Java XMLStreamWriter copy(Reader reader, XMLStreamWriter xmlStreamWriter)

Description

copy

License

EUPL

Declaration

public static void copy(Reader reader, XMLStreamWriter xmlStreamWriter)
            throws XMLStreamException 

Method Source Code

//package com.java2s;
/*//from  www  . j a  va  2  s .  c o m
 * Copyright 2016-2017 Direktoratet for forvaltning og IKT
 *
 * Licensed under the EUPL, Version 1.1 or ? as soon they
 * will be approved by the European Commission - subsequent
 * versions of the EUPL (the "Licence");
 *
 * You may not use this work except in compliance with the Licence.
 *
 * You may obtain a copy of the Licence at:
 *
 * https://joinup.ec.europa.eu/community/eupl/og_page/eupl
 *
 * Unless required by applicable law or agreed to in
 * writing, software distributed under the Licence is
 * distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied.
 * See the Licence for the specific language governing
 * permissions and limitations under the Licence.
 */

import javax.xml.stream.*;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;

public class Main {
    public static void copy(Reader reader, XMLStreamWriter xmlStreamWriter)
            throws XMLStreamException {
        XMLStreamReader xmlStreamReader = XMLInputFactory.newFactory()
                .createXMLStreamReader(reader);
        copy(xmlStreamReader, xmlStreamWriter);
        xmlStreamReader.close();
    }

    public static void copy(XMLStreamReader xmlStreamReader, Writer writer)
            throws XMLStreamException {
        XMLStreamWriter xmlStreamWriter = XMLOutputFactory.newFactory()
                .createXMLStreamWriter(writer);
        copy(xmlStreamReader, xmlStreamWriter);
        xmlStreamWriter.close();
    }

    public static void copy(InputStream inputStream,
            XMLStreamWriter xmlStreamWriter) throws XMLStreamException {
        XMLStreamReader xmlStreamReader = XMLInputFactory.newFactory()
                .createXMLStreamReader(inputStream, "UTF-8");
        copy(xmlStreamReader, xmlStreamWriter);
        xmlStreamReader.close();
    }

    public static void copy(XMLStreamReader xmlStreamReader,
            OutputStream outputStream) throws XMLStreamException {
        XMLStreamWriter xmlStreamWriter = XMLOutputFactory.newFactory()
                .createXMLStreamWriter(outputStream, "UTF-8");
        copy(xmlStreamReader, xmlStreamWriter);
        xmlStreamWriter.close();
    }

    public static void copy(XMLStreamReader reader, XMLStreamWriter writer)
            throws XMLStreamException {
        boolean hasNext;

        do {
            switch (reader.getEventType()) {
            case XMLStreamConstants.START_DOCUMENT:
                writer.writeStartDocument(reader.getEncoding(),
                        reader.getVersion());
                break;
            case XMLStreamConstants.END_DOCUMENT:
                writer.writeEndDocument();
                break;

            case XMLStreamConstants.START_ELEMENT:
                writer.writeStartElement(reader.getPrefix(),
                        reader.getLocalName(), reader.getNamespaceURI());

                for (int i = 0; i < reader.getNamespaceCount(); i++)
                    writer.writeNamespace(reader.getNamespacePrefix(i),
                            reader.getNamespaceURI(i));
                for (int i = 0; i < reader.getAttributeCount(); i++)
                    writer.writeAttribute(reader.getAttributeLocalName(i),
                            reader.getAttributeValue(i));
                break;
            case XMLStreamConstants.END_ELEMENT:
                writer.writeEndElement();
                break;

            case XMLStreamConstants.CHARACTERS:
                writer.writeCharacters(reader.getText());
                break;
            case XMLStreamConstants.CDATA:
                writer.writeCData(reader.getText());
                break;
            }

            hasNext = reader.hasNext();
            if (hasNext)
                reader.next();
        } while (hasNext);
    }
}

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