Java XML Attribute Get getDoubleAttribute(String name, Element el)

Description

Gets the value of the DOM element's attribute with the given name as a Double, or null if the value is not a double.

License

Open Source License

Declaration

public static Double getDoubleAttribute(String name, Element el) 

Method Source Code

//package com.java2s;

import org.w3c.dom.*;

public class Main {
    /**/* w w w .ja  va2  s  . c  om*/
     * Gets the value of the DOM element's attribute with the given name
     * as a Double, or null if the value is not a double.
     */
    public static Double getDoubleAttribute(String name, Element el) {
        return stringToDouble(getAttribute(name, el));
    }

    private static Double stringToDouble(String value) {
        if (value == null)
            return null;
        try {
            return new Double(value);
        } catch (NumberFormatException exc) {
            return null;
        }
    }

    /**
     * Gets the value of the given DOM element's attribute
     * with the specified name.
     */
    public static String getAttribute(String name, Element el) {
        if (name == null || el == null)
            return null;
        if (!el.hasAttribute(name))
            return null;
        return el.getAttribute(name);
    }
}

Related

1. getDirectAttribute(Node node, String name)
2. getDivHeadAttr(Element annotU, String attrName)
3. getDoubleArrayTagAttribute(XMLStreamReader xmler, String attribute, double[] defaultValue)
4. getDoubleAttribute(Element element, String name)
5. getDoubleAttribute(Node n, String s)
6. getDoubleAttributeValue(Element element, String attribute)
7. getDoubleAttributeValue(final Element element, final String attributeName)