get XML Node Value with default value - Java XML

Java examples for XML:DOM Node Value

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Description

get XML Node Value with default value

Demo Code


//package com.java2s;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    public static String getNodeValue(final Node parentNode,
            final String strNodeName, final String strDefaultValue) {
        return getNodeValue(parentNode.getChildNodes(), strNodeName,
                strDefaultValue);//from w w  w .  j a v  a2 s .  co m
    }

    public static int getNodeValue(final Node parentNode,
            final String strNodeName, final int iDefaultValue) {
        final String strValue = getNodeValue(parentNode.getChildNodes(),
                strNodeName, null);

        if (strValue != null) {
            return Integer.parseInt(strValue);
        }

        return iDefaultValue;
    }

    public static long getNodeValue(final Node parentNode,
            final String strNodeName, final long lDefaultValue) {
        final String strValue = getNodeValue(parentNode.getChildNodes(),
                strNodeName, null);

        if (strValue != null) {
            return Long.parseLong(strValue);
        }

        return lDefaultValue;
    }

    public static double getNodeValue(final Node parentNode,
            final String strNodeName, final double dDefaultValue) {
        final String strValue = getNodeValue(parentNode.getChildNodes(),
                strNodeName, null);

        if (strValue != null) {
            return Double.parseDouble(strValue);
        }

        return dDefaultValue;
    }

    public static String getNodeValue(final NodeList nodes,
            final String strNodeName, final String strDefaultValue) {
        for (int i = 0; i < nodes.getLength(); ++i) {
            final Node node = nodes.item(i);

            if (node instanceof Element) {
                final Element elem = (Element) node;

                if (elem.getNodeName().equals(strNodeName)) {
                    return elem.getLastChild().getTextContent().trim();
                }
            }
        } // end for

        return strDefaultValue;
    }
}

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