Calls getTextValue and returns a double value from XML Element - Android XML

Android examples for XML:XML Element

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Description

Calls getTextValue and returns a double value from XML Element

Demo Code

/**/* w ww.  j  a v a 2s . c om*/
 * RAMPART - Robust Automatic MultiPle AssembleR Toolkit
 * Copyright (C) 2013  Daniel Mapleson - TGAC
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 **/
//package com.java2s;
import org.w3c.dom.Element;

import org.w3c.dom.NodeList;

public class Main {
    /**
     * Calls getTextValue and returns a double value
     */
    public static double getDoubleValue(Element ele, String tagName) {
        return Double.parseDouble(getTextValue(ele, tagName));
    }

    /**
     * I take a xml element and the tag name, look for the tag and get
     * the text content
     * i.e for <employee><name>John</name></employee> xml snippet if
     * the Element points to employee node and tagName is 'name' I will return John
     */
    public static String getTextValue(Element ele, String tagName) {

        // Look for elements first
        NodeList nl = ele.getElementsByTagName(tagName);
        if (nl != null && nl.getLength() > 0) {
            Element el = (Element) nl.item(0);
            return el.getFirstChild().getNodeValue();
        }

        // If there are no elements look for an attribute
        return ele.getAttribute(tagName);
    }
}

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