c) 2000-2007 Valtech A/S (http://www.valtech.dk)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
Alkacon OpenCms and the OpenCms logo are registered trademarks of
Alkacon Software GmbH in Germany, the USA and other countries
For further information about Alkacon Software GmbH, please see the
company website: http://www.alkacon.com
For further information about OpenCms, please see the
project website: http://www.opencms.org
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package dk.valtech.octools.navigation;
import java.io.IOException;
import java.util.LinkedList;
import java.util.Queue;
import org.opencms.file.CmsObject;
import org.opencms.file.CmsResource;
import org.opencms.jsp.CmsJspNavElement;
public class FlatRecursiveNavigationIterator extends AbstractRecursiveNavigationIterator {
public FlatRecursiveNavigationIterator(CmsObject cms, int intLevel) {
super(cms, intLevel);
}
public FlatRecursiveNavigationIterator(CmsObject cms, String folder, int level) {
super(cms, folder, level);
}
public FlatRecursiveNavigationIterator(CmsObject cms, String folder) {
super(cms, folder);
}
public FlatRecursiveNavigationIterator(CmsObject cms) {
super(cms);
}
private Queue<LevelIterator> iterators;
private LevelIterator currentIterator;
@Override
protected LevelIterator getCurrentIterator() {
return currentIterator;
}
public boolean hasNext() {
return (currentIterator != null && currentIterator.hasNext()) || iterators.peek() != null;
}
public CmsJspNavElement next() {
// TODO implements fireing of events when levels changes.
CmsJspNavElement element = null;
if (currentIterator == null || !currentIterator.hasNext()) {
currentIterator = iterators.poll();
refreshCurrentLevel();
}
if (currentIterator != null) {
element = currentIterator.next();
if (endLevel > currentLevel && shouldExplode()) {
iterators.offer(new LevelIterator(getNavigationForFolder(getCurrentIterator().getCurrentElement().getResourceName())));
}
}
return element;
}
private void refreshCurrentLevel() {
if (currentIterator != null) {
String path = currentIterator.getCurrentElement(true).getResourceName();
if (path.endsWith("/") && path.length() > 1) {
path = path.substring(0, path.length()-1);
}
setCurrentLevel(CmsResource.getPathLevel(path));
}
}
@Override
protected void localInit() {
iterators = new LinkedList<LevelIterator>();
iterators.offer(new LevelIterator(getNavigationForFolder(getFolderForNewLevel(currentLevel))));
}
public void close() throws IOException {
}
}