Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.ByteArrayInputStream;

import javax.xml.stream.XMLEventReader;

import javax.xml.stream.XMLInputFactory;

import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.XMLEvent;

public class Main {
    /** StAX Factory for creating reader to read XML */
    private static XMLInputFactory inputFactory;

    /**
     * Returns the name of the root element of an XML message.
     * 
     * @param xml     XML message
     * @return the name of the root element
     * @exception Exception if an error occurs
     */
    public static String getRootElementName(byte[] xml) throws Exception {

        ByteArrayInputStream is = new ByteArrayInputStream(xml);
        XMLEventReader reader = inputFactory.createXMLEventReader(is);

        while (reader.hasNext()) {
            XMLEvent event = (XMLEvent) reader.next();

            if (event.isStartElement()) {
                StartElement startElement = event.asStartElement();
                return startElement.getName().getLocalPart();
            }
        }

        reader.close();
        return "";
    }
}