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   1  package customValidators
   2  {
   3      import com.adobe.serialization.json.JSON;
   4      import com.adobe.serialization.json.JSONParseError;
   5      
   6      import mx.validators.ValidationResult;
   7      import mx.validators.Validator;
   8      
   9      import nl.demonsters.debugger.MonsterDebugger;
  10  
  11      public class JSONValidator extends Validator
  12      {
  13          // Define Array for the return value of doValidation().
  14          private var errors:Array;
  15  
  16  		public function JSONValidator()
  17          {
  18              super();
  19          }
  20          
  21          override protected function doValidation(value:Object):Array {
  22              var JSONstring:String = String(value);
  23              errors = [];
  24              if (JSONstring != ''){
  25                  try {
  26                      JSON.decode(JSONstring);
  27                  } catch (err:Error){
  28                      errors.push(new ValidationResult(true, null, "JSON decode failed", 
  29                          "Not able to decode this JSON."));
  30                  }
  31              }
  32              if (this.required && JSONstring == ''){
  33                  errors.push(new ValidationResult(true, null, "Required", 
  34                          "You must enter a value for this argument - for a string argument an empty string can be entered as \"\" or you can disable an optional argument."));
  35              }
  36              return errors;
  37          }
  38          
  39      }
  40  }