Class ProcessMultiDimJsonArray

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method
      protected static <BASIC_TYPE,
           ​STREAM_TYPE,
           ​RETURN_ARR_TYPE>
      RETURN_ARR_TYPE      		 jsonArrayToJava​(JsonArray ja, SettingsRec<BASIC_TYPE,​STREAM_TYPE> rec, Class<RETURN_ARR_TYPE> retArrClass)

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • jsonArrayToJava

        ⇈  ⮫ 🗕  🗗  🗖 
        protected static <BASIC_TYPE,​STREAM_TYPE,​RETURN_ARR_TYPE> RETURN_ARR_TYPE jsonArrayToJava​
            (JsonArray ja,
             SettingsRec<BASIC_TYPE,​STREAM_TYPE> rec,
             java.lang.Class<RETURN_ARR_TYPE> retArrClass)
        Code:
        Exact Method Body:
         // If this is requesting a one-dimensional array, get it using the 1D-Generator,
 // and simply return that array.  This requires a cast because there is no way to prove
 // to the Java-Compiler that <T> is equal to any return-value at all.
 //
 // Remember that this is only guaranteed (it works!) because the helper methods are all
 // protected or private, and it has been guaranteed through rigorous testing, and
 // preventing the user from playing with it!

 if (StringParse.countCharacters(retArrClass.getSimpleName(), '[') == 1)
     return (RETURN_ARR_TYPE) rec.array1DGenerator.apply(ja);


 // Otherwise, this is not a single-dimension (1D) array.  Instead, the JsonArray needs
 // to be iterated, and this method called, recursively, on each of the sub-arrays.
 //
 // NOTE: 'compClass' will also be an array, but with one fewer dimensions

 final Class<?>          compClass   = retArrClass.getComponentType();
 final int               SIZE        = ja.size();
 final RETURN_ARR_TYPE   retArr      = (RETURN_ARR_TYPE) Array.newInstance(compClass, SIZE);

 JsonValue jv = null;

 for (int i=0; i < SIZE; i++)

     switch ((jv = ja.get(i)).getValueType())
     {
         // javax.json.JsonValue.ValueType.NULL
         case NULL: Array.set(retArr, i, null); break;

         // javax.json.JsonValue.ValueType.ARRAY (JsonArray)
         case ARRAY:

             Array.set(
                 retArr,
                 i,
                 JSON_ARRAY_DIMN.jsonArrayToJava((JsonArray) jv, rec, compClass)
             );

             break;

         // javax.json.JsonValue.ValueType.TRUE, FALSE, NUMBER, STRING, OBJECT
         default:

             if (rec.IN_NSAT)        Array.set(retArr, i, null);
             else if (rec.S_NSAT)    continue;
             else throw new JsonTypeArrException(ja, i, ARRAY, jv, retArrClass);
     }

 return retArr;