exceptionHandler

A java 8 lambda based exception handler, it represents a convenient way to get rid of the legacy try-catch blocks in java, by making use of the advantages provided by the functoinal behaviour in java 8 and above.

Example of use

  TryCatcher tryCatcher = new TryCatcher(() -> {
            int i;
            String s = "a string that cannot be parsed to a number ! ";
            i = Integer.parseInt(s); // exception here
            System.out.println(i);
        }, (throwable) -> throwable.printStackTrace());
               tryCatcher.execute();

Or

  TryBlock tryBlock = () -> {
  // your code goes here
            throw new Exception(MESSAGE);
        };
        CatchBlock catchBlock =  throwable -> {
        // and handle the thrown exception here
            throwable.printStackTrace();
        };

        TryCatcher tryCatcher = new TryCatcher(tryBlock,catchBlock);
        tryCatcher.execute();

Specific handlers

    TryBlock tryBlock = () -> {
             /*
             some statements or method invocations that may result
             null pointer or illegal argument exceptions
              */
         };
 
         CatchBlock illegalArgBlock = throwable -> {
             /*
             logic to perform when a null Pointer exception is caught
             */
         };
 
         CatchBlock nullPointerBlock = throwable -> {
            /*
            logic to perform when a null Pointer exception is caught
             */
         };
         TryCatcher tryCatcher = new TryCatcher(tryBlock);
 
         tryCatcher
                 .when(NullPointerException.class, nullPointerBlock)
                 .when(IllegalArgumentException.class, illegalArgBlock)
                 .execute();