[GitHub] [camel] henka-rl commented on pull request #6267: CAMEL-17075 Moved initialisation from evaluate() to init()

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henka-rl commented on pull request #6267:
URL: https://github.com/apache/camel/pull/6267#issuecomment-942387730


   I tried to solve the issue with parsing exception in init like this:
   `    @Override
       public <T> T evaluate(Exchange exchange, Class<T> type) {
           if (expressionException == null) {
               return expression.evaluate(exchange, type);
           } else {
               throw expressionException;
           }
       }
   
       @Override
       public boolean matches(Exchange exchange) {
           if (predicateException == null) {
               return predicate.matches(exchange);
           } else {
               throw predicateException;
           }
       }
   
       @Override
       public void init(CamelContext context) {
           simple = context.resolveLanguage("simple");
           text = context.resolvePropertyPlaceholders(text);
   
           try {
               if (resultType != null) {
                   Object[] properties = new Object[2];
                   properties[0] = resultType;
                   expression = simple.createExpression(text, properties);
               } else {
                   expression = simple.createExpression(text);
               }
               expression.init(context);
           } catch (RuntimeCamelException e) {
               expressionException = e;
           }
           try {
               predicate = simple.createPredicate(text);
               predicate.init(context);
           } catch (RuntimeCamelException e) {
               predicateException = e;
           }
       }`
   But not all testcases pass anyway as it looks like init() is not called 
before the first call to evaluate() or matches()
       


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