org.thymeleaf.standard.expression.IStandardExpression Java Examples

@Override
protected void doProcess(ITemplateContext context, IProcessableElementTag tag,
                         IElementTagStructureHandler structureHandler) {
    String fieldName = tag.getAttribute(FIELD_NAME).getValue();
    String keyy = tag.getAttribute(KEYY).getValue();

    final IEngineConfiguration configuration = context.getConfiguration();
    final IStandardExpressionParser parser = StandardExpressions.getExpressionParser(configuration);
    final IStandardExpression expression = parser.parseExpression(context, keyy);
    final String realvalue = String.valueOf(expression.execute(context));

    ApplicationContext appCtx = SpringContextUtils.getApplicationContext(context);
    DictService dictService = appCtx.getBean(DictService.class);
    Dict dict = dictService.findDictByFieldNameAndKeyy(fieldName, realvalue);

    if (log.isDebugEnabled()) {
        log.debug("dict== fieldName:{}, keyy:{}, realvalue:{}", fieldName, keyy, realvalue);
    }
    String label = "";
    if (dict != null) {
        label = dict.getValuee();
    }
    structureHandler.replaceWith(label, false);
}
 

protected void doProcess(final ITemplateContext context, final IProcessableElementTag tag,
		final AttributeName attributeName, final String attributeValue,
		final IElementTagStructureHandler structureHandler) {

	IStandardExpressionParser expressionParser = StandardExpressions
			.getExpressionParser(context.getConfiguration());

	IStandardExpression expression = expressionParser.parseExpression(context, attributeValue);
	Boolean enabled = (Boolean) expression.execute(context);

	if (enabled) {
		expression = expressionParser.parseExpression(context, "@{/resources/konker/images/enabled.svg}");
	} else {
		expression = expressionParser.parseExpression(context, "@{/resources/konker/images/disabled.svg}");
	}

	structureHandler.setAttribute("src", (String) expression.execute(context));
	structureHandler.setAttribute("class", (String) "enabled-img");

}
 

@Override
protected void doProcess(ITemplateContext context, IProcessableElementTag tag, AttributeName attributeName,
		String attributeValue, IElementTagStructureHandler structureHandler) {
	final IEngineConfiguration configuration = context.getConfiguration();
	final IStandardExpressionParser parser = StandardExpressions.getExpressionParser(configuration);
	final IStandardExpression expression = parser.parseExpression(context, attributeValue);
	final String title = (String) expression.execute(context);
	structureHandler.setBody(title + " - " + MaydayConst.OPTIONS.get("blog_name"), false);
}
 

public static Object evaluate(IExpressionContext context, String expressionValue) {
    final String value = String.valueOf(expressionValue).trim();
    final IStandardExpressionParser expressionParser = StandardExpressions
            .getExpressionParser(context.getConfiguration());
    final IStandardExpression expression = expressionParser.parseExpression(context, value);

    return expression.execute(context);
}
 

@Override
protected void doProcess(ITemplateContext context, IProcessableElementTag tag,
                         IElementTagStructureHandler structureHandler) {
    String fieldName = tag.getAttribute(FIELD_NAME).getValue();
    IAttribute valueAttr = tag.getAttribute(KEYY);
    IAttribute clsAttr = tag.getAttribute(CLS);
    IAttribute nameAttr = tag.getAttribute(NAME);
    IAttribute idAttr = tag.getAttribute(ID);
    final IEngineConfiguration configuration = context.getConfiguration();
    final IStandardExpressionParser parser = StandardExpressions.getExpressionParser(configuration);
    String realvalue = "";
    if (valueAttr != null) {
        final IStandardExpression valueexpression = parser.parseExpression(context, valueAttr.getValue());
        realvalue = String.valueOf(valueexpression.execute(context));

        if (log.isDebugEnabled())
            log.debug("dict== fieldName:{}, keyy:{}, realvalue:{}", fieldName, valueAttr.getValue(), realvalue);
    }
    ApplicationContext appCtx = SpringContextUtils.getApplicationContext(context);
    DictService dictService = appCtx.getBean(DictService.class);
    List<Dict> dicts = dictService.findDictByFieldName(fieldName);
    StringBuilder options = new StringBuilder();
    String selected = "";
    for (Dict dict : dicts) {
        if (valueAttr != null && realvalue.equals(dict.getKeyy()))
            selected = " selected=selected ";
        else
            selected = "";
        options.append("<option value=\"").append(dict.getKeyy()).append("\" ").append(selected).append(">").append(dict.getValuee()).append("</option>");
    }
    StringBuilder select = new StringBuilder("<select");
    if (clsAttr != null)
        select.append(" class=\"").append(clsAttr.getValue()).append("\"");
    if (nameAttr != null)
        select.append(" name=\"").append(nameAttr.getValue()).append("\"");
    if (idAttr != null)
        select.append("  id=\"").append(idAttr.getValue()).append("\"");
    select.append(">");
    select.append(options);
    select.append("<select>");

    structureHandler.replaceWith(select.toString(), false);
}
 

public static Page<?> findPage(final ITemplateContext context) {
    // 1. Get Page object from local variables (defined with sd:page-object)
    // 2. Search Page using ${page} expression
    // 3. Search Page object as request attribute

    final Object pageFromLocalVariable = context.getVariable(Keys.PAGE_VARIABLE_KEY);
    if (isPageInstance(pageFromLocalVariable)) {
        return (Page<?>) pageFromLocalVariable;
    }

    // Check if not null and Page instance available with ${page} expression
    final IEngineConfiguration configuration = context.getConfiguration();
    final IStandardExpressionParser parser = StandardExpressions.getExpressionParser(configuration);
    final IStandardExpression expression = parser.parseExpression(context, Keys.PAGE_EXPRESSION);
    final Object page = expression.execute(context);
    if (isPageInstance(page)) {
        return (Page<?>) page;
    }

    // Search for Page object, and only one instance, as request attribute
    if (context instanceof IWebContext) {
        HttpServletRequest request = ((IWebContext) context).getRequest();
        Enumeration<String> attrNames = request.getAttributeNames();
        Page<?> pageOnRequest = null;
        while (attrNames.hasMoreElements()) {
            String attrName = (String) attrNames.nextElement();
            Object attr = request.getAttribute(attrName);
            if (isPageInstance(attr)) {
                if (pageOnRequest != null) {
                    throw new InvalidObjectParameterException("More than one Page object found on request!");
                }

                pageOnRequest = (Page<?>) attr;
            }
        }

        if (pageOnRequest != null) {
            return pageOnRequest;
        }
    }

    throw new InvalidObjectParameterException("Invalid or not present Page object found on request!");
}
 

public static Object evaluateExpression(ITemplateContext arguments, String expression) throws TemplateProcessingException {
    notNull(arguments, "arguments must not be null");
    notEmpty(expression, "expression must not be empty");

    final IStandardExpressionParser parser = new StandardExpressionParser();

    final IStandardExpression evaluableExpression = parser.parseExpression(arguments, expression);

    return evaluableExpression.execute(arguments);
}