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* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This 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 software 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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package org.richfaces.model.iterators;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.faces.component.UIComponent;
import org.richfaces.component.ComponentPredicates;
import org.richfaces.component.TreeModelAdaptor;
import org.richfaces.component.TreeModelRecursiveAdaptor;
import org.richfaces.model.SequenceRowKey;
import org.richfaces.model.TreeDataModelTuple;
import com.google.common.collect.ForwardingIterator;
import com.google.common.collect.Iterables;
import com.google.common.collect.Iterators;
import com.google.common.collect.Lists;
public class DeclarativeTreeDataModelCompositeTuplesIterator extends ForwardingIterator<TreeDataModelTuple> {
private UIComponent component;
private SequenceRowKey key;
private Iterator<TreeDataModelTuple> iterator;
public DeclarativeTreeDataModelCompositeTuplesIterator(UIComponent component, SequenceRowKey key) {
super();
this.component = component;
this.key = key;
}
@Override
protected Iterator<TreeDataModelTuple> delegate() {
if (iterator == null) {
List<Iterator<TreeDataModelTuple>> list = Lists.newArrayList();
if (component instanceof TreeModelRecursiveAdaptor) {
TreeModelRecursiveAdaptor parentRecursiveAdaptor = (TreeModelRecursiveAdaptor) component;
Object nodes = parentRecursiveAdaptor.getNodes();
Iterator<TreeDataModelTuple> tuplesIterator = createTuplesIterator(component, nodes);
if (tuplesIterator != null) {
list.add(tuplesIterator);
}
}
if (component.getChildCount() > 0) {
for (UIComponent child : Iterables.filter(component.getChildren(), ComponentPredicates.isRendered())) {
Object nodes = null;
if (child instanceof TreeModelRecursiveAdaptor) {
TreeModelRecursiveAdaptor treeModelRecursiveAdaptor = (TreeModelRecursiveAdaptor) child;
nodes = treeModelRecursiveAdaptor.getRoots();
} else if (child instanceof TreeModelAdaptor) {
TreeModelAdaptor treeModelAdaptor = (TreeModelAdaptor) child;
nodes = treeModelAdaptor.getNodes();
}
Iterator<TreeDataModelTuple> tuplesIterator = createTuplesIterator(child, nodes);
if (tuplesIterator != null) {
list.add(tuplesIterator);
}
}
}
iterator = Iterators.concat(list.iterator());
}
return iterator;
}
private Iterator<TreeDataModelTuple> createTuplesIterator(UIComponent component, Object nodes) {
if (nodes != null) {
if (nodes instanceof Iterable<?>) {
Iterable<?> iterable = (Iterable<?>) nodes;
return new IterableDataTuplesIterator(key, iterable.iterator(), component);
} else if (nodes instanceof Map<?, ?>) {
Map<?, ?> map = (Map<?, ?>) nodes;
return new MapDataTuplesIterator(key, map, component);
}
}
return null;
}
}