Examples of hirondelle.web4j.model.ModelCtorException

hirondelle.web4j.model.ModelCtorException

el Object constructor Blah(String aText, int aID) throws ModelCtorException { //check validity of all params. //if one or more params is invalid, throw a ModelCtorException. //for each invalid param, add a corresponding error message to //ModelCtorException. } //call the Model Object constructor try { Blah blah = new Blah(text, id); } catch(ModelCtorException ex){ //place the exception in scope, for subsequent //display to the user in a JSP }

In the case of an error, the problem arises of how to redisplay the original, erroneous user input. The {@link hirondelle.web4j.ui.tag.Populate} tag accomplishes this in an elegant manner, simply by recycling the original request parameters.

  private static final String END_OF_INPUT = "\\Z";  
  //note the user of a logger attached to a public class
  private static final Logger fLogger = Util.getLogger(PerformanceMonitor.class);


  private void validateState(){
    ModelCtorException ex = new ModelCtorException();
    
    if ( FAILS == Check.required(fTargetURL, Check.pattern(HTTP_TARGET)) ) {
      ex.add("Target URL is required, must start with 'http://'.");
    }
    if( Util.textHasContent(fTargetURL)) {
      try {
        URL testUrl = new URL(fTargetURL);
      }
      catch(MalformedURLException exception){
        ex.add("Target URL is malformed.");
      }
    }
    
    if ( FAILS == Check.required(fPingFrequency, Check.range(1,60))) {
      ex.add("Ping Frequency is required, must be in range 1..60 minutes.");
    }
    if ( FAILS == Check.required(fTimeout, Check.range(1,60))) {
      ex.add("Timeout is required, must be in range 1..60 seconds.");
    }
    
    if ( ! ex.isEmpty() ) {
      throw new IllegalArgumentException("Cannot construct BadResponseDetector : " + ex.toString(), ex);
    }
  }

Examples of hirondelle.web4j.model.ModelCtorException

Related Classes of hirondelle.web4j.model.ModelCtorException