limbo/bindings/java/rs_src/utils.rs

use crate::errors::CustomError;
use jni::objects::{JObject, JValue};
use jni::JNIEnv;

pub(crate) fn row_to_obj_array<'local>(
    env: &mut JNIEnv<'local>,
    row: &limbo_core::Row,
) -> Result<JObject<'local>, CustomError> {
    let obj_array =
        env.new_object_array(row.values.len() as i32, "java/lang/Object", JObject::null())?;

    for (i, value) in row.values.iter().enumerate() {
        let obj = match value {
            limbo_core::Value::Null => JObject::null(),
            limbo_core::Value::Integer(i) => {
                env.new_object("java/lang/Long", "(J)V", &[JValue::Long(*i)])?
            }
            limbo_core::Value::Float(f) => {
                env.new_object("java/lang/Double", "(D)V", &[JValue::Double(*f)])?
            }
            limbo_core::Value::Text(s) => env.new_string(s)?.into(),
            limbo_core::Value::Blob(b) => env.byte_array_from_slice(b)?.into(),
        };
        if let Err(e) = env.set_object_array_element(&obj_array, i as i32, obj) {
            eprintln!("Error on parsing row: {:?}", e);
        }
    }

    Ok(obj_array.into())
}