Java XMLInputSource.setByteStream方法代码示例

import org.apache.xerces.xni.parser.XMLInputSource; //导入方法依赖的package包/类
/**
 * Creates an XMLInputSource from a SAX InputSource.
 */
private XMLInputSource createXMLInputSource(InputSource source, String baseURI) {
 
    String publicId = source.getPublicId();
    String systemId = source.getSystemId();
    String baseSystemId = baseURI;
    InputStream byteStream = source.getByteStream();
    Reader charStream = source.getCharacterStream();
    String encoding = source.getEncoding();
    XMLInputSource xmlInputSource =
        new XMLInputSource(publicId, systemId, baseSystemId);
    xmlInputSource.setByteStream(byteStream);
    xmlInputSource.setCharacterStream(charStream);
    xmlInputSource.setEncoding(encoding);
    return xmlInputSource;
    
}
 

import org.apache.xerces.xni.parser.XMLInputSource; //导入方法依赖的package包/类
/**
 * This method tries to open the necessary stream for the given
 * XMLInputSource. If the input source already has a character
 * stream (java.io.Reader) or a byte stream (java.io.InputStream)
 * set, this method returns immediately. However, if no character
 * or byte stream is already open, this method attempts to open
 * an input stream using the source's system identifier.
 *
 * @param source The input source to open.
 */
protected void openInputSourceStream(XMLInputSource source)
    throws IOException {
    if (source.getCharacterStream() != null) {
        return;
    }
    InputStream stream = source.getByteStream();
    if (stream == null) {
        String systemId = source.getSystemId();
        try {
            URL url = new URL(systemId);
            stream = url.openStream();
        }
        catch (MalformedURLException e) {
            stream = new FileInputStream(systemId);
        }
        source.setByteStream(stream);
    }
}
 

import org.apache.xerces.xni.parser.XMLInputSource; //导入方法依赖的package包/类
private static XMLInputSource toXMLInputSource(InputSource in) {
  XMLInputSource xin = new XMLInputSource(in.getPublicId(), in.getSystemId(), null);
  xin.setByteStream(in.getByteStream());
  xin.setCharacterStream(in.getCharacterStream());
  xin.setEncoding(in.getEncoding());
  return xin;
}
 

import org.apache.xerces.xni.parser.XMLInputSource; //导入方法依赖的package包/类
@Override
public XMLInputSource resolveEntity(XMLResourceIdentifier id) throws XNIException, IOException {
    String systemId = id.getLiteralSystemId();
    debug("Resolving " + systemId);

    XMLInputSource source = new XMLInputSource(id);
    source.setByteStream(resolver.getStream(systemId));
    return source;
}
 

import org.apache.xerces.xni.parser.XMLInputSource; //导入方法依赖的package包/类
/** Parses a document fragment. */
public void parse(InputSource source, DocumentFragment fragment) 
    throws SAXException, IOException {

    fCurrentNode = fDocumentFragment = fragment;
    fDocument = fDocumentFragment.getOwnerDocument();

    try {
        String pubid = source.getPublicId();
        String sysid = source.getSystemId();
        String encoding = source.getEncoding();
        InputStream stream = source.getByteStream();
        Reader reader = source.getCharacterStream();
        
        XMLInputSource inputSource = 
            new XMLInputSource(pubid, sysid, sysid);
        inputSource.setEncoding(encoding);
        inputSource.setByteStream(stream);
        inputSource.setCharacterStream(reader);
        
        fParserConfiguration.parse(inputSource);
    }
    catch (XMLParseException e) {
        Exception ex = e.getException();
        if (ex != null) {
            throw new SAXParseException(e.getMessage(), null, ex);
        }
        throw new SAXParseException(e.getMessage(), null);
    }

}
 

import org.apache.xerces.xni.parser.XMLInputSource; //导入方法依赖的package包/类
/**
 * Resolves an external parsed entity. If the entity cannot be
 * resolved, this method should return null.
 *
 * @param resourceIdentifier	contains the physical co-ordinates of the resource to be resolved
 *
 * @throws XNIException Thrown on general error.
 * @throws IOException  Thrown if resolved entity stream cannot be
 *                      opened or some other i/o error occurs.
 */
public XMLInputSource resolveEntity(XMLResourceIdentifier resourceIdentifier)
    throws XNIException, IOException {

    // When both pubId and sysId are null, the user's entity resolver
    // can do nothing about it. We'd better not bother calling it.
    // This happens when the resourceIdentifier is a GrammarDescription,
    // which describes a schema grammar of some namespace, but without
    // any schema location hint. -Sg
    String pubId = resourceIdentifier.getPublicId();
    String sysId = resourceIdentifier.getExpandedSystemId();
    if (pubId == null && sysId == null)
        return null;

    // resolve entity using SAX entity resolver
    if (fEntityResolver != null && resourceIdentifier != null) {
        try {
            InputSource inputSource = fEntityResolver.resolveEntity(pubId, sysId);
            if (inputSource != null) {
                String publicId = inputSource.getPublicId();
                String systemId = inputSource.getSystemId();
                String baseSystemId = resourceIdentifier.getBaseSystemId();
                InputStream byteStream = inputSource.getByteStream();
                Reader charStream = inputSource.getCharacterStream();
                String encoding = inputSource.getEncoding();
                XMLInputSource xmlInputSource =
                    new XMLInputSource(publicId, systemId, baseSystemId);
                xmlInputSource.setByteStream(byteStream);
                xmlInputSource.setCharacterStream(charStream);
                xmlInputSource.setEncoding(encoding);
                return xmlInputSource;
            }
        }

        // error resolving entity
        catch (SAXException e) {
            Exception ex = e.getException();
            if (ex == null) {
                ex = e;
            }
            throw new XNIException(ex);
        }
    }

    // unable to resolve entity
    return null;

}
 

import org.apache.xerces.xni.parser.XMLInputSource; //导入方法依赖的package包/类
/**
 * Resolves an external parsed entity. If the entity cannot be
 * resolved, this method should return null.
 *
 * @param resourceIdentifier	description of the resource to be revsoved
 * @throws XNIException Thrown on general error.
 * @throws IOException  Thrown if resolved entity stream cannot be
 *                      opened or some other i/o error occurs.
 */
public XMLInputSource resolveEntity(XMLResourceIdentifier resourceIdentifier)
    throws XNIException, IOException {
    // resolve entity using DOM entity resolver
    if (fEntityResolver != null) {
        // For entity resolution the type of the resource would be  XML TYPE
        // DOM L3 LS spec mention only the XML 1.0 recommendation right now
        LSInput inputSource =
            resourceIdentifier == null
                ? fEntityResolver.resolveResource(
                    null,
                    null,
                    null,
                    null,
                    null)
                : fEntityResolver.resolveResource(
                    getType(resourceIdentifier),
                    resourceIdentifier.getNamespace(),
                    resourceIdentifier.getPublicId(),
                    resourceIdentifier.getLiteralSystemId(),
                    resourceIdentifier.getBaseSystemId());
        if (inputSource != null) {
            String publicId = inputSource.getPublicId();
            String systemId = inputSource.getSystemId();
            String baseSystemId = inputSource.getBaseURI();
            InputStream byteStream = inputSource.getByteStream();
            Reader charStream = inputSource.getCharacterStream();
            String encoding = inputSource.getEncoding();
            String data = inputSource.getStringData();

            /**
             * An LSParser looks at inputs specified in LSInput in
             * the following order: characterStream, byteStream,
             * stringData, systemId, publicId.
             */          
            XMLInputSource xmlInputSource =
                new XMLInputSource(publicId, systemId, baseSystemId);
            
            if (charStream != null) {
                xmlInputSource.setCharacterStream(charStream);
            }
            else if (byteStream != null) {
                xmlInputSource.setByteStream((InputStream) byteStream);
            }
            else if (data != null && data.length() != 0) {
                xmlInputSource.setCharacterStream(new StringReader(data));
            }
            xmlInputSource.setEncoding(encoding);
            return xmlInputSource;
        }
    }

    // unable to resolve entity
    return null;

}