Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

import org.w3c.dom.NodeList;

public class Main {
    /**
     * Extracts the element named <var>name</var> with the namespace
     * <var>elementNS</var> that is a descentant of the Document
     * <var>message</var>. This method returns null if the named elemens is not
     * a child of <var>message</var> or if <var>message</var> contains more than
     * one element named <var>name</var>
     * 
     * @param message
     *            Source Document that contains the element named
     *            <var>name</var>
     * @param elementNS
     *            Namespace of the element named <var>name</var>
     * @param name
     *            Name of the element to be extracted
     * @return Element named <var>name</var>, <br>
     *         or null if <var>message</var> contains zero or more than one
     *         element named <var>name</var>
     */
    public static Element extractElement(Document message, String elementNS, String name) {
        return extractElement(message, elementNS, name, true);
    }

    /**
     * Extracts the element named <var>name</var> with the namespace
     * <var>elementNS</var> that is a descentant of the Document
     * <var>message</var>. This method returns null if the named elemens is not
     * a child of <var>message</var> or if <var>message</var> contains more than
     * one element named <var>name</var>
     * 
     * @param message
     *            Source Document that contains the element named
     *            <var>name</var>
     * @param elementNS
     *            Namespace of the element named <var>name</var>
     * @param name
     *            Name of the element to be extracted
     * @return Element named <var>name</var>, <br>
     *         or null if <var>message</var> contains zero or more than one
     *         element named <var>name</var>
     */
    public static Element extractElement(Document message, String elementNS, String name, boolean strict) {
        NodeList list = message.getElementsByTagNameNS(elementNS, name);
        if (list == null || list.getLength() == 0 || (strict && list.getLength() > 1))
            return null;
        Element element = (Element) list.item(0);
        return element;
    }

    /**
     * Extracts the element named <var>name</var> with the namespace
     * <var>elementNS</var> that is a descentant of the element
     * <var>message</var>. This method returns null if the named elemens is not
     * a child of <var>message</var> or if <var>message</var> contains more than
     * one element named <var>name</var>
     * 
     * @param message
     *            Source Document that contains the element named
     *            <var>name</var>
     * @param elementNS
     *            Namespace of the element named <var>name</var>
     * @param name
     *            Name of the element to be extracted
     * @return Element named <var>name</var>, <br>
     *         or null if <var>message</var> contains zero or more than one
     *         element named <var>name</var>
     */
    public static Element extractElement(Element message, String elementNS, String name) {
        return extractElement(message, elementNS, name, true);
    }

    /**
     * Extracts the element named <var>name</var> with the namespace
     * <var>elementNS</var> that is a descentant of the element
     * <var>message</var>. This method returns null if the named elemens is not
     * a child of <var>message</var> or if <var>message</var> contains more than
     * one element named <var>name</var>
     * 
     * @param message
     *            Source Document that contains the element named
     *            <var>name</var>
     * @param elementNS
     *            Namespace of the element named <var>name</var>
     * @param name
     *            Name of the element to be extracted
     * @return Element named <var>name</var>, <br>
     *         or null if <var>message</var> contains zero or more than one
     *         element named <var>name</var>
     */
    public static Element extractElement(Element message, String elementNS, String name, boolean strict) {
        NodeList list = message.getElementsByTagNameNS(elementNS, name);
        if (list == null || list.getLength() == 0 || (strict && list.getLength() > 1))
            return null;
        Element element = (Element) list.item(0);
        return element;
    }
}