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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.List;
import org.apache.commons.jxpath.ri.QName;
import org.apache.commons.jxpath.ri.compiler.NodeTest;
import org.apache.commons.jxpath.ri.model.NodeIterator;
import org.apache.commons.jxpath.ri.model.NodePointer;
import org.codehaus.plexus.util.xml.Xpp3Dom;
/**
* A node pointer for JXPath to support <code>Xpp3Dom</code>.
*
* @author Benjamin Bentmann
*/
class Xpp3DomNodePointer
extends NodePointer
{
private Xpp3Dom node;
public Xpp3DomNodePointer( Xpp3Dom node )
{
super( null );
this.node = node;
}
public Xpp3DomNodePointer( NodePointer parent, Xpp3Dom node )
{
super( parent );
this.node = node;
}
@Override
public int compareChildNodePointers( NodePointer pointer1, NodePointer pointer2 )
{
Xpp3Dom node1 = (Xpp3Dom) pointer1.getBaseValue();
Xpp3Dom node2 = (Xpp3Dom) pointer2.getBaseValue();
if ( node1 == node2 )
{
return 0;
}
for ( int i = 0; i < node.getChildCount(); i++ )
{
Xpp3Dom child = node.getChild( i );
if ( child == node1 )
{
return -1;
}
if ( child == node2 )
{
return 1;
}
}
return 0;
}
@Override
public Object getValue()
{
return getValue( node );
}
private static Object getValue( Xpp3Dom node )
{
if ( node.getValue() != null )
{
return node.getValue();
}
else
{
List<Object> children = new ArrayList<Object>();
for ( int i = 0; i < node.getChildCount(); i++ )
{
children.add( getValue( node.getChild( i ) ) );
}
return children;
}
}
@Override
public Object getBaseValue()
{
return node;
}
@Override
public Object getImmediateNode()
{
return node;
}
@Override
public int getLength()
{
return 1;
}
@Override
public QName getName()
{
return new QName( null, node.getName() );
}
@Override
public boolean isCollection()
{
return false;
}
@Override
public boolean isLeaf()
{
return node.getChildCount() <= 0;
}
@Override
public void setValue( Object value )
{
throw new UnsupportedOperationException();
}
@Override
public NodeIterator childIterator( NodeTest test, boolean reverse, NodePointer startWith )
{
return new Xpp3DomNodeIterator( this, test, reverse, startWith );
}
@Override
public NodeIterator attributeIterator( QName qname )
{
return new Xpp3DomAttributeIterator( this, qname );
}
}
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