com.sun.xml.stream.buffer.XMLStreamBufferResult Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of streambuffer Show documentation
Stream based representation for XML infoset
The newest version!
/*
 * Copyright (c) 2005, 2021 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package com.sun.xml.stream.buffer;

import com.sun.xml.stream.buffer.sax.SAXBufferCreator;
import javax.xml.transform.sax.SAXResult;
import org.xml.sax.ContentHandler;
import org.xml.sax.ext.LexicalHandler;

/**
 * A JAXP Result implementation that supports the serialization to an
 * {@link MutableXMLStreamBuffer} for use by applications that expect a Result.
 *
 * 
 * Reuse of a XMLStreamBufferResult more than once will require that the
 * MutableXMLStreamBuffer is reset by called
 * {@link #getXMLStreamBuffer()}.reset(), or by calling
 * {@link #setXMLStreamBuffer(com.sun.xml.stream.buffer.MutableXMLStreamBuffer)} with a new instance of
 * {@link MutableXMLStreamBuffer}.
 *
 * 

 * The derivation of XMLStreamBufferResult from SAXResult is an implementation
 * detail.
 *
 * 
General applications shall not call the following methods:
 * 

 * setHandler
 * setLexicalHandler
 * setSystemId
 * 
 */
public class XMLStreamBufferResult extends SAXResult {
    protected MutableXMLStreamBuffer _buffer;
    protected SAXBufferCreator _bufferCreator;

    /**
     * The default XMLStreamBufferResult constructor.
     *
     * 
     * A {@link MutableXMLStreamBuffer} is instantiated and used.
     */
    public XMLStreamBufferResult() {
        setXMLStreamBuffer(new MutableXMLStreamBuffer());
    }

    /**
     * XMLStreamBufferResult constructor.
     *
     * @param buffer the {@link MutableXMLStreamBuffer} to use.
     */
    public XMLStreamBufferResult(MutableXMLStreamBuffer buffer) {
        setXMLStreamBuffer(buffer);
    }

    /**
     * Get the {@link MutableXMLStreamBuffer} that is used.
     *
     * @return the {@link MutableXMLStreamBuffer}.
     */
    public MutableXMLStreamBuffer getXMLStreamBuffer() {
        return _buffer;
    }

    /**
     * Set the {@link MutableXMLStreamBuffer} to use.
     *
     * @param buffer the {@link MutableXMLStreamBuffer}.
     */
    public void setXMLStreamBuffer(MutableXMLStreamBuffer buffer) {
        if (buffer == null) {
            throw new NullPointerException("buffer cannot be null");
        }
        _buffer = buffer;
        setSystemId(_buffer.getSystemId());

        if (_bufferCreator != null) {
            _bufferCreator.setXMLStreamBuffer(_buffer);
        }
    }

    @Override
    public ContentHandler getHandler() {
        if (_bufferCreator == null) {
            _bufferCreator = new SAXBufferCreator(_buffer);
            setHandler(_bufferCreator);
        } else if (super.getHandler() == null) {
            setHandler(_bufferCreator);
        }

        return _bufferCreator;
    }

    @Override
    public LexicalHandler getLexicalHandler() {
        return (LexicalHandler) getHandler();
    }
}