javax.xml.transform.Transformer#getOutputProperty ( )源码实例Demo

/**
 * Configure the supplied {@link HttpServletResponse}.
 * <p>The default implementation of this method sets the
 * {@link HttpServletResponse#setContentType content type} and
 * {@link HttpServletResponse#setCharacterEncoding encoding}
 * from the "media-type" and "encoding" output properties
 * specified in the {@link Transformer}.
 * @param model merged output Map (never {@code null})
 * @param response current HTTP response
 * @param transformer the target transformer
 */
protected void configureResponse(Map<String, Object> model, HttpServletResponse response, Transformer transformer) {
	String contentType = getContentType();
	String mediaType = transformer.getOutputProperty(OutputKeys.MEDIA_TYPE);
	String encoding = transformer.getOutputProperty(OutputKeys.ENCODING);
	if (StringUtils.hasText(mediaType)) {
		contentType = mediaType;
	}
	if (StringUtils.hasText(encoding)) {
		// Only apply encoding if content type is specified but does not contain charset clause already.
		if (contentType != null && !contentType.toLowerCase().contains(WebUtils.CONTENT_TYPE_CHARSET_PREFIX)) {
			contentType = contentType + WebUtils.CONTENT_TYPE_CHARSET_PREFIX + encoding;
		}
	}
	response.setContentType(contentType);
}
 

/**
 * Configure the supplied {@link HttpServletResponse}.
 * <p>The default implementation of this method sets the
 * {@link HttpServletResponse#setContentType content type} and
 * {@link HttpServletResponse#setCharacterEncoding encoding}
 * from the "media-type" and "encoding" output properties
 * specified in the {@link Transformer}.
 * @param model merged output Map (never {@code null})
 * @param response current HTTP response
 * @param transformer the target transformer
 */
protected void configureResponse(Map<String, Object> model, HttpServletResponse response, Transformer transformer) {
	String contentType = getContentType();
	String mediaType = transformer.getOutputProperty(OutputKeys.MEDIA_TYPE);
	String encoding = transformer.getOutputProperty(OutputKeys.ENCODING);
	if (StringUtils.hasText(mediaType)) {
		contentType = mediaType;
	}
	if (StringUtils.hasText(encoding)) {
		// Only apply encoding if content type is specified but does not contain charset clause already.
		if (contentType != null && !contentType.toLowerCase().contains(WebUtils.CONTENT_TYPE_CHARSET_PREFIX)) {
			contentType = contentType + WebUtils.CONTENT_TYPE_CHARSET_PREFIX + encoding;
		}
	}
	response.setContentType(contentType);
}
 

/**
 * Configure the supplied {@link HttpServletResponse}.
 * <p>The default implementation of this method sets the
 * {@link HttpServletResponse#setContentType content type} and
 * {@link HttpServletResponse#setCharacterEncoding encoding}
 * from the "media-type" and "encoding" output properties
 * specified in the {@link Transformer}.
 * @param model merged output Map (never {@code null})
 * @param response current HTTP response
 * @param transformer the target transformer
 */
protected void configureResponse(Map<String, Object> model, HttpServletResponse response, Transformer transformer) {
	String contentType = getContentType();
	String mediaType = transformer.getOutputProperty(OutputKeys.MEDIA_TYPE);
	String encoding = transformer.getOutputProperty(OutputKeys.ENCODING);
	if (StringUtils.hasText(mediaType)) {
		contentType = mediaType;
	}
	if (StringUtils.hasText(encoding)) {
		// Only apply encoding if content type is specified but does not contain charset clause already.
		if (contentType != null && !contentType.toLowerCase().contains(WebUtils.CONTENT_TYPE_CHARSET_PREFIX)) {
			contentType = contentType + WebUtils.CONTENT_TYPE_CHARSET_PREFIX + encoding;
		}
	}
	response.setContentType(contentType);
}
 

/**
 * Configure the supplied {@link HttpServletResponse}.
 * <p>The default implementation of this method sets the
 * {@link HttpServletResponse#setContentType content type} and
 * {@link HttpServletResponse#setCharacterEncoding encoding}
 * from the "media-type" and "encoding" output properties
 * specified in the {@link Transformer}.
 * @param model merged output Map (never {@code null})
 * @param response current HTTP response
 * @param transformer the target transformer
 */
protected void configureResponse(Map<String, Object> model, HttpServletResponse response, Transformer transformer) {
	String contentType = getContentType();
	String mediaType = transformer.getOutputProperty(OutputKeys.MEDIA_TYPE);
	String encoding = transformer.getOutputProperty(OutputKeys.ENCODING);
	if (StringUtils.hasText(mediaType)) {
		contentType = mediaType;
	}
	if (StringUtils.hasText(encoding)) {
		// Only apply encoding if content type is specified but does not contain charset clause already.
		if (contentType != null && !contentType.toLowerCase().contains(WebUtils.CONTENT_TYPE_CHARSET_PREFIX)) {
			contentType = contentType + WebUtils.CONTENT_TYPE_CHARSET_PREFIX + encoding;
		}
	}
	response.setContentType(contentType);
}
 

@Test
public void enableIndentingSunnyDay() throws Exception {
	Transformer transformer = new StubTransformer();
	TransformerUtils.enableIndenting(transformer);
	String indent = transformer.getOutputProperty(OutputKeys.INDENT);
	assertNotNull(indent);
	assertEquals("yes", indent);
	String indentAmount = transformer.getOutputProperty("{http://xml.apache.org/xalan}indent-amount");
	assertNotNull(indentAmount);
	assertEquals(String.valueOf(TransformerUtils.DEFAULT_INDENT_AMOUNT), indentAmount);
}
 

@Test
public void enableIndentingSunnyDayWithCustomKosherIndentAmount() throws Exception {
	final String indentAmountProperty = "10";
	Transformer transformer = new StubTransformer();
	TransformerUtils.enableIndenting(transformer, Integer.valueOf(indentAmountProperty));
	String indent = transformer.getOutputProperty(OutputKeys.INDENT);
	assertNotNull(indent);
	assertEquals("yes", indent);
	String indentAmount = transformer.getOutputProperty("{http://xml.apache.org/xalan}indent-amount");
	assertNotNull(indentAmount);
	assertEquals(indentAmountProperty, indentAmount);
}
 

@Test
public void disableIndentingSunnyDay() throws Exception {
	Transformer transformer = new StubTransformer();
	TransformerUtils.disableIndenting(transformer);
	String indent = transformer.getOutputProperty(OutputKeys.INDENT);
	assertNotNull(indent);
	assertEquals("no", indent);
}
 

@Test
public void enableIndentingSunnyDay() throws Exception {
	Transformer transformer = new StubTransformer();
	TransformerUtils.enableIndenting(transformer);
	String indent = transformer.getOutputProperty(OutputKeys.INDENT);
	assertNotNull(indent);
	assertEquals("yes", indent);
	String indentAmount = transformer.getOutputProperty("{http://xml.apache.org/xslt}indent-amount");
	assertNotNull(indentAmount);
	assertEquals(String.valueOf(TransformerUtils.DEFAULT_INDENT_AMOUNT), indentAmount);
}
 

@Test
public void enableIndentingSunnyDayWithCustomKosherIndentAmount() throws Exception {
	final String indentAmountProperty = "10";
	Transformer transformer = new StubTransformer();
	TransformerUtils.enableIndenting(transformer, Integer.valueOf(indentAmountProperty));
	String indent = transformer.getOutputProperty(OutputKeys.INDENT);
	assertNotNull(indent);
	assertEquals("yes", indent);
	String indentAmount = transformer.getOutputProperty("{http://xml.apache.org/xslt}indent-amount");
	assertNotNull(indentAmount);
	assertEquals(indentAmountProperty, indentAmount);
}
 

@Test
public void disableIndentingSunnyDay() throws Exception {
	Transformer transformer = new StubTransformer();
	TransformerUtils.disableIndenting(transformer);
	String indent = transformer.getOutputProperty(OutputKeys.INDENT);
	assertNotNull(indent);
	assertEquals("no", indent);
}
 

@Test
public void enableIndentingSunnyDay() throws Exception {
	Transformer transformer = new StubTransformer();
	TransformerUtils.enableIndenting(transformer);
	String indent = transformer.getOutputProperty(OutputKeys.INDENT);
	assertNotNull(indent);
	assertEquals("yes", indent);
	String indentAmount = transformer.getOutputProperty("{http://xml.apache.org/xslt}indent-amount");
	assertNotNull(indentAmount);
	assertEquals(String.valueOf(TransformerUtils.DEFAULT_INDENT_AMOUNT), indentAmount);
}
 

@Test
public void enableIndentingSunnyDayWithCustomKosherIndentAmount() throws Exception {
	final String indentAmountProperty = "10";
	Transformer transformer = new StubTransformer();
	TransformerUtils.enableIndenting(transformer, Integer.valueOf(indentAmountProperty));
	String indent = transformer.getOutputProperty(OutputKeys.INDENT);
	assertNotNull(indent);
	assertEquals("yes", indent);
	String indentAmount = transformer.getOutputProperty("{http://xml.apache.org/xslt}indent-amount");
	assertNotNull(indentAmount);
	assertEquals(indentAmountProperty, indentAmount);
}
 

@Test
public void disableIndentingSunnyDay() throws Exception {
	Transformer transformer = new StubTransformer();
	TransformerUtils.disableIndenting(transformer);
	String indent = transformer.getOutputProperty(OutputKeys.INDENT);
	assertNotNull(indent);
	assertEquals("no", indent);
}
 

@Override
public String getContentType(SolrQueryRequest request, SolrQueryResponse response) {
  Transformer t = null;
  try {
    t = getTransformer(request);
  } catch(Exception e) {
    // TODO should our parent interface throw (IO)Exception?
    throw new RuntimeException("getTransformer fails in getContentType",e);
  }
  
  String mediaType = t.getOutputProperty("media-type");
  if (mediaType == null || mediaType.length()==0) {
    // This did not happen in my tests, mediaTypeFromXslt is set to "text/xml"
    // if the XSLT transform does not contain an xsl:output element. Not sure
    // if this is standard behavior or if it's just my JVM/libraries
    mediaType = DEFAULT_CONTENT_TYPE;
  }
  
  if (!mediaType.contains("charset")) {
    String encoding = t.getOutputProperty("encoding");
    if (encoding == null || encoding.length()==0) {
      encoding = "UTF-8";
    }
    mediaType = mediaType + "; charset=" + encoding;
  }
  
  return mediaType;
}