Java StreamSource.getSystemId方法代碼示例

import javax.xml.transform.stream.StreamSource; //導入方法依賴的package包/類
XMLInputSource jaxpSourcetoXMLInputSource(Source source){
     if(source instanceof StreamSource){
         StreamSource stSource = (StreamSource)source;
         String systemId = stSource.getSystemId();
         String publicId = stSource.getPublicId();
         InputStream istream = stSource.getInputStream();
         Reader reader = stSource.getReader();

         if(istream != null){
             return new XMLInputSource(publicId, systemId, null, istream, null);
         }
         else if(reader != null){
             return new XMLInputSource(publicId, systemId,null, reader, null);
         }else{
             return new XMLInputSource(publicId, systemId, null);
         }
     }

     throw new UnsupportedOperationException("Cannot create " +
            "XMLStreamReader or XMLEventReader from a " +
            source.getClass().getName());
}
 

import javax.xml.transform.stream.StreamSource; //導入方法依賴的package包/類
/**
 * Attempt to obtain a SAX InputSource object from a Source
 * object.
 *
 * @param source Must be a non-null Source reference.
 *
 * @return An InputSource, or null if Source can not be converted.
 */
public static InputSource sourceToInputSource(Source source) {

    if (source instanceof SAXSource) {
        return ((SAXSource) source).getInputSource();
    } else if (source instanceof StreamSource) {
        StreamSource ss      = (StreamSource) source;
        InputSource  isource = new InputSource(ss.getSystemId());

        isource.setByteStream(ss.getInputStream());
        isource.setCharacterStream(ss.getReader());
        isource.setPublicId(ss.getPublicId());

        return isource;
    } else {
        return null;
    }
}
 

import javax.xml.transform.stream.StreamSource; //導入方法依賴的package包/類
XMLInputSource jaxpSourcetoXMLInputSource(Source source){
     if(source instanceof StreamSource){
         StreamSource stSource = (StreamSource)source;
         String systemId = stSource.getSystemId();
         String publicId = stSource.getPublicId();
         InputStream istream = stSource.getInputStream();
         Reader reader = stSource.getReader();

         if(istream != null){
             return new XMLInputSource(publicId, systemId, null, istream, null);
         }
         else if(reader != null){
             return new XMLInputSource(publicId, systemId,null, reader, null);
         }else{
             return new XMLInputSource(publicId, systemId, null, false);
         }
     }

     throw new UnsupportedOperationException("Cannot create " +
            "XMLStreamReader or XMLEventReader from a " +
            source.getClass().getName());
}
 

import javax.xml.transform.stream.StreamSource; //導入方法依賴的package包/類
/**
 * Creates a proper {@link XMLInputSource} from a {@link StreamSource}.
 *
 * @return always return non-null valid object.
 */
public static final XMLInputSource toXMLInputSource( StreamSource in ) {
    if( in.getReader()!=null )
        return new XMLInputSource(
        in.getPublicId(), in.getSystemId(), in.getSystemId(),
        in.getReader(), null );
    if( in.getInputStream()!=null )
        return new XMLInputSource(
        in.getPublicId(), in.getSystemId(), in.getSystemId(),
        in.getInputStream(), null );

    return new XMLInputSource(
    in.getPublicId(), in.getSystemId(), in.getSystemId() );
}
 

import javax.xml.transform.stream.StreamSource; //導入方法依賴的package包/類
/**
 * Creates a proper {@link XMLInputSource} from a {@link StreamSource}.
 *
 * @return always return non-null valid object.
 */
public static final XMLInputSource toXMLInputSource( StreamSource in ) {
    if( in.getReader()!=null )
        return new XMLInputSource(
        in.getPublicId(), in.getSystemId(), in.getSystemId(),
        in.getReader(), null );
    if( in.getInputStream()!=null )
        return new XMLInputSource(
        in.getPublicId(), in.getSystemId(), in.getSystemId(),
        in.getInputStream(), null );

    return new XMLInputSource(
    in.getPublicId(), in.getSystemId(), in.getSystemId(), false );
}
 

import javax.xml.transform.stream.StreamSource; //導入方法依賴的package包/類
private InputStream getInputStreamFromSource(StreamSource s)
    throws TransformerException {

    InputStream stream = s.getInputStream();
    if (stream != null)
        return stream;

    if (s.getReader() != null)
        return null;

    String systemId = s.getSystemId();
    if (systemId != null) {
        try {
            String fileURL = systemId;

            if (systemId.startsWith("file:///"))
            {
                /*
                 systemId is:
                 file:///<drive>:/some/path/file.xml
                 or
                 file:///some/path/file.xml
                */

                String absolutePath = systemId.substring(7);
                /*
                 /<drive>:/some/path/file.xml
                 or
                 /some/path/file.xml
                */

                boolean hasDriveDesignator = absolutePath.indexOf(":") > 0;
                if (hasDriveDesignator) {
                  String driveDesignatedPath = absolutePath.substring(1);
                  /*
                  <drive>:/some/path/file.xml */
                  fileURL = driveDesignatedPath;
                }
                else {
                  /*
                  /some/path/file.xml */
                  fileURL = absolutePath;
                }
            }
            //return new FileInputStream(fileURL);
            try {
                return new FileInputStream(new File(new URI(fileURL)));
            } catch (URISyntaxException ex) {
                throw new TransformerException(ex);
            }
        } catch (IOException e) {
            throw new TransformerException(e.toString());
        }
    }

    throw new TransformerException("Unexpected StreamSource object");
}