import com.sun.xml.internal.stream.buffer.stax.StreamReaderBufferCreator; //导入依赖的package包/类
private static XMLStreamBuffer cacheHeaders(XMLStreamReader reader,
        Map<String, String> namespaces, HeaderList headers,
        StreamHeaderDecoder headerDecoder) throws XMLStreamException {
    MutableXMLStreamBuffer buffer = createXMLStreamBuffer();
    StreamReaderBufferCreator creator = new StreamReaderBufferCreator();
    creator.setXMLStreamBuffer(buffer);

    // Reader is positioned at the first header block
    while(reader.getEventType() == javax.xml.stream.XMLStreamConstants.START_ELEMENT) {
        Map<String,String> headerBlockNamespaces = namespaces;

        // Collect namespaces on SOAP header block
        if (reader.getNamespaceCount() > 0) {
            headerBlockNamespaces = new HashMap<String,String>(namespaces);
            for (int i = 0; i < reader.getNamespaceCount(); i++) {
                headerBlockNamespaces.put(reader.getNamespacePrefix(i), reader.getNamespaceURI(i));
            }
        }

        // Mark
        XMLStreamBuffer mark = new XMLStreamBufferMark(headerBlockNamespaces, creator);
        // Create Header
        headers.add(headerDecoder.decodeHeader(reader, mark));


        // Cache the header block
        // After caching Reader will be positioned at next header block or
        // the end of the </soap:header>
        creator.createElementFragment(reader, false);
        if (reader.getEventType() != XMLStreamConstants.START_ELEMENT &&
                reader.getEventType() != XMLStreamConstants.END_ELEMENT) {
            XMLStreamReaderUtil.nextElementContent(reader);
        }
    }

    return buffer;
}
 

import com.sun.xml.internal.stream.buffer.stax.StreamReaderBufferCreator; //导入依赖的package包/类
private XMLStreamBuffer cacheHeaders(XMLStreamReader reader,
        Map<String, String> namespaces, HeaderList headers) throws XMLStreamException {
    MutableXMLStreamBuffer buffer = createXMLStreamBuffer();
    StreamReaderBufferCreator creator = new StreamReaderBufferCreator();
    creator.setXMLStreamBuffer(buffer);

    // Reader is positioned at the first header block
    while(reader.getEventType() == javax.xml.stream.XMLStreamConstants.START_ELEMENT) {
        Map<String,String> headerBlockNamespaces = namespaces;

        // Collect namespaces on SOAP header block
        if (reader.getNamespaceCount() > 0) {
            headerBlockNamespaces = new HashMap<String,String>(namespaces);
            for (int i = 0; i < reader.getNamespaceCount(); i++) {
                headerBlockNamespaces.put(reader.getNamespacePrefix(i), reader.getNamespaceURI(i));
            }
        }

        // Mark
        XMLStreamBuffer mark = new XMLStreamBufferMark(headerBlockNamespaces, creator);
        // Create Header
        headers.add(createHeader(reader, mark));


        // Cache the header block
        // After caching Reader will be positioned at next header block or
        // the end of the </soap:header>
        creator.createElementFragment(reader, false);
        if (reader.getEventType() != XMLStreamConstants.START_ELEMENT &&
                reader.getEventType() != XMLStreamConstants.END_ELEMENT) {
            XMLStreamReaderUtil.nextElementContent(reader);
        }
    }

    return buffer;
}
 

import com.sun.xml.internal.stream.buffer.stax.StreamReaderBufferCreator; //导入依赖的package包/类
/**
 * Create contents of a buffer from a XMLStreamReader.
 *
 * <p>
 * The MutableXMLStreamBuffer is reset (see {@link #reset}) before creation.
 *
 * <p>
 * The MutableXMLStreamBuffer is created by consuming the events on the XMLStreamReader using
 * an instance of {@link StreamReaderBufferCreator}.
 *
 * @param reader
 * A XMLStreamReader to read from to create.
 */
public void createFromXMLStreamReader(XMLStreamReader reader) throws XMLStreamException {
    reset();
    StreamReaderBufferCreator c = new StreamReaderBufferCreator(this);
    c.create(reader);
}