Java XML Element Root getRootElement(final XMLEventReader bufferedXmlEventReader)

Description

get Root Element

License

Apache License

Declaration

public static StartElement getRootElement(final XMLEventReader bufferedXmlEventReader) 

Method Source Code

//package com.java2s;
/**/*www .j av  a 2 s  .c om*/
 * Licensed to Apereo under one or more contributor license
 * agreements. See the NOTICE file distributed with this work
 * for additional information regarding copyright ownership.
 * Apereo licenses this file to you under the Apache License,
 * Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License.  You may obtain a
 * copy of the License at the following location:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import javax.xml.stream.XMLEventReader;

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

public class Main {
    public static StartElement getRootElement(final XMLEventReader bufferedXmlEventReader) {
        XMLEvent rootElement;
        try {
            rootElement = bufferedXmlEventReader.nextEvent();
            while (rootElement.getEventType() != XMLEvent.START_ELEMENT && bufferedXmlEventReader.hasNext()) {
                rootElement = bufferedXmlEventReader.nextEvent();
            }
        } catch (XMLStreamException e) {
            throw new RuntimeException("Failed to read root element from XML", e);
        }

        if (XMLEvent.START_ELEMENT != rootElement.getEventType()) {
            throw new IllegalArgumentException("Bad XML document for import, no root element could be found");
        }
        return rootElement.asStartElement();
    }
}

Related

1. getRootElement(Document document)
2. getRootElement(Document parent)
3. getRootElement(final Element descendant)
4. getRootElement(final File definition)
5. getRootElement(final String respuestaPost)
6. getRootElement(String elementName, String namespace, String prefix)
7. getRootElement(String location)
8. getRootElementFromString(String payload)
9. getRootElementName(Class clazz)