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package org.apache.maven.project.harness;
/*
* 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.
*/
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.jxpath.ri.QName;
import org.apache.commons.jxpath.ri.model.NodeIterator;
import org.apache.commons.jxpath.ri.model.NodePointer;
import org.codehaus.plexus.util.xml.Xpp3Dom;
/**
* An attribute iterator for JXPath to support <code>Xpp3Dom</code>.
*
* @author Benjamin Bentmann
*/
class Xpp3DomAttributeIterator
implements NodeIterator
{
private NodePointer parent;
private Xpp3Dom node;
private List<Map.Entry<String, String>> attributes;
private Map.Entry<String, String> attribute;
private int position;
public Xpp3DomAttributeIterator( NodePointer parent, QName qname )
{
this.parent = parent;
this.node = (Xpp3Dom) parent.getNode();
Map<String, String> map = new LinkedHashMap<String, String>();
for ( String name : this.node.getAttributeNames() )
{
if ( name.equals( qname.getName() ) || "*".equals( qname.getName() ) )
{
String value = this.node.getAttribute( name );
map.put( name, value );
}
}
this.attributes = new ArrayList<Map.Entry<String, String>>( map.entrySet() );
}
public NodePointer getNodePointer()
{
if ( position == 0 )
{
setPosition( 1 );
}
return ( attribute == null ) ? null : new Xpp3DomAttributePointer( parent, attribute );
}
public int getPosition()
{
return position;
}
public boolean setPosition( int position )
{
this.position = position;
attribute = ( position > 0 && position <= attributes.size() ) ? attributes.get( position - 1 ) : null;
return attribute != null;
}
}
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