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Groovy: A powerful, dynamic language for the JVM

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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 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 James Strachan
 */
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();
    }
}