/*
 * Copyright 2003-2007 the original author or authors.
 *
 * 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 groovy.util;

import java.util.ArrayList;
import java.util.Map;

/**
 * A helper class for creating nested trees of Node objects for 
 * handling arbitrary data
 * 
 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
 * @version $Revision$
 */
public class NodeBuilder extends BuilderSupport {

    public static NodeBuilder newInstance() {
        return new NodeBuilder();
    }

    protected void setParent(Object parent, Object child) {
    }

    protected Object createNode(Object name) {
        return new Node(getCurrentNode(), name, new ArrayList());
    }

    protected Object createNode(Object name, Object value) {
        return new Node(getCurrentNode(), name, value);
    }

    protected Object createNode(Object name, Map attributes) {
        return new Node(getCurrentNode(), name, attributes, new ArrayList());
    }

    protected Object createNode(Object name, Map attributes, Object value) {
        return new Node(getCurrentNode(), name, attributes, value);
    }

    protected Node getCurrentNode() {
        return (Node) getCurrent();
    }
}