Java Code Examples for javax.servlet.jsp.tagext.BodyContent#writeOut()

@Override
public int doEndTag() throws JspException {
	// Reset optional attribute value
	declaringPlugin = null;
	extension = null;

	// Emit body content
	try {
		BodyContent currentBodyContent = getBodyContent();

		if (currentBodyContent != null) {
			if (!navigationDataList.isEmpty()) {
				currentBodyContent.writeOut(getPreviousOut());
			}
			currentBodyContent.clearBody();
		}
	} catch (IOException e) {
		logger.error("Error in ShowNavigationTag.doEndTag: " + e.getMessage(), e);
	}
	return EVAL_PAGE;
}
 

/**
 * Fill in this method to process the body content of the tag.
 * You only need to do this if the tag's BodyContent property
 * is set to "JSP" or "tagdependent."
 * If the tag's bodyContent is set to "empty," then this method
 * will not be called.
 */
private void writeTagBodyContent(JspWriter out, BodyContent bodyContent) throws IOException {
    //
    // TODO: insert code to write html before writing the body content.
    // e.g.:
    //
    out.println("<p>");
    out.println("Sum of " + x + " and " + y + " is " + (x+y));
    out.println("<br/>");
    
    //
    // write the body content (after processing by the JSP engine) on the output Writer
    //
    bodyContent.writeOut(out);
    
    out.println("<br/>");
    out.println("END of sum");
    out.println("</p>");
    
    
    // clear the body content for the next time through.
    bodyContent.clearBody();
}
 

@Override
public int doEndTag() throws JspException {
	
	BodyContent bodyContent = getBodyContent();
	String content = bodyContent.getString();
	
	XmlCompressor compressor = new XmlCompressor();
	compressor.setEnabled(enabled);
	compressor.setRemoveComments(removeComments);
	compressor.setRemoveIntertagSpaces(removeIntertagSpaces);
	
	try {
		bodyContent.clear();
		bodyContent.append(compressor.compress(content));
		bodyContent.writeOut(pageContext.getOut());
	} catch (Exception e) {
		throw new JspException("Failed to compress xml",e);
	}
	
	return super.doEndTag();
}
 

/**
 * The user customised the output of the error messages - flush the
 * buffered content into the main {@link javax.servlet.jsp.JspWriter}.
 */
protected void flushBufferedBodyContent(BodyContent bodyContent) throws JspException {
	try {
		bodyContent.writeOut(bodyContent.getEnclosingWriter());
	}
	catch (IOException ex) {
		throw new JspException("Unable to write buffered body content.", ex);
	}
}
 

/**
 * The user customised the output of the error messages - flush the
 * buffered content into the main {@link javax.servlet.jsp.JspWriter}.
 */
protected void flushBufferedBodyContent(BodyContent bodyContent) throws JspException {
	try {
		bodyContent.writeOut(bodyContent.getEnclosingWriter());
	}
	catch (IOException ex) {
		throw new JspException("Unable to write buffered body content.", ex);
	}
}
 

/**
 * The user customised the output of the error messages - flush the
 * buffered content into the main {@link javax.servlet.jsp.JspWriter}.
 */
protected void flushBufferedBodyContent(BodyContent bodyContent) throws JspException {
	try {
		bodyContent.writeOut(bodyContent.getEnclosingWriter());
	}
	catch (IOException ex) {
		throw new JspException("Unable to write buffered body content.", ex);
	}
}
 

/**
 * The user customised the output of the error messages - flush the
 * buffered content into the main {@link javax.servlet.jsp.JspWriter}.
 */
protected void flushBufferedBodyContent(BodyContent bodyContent) throws JspException {
	try {
		bodyContent.writeOut(bodyContent.getEnclosingWriter());
	}
	catch (IOException e) {
		throw new JspException("Unable to write buffered body content.", e);
	}
}
 

@Override
public int doEndTag() throws JspException {
	
	BodyContent bodyContent = getBodyContent();
	String content = bodyContent.getString();

	try {
		if(enabled) {
			//call YUICompressor
			YuiCssCompressor compressor = new YuiCssCompressor();
			compressor.setLineBreak(yuiCssLineBreak);
			String result = compressor.compress(content);

			bodyContent.clear();
			bodyContent.append(result);
			bodyContent.writeOut(pageContext.getOut());
		} else {
			bodyContent.clear();
			bodyContent.append(content);
			bodyContent.writeOut(pageContext.getOut());
		}
	} catch (Exception e) {
		throw new JspException("Failed to compress css",e);
	}
	
	return super.doEndTag();
}
 

@Override
public int doEndTag() throws JspException {
  BodyContent bc = getBodyContent();
  if (bc != null) {
    try {
      NormalizeWhitespaceWriter nww = new NormalizeWhitespaceWriter(getBodyContent().getEnclosingWriter());
      bc.writeOut(nww);
      // make sure orphaned whitespace is flushed
      nww.done();
    } catch (IOException e) {
      throw new JspException(e);
    }
  }
  return EVAL_PAGE;
}
 

@Override
public int doEndTag() throws JspException {
	
	BodyContent bodyContent = getBodyContent();
	String content = bodyContent.getString();
	
	HtmlCompressor htmlCompressor = new HtmlCompressor();
	htmlCompressor.setEnabled(enabled);
	htmlCompressor.setRemoveComments(removeComments);
	htmlCompressor.setRemoveMultiSpaces(removeMultiSpaces);
	htmlCompressor.setRemoveIntertagSpaces(removeIntertagSpaces);
	htmlCompressor.setRemoveQuotes(removeQuotes);
	htmlCompressor.setPreserveLineBreaks(preserveLineBreaks);
	htmlCompressor.setCompressJavaScript(compressJavaScript);
	htmlCompressor.setCompressCss(compressCss);
	htmlCompressor.setYuiJsNoMunge(yuiJsNoMunge);
	htmlCompressor.setYuiJsPreserveAllSemiColons(yuiJsPreserveAllSemiColons);
	htmlCompressor.setYuiJsDisableOptimizations(yuiJsDisableOptimizations);
	htmlCompressor.setYuiJsLineBreak(yuiJsLineBreak);
	htmlCompressor.setYuiCssLineBreak(yuiCssLineBreak);

	htmlCompressor.setSimpleDoctype(simpleDoctype);
	htmlCompressor.setRemoveScriptAttributes(removeScriptAttributes);
	htmlCompressor.setRemoveStyleAttributes(removeStyleAttributes);
	htmlCompressor.setRemoveLinkAttributes(removeLinkAttributes);
	htmlCompressor.setRemoveFormAttributes(removeFormAttributes);
	htmlCompressor.setRemoveInputAttributes(removeInputAttributes);
	htmlCompressor.setSimpleBooleanAttributes(simpleBooleanAttributes);
	htmlCompressor.setRemoveJavaScriptProtocol(removeJavaScriptProtocol);
	htmlCompressor.setRemoveHttpProtocol(removeHttpProtocol);
	htmlCompressor.setRemoveHttpsProtocol(removeHttpsProtocol);
	
	if(compressJavaScript && jsCompressor.equalsIgnoreCase(HtmlCompressor.JS_COMPRESSOR_CLOSURE)) {
		ClosureJavaScriptCompressor closureCompressor = new ClosureJavaScriptCompressor();
		if(closureOptLevel.equalsIgnoreCase(ClosureJavaScriptCompressor.COMPILATION_LEVEL_ADVANCED)) {
			closureCompressor.setCompilationLevel(CompilationLevel.ADVANCED_OPTIMIZATIONS);
		} else if(closureOptLevel.equalsIgnoreCase(ClosureJavaScriptCompressor.COMPILATION_LEVEL_WHITESPACE)) {
			closureCompressor.setCompilationLevel(CompilationLevel.WHITESPACE_ONLY);
		} else {
			closureCompressor.setCompilationLevel(CompilationLevel.SIMPLE_OPTIMIZATIONS);
		}
		htmlCompressor.setJavaScriptCompressor(closureCompressor);
	}
	
	try {
		bodyContent.clear();
		bodyContent.append(htmlCompressor.compress(content));
		bodyContent.writeOut(pageContext.getOut());
	} catch (Exception e) {
		throw new JspException("Failed to compress html",e);
	}
	
	return super.doEndTag();
}
 

@Override
public int doEndTag() throws JspException {
	
	BodyContent bodyContent = getBodyContent();
	String content = bodyContent.getString();

	try {
		if(enabled) {
			
			String result = content;
			
			if(jsCompressor.equalsIgnoreCase(HtmlCompressor.JS_COMPRESSOR_CLOSURE)) {
				//call Closure compressor
				ClosureJavaScriptCompressor closureCompressor = new ClosureJavaScriptCompressor();
				if(closureOptLevel.equalsIgnoreCase(ClosureJavaScriptCompressor.COMPILATION_LEVEL_ADVANCED)) {
					closureCompressor.setCompilationLevel(CompilationLevel.ADVANCED_OPTIMIZATIONS);
				} else if(closureOptLevel.equalsIgnoreCase(ClosureJavaScriptCompressor.COMPILATION_LEVEL_WHITESPACE)) {
					closureCompressor.setCompilationLevel(CompilationLevel.WHITESPACE_ONLY);
				} else {
					closureCompressor.setCompilationLevel(CompilationLevel.SIMPLE_OPTIMIZATIONS);
				}
				
				result = closureCompressor.compress(content);
				
			} else {
				//call YUICompressor
				YuiJavaScriptCompressor yuiCompressor = new YuiJavaScriptCompressor();
				yuiCompressor.setDisableOptimizations(yuiJsDisableOptimizations);
				yuiCompressor.setLineBreak(yuiJsLineBreak);
				yuiCompressor.setNoMunge(yuiJsNoMunge);
				yuiCompressor.setPreserveAllSemiColons(yuiJsPreserveAllSemiColons);
				
				result = yuiCompressor.compress(content);
			}
			
			bodyContent.clear();
			bodyContent.append(result);
			bodyContent.writeOut(pageContext.getOut());
		} else {
			bodyContent.clear();
			bodyContent.append(content);
			bodyContent.writeOut(pageContext.getOut());
		}

	} catch (Exception e) {
		throw new JspException("Failed to compress javascript",e);
	}
	
	return super.doEndTag();
}