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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 nokogiri.internals.c14n;
import java.util.ArrayList;
import java.util.List;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* @author Christian Geuer-Pollmann
*/
public class HelperNodeList implements NodeList
{
/** Field nodes */
List<Node> nodes = new ArrayList<Node>();
boolean allNodesMustHaveSameParent = false;
/**
*
*/
public
HelperNodeList()
{
this(false);
}
/**
* @param allNodesMustHaveSameParent
*/
public
HelperNodeList(boolean allNodesMustHaveSameParent)
{
this.allNodesMustHaveSameParent = allNodesMustHaveSameParent;
}
/**
* Method item
*
* @param index
* @return node with index i
*/
public Node
item(int index)
{
return nodes.get(index);
}
/**
* Method getLength
*
* @return length of the list
*/
public int
getLength()
{
return nodes.size();
}
/**
* Method appendChild
*
* @param node
* @throws IllegalArgumentException
*/
public void
appendChild(Node node) throws IllegalArgumentException
{
if (this.allNodesMustHaveSameParent && this.getLength() > 0
&& this.item(0).getParentNode() != node.getParentNode()) {
throw new IllegalArgumentException("Nodes have not the same Parent");
}
nodes.add(node);
}
/**
* @return the document that contains this nodelist
*/
public Document
getOwnerDocument()
{
if (this.getLength() == 0) {
return null;
}
return XMLUtils.getOwnerDocument(this.item(0));
}
}
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