Java Code Examples for com.fasterxml.jackson.core.JsonParser#getValueAsDouble()

private double extractDouble(JsonParser jp, DeserializationContext ctxt, boolean optional) throws IOException {
    JsonToken token = jp.nextToken();
    if (token == null) {
        if (optional)
            return Double.NaN;
        else
            throw ctxt.mappingException("Unexpected end-of-input when binding data into LngLatAlt");
    } else {
        switch (token) {
            case END_ARRAY:
                if (optional)
                    return Double.NaN;
                else
                    throw ctxt.mappingException("Unexpected end-of-input when binding data into LngLatAlt");
            case VALUE_NUMBER_FLOAT:
                return jp.getDoubleValue();
            case VALUE_NUMBER_INT:
                return jp.getLongValue();
            case VALUE_STRING:
                return jp.getValueAsDouble();
            default:
                throw ctxt.mappingException(
                        "Unexpected token (" + token.name() + ") when binding data into LngLatAlt");
        }
    }
}
 

/**
 * Get Node type from the parser
 *
 * @param jsonParser
 * @return Node - return Node type based on json token
 */
private Node getValue( JsonParser jsonParser, String key ) {
  try {
    switch ( jsonParser.currentToken() ) {
      case START_OBJECT:
        return new ObjectNode( key );
      case START_ARRAY:
        return new ArrayNode( key );
      case VALUE_STRING:
        return new ValueNode<>( key, jsonParser.getValueAsString() );
      case VALUE_TRUE:
      case VALUE_FALSE:
        return new ValueNode<>( key, jsonParser.getValueAsBoolean() );
      case VALUE_NULL:
        return new ValueNode<>( key, null );
      case VALUE_NUMBER_FLOAT:
        return new ValueNode<>( key, jsonParser.getValueAsDouble() );
      case VALUE_NUMBER_INT:
        return new ValueNode<>( key, jsonParser.getValueAsInt() );
    }
  } catch ( IOException ioe ) {
    return null;
  }
  return null;
}
 

static void parseFieldName(JsonParser parser, JsonToken token, ParsingContext context) throws IOException {
    String fieldName = parser.getCurrentName();
    if ("value".equals(fieldName)) {
        parser.nextValue();
        context.value = parser.getValueAsDouble();
    } else {
        if (context.child == null) {
            context.child = NodeCalc.parseJson(parser, token);
        } else {
            throw new TimeSeriesException("Only 1 operand expected for a min/max");
        }
    }
}
 

private static Object readTokenObject(JsonParser jp, JsonToken token) throws IOException {
	switch (token) {
	case VALUE_NUMBER_INT: return jp.getValueAsInt();
	case VALUE_NUMBER_FLOAT: return jp.getValueAsDouble();
	case VALUE_FALSE: return false;
	case VALUE_TRUE: return true;
	case VALUE_NULL: return null;
	case VALUE_STRING: return jp.getValueAsString();
	default:
		throw new IllegalStateException("Token type not allowed in value collections: " + token);
	}
}
 

@Override
public Double parse(JsonParser parser, Field field) throws IOException {
    return isValid(parser) ? new Double(parser.getValueAsDouble()) : null;
}
 

@Override
    public Object read(JSONReader reader, JsonParser p) throws IOException
    {
        switch (_typeId) {

        case SER_INT_ARRAY:
            return _readIntArray(p);

        case SER_TREE_NODE:
            return reader.readTree();

        // Textual types, related:
        case SER_STRING:
        case SER_CHARACTER_SEQUENCE:
            return p.getValueAsString();
        case SER_CHAR_ARRAY:
            return p.getValueAsString().toCharArray();
        case SER_BYTE_ARRAY:
            return _readBinary(p);

        // Number types:
            
        case SER_NUMBER_FLOAT: // fall through
            return Float.valueOf((float) p.getValueAsDouble());
        case SER_NUMBER_DOUBLE:
            return p.getValueAsDouble();

        case SER_NUMBER_BYTE: // fall through
            return (byte) p.getValueAsInt();
            
        case SER_NUMBER_SHORT: // fall through
            return (short) p.getValueAsInt();
        case SER_NUMBER_INTEGER:
            return p.getValueAsInt();
        case SER_NUMBER_LONG:
            return p.getValueAsLong();

        case SER_NUMBER_BIG_DECIMAL:
            return p.getDecimalValue();

        case SER_NUMBER_BIG_INTEGER:
            return p.getBigIntegerValue();

        // Other scalar types:

        case SER_BOOLEAN:
            return p.getValueAsBoolean();
            
        case SER_CHAR:
            {
                String str = p.getValueAsString();
                return (str == null || str.isEmpty()) ? ' ' : str.charAt(0);
            }
            
        case SER_CALENDAR:
            {
                long l = _fetchLong(p);
                Calendar cal = Calendar.getInstance();
                cal.setTimeInMillis(l);
                return cal;
            }

        case SER_DATE:
            return new Date(_fetchLong(p));

        case SER_CLASS:
        {
            String v = p.getValueAsString();
            try {
                return Class.forName(v);
            } catch (Exception e) {
                throw new JSONObjectException("Failed to bind java.lang.Class from value '"+v+"'");
            }
        }
        case SER_FILE:
            return new File(p.getValueAsString());
        case SER_UUID:
            return UUID.fromString(p.getValueAsString());
        case SER_URL:
            return new URL(p.getValueAsString());
        case SER_URI:
        
            return URI.create(p.getValueAsString());

//        case SER_MAP:
//        case SER_LIST:
//        case SER_COLLECTION:
//        case SER_OBJECT_ARRAY:
            // should never get here: we have dedicated readers
        default: // types that shouldn't get here
        //case SER_ENUM:
        }
        
        throw JSONObjectException.from(p,
                "Can not create a "+_valueType.getName()+" instance out of "+_tokenDesc(p));
    }
 

protected JsonValue(final JsonParser jp, final JsonToken firstToken) throws IOException {

		switch(firstToken) {

			case START_OBJECT:
				type = TYPE_OBJECT;
				value = new JsonBufferedObject();
				this.jp = jp;
				break;

			case START_ARRAY:
				type = TYPE_ARRAY;
				value = new JsonBufferedArray();
				this.jp = jp;
				break;

			case VALUE_FALSE:
				type = TYPE_BOOLEAN;
				value = false;
				break;

			case VALUE_TRUE:
				type = TYPE_BOOLEAN;
				value = true;
				break;

			case VALUE_NULL:
				type = TYPE_NULL;
				value = null;
				break;

			case VALUE_STRING:
				type = TYPE_STRING;
				value = jp.getValueAsString();
				break;

			case VALUE_NUMBER_FLOAT:

				//noinspection FloatingPointEquality,UnnecessaryExplicitNumericCast
				if(jp.getValueAsDouble() == (double)jp.getValueAsLong()) {
					type = TYPE_INTEGER;
					value = jp.getValueAsLong();
				} else {
					type = TYPE_FLOAT;
					value = jp.getValueAsDouble();
				}

				break;

			case VALUE_NUMBER_INT:
				type = TYPE_INTEGER;
				value = jp.getValueAsLong();
				break;

			default:
				throw new JsonParseException(jp, "Expecting an object, literal, or array", jp.getCurrentLocation());
		}
	}