Type checking / drop optimization for json building

Question

I am working on a project where we use javax.jsonto process our requests / responses. The implementation we use is org.glassfish.json. What bothers me is that it does not support add / write Object. So I created methods where I have to check every type that this implementation supports. Something like that:

private static void addTypeSafeValue(JsonObjectBuilder jsonBuilder, String key, Object value) {
        if (value instanceof String) {
            jsonBuilder.add(key, value.toString());
        } else if (value instanceof Integer) {
            jsonBuilder.add(key, (int) value);
        } else if (value instanceof Boolean) {
            jsonBuilder.add(key, (boolean) value);
        } else if (value instanceof Long) {
            jsonBuilder.add(key, (long) value);
        } else if (value instanceof Double) {
            jsonBuilder.add(key, (double) value);
        } else if (value instanceof Uri) {
            jsonBuilder.add(key, ((Uri) value).toString());
        } else if (value instanceof Map) {
            jsonBuilder.add(key, convertToJsonObject((Map<String, ?>) value));
        } else if (value instanceof Collection) {
            jsonBuilder.add(key, convertToJsonArray((Collection<?>) value));
        } else if (value instanceof JsonObject) {
            jsonBuilder.add(key, (JsonObject) value);
        } else if (value instanceof JsonArray) {
            jsonBuilder.add(key, (JsonArray) value);
        } else {
            throw new IllegalArgumentException("Not implemented for: " + value.getClass());
        }
    }

I am wondering if there is any way to optimize this code. The other part is what I want to pass JsonObjectBuildereither JsonGeneratorfor the consumer to cut back on some duplicate checks / code.

Answer 1

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