Examples of org.apache.shale.util.TokenProcessor

org.apache.shale.util.TokenProcessor

Utility methods supporting the generation and validation of transaction tokens, used to avoid duplicate form submits.
$Id: TokenProcessor.java 464373 2006-10-16 04:21:54Z rahul $

        super.validate(context);
        String token = (String) getValue();
        if (log.isDebugEnabled()) {
            log.debug("Validating token '" + token + "'");
        }
        TokenProcessor tp = getTokenProcessor(context);
        if (!tp.verify(context, token)) {
            if (log.isDebugEnabled()) {
                log.debug("  Validation failed!");
            }
            setValid(false);
            String summary = getErrorSummaryMessage(context);

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        }


        // Generate a new token value and cache it for reuse if the
        // current view is rerendered
        FacesContext context = FacesContext.getCurrentInstance();
        TokenProcessor tp = getTokenProcessor(context);
        String token = tp.generate(context);
        getAttributes().put(TOKEN_ATTRIBUTE_KEY, token);
        if (log.isDebugEnabled()) {
            log.debug("Generating token '" + token + "'");
        }
        return token;

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     *
     * @param context <code>FacesContext</code> for the current request
     */
     private TokenProcessor getTokenProcessor(FacesContext context) {


         TokenProcessor tp = (TokenProcessor) context.getExternalContext().
           getApplicationMap().get(ShaleConstants.TOKEN_PROCESSOR);
         if (tp == null) {
             tp = new TokenProcessor();
             context.getExternalContext().
               getApplicationMap().put(ShaleConstants.TOKEN_PROCESSOR, tp);
         }
         return tp;

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