SimpleNode.java

/* $Revision$ $Author$ $Date$ 
 *
 * Copyright (C) 2004-2007  The Chemistry Development Kit (CDK) project
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 * (or see http://www.gnu.org/copyleft/lesser.html)
 */
package org.openscience.cdk.smiles.smarts.parser;

import java.lang.reflect.Constructor;

/**
 * Basic implementation of AST nodes. Automatically generated by JJTree with
 * some manual changes.
 *
 * @author Dazhi Jiao
 * @cdk.created 2007-04-24
 * @cdk.module smarts
 * @cdk.githash
 * @cdk.keyword SMARTS AST
 */
public class SimpleNode implements Node, Cloneable {
	protected Node parent;

	protected Node[] children;

	protected int id;

	protected SMARTSParser parser;

	public SimpleNode(int i) {
		id = i;
	}

	public SimpleNode(SMARTSParser p, int i) {
		this(i);
		parser = p;
	}

	/* (non-Javadoc)
	 * @see java.lang.Object#clone()
	 */
	public Object clone() {
		Constructor constructor = null;
		Node clone = null;
		try {
			constructor = this.getClass().getConstructor(
					new Class[] { SMARTSParser.class, Integer.TYPE });
			clone = (Node) constructor.newInstance(new Object[] { parser,
					Integer.valueOf(id) });
		} catch (Exception ex) {
			ex.printStackTrace();
		}

		clone.jjtSetParent(parent);
		if (this.jjtGetNumChildren() > 0) {
			for (int i = 0; i < children.length; i++) {
				clone.jjtAddChild((Node) ((SimpleNode) children[i]).clone(), i);
			}
		}
		return clone;
	}

	public void jjtOpen() {
	}

	public void jjtClose() {
	}

	public void jjtSetParent(Node n) {
		parent = n;
	}

	public Node jjtGetParent() {
		return parent;
	}

	public void jjtAddChild(Node n, int i) {
		if (children == null) {
			children = new Node[i + 1];
		} else if (i >= children.length) {
			Node c[] = new Node[i + 1];
			System.arraycopy(children, 0, c, 0, children.length);
			children = c;
		}
		children[i] = n;
	}
	
	
	
	public void jjtRemoveChild(int i) {
		if (i >= children.length) return;
		Node[] c = new Node[children.length - 1];
		System.arraycopy( children, 0, c, 0, i );
		if (i < c.length) {
			System.arraycopy( children, i+1, c, i, c.length - i );
		}
		children = c;
	}

	public Node jjtGetChild(int i) {
		return children[i];
	}

	public int jjtGetNumChildren() {
		return (children == null) ? 0 : children.length;
	}

	/** Accept the visitor. * */
	public Object jjtAccept(SMARTSParserVisitor visitor, Object data) {
		return visitor.visit(this, data);
	}

	/** Accept the visitor. * */
	public Object childrenAccept(SMARTSParserVisitor visitor, Object data) {
		if (children != null) {
			for (int i = 0; i < children.length; ++i) {
				children[i].jjtAccept(visitor, data);
			}
		}
		return data;
	}

	/*
	 * You can override these two methods in subclasses of SimpleNode to
	 * customize the way the node appears when the tree is dumped. If your
	 * output uses more than one line you should override toString(String),
	 * otherwise overriding toString() is probably all you need to do.
	 */

	public String toString() {
		return SMARTSParserTreeConstants.jjtNodeName[id];
	}

	public String toString(String prefix) {
		return prefix + toString();
	}

	/*
	 * Override this method if you want to customize how the node dumps out its
	 * children.
	 */

	public void dump(String prefix) {
		System.out.println(toString(prefix));
		if (children != null) {
			for (int i = 0; i < children.length; ++i) {
				SimpleNode n = (SimpleNode) children[i];
				if (n != null) {
					n.dump(prefix + " ");
				}
			}
		}
	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public SMARTSParser getParser() {
		return parser;
	}

	public void setParser(SMARTSParser parser) {
		this.parser = parser;
	}
}