Example usage for javax.servlet.jsp JspTagException JspTagException

Introduction

In this page you can find the example usage for javax.servlet.jsp JspTagException JspTagException.

Prototype


public JspTagException(Throwable rootCause)

Source Link

Document

Constructs a new JSP Tag exception when the JSP Tag needs to throw an exception and include a message about the "root cause" exception that interfered with its normal operation.

Usage

From source file:org.displaytag.util.DependencyChecker.java

/**
 * Displaytag requires commons-lang 2.x or better; it is not compatible with earlier versions.
 * @throws JspTagException if the wrong library, or no library at all, is found.
 *//* w  w  w.  j a  v a2  s. c om*/
public static void check() throws JspTagException {
    if (commonsLangChecked) {
        return;
    }
    try {
        // Do they have commons lang ?
        Class stringUtils = Class.forName("org.apache.commons.lang.StringUtils"); //$NON-NLS-1$
        try {
            // this method is new in commons-lang 2.0
            stringUtils.getMethod("capitalize", new Class[] { String.class }); //$NON-NLS-1$
        } catch (NoSuchMethodException ee) {
            throw new JspTagException(Messages.getString("DependencyChecker.lib.incompatible", //$NON-NLS-1$
                    new Object[] { "commons-lang", new Integer(2), "http://jakarta.apache.org/commons/lang" } //$NON-NLS-1$
            ));
        }
    } catch (ClassNotFoundException e) {
        throw new JspTagException(Messages.getString("DependencyChecker.lib.missing", //$NON-NLS-1$
                new Object[] { "commons-lang", new Integer(2), "http://jakarta.apache.org/commons/lang" } //$NON-NLS-1$
        ));
    }
    commonsLangChecked = true;
}

From source file:org.terasoluna.gfw.web.util.JspTagUtils.java

/**
 * Convert to the Boolean value.//from   w  ww  .  j av  a2s.  co m
 * @param attributeValue string value of attribute
 * @param defaultValue If attribute value is not text(null or blank or whitespace only), apply this value.
 * @param attributeName attribute name (If attribute value is not true or false, sets in exception message)
 * @return converted Boolean value
 * @throws JspTagException If value that is not true or false is specified.
 */
public static boolean toBoolean(String attributeValue, boolean defaultValue, String attributeName)
        throws JspTagException {
    if (StringUtils.hasText(attributeValue)) {
        if ("true".equalsIgnoreCase(attributeValue) || "false".equalsIgnoreCase(attributeValue)) {
            return Boolean.parseBoolean(attributeValue);
        } else {
            throw new JspTagException("The value of " + attributeName + " must be either true or false.");
        }
    }
    return defaultValue;
}

From source file:org.kmnet.com.fw.web.util.JspTagUtils.java

/**
 * Convert to the Boolean value./*from  w  w w  . j  a v a  2s.  c o  m*/
 * @param attributeValue string value of attribute
 * @param defaultValue If attribute value is not text(null or blank or whitespace only), apply this value.
 * @param attributeName attribute name (If attribute value is not true or false, sets in exception message)
 * @return converted Boolean value
 * @throws JspTagException If value that is not true or false is specified.
 */
public static boolean toBoolean(String attributeValue, boolean defaultValue, String attributeName)
        throws JspTagException {
    if (StringUtils.hasText(attributeValue)) {
        if (attributeValue.equalsIgnoreCase("true") || attributeValue.equalsIgnoreCase("false")) {
            return Boolean.parseBoolean(attributeValue);
        } else {
            throw new JspTagException("The value of " + attributeName + " must be either true or false.");
        }
    }
    return defaultValue;
}

From source file:com.rsmart.certification.tool.tag.AbstractLocalizableTag.java

/**
 * Resolve the specified message into a concrete message String.
 * The returned message String should be unescaped.
 * @param message//ww w  .  j a  v  a 2 s . com
 * @return
 * @throws javax.servlet.jsp.JspException
 */
protected String resolveMessage(String message) throws JspException, NoSuchMessageException {
    MessageSource messageSource = getMessageSource();
    if (messageSource == null) {
        throw new JspTagException("No corresponding MessageSource found");
    }

    return messageSource.getMessage(message, null, "??" + message + "??", getRequestContext().getLocale());
}

From source file:gov.nih.nci.calims2.taglib.EnumTag.java

/**
 * {@inheritDoc}/*from   ww  w.  j  ava 2 s  .co m*/
 */
public int doStartTag() throws JspException {
    try {
        Locale locale = TagHelper.getRequestContext(pageContext).getLocale();
        if (value != null) {
            String message = (propertyName == null) ? value.getLocalizedValue(locale)
                    : getPropertyValue(locale);
            pageContext.getOut().print(StringEscapeUtils.escapeHtml(message));
        }
        return SKIP_BODY;
    } catch (IOException e) {
        throw new JspException(e);
    } catch (Exception e) {
        throw new JspTagException(e);
    }
}

From source file:net.sourceforge.subsonic.taglib.WikiTag.java

public int doEndTag() throws JspException {
    String result;//from   ww  w  .  j a  va  2s  .c  o m
    synchronized (RENDER_ENGINE) {
        result = RENDER_ENGINE.render(StringEscapeUtils.unescapeXml(text), RENDER_CONTEXT);
    }
    try {
        pageContext.getOut().print(result);
    } catch (IOException x) {
        throw new JspTagException(x);
    }
    return EVAL_PAGE;
}

From source file:org.codehaus.groovy.grails.web.taglib.jsp.JspRenderInputTag.java

@Override
protected int doStartTagInternal() throws Exception {

    if (StringUtils.isBlank(property)) {
        throw new JspTagException("Tag [renderInput] missing required attribute [property]");
    }/*from  w  ww .j av a 2  s. c o m*/
    if (StringUtils.isBlank(bean)) {
        throw new JspTagException("Tag [renderInput] missing required attribute [bean]");
    }
    if (!ExpressionEvaluationUtils.isExpressionLanguage(bean)) {
        throw new JspTagException("Attribute [bean] of tag [renderInput] must be a JSTL expression");
    }

    @SuppressWarnings("unused")
    Writer out = pageContext.getOut();
    try {
        Object beanInstance = ExpressionEvaluationUtils.evaluate("bean", bean, Object.class, pageContext);
        if (beanInstance == null) {
            throw new JspTagException("Bean [" + bean + "] referenced by tag [renderInput] cannot be null");
        }

        GrailsTagRegistry tagRegistry = GrailsTagRegistry.getInstance();
        Map<String, Object> tagContext = new HashMap<String, Object>();
        tagContext.put(GroovyPage.REQUEST, pageContext.getRequest());
        tagContext.put(GroovyPage.RESPONSE, pageContext.getResponse());
        tagContext.put(GroovyPage.SERVLET_CONTEXT, pageContext.getServletContext());
        RenderInputTag tag = (RenderInputTag) tagRegistry.newTag(RenderInputTag.TAG_NAME);
        tag.init(tagContext);
        tag.setBean(beanInstance);
        tag.setProperty(property);
        tag.doStartTag();
    } catch (InvalidPropertyException ipe) {
        throw new JspException("Attribute [property] with value [" + property
                + "] is not a valid property of bean [" + bean + "] in tag [renderInput]", ipe);
    }
    return SKIP_BODY;
}

From source file:net.sourceforge.subsonic.taglib.FormatBytesTag.java

public int doEndTag() throws JspException {
    Locale locale = RequestContextUtils.getLocale((HttpServletRequest) pageContext.getRequest());
    String result = StringUtil.formatBytes(bytes, locale);

    try {/*from  w w  w  .j  av  a  2s .  c o m*/
        pageContext.getOut().print(result);
    } catch (IOException x) {
        throw new JspTagException(x);
    }
    return EVAL_PAGE;
}

From source file:com.benfante.taglib.frontend.tags.AlertTag.java

protected final int doStartTagInternal() throws JspException, IOException {
    try {//from   w ww. ja  v  a  2s .  co m
        Map<String, String> flash = (Map<String, String>) pageContext.getRequest().getAttribute("flash");
        if (flash == null)
            flash = (Map<String, String>) pageContext.getSession().getAttribute("flash");
        if (flash != null && flash.get(type) != null) {
            // Resolve the message.
            MessageSource messageSource = getMessageSource();
            if (messageSource == null) {
                throw new JspTagException("No corresponding MessageSource found");
            }
            String msg = "";
            try {
                Object[] argumentsArray = {};
                msg = messageSource.getMessage(flash.get(type), argumentsArray,
                        getRequestContext().getLocale());
            } catch (Exception ex) {
                // If the message is unresolved, use the key as message
                msg = flash.get(type);
            }

            // Write the message
            writeMessage(msg);

            // And clean the session
            flash.remove(type);
        }
        return EVAL_BODY_INCLUDE;
    } catch (NoSuchMessageException ex) {
        throw new JspTagException(getNoSuchMessageExceptionDescription(ex));
    }
}

From source file:net.sourceforge.subsonic.taglib.EscapeJavaScriptTag.java

public int doEndTag() throws JspException {
    try {//from  www .  j a  v  a 2s. c om
        pageContext.getOut().print(StringEscapeUtils.escapeJavaScript(string));
    } catch (IOException x) {
        throw new JspTagException(x);
    }
    return EVAL_PAGE;
}