CurrentResolver.java

/*
Copyright (C) 2007 Marco Aurélio Graciotto Silva <magsilva@gmail.com>

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 captor.projectsystem.build;

import javax.xml.namespace.QName;
import javax.xml.xpath.XPathVariableResolver;

import org.w3c.dom.Node;

import captor.projectsystem.build.buildutil.XMLUtil;

public class CurrentResolver implements XPathVariableResolver
{
	public Object resolveVariable(QName var)
	{
		if (var == null) {
			throw new NullPointerException("The variable name cannot be null");
		}
		
		Object result = null;

		if (var.equals(new QName("current"))) {
			result = currentValue();
		}
		
		return result;
	}

	public static String currentValue()
	{
		Node current = BuildProject.currentNodes.peek();
		String result = XMLUtil.getXPath(current);

		return result;
	}
}