How to use

append

method

in

javax.servlet.jsp.JspWriter

@Override
public int doEndTag() throws JspException {
  try {
    if (pageContext.getRequest().isSecure()) {
      pageContext.getOut().append("<script src='https://connect.facebook.net/en_US/all.js'></script>");
    } else {
      pageContext.getOut().append("<script src='http://connect.facebook.net/en_US/all.js'></script>");
    }
    pageContext.getOut().append("<div id='fb-root'></div>");
    pageContext.getOut().append("<script type='text/javascript'>");
    pageContext.getOut().append("FB.init({appId: '" + appId + "', status: true, cookie: true, xfbml: true});");
    pageContext.getOut().append("</script>");
  } catch (IOException e) {
    throw new JspException(e);
  }
  return EVAL_PAGE;
}

@Override
public int doEndTag() throws JspException {
  try {
    if (pageContext.getRequest().isSecure()) {
      pageContext.getOut().append("<script src='https://connect.facebook.net/en_US/all.js'></script>");
    } else {
      pageContext.getOut().append("<script src='http://connect.facebook.net/en_US/all.js'></script>");
    }
    pageContext.getOut().append("<div id='fb-root'></div>");
    pageContext.getOut().append("<script type='text/javascript'>");
    pageContext.getOut().append("FB.init({appId: '" + appId + "', status: true, cookie: true, xfbml: true});");
    pageContext.getOut().append("</script>");
  } catch (IOException e) {
    throw new JspException(e);
  }
  return EVAL_PAGE;
}

/** {@inheritDoc} */
@Override
public PrintWriter append(char c) {
  try {
    writer.append(c);
  } catch (IOException e) {
    log.error("Error when writing in JspWriter", e);
    setError();
  }
  return this;
}

/** {@inheritDoc} */
@Override
public PrintWriter append(CharSequence csq) {
  try {
    writer.append(csq);
  } catch (IOException e) {
    log.error("Error when writing in JspWriter", e);
    setError();
  }
  return this;
}

/** {@inheritDoc} */
@Override
public PrintWriter append(CharSequence csq, int start, int end) {
  try {
    writer.append(csq, start, end);
  } catch (IOException e) {
    log.error("Error when writing in JspWriter", e);
    setError();
  }
  return this;
}

/** {@inheritDoc} */
@Override
public PrintWriter append(CharSequence csq) {
  try {
    writer.append(csq);
  } catch (IOException e) {
    log.error("Error when writing in JspWriter", e);
    setError();
  }
  return this;
}

@Override
public int doStartTag() throws JspException {
 JspWriter out = pageContext.getOut();
 String token = (String) pageContext.getRequest().getAttribute(SecurityTokenValidatorImpl.PEBBLE_SECURITY_TOKEN_PARAMETER);
 if (token != null) {
  try {
   if (query) {
    out.append(SecurityTokenValidatorImpl.PEBBLE_SECURITY_TOKEN_PARAMETER).append("=").append(token);
   } else {
    out.append("<input type=\"hidden\" name=\"").append(SecurityTokenValidatorImpl.PEBBLE_SECURITY_TOKEN_PARAMETER);
    out.append("\" value=\"").append(token).append("\"/>");
   }
  } catch (IOException ioe) {
   throw new JspException(ioe);
  }
 }
 return SKIP_BODY;
}

/** {@inheritDoc} */
@Override
public PrintWriter append(char c) {
  try {
    writer.append(c);
  } catch (IOException e) {
    log.error("Error when writing in JspWriter", e);
    setError();
  }
  return this;
}

/** {@inheritDoc} */
@Override
public PrintWriter append(CharSequence csq, int start, int end) {
  try {
    writer.append(csq, start, end);
  } catch (IOException e) {
    log.error("Error when writing in JspWriter", e);
    setError();
  }
  return this;
}

@Override
public Writer append(char c) throws IOException {
  return getWrapped().append(c);
}

@Override
public Writer append(char c) throws IOException {
  return getWrapped().append(c);
}

@Override
public Writer append(CharSequence csq, int start, int end) throws IOException {
  return getWrapped().append(csq, start, end);
}

@Override
public Writer append(CharSequence csq) throws IOException {
  return getWrapped().append(csq);
}

@Override
public Writer append(CharSequence csq) throws IOException {
  return getWrapped().append(csq);
}

@Override
public Writer append(CharSequence csq, int start, int end) throws IOException {
  return getWrapped().append(csq, start, end);
}

 public void decorateFooter(JspWriter out, PageDecoratorContext pageDecoratorContext) throws IOException {
  Boolean renderFacebookSupport = (Boolean) pageDecoratorContext.getRequest().getAttribute(RENDER_FACEBOOK_SUPPORT_KEY);
  if (renderFacebookSupport != null && renderFacebookSupport) {
   // Find out the app ID
   AbstractBlog abstractBlog = (AbstractBlog) pageDecoratorContext.getRequest().getAttribute(Constants.BLOG_KEY);
   if (abstractBlog instanceof Blog) {
    String appId = ((Blog) abstractBlog).getPluginProperties().getProperty(FACEBOOK_APP_ID_KEY);
    if (appId != null) {
     out.append("<div id=\"fb-root\"></div>\n" +
         "<script src=\"http://connect.facebook.net/en_US/all.js\"></script>\n" +
         "<script>\n" +
         "FB.init({appId: '").append(appId).append("', status: false, cookie: true, xfbml: true, channelUrl: '")
         .append(abstractBlog.getUrl()).append("facebook_channel.html'});\n" +
         "</script>");
    } else {
     // Probably should warn that you need an APP id....
    }
   }
  }
 }
}

  @Override
  public void doTag() throws JspException, IOException {
    if (sheep != null) {
      getJspContext().getOut().write(INJECTION_SUCCESS);
    }
    if (initializerCalled) {
      getJspContext().getOut().append(INITIALIZER_SUCCESS);
    }
  }
}

  @Override
  public void doTag() throws JspException, IOException
  {
   if (sheep != null)
   {
     getJspContext().getOut().write(INJECTION_SUCCESS);
   }
   if (initializerCalled) 
   {
     getJspContext().getOut().append(INITIALIZER_SUCCESS);
   }
  }
}

public void doTag() throws JspException, IOException
{
  JspFragment body = getJspBody();
  if (body != null)
  {
    StringWriter sw = new StringWriter();
    body.invoke(sw);
    setValue(sw.toString());
  }
  
  Object ev = JspSupport.getParam((PageContext) getJspContext(), name, value);
  if (var != null)
  {
    getJspContext().setAttribute(var, JspSupport.getParam((PageContext) getJspContext(), name, value));
  }
  else {
    getJspContext().getOut().append(String.valueOf(ev));
  }
}

public void doTag() throws JspException, IOException
{
  String err = null;
  if (JspSupport.hasError((PageContext) getJspContext(), name)) {
    err = JspSupport.getError((PageContext) getJspContext(), name);
    if (err == null) {
      err = defaultText;
    }
  }
  if (var != null)
  {
    getJspContext().setAttribute(var, err);
  }
  else
  {
    if (err != null)
    {
      getJspContext().getOut().append(Escape.toSafeHtml(err));
    }
  }
}