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'databene commons' is an open source Java library by Volker Bergmann.
It provides extensions to the Java core library by utility classes, abstract concepts
and concrete implementations.
/*
* Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.databene.commons.file;
import org.databene.commons.Element;
import org.databene.commons.Visitor;
import org.databene.commons.visitor.WrapperElement;
import java.util.Collection;
import java.util.ArrayList;
import java.util.List;
import java.io.File;
/**
* Element implementation (of the Visitor Design Pattern) for a File.
* Created: 04.02.2007 08:10:05
* @author Volker Bergmann
*/
public class FileElement extends WrapperElement {
public FileElement(File file) {
super(file);
}
@Override
protected Collection> getChildren(Visitor visitor) {
if (wrappedObject.isFile())
return new ArrayList>();
File[] content = wrappedObject.listFiles();
if (content == null)
content = new File[0];
List> children = new ArrayList>(content.length);
for (File file : content)
children.add(new FileElement(file));
return children;
}
}