/*

 * CDDL HEADER START

 *

 * The contents of this file are subject to the terms of the

 * Common Development and Distribution License (the "License").

 * You may not use this file except in compliance with the License.

 *

 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

 * or http://www.opensolaris.org/os/licensing.

 * See the License for the specific language governing permissions

 * and limitations under the License.

 *

 * When distributing Covered Code, include this CDDL HEADER in each

 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.

 * If applicable, add the following below this CDDL HEADER, with the

 * fields enclosed by brackets "[]" replaced with your own identifying

 * information: Portions Copyright [yyyy] [name of copyright owner]

 *

 * CDDL HEADER END

 */

/*

 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.

 * Use is subject to license terms.

 *

 * ident	"@(#)XMLUtil.java	1.2	08/05/11 SMI"

 */

package org.opensolaris.os.vp.util;

import java.util.NoSuchElementException;

import org.w3c.dom.*;

public class XMLUtil {

    public static String getTextContent(Element element) {

	StringBuffer buffer = new StringBuffer();

	element.normalize();

	NodeList children = element.getChildNodes();

	for (int i = 0, n = children.getLength(); i < n; i++) {

	    Node child = children.item(i);

	    if (child.getNodeType() == Node.TEXT_NODE) {

		buffer.append(child.getNodeValue());

	    }

	}

	return buffer.toString().trim();

    }

    public static String getFullPath(Node node) {

	StringBuffer buffer = new StringBuffer();

	while (node != null) {

	    buffer.insert(0, node.getNodeName());

	    char separator = '/';

	    if (node instanceof Attr) {

		separator = '@';

	    }

	    buffer.insert(0, separator);

	    node = node.getParentNode();

	}

	return buffer.toString();

    }

    public static String getAttribute(Element element, String name) {

	String value = element.getAttribute(name);

	if (value != null && value.length() != 0) {

	    return value;

	}

	throw new NoSuchElementException(String.format(

	    "Element <%s> has no \"%s\" attribute", element, name));

    }

    public static boolean getBooleanAttribute(Element element, String name) {

	return Boolean.parseBoolean(getAttribute(element, name));

    }

    public static int getIntegerAttribute(Element element, String name) {

	return Integer.parseInt(getAttribute(element, name));

    }

}