limbo/bindings/java/rs_src/utils.rs
2025-07-03 10:56:05 -03:00

55 lines
1.8 KiB
Rust

use crate::errors::TursoError;
use jni::objects::{JByteArray, JObject};
use jni::JNIEnv;
pub(crate) fn utf8_byte_arr_to_str(
env: &JNIEnv,
bytes: JByteArray,
) -> crate::errors::Result<String> {
let bytes = env
.convert_byte_array(bytes)
.map_err(|_| TursoError::CustomError("Failed to retrieve bytes".to_string()))?;
let str = String::from_utf8(bytes).map_err(|_| {
TursoError::CustomError("Failed to convert utf8 byte array into string".to_string())
})?;
Ok(str)
}
/// Sets the error message and throws a Java exception.
///
/// This function converts the provided error message to a byte array and calls the
/// `throwTursoException` method on the provided Java object to throw an exception.
///
/// # Parameters
/// - `env`: The JNI environment.
/// - `obj`: The Java object on which the exception will be thrown.
/// - `err_code`: The error code corresponding to the exception. Refer to `tech.turso.core.Codes` for the list of error codes.
/// - `err_msg`: The error message to be included in the exception.
///
/// # Example
/// ```rust
/// set_err_msg_and_throw_exception(env, obj, Codes::SQLITE_ERROR, "An error occurred".to_string());
/// ```
pub fn set_err_msg_and_throw_exception<'local>(
env: &mut JNIEnv<'local>,
obj: JObject<'local>,
err_code: i32,
err_msg: String,
) {
let error_message_bytes = env
.byte_array_from_slice(err_msg.as_bytes())
.expect("Failed to convert to byte array");
match env.call_method(
obj,
"throwTursoException",
"(I[B)V",
&[err_code.into(), (&error_message_bytes).into()],
) {
Ok(_) => {
// do nothing because above method will always return Err
}
Err(_e) => {
// do nothing because our java app will handle Err
}
}
}